| /** |
| * 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.oozie.command; |
| |
| import java.io.IOException; |
| import java.net.HttpURLConnection; |
| import java.net.InetSocketAddress; |
| import java.net.Proxy; |
| import java.net.URL; |
| import org.apache.oozie.service.ConfigurationService; |
| import org.apache.oozie.util.LogUtils; |
| import org.apache.oozie.util.XLog; |
| |
| public abstract class NotificationXCommand extends XCommand<Void> { |
| |
| public static final String NOTIFICATION_URL_CONNECTION_TIMEOUT_KEY = "oozie.notification.url.connection.timeout"; |
| public static final String NOTIFICATION_PROXY_KEY = "oozie.notification.proxy"; |
| private static final int MAX_RETRIES = 3; |
| |
| protected int retries = 0; |
| protected String jobId; |
| protected String url; |
| protected String proxyConf; |
| |
| public NotificationXCommand(String name, String type, int priority) { |
| super(name, type, priority); |
| } |
| |
| @Override |
| final protected boolean isLockRequired() { |
| return false; |
| } |
| |
| @Override |
| public String getEntityKey() { |
| return jobId; |
| } |
| |
| @Override |
| protected void verifyPrecondition() throws CommandException, PreconditionException { |
| |
| } |
| |
| @Override |
| protected Void execute() throws CommandException { |
| sendNotification(); |
| return null; |
| } |
| |
| @Override |
| protected void setLogInfo() { |
| LogUtils.setLogInfo(jobId); |
| } |
| |
| protected Proxy getProxy(String proxyConf) { |
| // Configure the proxy to use if its set. It should be set like |
| // proxyType@proxyHostname:port |
| if (proxyConf != null && !proxyConf.trim().equals("") && proxyConf.lastIndexOf(":") != -1) { |
| int typeIndex = proxyConf.indexOf("@"); |
| Proxy.Type proxyType = Proxy.Type.HTTP; |
| if (typeIndex != -1 && proxyConf.substring(0, typeIndex).compareToIgnoreCase("socks") == 0) { |
| proxyType = Proxy.Type.SOCKS; |
| } |
| String hostname = proxyConf.substring(typeIndex + 1, proxyConf.lastIndexOf(":")); |
| String portConf = proxyConf.substring(proxyConf.lastIndexOf(":") + 1); |
| try { |
| int port = Integer.parseInt(portConf); |
| LOG.info("Workflow notification using proxy type \"" + proxyType + "\" hostname \"" + hostname |
| + "\" and port \"" + port + "\""); |
| return new Proxy(proxyType, new InetSocketAddress(hostname, port)); |
| } |
| catch (NumberFormatException nfe) { |
| LOG.warn("Workflow notification couldn't parse configured proxy's port " + portConf |
| + ". Not going to use a proxy"); |
| } |
| } |
| return Proxy.NO_PROXY; |
| } |
| |
| protected void handleRetry() { |
| if (retries < MAX_RETRIES) { |
| retries++; |
| this.resetUsed(); |
| queue(this, 60 * 1000); |
| } |
| else { |
| LOG.warn(XLog.OPS, "could not send notification [{0}]", url); |
| } |
| } |
| |
| protected void sendNotification() { |
| if (url != null) { |
| Proxy proxy = getProxy(proxyConf); |
| try { |
| LOG.debug("Trying to send notification to [{0}] for the [{1}] time out of total [{2}]", |
| url, retries, MAX_RETRIES); |
| URL url = new URL(this.url); |
| HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(proxy); |
| int timeout = getTimeOut(); |
| urlConn.setConnectTimeout(timeout); |
| urlConn.setReadTimeout(timeout); |
| LOG.debug("Setting connection timeout and read timeout to [{0}] ms", timeout); |
| int responseCode = urlConn.getResponseCode(); |
| if (responseCode != HttpURLConnection.HTTP_OK) { |
| LOG.warn("Notification sending to URL [{0}] failed. response code: [{1}], response message: [{2}]", |
| this.url, responseCode, urlConn.getResponseMessage()); |
| handleRetry(); |
| } else { |
| LOG.debug("Notification sent to [{0}]", this.url); |
| } |
| } |
| catch (IOException ex) { |
| LOG.warn("Notification sending to URL [{0}] failed", url, ex); |
| handleRetry(); |
| } |
| } |
| else { |
| LOG.info("No Notification URL is defined. Therefore nothing to notify for job " + jobId); |
| |
| } |
| |
| } |
| |
| private int getTimeOut() { |
| return ConfigurationService.getInt(NOTIFICATION_URL_CONNECTION_TIMEOUT_KEY); |
| } |
| |
| public void setRetry(int retries) { |
| this.retries = retries; |
| |
| } |
| |
| } |