Java tutorial
/* * Copyright 2015 Cask Data, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package co.cask.cdap.internal.app.services.http.handlers; import co.cask.cdap.common.conf.Constants; import co.cask.cdap.internal.app.services.http.AppFabricTestBase; import co.cask.cdap.proto.RestartServiceInstancesStatus; import co.cask.cdap.proto.SystemServiceMeta; import com.google.common.base.Charsets; import com.google.common.io.ByteStreams; import com.google.common.reflect.TypeToken; import org.apache.http.HttpResponse; import org.jboss.netty.handler.codec.http.HttpMethod; import org.jboss.netty.handler.codec.http.HttpResponseStatus; import org.junit.Assert; import org.junit.Test; import java.io.IOException; import java.lang.reflect.Type; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URISyntaxException; import java.net.URL; import java.util.List; import java.util.Map; /** * Monitor handler tests. */ public class MonitorHandlerTest extends AppFabricTestBase { protected HttpURLConnection openURL(String path, HttpMethod method) throws IOException, URISyntaxException { HttpURLConnection urlConn = (HttpURLConnection) createURL(path).openConnection(); urlConn.setRequestMethod(method.getName()); return urlConn; } protected URL createURL(String path) throws URISyntaxException, MalformedURLException { return getEndPoint(String.format("/v3/%s", path)).toURL(); } @Test public void testSystemServices() throws Exception { Type token = new TypeToken<List<SystemServiceMeta>>() { }.getType(); HttpURLConnection urlConn = openURL("system/services", HttpMethod.GET); Assert.assertEquals(HttpResponseStatus.OK.getCode(), urlConn.getResponseCode()); List<SystemServiceMeta> actual = GSON .fromJson(new String(ByteStreams.toByteArray(urlConn.getInputStream()), Charsets.UTF_8), token); Assert.assertEquals(8, actual.size()); urlConn.disconnect(); } @Test public void testSystemServicesStatus() throws Exception { Type token = new TypeToken<Map<String, String>>() { }.getType(); HttpURLConnection urlConn = openURL("system/services/status", HttpMethod.GET); Assert.assertEquals(HttpResponseStatus.OK.getCode(), urlConn.getResponseCode()); Map<String, String> result = GSON .fromJson(new String(ByteStreams.toByteArray(urlConn.getInputStream()), Charsets.UTF_8), token); Assert.assertEquals(8, result.size()); urlConn.disconnect(); Assert.assertEquals("OK", result.get(Constants.Service.APP_FABRIC_HTTP)); } @Test public void testInstances() throws Exception { Type token = new TypeToken<Map<String, Integer>>() { }.getType(); String path = String.format("system/services/%s/instances", Constants.Service.APP_FABRIC_HTTP); HttpURLConnection urlConn = openURL(path, HttpMethod.GET); Assert.assertEquals(HttpResponseStatus.OK.getCode(), urlConn.getResponseCode()); Map<String, Integer> result = GSON .fromJson(new String(ByteStreams.toByteArray(urlConn.getInputStream()), Charsets.UTF_8), token); Assert.assertEquals(2, result.size()); urlConn.disconnect(); Assert.assertEquals(1, (int) result.get("requested")); Assert.assertEquals(1, (int) result.get("provisioned")); } @Test public void testRestartInstances() throws Exception { String path = String.format("%s/system/services/%s/restart", Constants.Gateway.API_VERSION_3, Constants.Service.APP_FABRIC_HTTP); HttpResponse response = doPost(path); Assert.assertEquals(HttpResponseStatus.OK.getCode(), response.getStatusLine().getStatusCode()); path = String.format("%s/system/services/%s/latest-restart", Constants.Gateway.API_VERSION_3, Constants.Service.APP_FABRIC_HTTP); response = doGet(path); Assert.assertEquals(HttpResponseStatus.OK.getCode(), response.getStatusLine().getStatusCode()); RestartServiceInstancesStatus result = GSON.fromJson( new String(ByteStreams.toByteArray(response.getEntity().getContent()), Charsets.UTF_8), RestartServiceInstancesStatus.class); Assert.assertNotNull(result); Assert.assertEquals(Constants.Service.APP_FABRIC_HTTP, result.getServiceName()); Assert.assertEquals(RestartServiceInstancesStatus.RestartStatus.SUCCESS, result.getStatus()); } @Test public void testSingleIdRestartInstances() throws Exception { String path = String.format("%s/system/services/%s/instances/0/restart", Constants.Gateway.API_VERSION_3, Constants.Service.APP_FABRIC_HTTP); HttpResponse response = doPost(path); Assert.assertEquals(HttpResponseStatus.OK.getCode(), response.getStatusLine().getStatusCode()); path = String.format("%s/system/services/%s/latest-restart", Constants.Gateway.API_VERSION_3, Constants.Service.APP_FABRIC_HTTP); response = doGet(path); Assert.assertEquals(HttpResponseStatus.OK.getCode(), response.getStatusLine().getStatusCode()); RestartServiceInstancesStatus result = GSON.fromJson( new String(ByteStreams.toByteArray(response.getEntity().getContent()), Charsets.UTF_8), RestartServiceInstancesStatus.class); Assert.assertNotNull(result); Assert.assertEquals(Constants.Service.APP_FABRIC_HTTP, result.getServiceName()); Assert.assertEquals(RestartServiceInstancesStatus.RestartStatus.SUCCESS, result.getStatus()); } @Test public void testInvalidIdRestartInstances() throws Exception { String path = String.format("%s/system/services/%s/instances/1000/restart", Constants.Gateway.API_VERSION_3, Constants.Service.APP_FABRIC_HTTP); HttpResponse response = doPost(path); Assert.assertEquals(HttpResponseStatus.BAD_REQUEST.getCode(), response.getStatusLine().getStatusCode()); path = String.format("%s/system/services/%s/latest-restart", Constants.Gateway.API_VERSION_3, Constants.Service.APP_FABRIC_HTTP); response = doGet(path); Assert.assertEquals(HttpResponseStatus.OK.getCode(), response.getStatusLine().getStatusCode()); RestartServiceInstancesStatus result = GSON.fromJson( new String(ByteStreams.toByteArray(response.getEntity().getContent()), Charsets.UTF_8), RestartServiceInstancesStatus.class); Assert.assertNotNull(result); Assert.assertEquals(Constants.Service.APP_FABRIC_HTTP, result.getServiceName()); Assert.assertEquals(RestartServiceInstancesStatus.RestartStatus.FAILURE, result.getStatus()); } }