| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.ambari.server.controller.gsinstaller; |
| |
| import org.apache.ambari.server.controller.internal.AbstractProviderModule; |
| import org.apache.ambari.server.controller.spi.Resource; |
| import org.apache.ambari.server.controller.spi.ResourceProvider; |
| |
| import java.io.IOException; |
| import java.net.HttpURLConnection; |
| import java.net.URL; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * A provider module implementation that uses the GSInstaller resource provider. |
| */ |
| public class GSInstallerProviderModule extends AbstractProviderModule implements GSInstallerStateProvider{ |
| |
| private final ClusterDefinition clusterDefinition; |
| |
| private static final Map<String, String> PORTS = new HashMap<String, String>(); |
| |
| static { |
| PORTS.put("NAMENODE", "50070"); |
| PORTS.put("DATANODE", "50075"); |
| PORTS.put("JOBTRACKER", "50030"); |
| PORTS.put("TASKTRACKER", "50060"); |
| PORTS.put("HBASE_MASTER", "60010"); |
| } |
| |
| private static final int TIMEOUT = 5000; |
| |
| |
| // ----- Constructors ------------------------------------------------------ |
| |
| public GSInstallerProviderModule() { |
| clusterDefinition = new ClusterDefinition(this); |
| } |
| |
| |
| // ----- GSInstallerStateProvider ------------------------------------------ |
| |
| @Override |
| public boolean isHealthy(String hostName, String componentName) { |
| String port = PORTS.get(componentName); |
| if (port != null) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("http://").append(hostName); |
| sb.append(":").append(port); |
| |
| try { |
| HttpURLConnection connection = (HttpURLConnection) new URL(sb.toString()).openConnection(); |
| |
| connection.setRequestMethod("HEAD"); |
| connection.setConnectTimeout(TIMEOUT); |
| connection.setReadTimeout(TIMEOUT); |
| |
| int code = connection.getResponseCode(); |
| |
| return code >= 200 && code <= 399; |
| } catch (IOException exception) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| |
| // ----- utility methods --------------------------------------------------- |
| |
| @Override |
| protected ResourceProvider createResourceProvider(Resource.Type type) { |
| return GSInstallerResourceProvider.getResourceProvider(type, clusterDefinition); |
| } |
| } |