JAX-RS Client [BAEL-595] (#992)

* WatchService vs. Apache Commons IO Mnitoring

* Indentation fixed

* Indentation fixed

* JAX-RS API using Jersey [BAEL-558]

* JAX-RS API using Jersey [BAEL-558]

* Modifications made to remove xml

* applicationContext.xml removed

* All try catch moved to ExceptionMapper

* fixes

* review comments incorporated

* module renamed

* JAX-RS client [BAEL-595]

* jersey-core dependency removed

* assert changed to assertEquals

* messagebody readers and writers removed

* pom dependency corrected and other minor changes

spring-jersey/pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>com.baeldung</groupId>
-    <artifactId>jersey-api</artifactId>
+    <artifactId>spring-jersey</artifactId>
     <version>0.1-SNAPSHOT</version>
     <packaging>war</packaging>
 
@@ -23,6 +23,7 @@
     </properties>
 
     <build>
+        <finalName>spring-jersey</finalName>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
@@ -75,11 +76,6 @@
 
         <!-- core library -->
 
-        <dependency>
-            <groupId>org.glassfish.jersey.core</groupId>
-            <artifactId>jersey-server</artifactId>
-            <version>${jersey.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.glassfish.jersey.containers</groupId>
             <artifactId>jersey-container-servlet</artifactId>
@@ -90,6 +86,12 @@
             <artifactId>jersey-media-json-jackson</artifactId>
             <version>${jersey.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.glassfish.jersey.core</groupId>
+            <artifactId>jersey-client</artifactId>
+            <version>${jersey.version}</version>
+        </dependency>
+
         <!-- servlet api -->
         <dependency>
             <groupId>javax.servlet</groupId>
@@ -97,8 +99,8 @@
             <version>${servlet-api-version}</version>
             <scope>provided</scope>
         </dependency>
-        <!-- optional library -->
 
+        <!-- optional library -->
         <dependency>
             <groupId>org.glassfish.jersey.ext</groupId>
             <artifactId>jersey-spring3</artifactId>

spring-jersey/src/main/java/com/baeldung/client/rest/RestClient.java

@@ -0,0 +1,31 @@
+package com.baeldung.client.rest;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import com.baeldung.server.model.Employee;
+
+public class RestClient {
+
+    private static final String REST_URI = "http://localhost:8082/spring-jersey/resources/employees";
+    private Client client = ClientBuilder.newClient();
+
+    public Response createJsonEmployee(Employee emp) {
+        return client.target(REST_URI).request(MediaType.APPLICATION_JSON).post(Entity.entity(emp, MediaType.APPLICATION_JSON));
+    }
+
+    public Employee getJsonEmployee(int id) {
+        return client.target(REST_URI).path(new Integer(id).toString()).request(MediaType.APPLICATION_JSON).get(Employee.class);
+    }
+
+    public Response createXmlEmployee(Employee emp) {
+        return client.target(REST_URI).request(MediaType.APPLICATION_XML).post(Entity.entity(emp, MediaType.APPLICATION_XML));
+    }
+
+    public Employee getXmlEmployee(int id) {
+        return client.target(REST_URI).path(new Integer(id).toString()).request(MediaType.APPLICATION_XML).get(Employee.class);
+    }
+}

spring-jersey/src/test/java/com/baeldung/client/JerseyClientLiveTest.java

@@ -0,0 +1,53 @@
+package com.baeldung.client;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.ws.rs.core.Response;
+
+import org.junit.Test;
+
+import com.baeldung.client.rest.RestClient;
+import com.baeldung.server.model.Employee;
+
+public class JerseyClientLiveTest {
+
+    public static final int HTTP_CREATED = 201;
+
+    private RestClient client = new RestClient();
+
+    @Test
+    public void givenCorrectObject_whenCorrectJsonRequest_thenResponseCodeCreated() {
+        Employee emp = new Employee(6, "Johny");
+
+        Response response = client.createJsonEmployee(emp);
+
+        assertEquals(response.getStatus(), HTTP_CREATED);
+    }
+
+    @Test
+    public void givenCorrectObject_whenCorrectXmlRequest_thenResponseCodeCreated() {
+        Employee emp = new Employee(7, "Jacky");
+
+        Response response = client.createXmlEmployee(emp);
+
+        assertEquals(response.getStatus(), HTTP_CREATED);
+    }
+
+    @Test
+    public void givenCorrectId_whenCorrectJsonRequest_thenCorrectEmployeeRetrieved() {
+        int employeeId = 1;
+
+        Employee emp = client.getJsonEmployee(employeeId);
+
+        assertEquals(emp.getFirstName(), "Jane");
+    }
+
+    @Test
+    public void givenCorrectId_whenCorrectXmlRequest_thenCorrectEmployeeRetrieved() {
+        int employeeId = 1;
+
+        Employee emp = client.getXmlEmployee(employeeId);
+
+        assertEquals(emp.getFirstName(), "Jane");
+    }
+}

spring-jersey/src/test/java/com/baeldung/server/JerseyApiLiveTest.java

@@ -1,5 +1,8 @@
 package com.baeldung.server;
 
+
+import static org.junit.Assert.assertEquals;
+
 import com.baeldung.server.model.Employee;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.http.HttpResponse;
@@ -15,7 +18,7 @@ import java.io.IOException;
 
 public class JerseyApiLiveTest {
 
-    private static final String SERVICE_URL = "http://localhost:8082/jersey-api/resources/employees";
+    private static final String SERVICE_URL = "http://localhost:8082/spring-jersey/resources/employees";
 
     @Test
     public void givenGetAllEmployees_whenCorrectRequest_thenResponseCodeSuccess() throws IOException {
@@ -23,7 +26,7 @@ public class JerseyApiLiveTest {
 
         final HttpResponse httpResponse = HttpClientBuilder.create().build().execute(request);
 
-        assert(httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK);
+        assertEquals(httpResponse.getStatusLine().getStatusCode(), HttpStatus.SC_OK);
     }
 
     @Test
@@ -32,7 +35,7 @@ public class JerseyApiLiveTest {
 
         final HttpResponse httpResponse = HttpClientBuilder.create().build().execute(request);
 
-        assert(httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK);
+        assertEquals(httpResponse.getStatusLine().getStatusCode(), HttpStatus.SC_OK);
     }
 
     @Test
@@ -41,7 +44,7 @@ public class JerseyApiLiveTest {
 
         final HttpResponse httpResponse = HttpClientBuilder.create().build().execute(request);
 
-        assert(httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_NOT_FOUND);
+        assertEquals(httpResponse.getStatusLine().getStatusCode(), HttpStatus.SC_NOT_FOUND);
     }
 
     @Test
@@ -53,7 +56,7 @@ public class JerseyApiLiveTest {
         ObjectMapper mapper = new ObjectMapper();
         Employee emp = mapper.readValue(httpResponse.getEntity().getContent(), Employee.class);
 
-        assert(emp.getFirstName().equals("Jane"));
+        assertEquals(emp.getFirstName(), "Jane");
     }
 
     @Test
@@ -68,7 +71,7 @@ public class JerseyApiLiveTest {
         request.setEntity(input);
         final HttpResponse httpResponse = HttpClientBuilder.create().build().execute(request);
 
-        assert(httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_CREATED);
+        assertEquals(httpResponse.getStatusLine().getStatusCode(), HttpStatus.SC_CREATED);
     }
 
     @Test
@@ -83,7 +86,7 @@ public class JerseyApiLiveTest {
         request.setEntity(input);
         final HttpResponse httpResponse = HttpClientBuilder.create().build().execute(request);
 
-        assert(httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_CONFLICT);
+        assertEquals(httpResponse.getStatusLine().getStatusCode(), HttpStatus.SC_CONFLICT);
     }
 
 }