BAEL-5307: Move code from new module to existing (#11868)

2022-03-01 10:07:50 +01:00
parent ce22b5b69c
commit c87c79e035
14 changed files with 531 additions and 0 deletions
@@ -0,0 +1,24 @@
+package com.baeldung.graphql.clients;
+
+import com.baeldung.graphql.data.Data;
+import io.aexp.nodes.graphql.GraphQLRequestEntity;
+import io.aexp.nodes.graphql.GraphQLResponseEntity;
+import io.aexp.nodes.graphql.GraphQLTemplate;
+import org.apache.commons.lang3.StringUtils;
+
+import java.io.IOException;
+
+public class AmericanExpressNodes {
+
+    public static GraphQLResponseEntity<Data> callGraphQLService(String url, String query) throws IOException {
+        GraphQLTemplate graphQLTemplate = new GraphQLTemplate();
+
+        GraphQLRequestEntity requestEntity = GraphQLRequestEntity.Builder()
+          .url(StringUtils.join(url, "?query=", query))
+          .request(Data.class)
+          .build();
+
+        return graphQLTemplate.query(requestEntity, Data.class);
+    }
+
+}
@@ -0,0 +1,25 @@
+package com.baeldung.graphql.clients;
+
+import org.apache.http.HttpResponse;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.utils.URIBuilder;
+import org.apache.http.impl.client.HttpClientBuilder;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+public class ApacheHttpClient {
+
+    public static HttpResponse callGraphQLService(String url, String query) throws URISyntaxException, IOException {
+        HttpClient client = HttpClientBuilder.create().build();
+        HttpGet request = new HttpGet(url);
+        URI uri = new URIBuilder(request.getURI())
+          .addParameter("query", query)
+          .build();
+        request.setURI(uri);
+        return client.execute(request);
+    }
+
+}
@@ -0,0 +1,31 @@
+package com.baeldung.graphql.data;
+
+import org.apache.commons.lang3.StringUtils;
+
+public class Author {
+
+    private String name;
+    private String surname;
+
+    public Author() {
+
+    }
+
+    public Author(String name, String surname) {
+        this.name = name;
+        this.surname = surname;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getSurname() {
+        return surname;
+    }
+
+    public String getFullName() {
+        return StringUtils.join(getName(), " ", getSurname());
+    }
+
+}
@@ -0,0 +1,25 @@
+package com.baeldung.graphql.data;
+
+public class Book {
+
+    private String title;
+    private Author author;
+
+    public Book() {
+
+    }
+
+    public Book(String title, Author author) {
+        this.title = title;
+        this.author = author;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public Author getAuthor() {
+        return author;
+    }
+
+}
@@ -0,0 +1,19 @@
+package com.baeldung.graphql.data;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class BookRepository {
+
+    private static final List<Book> books = Stream.of(
+            new Book("Title 1", new Author("Pero", "Peric")),
+            new Book("Title 2", new Author("Marko", "Maric"))
+        ).collect(Collectors.toList());
+
+    public List<Book> getAllBooks() {
+        return Collections.unmodifiableList(books);
+    }
+
+}
@@ -0,0 +1,22 @@
+package com.baeldung.graphql.data;
+
+import java.util.Collections;
+import java.util.List;
+
+public class Data {
+
+    private List<Book> allBooks;
+
+    public Data() {
+
+    }
+
+    public Data(List<Book> allBooks) {
+        this.allBooks = allBooks;
+    }
+
+    public List<Book> getAllBooks() {
+        return Collections.unmodifiableList(allBooks);
+    }
+
+}
@@ -0,0 +1,19 @@
+package com.baeldung.graphql.data;
+
+public class Response {
+
+    private Data data;
+
+    public Response() {
+
+    }
+
+    public Response(Data data) {
+        this.data = data;
+    }
+
+    public Data getData() {
+        return data;
+    }
+
+}
@@ -0,0 +1,36 @@
+package com.baeldung.graphql.server;
+
+import com.baeldung.graphql.data.BookRepository;
+import com.coxautodev.graphql.tools.SchemaParser;
+import graphql.schema.GraphQLSchema;
+import graphql.servlet.SimpleGraphQLHttpServlet;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@WebServlet(urlPatterns = "/graphql")
+public class GraphQLEndpoint extends HttpServlet {
+
+    private SimpleGraphQLHttpServlet graphQLServlet;
+
+    @Override
+    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        graphQLServlet.service(req, resp);
+    }
+
+    @Override
+    public void init() {
+        GraphQLSchema schema = SchemaParser.newParser()
+          .resolvers(new GraphQLQuery(new BookRepository()))
+          .file("schema.graphqls")
+          .build()
+          .makeExecutableSchema();
+        graphQLServlet = SimpleGraphQLHttpServlet
+          .newBuilder(schema)
+          .build();
+    }
+}
@@ -0,0 +1,21 @@
+package com.baeldung.graphql.server;
+
+import com.baeldung.graphql.data.Book;
+import com.baeldung.graphql.data.BookRepository;
+import com.coxautodev.graphql.tools.GraphQLQueryResolver;
+
+import java.util.List;
+
+public class GraphQLQuery implements GraphQLQueryResolver {
+
+    private final BookRepository repository;
+
+    public GraphQLQuery(BookRepository repository) {
+        this.repository = repository;
+    }
+
+    public List<Book> allBooks() {
+        return repository.getAllBooks();
+    }
+
+}
@@ -0,0 +1,17 @@
+type Book {
+  title: String!
+  author: Author
+}
+
+type Author {
+  name: String!
+  surname: String!
+}
+
+type Query {
+  allBooks: [Book]
+}
+
+schema {
+  query: Query
+}