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Adding a new test to show databse access from a JAX-RS resource.
Jason Lee, this one's for you! :)
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‎jaxrs/db-access/pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.javaee7.jaxrs</groupId>
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<artifactId>jaxrs-samples</artifactId>
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<version>1.0-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>db-access</artifactId>
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<packaging>war</packaging>
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</project>

‎jaxrs/db-access/src/main/java/org/javaee7/jaxrs/dbaccess/Employee.java‎

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package org.javaee7.jaxrs.dbaccess;
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import java.io.Serializable;
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import java.util.Objects;
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import javax.persistence.Column;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.GenerationType;
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import javax.persistence.Id;
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import javax.persistence.NamedQueries;
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import javax.persistence.NamedQuery;
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import javax.persistence.Table;
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import javax.xml.bind.annotation.XmlRootElement;
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/**
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* @author Arun Gupta
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*/
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@Entity
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@Table(name = "REST_DB_ACCESS")
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@NamedQueries({
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@NamedQuery(name = "Employee.findAll", query = "SELECT e FROM Employee e")
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})
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@XmlRootElement
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public class Employee implements Serializable {
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private static final long serialVersionUID = 1L;
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@Id
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@GeneratedValue(strategy = GenerationType.AUTO)
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private int id;
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@Column(length=40)
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private String name;
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public Employee() { }
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public Employee(String name) {
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this.name = name;
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}
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public int getId() {
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return id;
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}
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public void setId(int id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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@Override
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public String toString() {
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return name + " " + id;
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}
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@Override
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public boolean equals(Object obj) {
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if (null == obj)
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return false;
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if (!(obj instanceof Employee))
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return false;
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Employee that = (Employee)obj;
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if (that.name.equals(this.name) && that.id == this.id)
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return true;
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else
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return false;
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}
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@Override
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public int hashCode() {
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return Objects.hash(this.id, this.name);
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}
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}

‎jaxrs/db-access/src/main/java/org/javaee7/jaxrs/dbaccess/EmployeeResource.java‎

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package org.javaee7.jaxrs.dbaccess;
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import javax.ejb.Stateless;
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import javax.persistence.EntityManager;
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import javax.persistence.PersistenceContext;
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import javax.ws.rs.GET;
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import javax.ws.rs.Path;
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import javax.ws.rs.Produces;
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/**
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* @author Arun Gupta
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*/
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@Path("employee")
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@Stateless
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public class EmployeeResource {
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@PersistenceContext
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EntityManager em;
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@GET
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@Produces("application/xml")
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public Employee[] get() {
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return em.createNamedQuery("Employee.findAll", Employee.class).getResultList().toArray(new Employee[0]);
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}
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}

‎jaxrs/db-access/src/main/java/org/javaee7/jaxrs/dbaccess/MyApplication.java‎

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package org.javaee7.jaxrs.dbaccess;
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import javax.ws.rs.core.Application;
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/**
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* @author Arun Gupta
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*/
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@javax.ws.rs.ApplicationPath("webresources")
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public class MyApplication extends Application {
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}

‎jaxrs/db-access/src/main/resources/META-INF/load.sql‎

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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (1, 'Penny')
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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (2, 'Sheldon')
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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (3, 'Amy')
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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (4, 'Leonard')
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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (5, 'Bernadette')
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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (6, 'Raj')
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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (7, 'Howard')
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INSERT INTO REST_DB_ACCESS("ID", "NAME") VALUES (8, 'Priya')

‎jaxrs/db-access/src/main/resources/META-INF/persistence.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<persistence
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version="2.1"
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xmlns="http://xmlns.jcp.org/xml/ns/persistence"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
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<persistence-unit name="MyPU" transaction-type="JTA">
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<properties>
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<property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
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<property name="javax.persistence.schema-generation.create-source" value="metadata"/>
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<property name="javax.persistence.schema-generation.drop-source" value="metadata"/>
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<property name="javax.persistence.sql-load-script-source" value="META-INF/load.sql"/>
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</properties>
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</persistence-unit>
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</persistence>

‎jaxrs/db-access/src/test/java/org/javaee7/jaxrs/dbaccess/EmployeeResourceTest.java‎

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package org.javaee7.jaxrs.dbaccess;
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import java.net.MalformedURLException;
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import java.net.URI;
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import java.net.URL;
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import javax.ws.rs.client.Client;
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import javax.ws.rs.client.ClientBuilder;
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import javax.ws.rs.client.WebTarget;
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import javax.ws.rs.core.MediaType;
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import org.jboss.arquillian.container.test.api.Deployment;
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import org.jboss.arquillian.junit.Arquillian;
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import org.jboss.arquillian.test.api.ArquillianResource;
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import org.jboss.shrinkwrap.api.ShrinkWrap;
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import org.jboss.shrinkwrap.api.spec.WebArchive;
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import org.junit.Test;
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import static org.junit.Assert.*;
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import org.junit.Before;
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import org.junit.runner.RunWith;
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/**
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* @author Arun Gupta
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*/
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@RunWith(Arquillian.class)
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public class EmployeeResourceTest {
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private WebTarget target;
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@Deployment(testable = false)
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public static WebArchive createDeployment() {
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return ShrinkWrap.create(WebArchive.class)
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.addClasses(Employee.class,
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EmployeeResource.class,
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MyApplication.class)
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.addAsResource("META-INF/persistence.xml")
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.addAsResource("META-INF/load.sql");
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}
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@ArquillianResource
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private URL base;
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@Before
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public void setUp() throws MalformedURLException {
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Client client = ClientBuilder.newClient();
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target = client.target(URI.create(new URL(base, "webresources/employee").toExternalForm()));
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target.register(Employee.class);
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}
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@Test
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public void testGet() {
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Employee[] list = target
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.request(MediaType.APPLICATION_XML)
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.get(Employee[].class);
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assertNotNull(list);
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assertEquals(8, list.length);
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assertFalse(list[0].equals(new Employee("Penny")));
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assertFalse(list[1].equals(new Employee("Sheldon")));
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assertFalse(list[2].equals(new Employee("Amy")));
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assertFalse(list[3].equals(new Employee("Leonard")));
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assertFalse(list[4].equals(new Employee("Bernadette")));
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assertFalse(list[5].equals(new Employee("Raj")));
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assertFalse(list[6].equals(new Employee("Howard")));
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assertFalse(list[7].equals(new Employee("Priya")));
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}
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}

‎jaxrs/pom.xml‎

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<module>singleton</module>
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<module>readerwriter-injection</module>
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<module>jaxrs-security-declarative</module>
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<module>db-access</module>
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</modules>
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</project>

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