| // 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 com.cloud.cluster; |
| |
| import java.io.IOException; |
| import java.rmi.RemoteException; |
| |
| import org.apache.commons.httpclient.HttpClient; |
| import org.apache.commons.httpclient.HttpException; |
| import org.apache.commons.httpclient.HttpStatus; |
| import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager; |
| import org.apache.commons.httpclient.methods.PostMethod; |
| import org.apache.commons.httpclient.params.HttpClientParams; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.LogManager; |
| |
| import com.cloud.utils.Profiler; |
| |
| public class ClusterServiceServletImpl implements ClusterService { |
| private static final long serialVersionUID = 4574025200012566153L; |
| protected Logger logger = LogManager.getLogger(getClass()); |
| |
| private String _serviceUrl; |
| |
| protected static HttpClient s_client = null; |
| |
| public ClusterServiceServletImpl() { |
| } |
| |
| public ClusterServiceServletImpl(final String serviceUrl) { |
| logger.info("Setup cluster service servlet. service url: " + serviceUrl + ", request timeout: " + ClusterServiceAdapter.ClusterMessageTimeOut.value() + |
| " seconds"); |
| |
| _serviceUrl = serviceUrl; |
| } |
| |
| @Override |
| public String execute(final ClusterServicePdu pdu) throws RemoteException { |
| |
| final HttpClient client = getHttpClient(); |
| final PostMethod method = new PostMethod(_serviceUrl); |
| |
| method.addParameter("method", Integer.toString(RemoteMethodConstants.METHOD_DELIVER_PDU)); |
| method.addParameter("sourcePeer", pdu.getSourcePeer()); |
| method.addParameter("destPeer", pdu.getDestPeer()); |
| method.addParameter("pduSeq", Long.toString(pdu.getSequenceId())); |
| method.addParameter("pduAckSeq", Long.toString(pdu.getAckSequenceId())); |
| method.addParameter("agentId", Long.toString(pdu.getAgentId())); |
| method.addParameter("gsonPackage", pdu.getJsonPackage()); |
| method.addParameter("stopOnError", pdu.isStopOnError() ? "1" : "0"); |
| method.addParameter("pduType", Integer.toString(pdu.getPduType())); |
| |
| return executePostMethod(client, method); |
| } |
| |
| @Override |
| public boolean ping(final String callingPeer) throws RemoteException { |
| if (logger.isDebugEnabled()) { |
| logger.debug("Ping at " + _serviceUrl); |
| } |
| |
| final HttpClient client = getHttpClient(); |
| final PostMethod method = new PostMethod(_serviceUrl); |
| |
| method.addParameter("method", Integer.toString(RemoteMethodConstants.METHOD_PING)); |
| method.addParameter("callingPeer", callingPeer); |
| |
| final String returnVal = executePostMethod(client, method); |
| if ("true".equalsIgnoreCase(returnVal)) { |
| return true; |
| } |
| return false; |
| } |
| |
| private String executePostMethod(final HttpClient client, final PostMethod method) { |
| int response = 0; |
| String result = null; |
| try { |
| final Profiler profiler = new Profiler(); |
| profiler.start(); |
| response = client.executeMethod(method); |
| if (response == HttpStatus.SC_OK) { |
| result = method.getResponseBodyAsString(); |
| profiler.stop(); |
| if (logger.isDebugEnabled()) { |
| logger.debug("POST " + _serviceUrl + " response :" + result + ", responding time: " + profiler.getDurationInMillis() + " ms"); |
| } |
| } else { |
| profiler.stop(); |
| logger.error("Invalid response code : " + response + ", from : " + _serviceUrl + ", method : " + method.getParameter("method") + " responding time: " + |
| profiler.getDurationInMillis()); |
| } |
| } catch (final HttpException e) { |
| logger.error("HttpException from : " + _serviceUrl + ", method : " + method.getParameter("method")); |
| } catch (final IOException e) { |
| logger.error("IOException from : " + _serviceUrl + ", method : " + method.getParameter("method")); |
| } catch (final Throwable e) { |
| logger.error("Exception from : " + _serviceUrl + ", method : " + method.getParameter("method") + ", exception :", e); |
| } finally { |
| method.releaseConnection(); |
| } |
| |
| return result; |
| } |
| |
| private HttpClient getHttpClient() { |
| |
| if (s_client == null) { |
| final MultiThreadedHttpConnectionManager mgr = new MultiThreadedHttpConnectionManager(); |
| mgr.getParams().setDefaultMaxConnectionsPerHost(4); |
| |
| // TODO make it configurable |
| mgr.getParams().setMaxTotalConnections(1000); |
| |
| s_client = new HttpClient(mgr); |
| final HttpClientParams clientParams = new HttpClientParams(); |
| clientParams.setSoTimeout(ClusterServiceAdapter.ClusterMessageTimeOut.value() * 1000); |
| |
| s_client.setParams(clientParams); |
| } |
| return s_client; |
| } |
| |
| } |