Java tutorial
/* * 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.servicemonitor.reporting.restapi; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.http.HttpServer; import java.io.Closeable; import java.io.IOException; public class RestServer implements Closeable { private static final Log LOG = LogFactory.getLog(RestServer.class); public static final String OWNER = "owner"; private HttpServer httpServer; private RestReporter owner; private Configuration conf; private String bindAddress; private int port; private String name; public RestServer(String name, RestReporter owner, Configuration conf, String bindAddress, int port) { this.owner = owner; this.conf = conf; this.bindAddress = bindAddress; this.port = port; this.name = name; } public synchronized void start() throws IOException { httpServer = new HttpServer(name, bindAddress, port, false, conf, null, null); httpServer.addServlet("status", "/status", RestStatusServlet.class); // Context ctx = new Context(); // httpServer.addContext(ctx); httpServer.setAttribute(OWNER, owner); httpServer.start(); } @Override public synchronized void close() throws IOException { try { if (httpServer != null) { httpServer.stop(); } } catch (Exception e) { LOG.warn("When stopping http server: " + e, e); } finally { httpServer = null; } } }