JAVA-13855 Create new microservices-modules (#12612)

2022-08-20 14:20:24 +05:30
parent 14c998c3ac
commit 6bc1d484ca
95 changed files with 661 additions and 639 deletions
@@ -0,0 +1,24 @@
+package com.baeldung.openliberty.person.dao;
+
+import javax.enterprise.context.RequestScoped;
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+
+import com.baeldung.openliberty.person.model.Person;
+
+@RequestScoped
+public class PersonDao {
+
+    @PersistenceContext(name = "jpa-unit")
+    private EntityManager em;
+
+    public Person createPerson(Person person) {
+        em.persist(person);
+        return person;
+    }
+
+    public Person readPerson(int personId) {
+        return em.find(Person.class, personId);
+    }
+
+}
@@ -0,0 +1,58 @@
+package com.baeldung.openliberty.person.model;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.validation.constraints.Email;
+import javax.validation.constraints.NotBlank;
+
+@Entity
+public class Person {
+    
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Id
+    private int id;
+    
+    private String username;
+    private String email;
+    
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+    
+    public void setUsername(String username) {
+        this.username = username;
+    }
+    
+    public String getEmail() {
+        return email;
+    }
+    
+    public void setEmail(String email) {
+        this.email = email;
+    }
+    
+    public Person(int id, @NotBlank String username, @Email String email) {
+        super();
+        this.id = id;
+        this.username = username;
+        this.email = email;
+    }
+    
+    public Person() {
+        super();
+    }
+
+    public String toString() {
+        return this.id + ":" +this.username;
+    }
+}
@@ -0,0 +1,52 @@
+package com.baeldung.openliberty.person.resource;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.enterprise.context.RequestScoped;
+import javax.inject.Inject;
+import javax.transaction.Transactional;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import com.baeldung.openliberty.person.dao.PersonDao;
+import com.baeldung.openliberty.person.model.Person;
+
+@RequestScoped
+@Path("persons")
+public class PersonResource {
+
+    @Inject
+    private PersonDao personDao;
+
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public List<Person> getAllPersons() {
+        return Arrays.asList(new Person(1, "normanlewis", "normanlewis@email.com"));
+    }
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Transactional
+    public Response addPerson(Person person) {
+        personDao.createPerson(person);
+        String respMessage = "Person #" + person.getId() + " created successfully.";
+        return Response.status(Response.Status.CREATED).entity(respMessage).build();
+    }
+
+    @GET
+    @Path("{id}")
+    @Produces(MediaType.APPLICATION_JSON)
+    @Transactional
+    public Person getPerson(@PathParam("id") int id) {
+        Person person = personDao.readPerson(id);
+        return person;
+    }
+}
@@ -0,0 +1,9 @@
+package com.baeldung.openliberty.rest;
+
+import javax.ws.rs.ApplicationPath;
+import javax.ws.rs.core.Application;
+
+@ApplicationPath("/api")
+public class ApiApplication extends Application {
+
+}
@@ -0,0 +1,18 @@
+package com.baeldung.openliberty.rest.consumes;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.core.Response;
+
+public class RestConsumer {
+
+    public static String consumeWithJsonb(String targetUrl) {
+        Client client = ClientBuilder.newClient();
+        Response response = client.target(targetUrl).request().get();
+        String result = response.readEntity(String.class);
+        response.close();
+        client.close();
+        return result;
+    }
+
+}
@@ -0,0 +1,27 @@
+package com.baeldung.openliberty.servlet;
+
+import java.io.IOException;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet(urlPatterns="/app")
+public class AppServlet extends HttpServlet {
+
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        String htmlOutput = "<html><h2>Hello! Welcome to Open Liberty</h2></html>";
+        response.getWriter().append(htmlOutput);
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response)
+        throws ServletException, IOException {
+        doGet(request, response);
+    }
+}
@@ -0,0 +1,28 @@
+<server description="Baeldung Open Liberty server">
+    <featureManager>
+        <feature>mpHealth-2.0</feature>
+        <feature>servlet-4.0</feature>
+        <feature>jaxrs-2.1</feature>
+        <feature>jsonp-1.1</feature>
+        <feature>jsonb-1.0</feature>
+        <feature>cdi-2.0</feature>
+        <feature>jpa-2.2</feature>
+    </featureManager>
+
+    <webApplication location="open-liberty.war" contextRoot="/" />
+
+    <logging traceSpecification="com.ibm.ws.microprofile.health.*=all" hideMessage="SRVE9967W" />
+
+    <httpEndpoint host="*" httpPort="${default.http.port}" httpsPort="${default.https.port}" id="defaultHttpEndpoint" />
+
+    <library id="derbyJDBCLib">
+        <fileset dir="${shared.resource.dir}" includes="derby*.jar"/> 
+    </library>
+
+    <!-- Datasource Configuration -->
+    <dataSource id="jpadatasource" jndiName="jdbc/jpadatasource">
+        <jdbcDriver libraryRef="derbyJDBCLib" />
+        <properties.derby.embedded databaseName="libertyDB" createDatabase="create" />
+    </dataSource>
+
+</server>
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<persistence version="2.2"
+    xmlns="http://xmlns.jcp.org/xml/ns/persistence"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
+                        http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd">
+    <persistence-unit name="jpa-unit" transaction-type="JTA">
+        <jta-data-source>jdbc/jpadatasource</jta-data-source>
+        <properties>
+            <property name="eclipselink.ddl-generation" value="create-tables"/>
+            <property name="eclipselink.ddl-generation.output-mode" value="both" />
+        </properties>
+    </persistence-unit>
+</persistence>
@@ -0,0 +1,40 @@
+package com.baeldung.openliberty;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.json.bind.JsonbBuilder;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import com.baeldung.openliberty.person.model.Person;
+import com.baeldung.openliberty.rest.consumes.RestConsumer;
+
+public class RestClientLiveTest {
+
+    private static String BASE_URL;
+
+    private final String API_PERSON = "api/persons";
+
+    @BeforeClass
+    public static void oneTimeSetup() {
+        BASE_URL = "http://localhost:9080/"; 
+    }
+    
+    @Test
+    public void testSuite() {
+        //run the test only when liberty server is started
+        //this.whenConsumeWithJsonb_thenGetPerson();
+    }
+
+    public void whenConsumeWithJsonb_thenGetPerson() {
+        String url = BASE_URL + API_PERSON + "/1";
+        String result = RestConsumer.consumeWithJsonb(url);        
+
+        Person person = JsonbBuilder.create().fromJson(result, Person.class);
+        assertEquals(1, person.getId());
+        assertEquals("normanlewis", person.getUsername());
+        assertEquals("normanlewis@email.com", person.getEmail());
+    }
+
+}