Merge pull request #8125 from eugenp/revert-8119-BAEL-3275-2

Revert "BAEL-3275: Using blocking queue for pub-sub"

spring-roo/src/main/java/com/baeldung/RooApplication.java

@@ -0,0 +1,23 @@
+package com.baeldung;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * = RooApplication
+ *
+ * TODO Auto-generated class documentation
+ *
+ */
+@SpringBootApplication
+public class RooApplication {
+
+    /**
+     * TODO Auto-generated method documentation
+     *
+     * @param args
+     */
+    public static void main(String[] args) {
+        SpringApplication.run(RooApplication.class, args);
+    }
+}

spring-roo/src/main/java/com/baeldung/config/SpringDataJpaDetachableRepositoryConfiguration.java

@@ -0,0 +1,11 @@
+package com.baeldung.config;
+import org.springframework.roo.addon.layers.repository.jpa.annotations.RooJpaRepositoryConfiguration;
+
+/**
+ * = SpringDataJpaDetachableRepositoryConfiguration
+ TODO Auto-generated class documentation
+ *
+ */
+@RooJpaRepositoryConfiguration
+public class SpringDataJpaDetachableRepositoryConfiguration {
+}

spring-roo/src/main/java/com/baeldung/config/SpringDataJpaDetachableRepositoryConfiguration_Roo_Jpa_Repository_Configuration.aj

@@ -0,0 +1,18 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.config;
+
+import com.baeldung.RooApplication;
+import com.baeldung.config.SpringDataJpaDetachableRepositoryConfiguration;
+import io.springlets.data.jpa.repository.support.DetachableJpaRepositoryImpl;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+privileged aspect SpringDataJpaDetachableRepositoryConfiguration_Roo_Jpa_Repository_Configuration {
+    
+    declare @type: SpringDataJpaDetachableRepositoryConfiguration: @Configuration;
+    
+    declare @type: SpringDataJpaDetachableRepositoryConfiguration: @EnableJpaRepositories(repositoryBaseClass = DetachableJpaRepositoryImpl.class, basePackageClasses = RooApplication.class);
+    
+}

spring-roo/src/main/java/com/baeldung/config/WebMvcConfiguration.java

@@ -0,0 +1,13 @@
+package com.baeldung.config;
+import org.springframework.roo.addon.web.mvc.controller.annotations.config.RooWebMvcConfiguration;
+import org.springframework.roo.addon.web.mvc.thymeleaf.annotations.RooWebMvcThymeleafUIConfiguration;
+
+/**
+ * = WebMvcConfiguration
+ TODO Auto-generated class documentation
+ *
+ */
+@RooWebMvcConfiguration(defaultLanguage = "en")
+@RooWebMvcThymeleafUIConfiguration
+public class WebMvcConfiguration {
+}

spring-roo/src/main/java/com/baeldung/config/WebMvcConfiguration_Roo_ThymeleafUIConfiguration.aj

@@ -0,0 +1,110 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.config;
+
+import com.baeldung.config.WebMvcConfiguration;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.thymeleaf.ThymeleafProperties;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+import org.springframework.context.annotation.Bean;
+import org.thymeleaf.TemplateEngine;
+import org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver;
+import org.thymeleaf.spring4.view.ThymeleafViewResolver;
+import org.thymeleaf.templatemode.TemplateMode;
+
+privileged aspect WebMvcConfiguration_Roo_ThymeleafUIConfiguration {
+    
+    declare parents: WebMvcConfiguration implements ApplicationContextAware;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    @Autowired
+    private ThymeleafProperties WebMvcConfiguration.thymeleafProperties;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    @Autowired
+    private TemplateEngine WebMvcConfiguration.templateEngine;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private ApplicationContext WebMvcConfiguration.applicationContext;
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return ThymeleafProperties
+     */
+    public ThymeleafProperties WebMvcConfiguration.getThymeleafProperties() {
+        return thymeleafProperties;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return TemplateEngine
+     */
+    public TemplateEngine WebMvcConfiguration.getTemplateEngine() {
+        return templateEngine;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return ApplicationContext
+     */
+    public ApplicationContext WebMvcConfiguration.getApplicationContext() {
+        return applicationContext;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param applicationContext
+     */
+    public void WebMvcConfiguration.setApplicationContext(ApplicationContext applicationContext) {
+        this.applicationContext = applicationContext;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return ThymeleafViewResolver
+     */
+    @Bean
+    public ThymeleafViewResolver WebMvcConfiguration.javascriptThymeleafViewResolver() {
+        ThymeleafViewResolver resolver = new ThymeleafViewResolver();
+        resolver.setTemplateEngine(getTemplateEngine());
+        resolver.setCharacterEncoding("UTF-8");
+        resolver.setContentType("application/javascript");
+        resolver.setViewNames(new String[] {"*.js"});
+        resolver.setCache(getThymeleafProperties().isCache());
+        return resolver;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return SpringResourceTemplateResolver
+     */
+    @Bean
+    public SpringResourceTemplateResolver WebMvcConfiguration.javascriptTemplateResolver() {
+        SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
+        resolver.setApplicationContext(getApplicationContext());
+        resolver.setPrefix("classpath:/templates/fragments/js/");
+        resolver.setTemplateMode(TemplateMode.JAVASCRIPT);
+        resolver.setCharacterEncoding("UTF-8");
+        resolver.setCheckExistence(true);
+        resolver.setCacheable(getThymeleafProperties().isCache());
+        return resolver;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/config/WebMvcConfiguration_Roo_WebMvcConfiguration.aj

@@ -0,0 +1,72 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.config;
+
+import com.baeldung.config.WebMvcConfiguration;
+import io.tracee.binding.springmvc.TraceeInterceptor;
+import java.lang.Override;
+import java.util.Locale;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean;
+import org.springframework.web.servlet.LocaleResolver;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
+import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
+import org.springframework.web.servlet.i18n.SessionLocaleResolver;
+
+privileged aspect WebMvcConfiguration_Roo_WebMvcConfiguration {
+    
+    declare parents: WebMvcConfiguration extends WebMvcConfigurerAdapter;
+    
+    declare @type: WebMvcConfiguration: @Configuration;
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return LocalValidatorFactoryBean
+     */
+    @Primary
+    @Bean
+    public LocalValidatorFactoryBean WebMvcConfiguration.validator() {
+        return new LocalValidatorFactoryBean();
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return LocaleResolver
+     */
+    @Bean
+    public LocaleResolver WebMvcConfiguration.localeResolver() {
+        SessionLocaleResolver localeResolver = new SessionLocaleResolver();
+        localeResolver.setDefaultLocale(new Locale("en"));
+        return localeResolver;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return LocaleChangeInterceptor
+     */
+    @Bean
+    public LocaleChangeInterceptor WebMvcConfiguration.localeChangeInterceptor() {
+        LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor();
+        localeChangeInterceptor.setParamName("lang");
+        return localeChangeInterceptor;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param registry
+     */
+    @Override
+    public void WebMvcConfiguration.addInterceptors(InterceptorRegistry registry) {
+        registry.addInterceptor(localeChangeInterceptor());
+        registry.addInterceptor(new TraceeInterceptor());
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/config/jackson/DomainModelModule.java

@@ -0,0 +1,11 @@
+package com.baeldung.config.jackson;
+import org.springframework.roo.addon.web.mvc.controller.annotations.config.RooDomainModelModule;
+
+/**
+ * = DomainModelModule
+ TODO Auto-generated class documentation
+ *
+ */
+@RooDomainModelModule
+public class DomainModelModule {
+}

spring-roo/src/main/java/com/baeldung/config/jackson/DomainModelModule_Roo_DomainModelModule.aj

@@ -0,0 +1,28 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.config.jackson;
+
+import com.baeldung.config.jackson.DomainModelModule;
+import com.baeldung.domain.Book;
+import com.baeldung.web.BookJsonMixin;
+import com.fasterxml.jackson.databind.module.SimpleModule;
+import org.springframework.boot.jackson.JsonComponent;
+
+privileged aspect DomainModelModule_Roo_DomainModelModule {
+    
+    declare parents: DomainModelModule extends SimpleModule;
+    
+    declare @type: DomainModelModule: @JsonComponent;
+    
+    /**
+     * TODO Auto-generated constructor documentation
+     * 
+     */
+    public DomainModelModule.new() {
+        // Mixin registration
+        
+        setMixInAnnotation(Book.class, BookJsonMixin.class);
+    }
+
+}

spring-roo/src/main/java/com/baeldung/domain/Book.java

@@ -0,0 +1,58 @@
+package com.baeldung.domain;
+import org.springframework.roo.addon.javabean.annotations.RooEquals;
+import org.springframework.roo.addon.javabean.annotations.RooJavaBean;
+import org.springframework.roo.addon.javabean.annotations.RooToString;
+import org.springframework.roo.addon.jpa.annotations.entity.RooJpaEntity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Version;
+import javax.validation.constraints.NotNull;
+
+/**
+ * = Book
+ TODO Auto-generated class documentation
+ *
+ */
+@RooJavaBean
+@RooToString
+@RooJpaEntity
+@RooEquals(isJpaEntity = true)
+public class Book {
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @Version
+    private Integer version;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @NotNull
+    private String title;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @NotNull
+    private String author;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @NotNull
+    private String isbn;
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_Equals.aj

@@ -0,0 +1,41 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+import java.util.Objects;
+
+privileged aspect Book_Roo_Equals {
+    
+    /**
+     * This `equals` implementation is specific for JPA entities and uses 
+     * the entity identifier for it, following the article in 
+     * https://vladmihalcea.com/2016/06/06/how-to-implement-equals-and-hashcode-using-the-jpa-entity-identifier/
+     * 
+     * @param obj
+     * @return Boolean
+     */
+    public boolean Book.equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        // instanceof is false if the instance is null
+        if (!(obj instanceof Book)) {
+            return false;
+        }
+        return getId() != null && Objects.equals(getId(), ((Book) obj).getId());
+    }
+    
+    /**
+     * This `hashCode` implementation is specific for JPA entities and uses a fixed `int` value to be able 
+     * to identify the entity in collections after a new id is assigned to the entity, following the article in 
+     * https://vladmihalcea.com/2016/06/06/how-to-implement-equals-and-hashcode-using-the-jpa-entity-identifier/
+     * 
+     * @return Integer
+     */
+    public int Book.hashCode() {
+        return 31;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_JavaBean.aj

@@ -0,0 +1,100 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+
+privileged aspect Book_Roo_JavaBean {
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Long
+     */
+    public Long Book.getId() {
+        return this.id;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param id
+     */
+    public void Book.setId(Long id) {
+        this.id = id;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Integer
+     */
+    public Integer Book.getVersion() {
+        return this.version;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param version
+     */
+    public void Book.setVersion(Integer version) {
+        this.version = version;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.getTitle() {
+        return this.title;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param title
+     */
+    public void Book.setTitle(String title) {
+        this.title = title;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.getAuthor() {
+        return this.author;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param author
+     */
+    public void Book.setAuthor(String author) {
+        this.author = author;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.getIsbn() {
+        return this.isbn;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param isbn
+     */
+    public void Book.setIsbn(String isbn) {
+        this.isbn = isbn;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_Jpa_Entity.aj

@@ -0,0 +1,28 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+import io.springlets.format.EntityFormat;
+import javax.persistence.Entity;
+
+privileged aspect Book_Roo_Jpa_Entity {
+    
+    declare @type: Book: @Entity;
+    
+    declare @type: Book: @EntityFormat;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String Book.ITERABLE_TO_ADD_CANT_BE_NULL_MESSAGE = "The given Iterable of items to add can't be null!";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String Book.ITERABLE_TO_REMOVE_CANT_BE_NULL_MESSAGE = "The given Iterable of items to add can't be null!";
+    
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_ToString.aj

@@ -0,0 +1,26 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+
+privileged aspect Book_Roo_ToString {
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.toString() {
+        return "Book {" + 
+                "id='" + id + '\'' + 
+                ", version='" + version + '\'' + 
+                ", title='" + title + '\'' + 
+                ", author='" + author + '\'' + 
+                ", isbn='" + isbn + '\'' + 
+                ", ITERABLE_TO_ADD_CANT_BE_NULL_MESSAGE='" + ITERABLE_TO_ADD_CANT_BE_NULL_MESSAGE + '\'' + 
+                ", ITERABLE_TO_REMOVE_CANT_BE_NULL_MESSAGE='" + ITERABLE_TO_REMOVE_CANT_BE_NULL_MESSAGE + '\'' + "}" + super.toString();
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/repository/BookRepository.java

@@ -0,0 +1,12 @@
+package com.baeldung.repository;
+import com.baeldung.domain.Book;
+import org.springframework.roo.addon.layers.repository.jpa.annotations.RooJpaRepository;
+
+/**
+ * = BookRepository
+ TODO Auto-generated class documentation
+ *
+ */
+@RooJpaRepository(entity = Book.class)
+public interface BookRepository {
+}

spring-roo/src/main/java/com/baeldung/repository/BookRepositoryCustom.java

@@ -0,0 +1,12 @@
+package com.baeldung.repository;
+import com.baeldung.domain.Book;
+import org.springframework.roo.addon.layers.repository.jpa.annotations.RooJpaRepositoryCustom;
+
+/**
+ * = BookRepositoryCustom
+ TODO Auto-generated class documentation
+ *
+ */
+@RooJpaRepositoryCustom(entity = Book.class)
+public interface BookRepositoryCustom {
+}

spring-roo/src/main/java/com/baeldung/repository/BookRepositoryCustom_Roo_Jpa_Repository_Custom.aj

@@ -0,0 +1,23 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.repository;
+
+import com.baeldung.domain.Book;
+import com.baeldung.repository.BookRepositoryCustom;
+import io.springlets.data.domain.GlobalSearch;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
+privileged aspect BookRepositoryCustom_Roo_Jpa_Repository_Custom {
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param globalSearch
+     * @param pageable
+     * @return Page
+     */
+    public abstract Page<Book> BookRepositoryCustom.findAll(GlobalSearch globalSearch, Pageable pageable);
+    
+}

spring-roo/src/main/java/com/baeldung/repository/BookRepositoryImpl.java

@@ -0,0 +1,22 @@
+package com.baeldung.repository;
+
+import io.springlets.data.jpa.repository.support.QueryDslRepositorySupportExt;
+import org.springframework.roo.addon.layers.repository.jpa.annotations.RooJpaRepositoryCustomImpl;
+import com.baeldung.domain.Book;
+
+/**
+ * = BookRepositoryImpl
+ *
+ * TODO Auto-generated class documentation
+ *
+ */ 
+@RooJpaRepositoryCustomImpl(repository = BookRepositoryCustom.class)
+public class BookRepositoryImpl extends QueryDslRepositorySupportExt<Book> {
+
+    /**
+     * TODO Auto-generated constructor documentation
+     */
+    BookRepositoryImpl() {
+        super(Book.class);
+    }
+}

spring-roo/src/main/java/com/baeldung/repository/BookRepositoryImpl_Roo_Jpa_Repository_Impl.aj

@@ -0,0 +1,69 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.repository;
+
+import com.baeldung.domain.Book;
+import com.baeldung.domain.QBook;
+import com.baeldung.repository.BookRepositoryCustom;
+import com.baeldung.repository.BookRepositoryImpl;
+import com.querydsl.core.types.Path;
+import com.querydsl.jpa.JPQLQuery;
+import io.springlets.data.domain.GlobalSearch;
+import io.springlets.data.jpa.repository.support.QueryDslRepositorySupportExt.AttributeMappingBuilder;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.transaction.annotation.Transactional;
+
+privileged aspect BookRepositoryImpl_Roo_Jpa_Repository_Impl {
+    
+    declare parents: BookRepositoryImpl implements BookRepositoryCustom;
+    
+    declare @type: BookRepositoryImpl: @Transactional(readOnly = true);
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BookRepositoryImpl.TITLE = "title";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BookRepositoryImpl.AUTHOR = "author";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BookRepositoryImpl.ISBN = "isbn";
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param globalSearch
+     * @param pageable
+     * @return Page
+     */
+    public Page<Book> BookRepositoryImpl.findAll(GlobalSearch globalSearch, Pageable pageable) {
+        
+        QBook book = QBook.book;
+        
+        JPQLQuery<Book> query = from(book);
+        
+        Path<?>[] paths = new Path<?>[] {book.title,book.author,book.isbn};        
+        applyGlobalSearch(globalSearch, query, paths);
+        
+        AttributeMappingBuilder mapping = buildMapper()
+			.map(TITLE, book.title)
+			.map(AUTHOR, book.author)
+			.map(ISBN, book.isbn);
+        
+        applyPagination(pageable, query, mapping);
+        applyOrderById(query);
+        
+        return loadPage(query, pageable, book);
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/repository/BookRepository_Roo_Jpa_Repository.aj

@@ -0,0 +1,20 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.repository;
+
+import com.baeldung.domain.Book;
+import com.baeldung.repository.BookRepository;
+import com.baeldung.repository.BookRepositoryCustom;
+import io.springlets.data.jpa.repository.DetachableJpaRepository;
+import org.springframework.transaction.annotation.Transactional;
+
+privileged aspect BookRepository_Roo_Jpa_Repository {
+    
+    declare parents: BookRepository extends DetachableJpaRepository<Book, Long>;
+    
+    declare parents: BookRepository extends BookRepositoryCustom;
+    
+    declare @type: BookRepository: @Transactional(readOnly = true);
+    
+}

spring-roo/src/main/java/com/baeldung/service/api/BookService.java

@@ -0,0 +1,12 @@
+package com.baeldung.service.api;
+import com.baeldung.domain.Book;
+import org.springframework.roo.addon.layers.service.annotations.RooService;
+
+/**
+ * = BookService
+ TODO Auto-generated class documentation
+ *
+ */
+@RooService(entity = Book.class)
+public interface BookService {
+}

spring-roo/src/main/java/com/baeldung/service/api/BookService_Roo_Service.aj

@@ -0,0 +1,95 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.service.api;
+
+import com.baeldung.domain.Book;
+import com.baeldung.service.api.BookService;
+import io.springlets.data.domain.GlobalSearch;
+import io.springlets.format.EntityResolver;
+import java.util.List;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
+privileged aspect BookService_Roo_Service {
+    
+    declare parents: BookService extends EntityResolver<Book, Long>;
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param id
+     * @return Book
+     */
+    public abstract Book BookService.findOne(Long id);
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     */
+    public abstract void BookService.delete(Book book);
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param entities
+     * @return List
+     */
+    public abstract List<Book> BookService.save(Iterable<Book> entities);
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param ids
+     */
+    public abstract void BookService.delete(Iterable<Long> ids);
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param entity
+     * @return Book
+     */
+    public abstract Book BookService.save(Book entity);
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param id
+     * @return Book
+     */
+    public abstract Book BookService.findOneForUpdate(Long id);
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param ids
+     * @return List
+     */
+    public abstract List<Book> BookService.findAll(Iterable<Long> ids);
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return List
+     */
+    public abstract List<Book> BookService.findAll();
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Long
+     */
+    public abstract long BookService.count();
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param globalSearch
+     * @param pageable
+     * @return Page
+     */
+    public abstract Page<Book> BookService.findAll(GlobalSearch globalSearch, Pageable pageable);
+    
+}

spring-roo/src/main/java/com/baeldung/service/impl/BookServiceImpl.java

@@ -0,0 +1,12 @@
+package com.baeldung.service.impl;
+import com.baeldung.service.api.BookService;
+import org.springframework.roo.addon.layers.service.annotations.RooServiceImpl;
+
+/**
+ * = BookServiceImpl
+ TODO Auto-generated class documentation
+ *
+ */
+@RooServiceImpl(service = BookService.class)
+public class BookServiceImpl implements BookService {
+}

spring-roo/src/main/java/com/baeldung/service/impl/BookServiceImpl_Roo_Service_Impl.aj

@@ -0,0 +1,177 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.service.impl;
+
+import com.baeldung.domain.Book;
+import com.baeldung.repository.BookRepository;
+import com.baeldung.service.impl.BookServiceImpl;
+import io.springlets.data.domain.GlobalSearch;
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+privileged aspect BookServiceImpl_Roo_Service_Impl {
+    
+    declare @type: BookServiceImpl: @Service;
+    
+    declare @type: BookServiceImpl: @Transactional(readOnly = true);
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private BookRepository BookServiceImpl.bookRepository;
+    
+    /**
+     * TODO Auto-generated constructor documentation
+     * 
+     * @param bookRepository
+     */
+    @Autowired
+    public BookServiceImpl.new(BookRepository bookRepository) {
+        setBookRepository(bookRepository);
+    }
+
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return BookRepository
+     */
+    public BookRepository BookServiceImpl.getBookRepository() {
+        return bookRepository;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param bookRepository
+     */
+    public void BookServiceImpl.setBookRepository(BookRepository bookRepository) {
+        this.bookRepository = bookRepository;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     */
+    @Transactional
+    public void BookServiceImpl.delete(Book book) {
+        getBookRepository().delete(book);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param entities
+     * @return List
+     */
+    @Transactional
+    public List<Book> BookServiceImpl.save(Iterable<Book> entities) {
+        return getBookRepository().save(entities);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param ids
+     */
+    @Transactional
+    public void BookServiceImpl.delete(Iterable<Long> ids) {
+        List<Book> toDelete = getBookRepository().findAll(ids);
+        getBookRepository().deleteInBatch(toDelete);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param entity
+     * @return Book
+     */
+    @Transactional
+    public Book BookServiceImpl.save(Book entity) {
+        return getBookRepository().save(entity);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param id
+     * @return Book
+     */
+    public Book BookServiceImpl.findOne(Long id) {
+        return getBookRepository().findOne(id);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param id
+     * @return Book
+     */
+    public Book BookServiceImpl.findOneForUpdate(Long id) {
+        return getBookRepository().findOneDetached(id);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param ids
+     * @return List
+     */
+    public List<Book> BookServiceImpl.findAll(Iterable<Long> ids) {
+        return getBookRepository().findAll(ids);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return List
+     */
+    public List<Book> BookServiceImpl.findAll() {
+        return getBookRepository().findAll();
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Long
+     */
+    public long BookServiceImpl.count() {
+        return getBookRepository().count();
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param globalSearch
+     * @param pageable
+     * @return Page
+     */
+    public Page<Book> BookServiceImpl.findAll(GlobalSearch globalSearch, Pageable pageable) {
+        return getBookRepository().findAll(globalSearch, pageable);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Class
+     */
+    public Class<Book> BookServiceImpl.getEntityType() {
+        return Book.class;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Class
+     */
+    public Class<Long> BookServiceImpl.getIdType() {
+        return Long.class;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/BookDeserializer.java

@@ -0,0 +1,41 @@
+package com.baeldung.web;
+import com.baeldung.domain.Book;
+import com.baeldung.service.api.BookService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.jackson.JsonObjectDeserializer;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.core.convert.ConversionService;
+import org.springframework.roo.addon.web.mvc.controller.annotations.config.RooDeserializer;
+
+/**
+ * = BookDeserializer
+ TODO Auto-generated class documentation
+ *
+ */
+@RooDeserializer(entity = Book.class)
+public class BookDeserializer extends JsonObjectDeserializer<Book> {
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    private BookService bookService;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    private ConversionService conversionService;
+
+    /**
+     * TODO Auto-generated constructor documentation
+     *
+     * @param bookService
+     * @param conversionService
+     */
+    @Autowired
+    public BookDeserializer(@Lazy BookService bookService, ConversionService conversionService) {
+        this.bookService = bookService;
+        this.conversionService = conversionService;
+    }
+}

spring-roo/src/main/java/com/baeldung/web/BookDeserializer_Roo_EntityDeserializer.aj

@@ -0,0 +1,78 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import com.baeldung.domain.Book;
+import com.baeldung.service.api.BookService;
+import com.baeldung.web.BookDeserializer;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.ObjectCodec;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonNode;
+import io.springlets.web.NotFoundException;
+import java.io.IOException;
+import org.springframework.boot.jackson.JsonComponent;
+import org.springframework.core.convert.ConversionService;
+
+privileged aspect BookDeserializer_Roo_EntityDeserializer {
+    
+    declare @type: BookDeserializer: @JsonComponent;
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return BookService
+     */
+    public BookService BookDeserializer.getBookService() {
+        return bookService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param bookService
+     */
+    public void BookDeserializer.setBookService(BookService bookService) {
+        this.bookService = bookService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return ConversionService
+     */
+    public ConversionService BookDeserializer.getConversionService() {
+        return conversionService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param conversionService
+     */
+    public void BookDeserializer.setConversionService(ConversionService conversionService) {
+        this.conversionService = conversionService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param jsonParser
+     * @param context
+     * @param codec
+     * @param tree
+     * @return Book
+     * @throws IOException
+     */
+    public Book BookDeserializer.deserializeObject(JsonParser jsonParser, DeserializationContext context, ObjectCodec codec, JsonNode tree) throws IOException {
+        String idText = tree.asText();
+        Long id = conversionService.convert(idText, Long.class);
+        Book book = bookService.findOne(id);
+        if (book == null) {
+            throw new NotFoundException("Book not found");
+        }
+        return book;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/BookJsonMixin.java

@@ -0,0 +1,12 @@
+package com.baeldung.web;
+import com.baeldung.domain.Book;
+import org.springframework.roo.addon.web.mvc.controller.annotations.config.RooJsonMixin;
+
+/**
+ * = BookJsonMixin
+ TODO Auto-generated class documentation
+ *
+ */
+@RooJsonMixin(entity = Book.class)
+public abstract class BookJsonMixin {
+}

spring-roo/src/main/java/com/baeldung/web/BooksCollectionThymeleafController.java

@@ -0,0 +1,15 @@
+package com.baeldung.web;
+import com.baeldung.domain.Book;
+import org.springframework.roo.addon.web.mvc.controller.annotations.ControllerType;
+import org.springframework.roo.addon.web.mvc.controller.annotations.RooController;
+import org.springframework.roo.addon.web.mvc.thymeleaf.annotations.RooThymeleaf;
+
+/**
+ * = BooksCollectionThymeleafController
+ TODO Auto-generated class documentation
+ *
+ */
+@RooController(entity = Book.class, type = ControllerType.COLLECTION)
+@RooThymeleaf
+public class BooksCollectionThymeleafController {
+}

spring-roo/src/main/java/com/baeldung/web/BooksCollectionThymeleafController_Roo_Controller.aj

@@ -0,0 +1,35 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import com.baeldung.service.api.BookService;
+import com.baeldung.web.BooksCollectionThymeleafController;
+
+privileged aspect BooksCollectionThymeleafController_Roo_Controller {
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private BookService BooksCollectionThymeleafController.bookService;
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return BookService
+     */
+    public BookService BooksCollectionThymeleafController.getBookService() {
+        return bookService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param bookService
+     */
+    public void BooksCollectionThymeleafController.setBookService(BookService bookService) {
+        this.bookService = bookService;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/BooksCollectionThymeleafController_Roo_Thymeleaf.aj

@@ -0,0 +1,470 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import ar.com.fdvs.dj.core.DynamicJasperHelper;
+import ar.com.fdvs.dj.core.layout.ClassicLayoutManager;
+import ar.com.fdvs.dj.domain.builders.ColumnBuilderException;
+import ar.com.fdvs.dj.domain.builders.FastReportBuilder;
+import com.baeldung.domain.Book;
+import com.baeldung.service.api.BookService;
+import com.baeldung.web.BooksCollectionThymeleafController;
+import com.baeldung.web.BooksItemThymeleafController;
+import com.baeldung.web.BooksItemThymeleafLinkFactory;
+import com.baeldung.web.reports.ExportingErrorException;
+import com.baeldung.web.reports.JasperReportsCsvExporter;
+import com.baeldung.web.reports.JasperReportsExporter;
+import com.baeldung.web.reports.JasperReportsPdfExporter;
+import com.baeldung.web.reports.JasperReportsXlsExporter;
+import io.springlets.data.domain.GlobalSearch;
+import io.springlets.data.web.datatables.ConvertedDatatablesData;
+import io.springlets.data.web.datatables.Datatables;
+import io.springlets.data.web.datatables.DatatablesColumns;
+import io.springlets.data.web.datatables.DatatablesPageable;
+import io.springlets.data.web.select2.Select2DataSupport;
+import io.springlets.data.web.select2.Select2DataWithConversion;
+import io.springlets.web.mvc.util.ControllerMethodLinkBuilderFactory;
+import io.springlets.web.mvc.util.MethodLinkBuilderFactory;
+import java.io.IOException;
+import java.util.Collection;
+import java.util.Locale;
+import javax.servlet.http.HttpServletResponse;
+import javax.validation.Valid;
+import net.sf.jasperreports.engine.JRDataSource;
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JasperPrint;
+import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.MessageSource;
+import org.springframework.context.i18n.LocaleContextHolder;
+import org.springframework.core.convert.ConversionService;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.web.PageableDefault;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.WebDataBinder;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.InitBinder;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.servlet.ModelAndView;
+import org.springframework.web.util.UriComponents;
+
+privileged aspect BooksCollectionThymeleafController_Roo_Thymeleaf {
+    
+    declare @type: BooksCollectionThymeleafController: @Controller;
+    
+    declare @type: BooksCollectionThymeleafController: @RequestMapping(value = "/books", name = "BooksCollectionThymeleafController", produces = MediaType.TEXT_HTML_VALUE);
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private MessageSource BooksCollectionThymeleafController.messageSource;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private MethodLinkBuilderFactory<BooksItemThymeleafController> BooksCollectionThymeleafController.itemLink;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private ConversionService BooksCollectionThymeleafController.conversionService;
+    
+    /**
+     * TODO Auto-generated constructor documentation
+     * 
+     * @param bookService
+     * @param conversionService
+     * @param messageSource
+     * @param linkBuilder
+     */
+    @Autowired
+    public BooksCollectionThymeleafController.new(BookService bookService, ConversionService conversionService, MessageSource messageSource, ControllerMethodLinkBuilderFactory linkBuilder) {
+        setBookService(bookService);
+        setConversionService(conversionService);
+        setMessageSource(messageSource);
+        setItemLink(linkBuilder.of(BooksItemThymeleafController.class));
+    }
+
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return MessageSource
+     */
+    public MessageSource BooksCollectionThymeleafController.getMessageSource() {
+        return messageSource;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param messageSource
+     */
+    public void BooksCollectionThymeleafController.setMessageSource(MessageSource messageSource) {
+        this.messageSource = messageSource;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return MethodLinkBuilderFactory
+     */
+    public MethodLinkBuilderFactory<BooksItemThymeleafController> BooksCollectionThymeleafController.getItemLink() {
+        return itemLink;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param itemLink
+     */
+    public void BooksCollectionThymeleafController.setItemLink(MethodLinkBuilderFactory<BooksItemThymeleafController> itemLink) {
+        this.itemLink = itemLink;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return ConversionService
+     */
+    public ConversionService BooksCollectionThymeleafController.getConversionService() {
+        return conversionService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param conversionService
+     */
+    public void BooksCollectionThymeleafController.setConversionService(ConversionService conversionService) {
+        this.conversionService = conversionService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     * @return ModelAndView
+     */
+    @GetMapping(name = "list")
+    public ModelAndView BooksCollectionThymeleafController.list(Model model) {
+        return new ModelAndView("/books/list");
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param datatablesColumns
+     * @param search
+     * @param pageable
+     * @param draw
+     * @return ResponseEntity
+     */
+    @GetMapping(produces = Datatables.MEDIA_TYPE, name = "datatables", value = "/dt")
+    @ResponseBody
+    public ResponseEntity<ConvertedDatatablesData<Book>> BooksCollectionThymeleafController.datatables(DatatablesColumns datatablesColumns, GlobalSearch search, DatatablesPageable pageable, @RequestParam("draw") Integer draw) {
+        Page<Book> books = getBookService().findAll(search, pageable);
+        long totalBooksCount = books.getTotalElements();
+        if (search != null && StringUtils.isNotBlank(search.getText())) {
+            totalBooksCount = getBookService().count();
+        }
+        ConvertedDatatablesData<Book> datatablesData = new ConvertedDatatablesData<Book>(books, totalBooksCount, draw, getConversionService(), datatablesColumns);
+        return ResponseEntity.ok(datatablesData);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param search
+     * @param pageable
+     * @param locale
+     * @return ResponseEntity
+     */
+    @GetMapping(produces = MediaType.APPLICATION_JSON_VALUE, name = "select2", value = "/s2")
+    @ResponseBody
+    public ResponseEntity<Select2DataSupport<Book>> BooksCollectionThymeleafController.select2(GlobalSearch search, Pageable pageable, Locale locale) {
+        Page<Book> books = getBookService().findAll(search, pageable);
+        String idExpression = "#{id}";
+        Select2DataSupport<Book> select2Data = new Select2DataWithConversion<Book>(books, idExpression, getConversionService());
+        return ResponseEntity.ok(select2Data);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param dataBinder
+     */
+    @InitBinder("book")
+    public void BooksCollectionThymeleafController.initBookBinder(WebDataBinder dataBinder) {
+        dataBinder.setDisallowedFields("id");
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     */
+    public void BooksCollectionThymeleafController.populateFormats(Model model) {
+        model.addAttribute("application_locale", LocaleContextHolder.getLocale().getLanguage());
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     */
+    public void BooksCollectionThymeleafController.populateForm(Model model) {
+        populateFormats(model);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     * @param result
+     * @param model
+     * @return ModelAndView
+     */
+    @PostMapping(name = "create")
+    public ModelAndView BooksCollectionThymeleafController.create(@Valid @ModelAttribute Book book, BindingResult result, Model model) {
+        if (result.hasErrors()) {
+            populateForm(model);
+            
+            return new ModelAndView("/books/create");
+        }
+        Book newBook = getBookService().save(book);
+        UriComponents showURI = getItemLink().to(BooksItemThymeleafLinkFactory.SHOW).with("book", newBook.getId()).toUri();
+        return new ModelAndView("redirect:" + showURI.toUriString());
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     * @return ModelAndView
+     */
+    @GetMapping(value = "/create-form", name = "createForm")
+    public ModelAndView BooksCollectionThymeleafController.createForm(Model model) {
+        populateForm(model);
+        
+        model.addAttribute("book", new Book());
+        return new ModelAndView("books/create");
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param ids
+     * @return ResponseEntity
+     */
+    @DeleteMapping(value = "/batch/{ids}", name = "deleteBatch")
+    @ResponseBody
+    public ResponseEntity<?> BooksCollectionThymeleafController.deleteBatch(@PathVariable("ids") Collection<Long> ids) {
+        
+        getBookService().delete(ids);
+        
+        return ResponseEntity.ok().build();
+    }
+    
+    /**
+     * Method that obtains the filtered and ordered records using the Datatables information and 
+     * export them to a new report file. (It ignores the current pagination).
+     * 
+     * To generate the report file it uses the `DynamicJasper` library
+     * (http://dynamicjasper.com). This library allows developers to generate reports dynamically
+     * without use an specific template to each entity.
+     * 
+     * To customize the appearance of ALL generated reports, you could customize the 
+     * "export_default.jrxml" template located in "src/main/resources/templates/reports/". However,
+     * if you want to customize the appearance of this specific report, you could create a new
+     * ".jrxml" file and provide it to the library replacing the `builder.setTemplateFile();`
+     * operation used in this implementation.
+     * 
+     * @param search GlobalSearch that contains the filter provided by the Datatables component.
+     * @param pageable Pageable that contains the Sort info provided by the Datatabes component.
+     * @param datatablesColumns Columns displayed in the Datatables component.
+     * @param response The HttpServletResponse.
+     * @param exporter An specific JasperReportsExporter to be used during export process.
+     * @param fileName The final filename to use.
+     * @param locale The current Locale in the view context.
+     */
+    public void BooksCollectionThymeleafController.export(GlobalSearch search, @PageableDefault(size = 2147483647) Pageable pageable, String[] datatablesColumns, HttpServletResponse response, JasperReportsExporter exporter, String fileName, Locale locale) {
+        // Obtain the filtered and ordered elements
+        Page<Book> books = getBookService().findAll(search, pageable);
+        
+        // Prevent generation of reports with empty data
+        if (books == null || books.getContent().isEmpty()) {
+            return;
+        }
+        
+        // Creates a new ReportBuilder using DynamicJasper library
+        FastReportBuilder builder = new FastReportBuilder();
+        
+        // IMPORTANT: By default, this application uses "export_default.jrxml"
+        // to generate all reports. If you want to customize this specific report,
+        // create a new ".jrxml" template and customize it. (Take in account the 
+        // DynamicJasper restrictions: 
+        // http://dynamicjasper.com/2010/10/06/how-to-use-custom-jrxml-templates/)
+        builder.setTemplateFile("templates/reports/export_default.jrxml");
+        
+        // The generated report will display the same columns as the Datatables component.
+        // However, this is not mandatory. You could edit this code if you want to ignore
+        // the provided datatablesColumns
+        if (datatablesColumns != null) {
+            for (String column : datatablesColumns) {
+                // Delegates in addColumnToReportBuilder to include each datatables column
+                // to the report builder
+                addColumnToReportBuilder(column, builder, locale, fileName);
+            }
+        }
+        
+        // This property resizes the columns to use full width page.
+        // Set false value if you want to use the specific width of each column.
+        builder.setUseFullPageWidth(true);
+        
+        // Creates a new Jasper Reports Datasource using the obtained elements
+        JRDataSource ds = new JRBeanCollectionDataSource(books.getContent());
+        
+        // Generates the JasperReport
+        JasperPrint jp;
+        try {
+            jp = DynamicJasperHelper.generateJasperPrint(builder.build(), new ClassicLayoutManager(), ds);
+        }
+        catch (JRException e) {
+            String errorMessage = getMessageSource().getMessage("error_exportingErrorException", 
+                new Object[] {StringUtils.substringAfterLast(fileName, ".").toUpperCase()}, 
+                String.format("Error while exporting data to StringUtils file", StringUtils.
+                    substringAfterLast(fileName, ".").toUpperCase()), locale);
+            throw new ExportingErrorException(errorMessage);
+        }
+        
+        // Converts the JaspertReport element to a ByteArrayOutputStream and
+        // write it into the response stream using the provided JasperReportExporter
+        try {
+            exporter.export(jp, fileName, response);
+        }
+        catch (JRException e) {
+            String errorMessage = getMessageSource().getMessage("error_exportingErrorException", 
+                new Object[] {StringUtils.substringAfterLast(fileName, ".").toUpperCase()}, 
+                String.format("Error while exporting data to StringUtils file", StringUtils.
+                    substringAfterLast(fileName, ".").toUpperCase()), locale);
+            throw new ExportingErrorException(errorMessage);
+        }
+        catch (IOException e) {
+            String errorMessage = getMessageSource().getMessage("error_exportingErrorException", 
+                new Object[] {StringUtils.substringAfterLast(fileName, ".").toUpperCase()}, 
+                String.format("Error while exporting data to StringUtils file", StringUtils.
+                    substringAfterLast(fileName, ".").toUpperCase()), locale);
+            throw new ExportingErrorException(errorMessage);
+        }
+    }
+    
+    /**
+     * It delegates in the `export` method providing the necessary information
+     * to generate a CSV report.
+     * 
+     * @param search The GlobalSearch that contains the filter provided by the Datatables component
+     * @param pageable The Pageable that contains the Sort info provided by the Datatabes component
+     * @param datatablesColumns The Columns displayed in the Datatables component
+     * @param response The HttpServletResponse
+     * @return ResponseEntity
+     */
+    @GetMapping(name = "exportCsv", value = "/export/csv")
+    @ResponseBody
+    public ResponseEntity<?> BooksCollectionThymeleafController.exportCsv(GlobalSearch search, @PageableDefault(size = 2147483647) Pageable pageable, @RequestParam("datatablesColumns") String[] datatablesColumns, HttpServletResponse response, Locale locale) {
+        export(search, pageable, datatablesColumns, response, new JasperReportsCsvExporter(), "books_report.csv", locale);
+        return ResponseEntity.ok().build();
+    }
+    
+    /**
+     * It delegates in the `export` method providing the necessary information
+     * to generate a PDF report.
+     * 
+     * @param search The GlobalSearch that contains the filter provided by the Datatables component
+     * @param pageable The Pageable that contains the Sort info provided by the Datatabes component
+     * @param datatablesColumns The Columns displayed in the Datatables component
+     * @param response The HttpServletResponse
+     * @return ResponseEntity
+     */
+    @GetMapping(name = "exportPdf", value = "/export/pdf")
+    @ResponseBody
+    public ResponseEntity<?> BooksCollectionThymeleafController.exportPdf(GlobalSearch search, @PageableDefault(size = 2147483647) Pageable pageable, @RequestParam("datatablesColumns") String[] datatablesColumns, HttpServletResponse response, Locale locale) {
+        export(search, pageable, datatablesColumns, response, new JasperReportsPdfExporter(), "books_report.pdf", locale);
+        return ResponseEntity.ok().build();
+    }
+    
+    /**
+     * It delegates in the `export` method providing the necessary information
+     * to generate a XLS report.
+     * 
+     * @param search The GlobalSearch that contains the filter provided by the Datatables component
+     * @param pageable The Pageable that contains the Sort info provided by the Datatabes component
+     * @param datatablesColumns The Columns displayed in the Datatables component
+     * @param response The HttpServletResponse
+     * @return ResponseEntity
+     */
+    @GetMapping(name = "exportXls", value = "/export/xls")
+    @ResponseBody
+    public ResponseEntity<?> BooksCollectionThymeleafController.exportXls(GlobalSearch search, @PageableDefault(size = 2147483647) Pageable pageable, @RequestParam("datatablesColumns") String[] datatablesColumns, HttpServletResponse response, Locale locale) {
+        export(search, pageable, datatablesColumns, response, new JasperReportsXlsExporter(), "books_report.xls", locale);
+        return ResponseEntity.ok().build();
+    }
+    
+    /**
+     * This method contains all the entity fields that are able to be displayed in a 
+     * report. The developer could add a new column to the report builder providing the 
+     * field name and the builder where the new field will be added as column.
+     * 
+     * @param columnName the field name to show as column
+     * @param builder The builder where the new field will be added as column.
+     */
+    public void BooksCollectionThymeleafController.addColumnToReportBuilder(String columnName, FastReportBuilder builder, Locale locale, String fileName) {
+        try {
+        if (columnName.equals("id")) {
+            builder.addColumn(getMessageSource().getMessage("label_book_id", null, "Id", locale), "id", Long.class.getName(), 50);
+        }
+        else if (columnName.equals("version")) {
+            builder.addColumn(getMessageSource().getMessage("label_book_version", null, "Version", locale), "version", Integer.class.getName(), 100);
+        }
+        else if (columnName.equals("title")) {
+            builder.addColumn(getMessageSource().getMessage("label_book_title", null, "Title", locale), "title", String.class.getName(), 100);
+        }
+        else if (columnName.equals("author")) {
+            builder.addColumn(getMessageSource().getMessage("label_book_author", null, "Author", locale), "author", String.class.getName(), 100);
+        }
+        else if (columnName.equals("isbn")) {
+            builder.addColumn(getMessageSource().getMessage("label_book_isbn", null, "Isbn", locale), "isbn", String.class.getName(), 100);
+        }
+        }
+        catch (ColumnBuilderException e) {
+            String errorMessage = getMessageSource().getMessage("error_exportingErrorException", 
+                new Object[] {StringUtils.substringAfterLast(fileName, ".").toUpperCase()}, 
+                String.format("Error while exporting data to StringUtils file", StringUtils.
+                    substringAfterLast(fileName, ".").toUpperCase()), locale);
+            throw new ExportingErrorException(errorMessage);
+        }
+        catch (ClassNotFoundException e) {
+            String errorMessage = getMessageSource().getMessage("error_exportingErrorException", 
+                new Object[] {StringUtils.substringAfterLast(fileName, ".").toUpperCase()}, 
+                String.format("Error while exporting data to StringUtils file", StringUtils.
+                    substringAfterLast(fileName, ".").toUpperCase()), locale);
+            throw new ExportingErrorException(errorMessage);
+        }
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/BooksCollectionThymeleafLinkFactory.java

@@ -0,0 +1,11 @@
+package com.baeldung.web;
+import org.springframework.roo.addon.web.mvc.thymeleaf.annotations.RooLinkFactory;
+
+/**
+ * = BooksCollectionThymeleafLinkFactory
+ TODO Auto-generated class documentation
+ *
+ */
+@RooLinkFactory(controller = BooksCollectionThymeleafController.class)
+public class BooksCollectionThymeleafLinkFactory {
+}

spring-roo/src/main/java/com/baeldung/web/BooksCollectionThymeleafLinkFactory_Roo_LinkFactory.aj

@@ -0,0 +1,122 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import com.baeldung.web.BooksCollectionThymeleafController;
+import com.baeldung.web.BooksCollectionThymeleafLinkFactory;
+import io.springlets.web.mvc.util.MethodLinkFactory;
+import io.springlets.web.mvc.util.SpringletsMvcUriComponentsBuilder;
+import java.util.Map;
+import org.springframework.stereotype.Component;
+import org.springframework.web.util.UriComponents;
+
+privileged aspect BooksCollectionThymeleafLinkFactory_Roo_LinkFactory {
+    
+    declare parents: BooksCollectionThymeleafLinkFactory implements MethodLinkFactory<BooksCollectionThymeleafController>;
+    
+    declare @type: BooksCollectionThymeleafLinkFactory: @Component;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.LIST = "list";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.DATATABLES = "datatables";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.SELECT2 = "select2";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.CREATE = "create";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.CREATEFORM = "createForm";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.DELETEBATCH = "deleteBatch";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.EXPORTCSV = "exportCsv";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.EXPORTPDF = "exportPdf";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksCollectionThymeleafLinkFactory.EXPORTXLS = "exportXls";
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Class
+     */
+    public Class<BooksCollectionThymeleafController> BooksCollectionThymeleafLinkFactory.getControllerClass() {
+        return BooksCollectionThymeleafController.class;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param methodName
+     * @param parameters
+     * @param pathVariables
+     * @return UriComponents
+     */
+    public UriComponents BooksCollectionThymeleafLinkFactory.toUri(String methodName, Object[] parameters, Map<String, Object> pathVariables) {
+        if (methodName.equals(LIST)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).list(null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(DATATABLES)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).datatables(null, null, null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(SELECT2)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).select2(null, null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(CREATE)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).create(null, null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(CREATEFORM)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).createForm(null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(DELETEBATCH)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).deleteBatch(null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(EXPORTCSV)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).exportCsv(null, null, null, null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(EXPORTPDF)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).exportPdf(null, null, null, null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(EXPORTXLS)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).exportXls(null, null, null, null, null)).buildAndExpand(pathVariables);
+        }
+        throw new IllegalArgumentException("Invalid method name: " + methodName);
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/BooksItemThymeleafController.java

@@ -0,0 +1,15 @@
+package com.baeldung.web;
+import com.baeldung.domain.Book;
+import org.springframework.roo.addon.web.mvc.controller.annotations.ControllerType;
+import org.springframework.roo.addon.web.mvc.controller.annotations.RooController;
+import org.springframework.roo.addon.web.mvc.thymeleaf.annotations.RooThymeleaf;
+
+/**
+ * = BooksItemThymeleafController
+ TODO Auto-generated class documentation
+ *
+ */
+@RooController(entity = Book.class, type = ControllerType.ITEM)
+@RooThymeleaf
+public class BooksItemThymeleafController {
+}

spring-roo/src/main/java/com/baeldung/web/BooksItemThymeleafController_Roo_Controller.aj

@@ -0,0 +1,35 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import com.baeldung.service.api.BookService;
+import com.baeldung.web.BooksItemThymeleafController;
+
+privileged aspect BooksItemThymeleafController_Roo_Controller {
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private BookService BooksItemThymeleafController.bookService;
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return BookService
+     */
+    public BookService BooksItemThymeleafController.getBookService() {
+        return bookService;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param bookService
+     */
+    public void BooksItemThymeleafController.setBookService(BookService bookService) {
+        this.bookService = bookService;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/BooksItemThymeleafController_Roo_Thymeleaf.aj

@@ -0,0 +1,251 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import com.baeldung.domain.Book;
+import com.baeldung.service.api.BookService;
+import com.baeldung.web.BooksItemThymeleafController;
+import com.baeldung.web.BooksItemThymeleafLinkFactory;
+import io.springlets.web.NotFoundException;
+import io.springlets.web.mvc.util.ControllerMethodLinkBuilderFactory;
+import io.springlets.web.mvc.util.MethodLinkBuilderFactory;
+import java.util.Locale;
+import javax.validation.Valid;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.MessageSource;
+import org.springframework.context.i18n.LocaleContextHolder;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.WebDataBinder;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.InitBinder;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.servlet.ModelAndView;
+import org.springframework.web.util.UriComponents;
+
+privileged aspect BooksItemThymeleafController_Roo_Thymeleaf {
+    
+    declare @type: BooksItemThymeleafController: @Controller;
+    
+    declare @type: BooksItemThymeleafController: @RequestMapping(value = "/books/{book}", name = "BooksItemThymeleafController", produces = MediaType.TEXT_HTML_VALUE);
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private MessageSource BooksItemThymeleafController.messageSource;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    private MethodLinkBuilderFactory<BooksItemThymeleafController> BooksItemThymeleafController.itemLink;
+    
+    /**
+     * TODO Auto-generated constructor documentation
+     * 
+     * @param bookService
+     * @param messageSource
+     * @param linkBuilder
+     */
+    @Autowired
+    public BooksItemThymeleafController.new(BookService bookService, MessageSource messageSource, ControllerMethodLinkBuilderFactory linkBuilder) {
+        setBookService(bookService);
+        setMessageSource(messageSource);
+        setItemLink(linkBuilder.of(BooksItemThymeleafController.class));
+    }
+
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return MessageSource
+     */
+    public MessageSource BooksItemThymeleafController.getMessageSource() {
+        return messageSource;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param messageSource
+     */
+    public void BooksItemThymeleafController.setMessageSource(MessageSource messageSource) {
+        this.messageSource = messageSource;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return MethodLinkBuilderFactory
+     */
+    public MethodLinkBuilderFactory<BooksItemThymeleafController> BooksItemThymeleafController.getItemLink() {
+        return itemLink;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param itemLink
+     */
+    public void BooksItemThymeleafController.setItemLink(MethodLinkBuilderFactory<BooksItemThymeleafController> itemLink) {
+        this.itemLink = itemLink;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param id
+     * @param locale
+     * @param method
+     * @return Book
+     */
+    @ModelAttribute
+    public Book BooksItemThymeleafController.getBook(@PathVariable("book") Long id, Locale locale, HttpMethod method) {
+        Book book = null;
+        if (HttpMethod.PUT.equals(method)) {
+            book = bookService.findOneForUpdate(id);
+        } else {
+            book = bookService.findOne(id);
+        }
+        
+        if (book == null) {
+            String message = messageSource.getMessage("error_NotFound", new Object[] {"Book", id}, "The record couldn't be found", locale);
+            throw new NotFoundException(message);
+        }
+        return book;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     * @param model
+     * @return ModelAndView
+     */
+    @GetMapping(name = "show")
+    public ModelAndView BooksItemThymeleafController.show(@ModelAttribute Book book, Model model) {
+        model.addAttribute("book", book);
+        return new ModelAndView("books/show");
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     * @param model
+     * @return ModelAndView
+     */
+    @GetMapping(value = "/inline", name = "showInline")
+    public ModelAndView BooksItemThymeleafController.showInline(@ModelAttribute Book book, Model model) {
+        model.addAttribute("book", book);
+        return new ModelAndView("books/showInline :: inline-content");
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param dataBinder
+     */
+    @InitBinder("book")
+    public void BooksItemThymeleafController.initBookBinder(WebDataBinder dataBinder) {
+        dataBinder.setDisallowedFields("id");
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     */
+    public void BooksItemThymeleafController.populateFormats(Model model) {
+        model.addAttribute("application_locale", LocaleContextHolder.getLocale().getLanguage());
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     */
+    public void BooksItemThymeleafController.populateForm(Model model) {
+        populateFormats(model);
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     * @param model
+     * @return ModelAndView
+     */
+    @GetMapping(value = "/edit-form", name = "editForm")
+    public ModelAndView BooksItemThymeleafController.editForm(@ModelAttribute Book book, Model model) {
+        populateForm(model);
+        
+        model.addAttribute("book", book);
+        return new ModelAndView("books/edit");
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     * @param version
+     * @param concurrencyControl
+     * @param result
+     * @param model
+     * @return ModelAndView
+     */
+    @PutMapping(name = "update")
+    public ModelAndView BooksItemThymeleafController.update(@Valid @ModelAttribute Book book, @RequestParam("version") Integer version, @RequestParam(value = "concurrency", required = false, defaultValue = "") String concurrencyControl, BindingResult result, Model model) {
+        // Check if provided form contain errors
+        if (result.hasErrors()) {
+            populateForm(model);
+            
+            return new ModelAndView("books/edit");
+        }
+        // Concurrency control
+        Book existingBook = getBookService().findOne(book.getId());
+        if(book.getVersion() != existingBook.getVersion() && StringUtils.isEmpty(concurrencyControl)){
+            populateForm(model);
+            model.addAttribute("book", book);
+            model.addAttribute("concurrency", true);
+            return new ModelAndView("books/edit");
+        } else if(book.getVersion() != existingBook.getVersion() && "discard".equals(concurrencyControl)){
+            populateForm(model);
+            model.addAttribute("book", existingBook);
+            model.addAttribute("concurrency", false);
+            return new ModelAndView("books/edit");
+        } else if(book.getVersion() != existingBook.getVersion() && "apply".equals(concurrencyControl)){
+            // Update the version field to be able to override the existing values
+            book.setVersion(existingBook.getVersion());
+        }
+        Book savedBook = getBookService().save(book);
+        UriComponents showURI = getItemLink().to(BooksItemThymeleafLinkFactory.SHOW).with("book", savedBook.getId()).toUri();
+        return new ModelAndView("redirect:" + showURI.toUriString());
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param book
+     * @return ResponseEntity
+     */
+    @ResponseBody
+    @DeleteMapping(name = "delete")
+    public ResponseEntity<?> BooksItemThymeleafController.delete(@ModelAttribute Book book) {
+        getBookService().delete(book);
+        return ResponseEntity.ok().build();
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/BooksItemThymeleafLinkFactory.java

@@ -0,0 +1,11 @@
+package com.baeldung.web;
+import org.springframework.roo.addon.web.mvc.thymeleaf.annotations.RooLinkFactory;
+
+/**
+ * = BooksItemThymeleafLinkFactory
+ TODO Auto-generated class documentation
+ *
+ */
+@RooLinkFactory(controller = BooksItemThymeleafController.class)
+public class BooksItemThymeleafLinkFactory {
+}

spring-roo/src/main/java/com/baeldung/web/BooksItemThymeleafLinkFactory_Roo_LinkFactory.aj

@@ -0,0 +1,86 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import com.baeldung.web.BooksItemThymeleafController;
+import com.baeldung.web.BooksItemThymeleafLinkFactory;
+import io.springlets.web.mvc.util.MethodLinkFactory;
+import io.springlets.web.mvc.util.SpringletsMvcUriComponentsBuilder;
+import java.util.Map;
+import org.springframework.stereotype.Component;
+import org.springframework.web.util.UriComponents;
+
+privileged aspect BooksItemThymeleafLinkFactory_Roo_LinkFactory {
+    
+    declare parents: BooksItemThymeleafLinkFactory implements MethodLinkFactory<BooksItemThymeleafController>;
+    
+    declare @type: BooksItemThymeleafLinkFactory: @Component;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksItemThymeleafLinkFactory.SHOW = "show";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksItemThymeleafLinkFactory.SHOWINLINE = "showInline";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksItemThymeleafLinkFactory.EDITFORM = "editForm";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksItemThymeleafLinkFactory.UPDATE = "update";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String BooksItemThymeleafLinkFactory.DELETE = "delete";
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Class
+     */
+    public Class<BooksItemThymeleafController> BooksItemThymeleafLinkFactory.getControllerClass() {
+        return BooksItemThymeleafController.class;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param methodName
+     * @param parameters
+     * @param pathVariables
+     * @return UriComponents
+     */
+    public UriComponents BooksItemThymeleafLinkFactory.toUri(String methodName, Object[] parameters, Map<String, Object> pathVariables) {
+        if (methodName.equals(SHOW)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).show(null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(SHOWINLINE)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).showInline(null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(EDITFORM)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).editForm(null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(UPDATE)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).update(null, null, null, null, null)).buildAndExpand(pathVariables);
+        }
+        if (methodName.equals(DELETE)) {
+            return SpringletsMvcUriComponentsBuilder.fromMethodCall(SpringletsMvcUriComponentsBuilder.on(getControllerClass()).delete(null)).buildAndExpand(pathVariables);
+        }
+        throw new IllegalArgumentException("Invalid method name: " + methodName);
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/MainController.java

@@ -0,0 +1,11 @@
+package com.baeldung.web;
+import org.springframework.roo.addon.web.mvc.thymeleaf.annotations.RooThymeleafMainController;
+
+/**
+ * = MainController
+ TODO Auto-generated class documentation
+ *
+ */
+@RooThymeleafMainController
+public class MainController {
+}

spring-roo/src/main/java/com/baeldung/web/MainController_Roo_Thymeleaf_MainController.aj

@@ -0,0 +1,59 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.web;
+
+import com.baeldung.web.MainController;
+import io.springlets.web.NotFoundException;
+import org.springframework.context.i18n.LocaleContextHolder;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.util.StringUtils;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+privileged aspect MainController_Roo_Thymeleaf_MainController {
+    
+    declare @type: MainController: @Controller;
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     * @return String
+     */
+    @GetMapping("/")
+    public String MainController.index(Model model) {
+        model.addAttribute("application_locale", LocaleContextHolder.getLocale().getLanguage());
+        return "index";
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param model
+     * @return String
+     */
+    @GetMapping("/accessibility")
+    public String MainController.accessibility(Model model) {
+        model.addAttribute("application_locale", LocaleContextHolder.getLocale().getLanguage());
+        return "accessibility";
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param template
+     * @return String
+     */
+    @RequestMapping(value = "/js/{template}.js", method = RequestMethod.GET)
+    public String MainController.javascriptTemplates(@PathVariable("template") String template) {
+        if (StringUtils.hasLength(template)) {
+            return template.concat(".js");
+        }
+        throw new NotFoundException("File not found");
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/web/reports/ExportingErrorException.java

@@ -0,0 +1,19 @@
+package com.baeldung.web.reports;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
+public class ExportingErrorException extends RuntimeException {
+
+  private static final long serialVersionUID = 4075788919321977605L;
+
+  public ExportingErrorException() {
+    super("Error while trying to export data to file.");
+  }
+
+  public ExportingErrorException(String message) {
+    super(message);
+  }
+
+}

spring-roo/src/main/java/com/baeldung/web/reports/JasperReportsCsvExporter.java

@@ -0,0 +1,71 @@
+package com.baeldung.web.reports;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import javax.servlet.ServletOutputStream;
+import javax.servlet.http.HttpServletResponse;
+
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JRExporterParameter;
+import net.sf.jasperreports.engine.JasperPrint;
+import net.sf.jasperreports.engine.export.JRCsvExporter;
+
+/**
+ * = JasperReportsCsvExporter
+ * 
+ * A JasperReports exporter to export the report in CSV formats. This class
+ * implements the interface {@link JasperReportsExporter}
+ */
+public class JasperReportsCsvExporter implements JasperReportsExporter {
+
+	/**
+	 * Generates a ByteArrayOutputStream from the provided JasperReport using
+	 * the {@link JRCsvExporter}. After that, the generated bytes array is
+	 * written in the {@link HttpServletResponse}
+	 * 
+	 * @param jp
+	 *            The generated JasperReport.
+	 * @param fileName
+	 *            The fileName of the exported JasperReport
+	 * @param response
+	 *            The HttpServletResponse where generated report has been
+	 *            written
+	 * @throws JRException
+	 *             during JasperReport export.
+	 * @throws IOException
+	 *             when writes the ByteArrayOutputStream into the
+	 *             HttpServletResponse
+	 */
+	@Override
+	public void export(JasperPrint jp, String fileName, HttpServletResponse response) throws JRException, IOException {
+
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+		// Create a JRCsvExporter instance
+		JRCsvExporter exporter = new JRCsvExporter();
+
+		// Here we assign the parameters jp and baos to the exporter
+		exporter.setParameter(JRExporterParameter.JASPER_PRINT, jp);
+		exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
+
+		// Retrieve the exported report in PDF format
+		exporter.exportReport();
+
+		// Specifies the response header
+		response.setHeader("Content-Disposition", "inline; filename=" + fileName);
+
+		// Make sure to set the correct content type
+		// Each format has its own content type
+		response.setContentType("text/csv");
+		response.setContentLength(baos.size());
+
+		// Retrieve the output stream
+		ServletOutputStream outputStream = response.getOutputStream();
+		// Write to the output stream
+		baos.writeTo(outputStream);
+		// Flush the stream
+		outputStream.flush();
+
+	}
+}

spring-roo/src/main/java/com/baeldung/web/reports/JasperReportsExporter.java

@@ -0,0 +1,41 @@
+package com.baeldung.web.reports;
+
+import java.io.IOException;
+
+import javax.servlet.http.HttpServletResponse;
+
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JasperPrint;
+import net.sf.jasperreports.export.Exporter;
+
+/**
+ * = JasperReportsExporter
+ * 
+ * This interface defines the operations for a JasperReport exporter.
+ * 
+ * JasperReports library already provides an Exporter interface called
+ * {@link Exporter}. However, it doesn't provides an operation that writes the
+ * exported JasperReport into the {@link HttpServletResponse}.
+ */
+public interface JasperReportsExporter {
+
+	/**
+	 * This operation must be implemented by every JasperReport exporter to be
+	 * able to write a generated report into a the {@link HttpServletResponse}}.
+	 * 
+	 * @param jp
+	 *            The generated JasperReport.
+	 * @param fileName
+	 *            The fileName of the exported JasperReport
+	 * @param response
+	 *            The HttpServletResponse where generated report has been
+	 *            written
+	 * @throws JRException
+	 *             during JasperReport export.
+	 * @throws IOException
+	 *             when writes the ByteArrayOutputStream into the
+	 *             HttpServletResponse
+	 */
+	public void export(JasperPrint jp, String fileName, HttpServletResponse response) throws JRException, IOException;
+
+}

spring-roo/src/main/java/com/baeldung/web/reports/JasperReportsPdfExporter.java

@@ -0,0 +1,71 @@
+package com.baeldung.web.reports;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import javax.servlet.ServletOutputStream;
+import javax.servlet.http.HttpServletResponse;
+
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JRExporterParameter;
+import net.sf.jasperreports.engine.JasperPrint;
+import net.sf.jasperreports.engine.export.JRPdfExporter;
+
+/**
+ * = JasperReportsPdfExporter
+ * 
+ * A JasperReports exporter to export the report in PDF formats. This class
+ * implements the interface {@link JasperReportsExporter}
+ */
+public class JasperReportsPdfExporter implements JasperReportsExporter {
+
+	/**
+	 * Generates a ByteArrayOutputStream from the provided JasperReport using
+	 * the {@link JRPdfExporter}. After that, the generated bytes array is
+	 * written in the {@link HttpServletResponse}
+	 * 
+	 * @param jp
+	 *            The generated JasperReport.
+	 * @param fileName
+	 *            The fileName of the exported JasperReport
+	 * @param response
+	 *            The HttpServletResponse where generated report has been
+	 *            written
+	 * @throws JRException
+	 *             during JasperReport export.
+	 * @throws IOException
+	 *             when writes the ByteArrayOutputStream into the
+	 *             HttpServletResponse
+	 */
+	@Override
+	public void export(JasperPrint jp, String fileName, HttpServletResponse response) throws JRException, IOException {
+
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+		// Create a JRPdfExporter instance
+		JRPdfExporter exporter = new JRPdfExporter();
+
+		// Here we assign the parameters jp and baos to the exporter
+		exporter.setParameter(JRExporterParameter.JASPER_PRINT, jp);
+		exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
+
+		// Retrieve the exported report in PDF format
+		exporter.exportReport();
+
+		// Specifies the response header
+		response.setHeader("Content-Disposition", "inline; filename=" + fileName);
+
+		// Make sure to set the correct content type
+		// Each format has its own content type
+		response.setContentType("application/pdf");
+		response.setContentLength(baos.size());
+
+		// Retrieve the output stream
+		ServletOutputStream outputStream = response.getOutputStream();
+		// Write to the output stream
+		baos.writeTo(outputStream);
+		// Flush the stream
+		outputStream.flush();
+
+	}
+}

spring-roo/src/main/java/com/baeldung/web/reports/JasperReportsXlsExporter.java

@@ -0,0 +1,77 @@
+package com.baeldung.web.reports;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import javax.servlet.ServletOutputStream;
+import javax.servlet.http.HttpServletResponse;
+
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JRExporterParameter;
+import net.sf.jasperreports.engine.JasperPrint;
+import net.sf.jasperreports.engine.export.JRXlsAbstractExporterParameter;
+import net.sf.jasperreports.engine.export.JRXlsExporter;
+
+/**
+ * = JasperReportsXlsExporter
+ * 
+ * A JasperReports exporter to export the report in XLS formats. This class
+ * implements the interface {@link JasperReportsExporter}
+ */
+public class JasperReportsXlsExporter implements JasperReportsExporter {
+
+	/**
+	 * Generates a ByteArrayOutputStream from the provided JasperReport using
+	 * the {@link JRXlsExporter}. After that, the generated bytes array is
+	 * written in the {@link HttpServletResponse}
+	 * 
+	 * @param jp
+	 *            The generated JasperReport.
+	 * @param fileName
+	 *            The fileName of the exported JasperReport
+	 * @param response
+	 *            The HttpServletResponse where generated report has been
+	 *            written
+	 * @throws JRException
+	 *             during JasperReport export.
+	 * @throws IOException
+	 *             when writes the ByteArrayOutputStream into the
+	 *             HttpServletResponse
+	 */
+	@Override
+	public void export(JasperPrint jp, String fileName, HttpServletResponse response) throws JRException, IOException {
+
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+		// Create a JRXlsExporter instance
+		JRXlsExporter exporter = new JRXlsExporter();
+
+		// Here we assign the parameters jp and baos to the exporter
+		exporter.setParameter(JRExporterParameter.JASPER_PRINT, jp);
+		exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
+
+		// Excel specific parameters
+		exporter.setParameter(JRXlsAbstractExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE);
+		exporter.setParameter(JRXlsAbstractExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);
+		exporter.setParameter(JRXlsAbstractExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE);
+
+		// Retrieve the exported report in PDF format
+		exporter.exportReport();
+
+		// Specifies the response header
+		response.setHeader("Content-Disposition", "inline; filename=" + fileName);
+
+		// Make sure to set the correct content type
+		// Each format has its own content type
+		response.setContentType("application/vnd.ms-excel");
+		response.setContentLength(baos.size());
+
+		// Retrieve the output stream
+		ServletOutputStream outputStream = response.getOutputStream();
+		// Write to the output stream
+		baos.writeTo(outputStream);
+		// Flush the stream
+		outputStream.flush();
+
+	}
+}