/
NotificationXCommand.java
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/
NotificationXCommand.java
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/**
* 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";
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 < 3) {
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 {
URL url = new URL(this.url);
HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(proxy);
urlConn.setConnectTimeout(getTimeOut());
urlConn.setReadTimeout(getTimeOut());
if (urlConn.getResponseCode() != HttpURLConnection.HTTP_OK) {
handleRetry();
}
}
catch (IOException 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;
}
}