Aggiunto l'esempio del capitolo su JAX-RS

jaxrsdemo/src/main/java/it/plague/jeedemo/ApplicationConfig.java

@@ -0,0 +1,23 @@
+package it.plague.jeedemo;
+
+import java.util.HashSet;
+import java.util.Set;
+import javax.ws.rs.ApplicationPath;
+import javax.ws.rs.core.Application;
+
+@ApplicationPath("rs")
+public class ApplicationConfig extends Application {
+
+  @Override
+  public Set<Class<?>> getClasses() {
+    Set<Class<?>> resources = new HashSet<>();
+    addRestResources(resources);
+    return resources;
+  }
+
+  private void addRestResources(Set<Class<?>> resources) {
+    resources.add(it.plague.jeedemo.BookRestService.class);
+    resources.add(org.eclipse.persistence.jaxb.rs.MOXyJsonProvider.class);
+  }
+
+}

jaxrsdemo/src/main/java/it/plague/jeedemo/Book.java

@@ -0,0 +1,43 @@
+package it.plague.jeedemo;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.NamedQuery;
+import javax.xml.bind.annotation.XmlRootElement;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@XmlRootElement
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+@NamedQuery(name = Book.FIND_ALL, query = "select b from Book b")
+public class Book {
+
+  public static final String FIND_ALL = "FIND_ALL";
+
+  @Id
+  @GeneratedValue
+  private String id;
+
+  @Column(nullable = false)
+  private String title;
+
+  private Float price;
+
+  @Column(length = 2000)
+  private String description;
+
+  private String isbn;
+
+  private Integer nbOfPage;
+
+  private Boolean illustrations;
+
+}

jaxrsdemo/src/main/java/it/plague/jeedemo/BookRestService.java

@@ -0,0 +1,75 @@
+package it.plague.jeedemo;
+
+import java.net.URI;
+import javax.ejb.Stateless;
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+import javax.persistence.TypedQuery;
+import javax.ws.rs.BadRequestException;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.NotFoundException;
+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.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriInfo;
+
+@Path("/book")
+@Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
+@Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
+@Stateless
+public class BookRestService {
+
+  @PersistenceContext(name = "jaxrsPU")
+  private EntityManager em;
+
+  @Context
+  private UriInfo uriInfo;
+
+  @GET
+  public Response getBooks() {
+    TypedQuery<Book> query = em.createNamedQuery(Book.FIND_ALL, Book.class);
+    Books books = new Books(query.getResultList());
+    return Response.ok(books).build();
+  }
+
+  @GET
+  @Path("{id}")
+  public Response getBook(@PathParam("id") String id) {
+    Book book = em.find(Book.class, id);
+    if (book == null) {
+      throw new NotFoundException();
+    }
+    return Response.ok(book)
+        .build();
+  }
+
+  @POST
+  public Response createBook(Book book) {
+    if (book == null) {
+      throw new BadRequestException();
+    }
+    em.persist(book);
+    URI location = uriInfo.getAbsolutePathBuilder()
+        .path(book.getId())
+        .build();
+    return Response.created(location).build();
+  }
+
+  @DELETE
+  @Path("{id}")
+  public Response deleteBook(@PathParam("id") String id) {
+    Book book = em.find(Book.class, id);
+    if (book == null) {
+      throw new NotFoundException();
+    }
+    em.remove(book);
+    return Response.noContent().build();
+  }
+
+}

jaxrsdemo/src/main/java/it/plague/jeedemo/Books.java

@@ -0,0 +1,29 @@
+package it.plague.jeedemo;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlSeeAlso;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+@XmlRootElement
+@XmlSeeAlso(Book.class)
+public class Books extends ArrayList<Book> {
+
+  public Books(Collection<? extends Book> c) {
+    super(c);
+  }
+
+  @XmlElement(name = "book")
+  public List<Book> getBooks() {
+    return this;
+  }
+
+  public void setBooks(List<Book> books) {
+    this.addAll(books);
+  }
+
+}

jaxrsdemo/src/main/java/it/plague/jeedemo/DatabasePopulator.java

@@ -0,0 +1,59 @@
+package it.plague.jeedemo;
+
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+import javax.annotation.sql.DataSourceDefinition;
+import javax.ejb.Singleton;
+import javax.ejb.Startup;
+import javax.inject.Inject;
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+
+
+@Startup
+@Singleton
+@DataSourceDefinition(
+    className = "org.apache.derby.jdbc.EmbeddedDataSource",
+    name = "java:global/jdbc/jaxrsoPU",
+    user = "APP",
+    password = "APP",
+    databaseName = "testdb",
+    properties = {"connectionAttributes=;create=true"})
+public class DatabasePopulator {
+
+  @PersistenceContext(name = "jaxrsPU")
+  private EntityManager em;
+
+  private Book h2g2;
+  private Book lord;
+
+  @PostConstruct
+  private void populateDB() {
+    h2g2 = Book.builder()
+        .title("Beginning Java EE 7")
+        .price(35f)
+        .description("Great book")
+        .isbn("1-8763-9125-7")
+        .nbOfPage(605)
+        .illustrations(true)
+        .build();
+    lord = Book.builder()
+        .title("The Lord of the Rings")
+        .price(50.4f)
+        .description("SciFi")
+        .isbn("1-84023-742-2")
+        .nbOfPage(1216)
+        .illustrations(true)
+        .build();
+
+    em.persist(h2g2);
+    em.persist(lord);
+  }
+
+  @PreDestroy
+  private void clearDB() {
+    em.remove(h2g2);
+    em.remove(lord);
+  }
+
+}

jaxrsdemo/src/main/resources/META-INF/beans.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans
+  xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee 
+                      http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
+  bean-discovery-mode="all">
+</beans>

jaxrsdemo/src/main/resources/META-INF/persistence.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<persistence version="2.1"
+  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_1.xsd">
+
+  <persistence-unit name="jaxrsoPU" transaction-type="JTA">
+    <jta-data-source>java:global/jdbc/jaxrsoPU</jta-data-source>
+    <properties>
+      <property name="eclipselink.target-database" value="DERBY"/>
+      <property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>
+      <property name="eclipselink.logging.level" value="ALL"/>
+    </properties>
+  </persistence-unit>
+
+</persistence>