/*
* Copyright 2012 LinkedIn Corp.
*
* Licensed 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 azkaban.jobExecutor;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import azkaban.project.DirectoryFlowLoader;
import azkaban.server.AzkabanServer;
import azkaban.utils.Pair;
import azkaban.utils.Props;
import azkaban.utils.Utils;
public class JavaProcessJob extends ProcessJob {
public static final String CLASSPATH = "classpath";
public static final String GLOBAL_CLASSPATH = "global.classpaths";
public static final String JAVA_CLASS = "java.class";
public static final String INITIAL_MEMORY_SIZE = "Xms";
public static final String MAX_MEMORY_SIZE = "Xmx";
public static final String MAIN_ARGS = "main.args";
public static final String JVM_PARAMS = "jvm.args";
public static final String GLOBAL_JVM_PARAMS = "global.jvm.args";
public static final String DEFAULT_INITIAL_MEMORY_SIZE = "64M";
public static final String DEFAULT_MAX_MEMORY_SIZE = "256M";
public static String JAVA_COMMAND = "java";
public JavaProcessJob(String jobid, Props sysProps, Props jobProps,
Logger logger) {
super(jobid, sysProps, jobProps, logger);
}
@Override
protected List<String> getCommandList() {
ArrayList<String> list = new ArrayList<String>();
list.add(createCommandLine());
return list;
}
protected String createCommandLine() {
String command = JAVA_COMMAND + " ";
command += getJVMArguments() + " ";
command += "-Xms" + getInitialMemorySize() + " ";
command += "-Xmx" + getMaxMemorySize() + " ";
command += "-cp " + createArguments(getClassPaths(), ":") + " ";
command += getJavaClass() + " ";
command += getMainArguments();
return command;
}
protected String getJavaClass() {
return getJobProps().getString(JAVA_CLASS);
}
protected String getClassPathParam() {
List<String> classPath = getClassPaths();
if (classPath == null || classPath.size() == 0) {
return "";
}
return "-cp " + createArguments(classPath, ":") + " ";
}
protected List<String> getClassPaths() {
List<String> classPaths = getJobProps().getStringList(CLASSPATH, null, ",");
ArrayList<String> classpathList = new ArrayList<String>();
// Adding global properties used system wide.
if (getJobProps().containsKey(GLOBAL_CLASSPATH)) {
List<String> globalClasspath =
getJobProps().getStringList(GLOBAL_CLASSPATH);
for (String global : globalClasspath) {
getLog().info("Adding to global classpath:" + global);
classpathList.add(global);
}
}
if (classPaths == null) {
File path = new File(getPath());
// File parent = path.getParentFile();
getLog().info(
"No classpath specified. Trying to load classes from " + path);
if (path != null) {
for (File file : path.listFiles()) {
if (file.getName().endsWith(".jar")) {
// log.info("Adding to classpath:" + file.getName());
classpathList.add(file.getName());
}
}
}
} else {
classpathList.addAll(classPaths);
}
return classpathList;
}
protected String getInitialMemorySize() {
return getJobProps().getString(INITIAL_MEMORY_SIZE,
DEFAULT_INITIAL_MEMORY_SIZE);
}
protected String getMaxMemorySize() {
return getJobProps().getString(MAX_MEMORY_SIZE, DEFAULT_MAX_MEMORY_SIZE);
}
protected String getMainArguments() {
return getJobProps().getString(MAIN_ARGS, "");
}
protected String getJVMArguments() {
String globalJVMArgs = getJobProps().getString(GLOBAL_JVM_PARAMS, null);
if (globalJVMArgs == null) {
return getJobProps().getString(JVM_PARAMS, "");
}
return globalJVMArgs + " " + getJobProps().getString(JVM_PARAMS, "");
}
protected String createArguments(List<String> arguments, String separator) {
if (arguments != null && arguments.size() > 0) {
String param = "";
for (String arg : arguments) {
param += arg + separator;
}
return param.substring(0, param.length() - 1);
}
return "";
}
@Override
protected Pair<Long, Long> getProcMemoryRequirement() throws Exception {
String strXms = getInitialMemorySize();
String strXmx = getMaxMemorySize();
long xms = Utils.parseMemString(strXms);
long xmx = Utils.parseMemString(strXmx);
Props azkabanProperties = AzkabanServer.getAzkabanProperties();
if (azkabanProperties != null) {
String maxXms = azkabanProperties.getString(DirectoryFlowLoader.JOB_MAX_XMS, DirectoryFlowLoader.MAX_XMS_DEFAULT);
String maxXmx = azkabanProperties.getString(DirectoryFlowLoader.JOB_MAX_XMX, DirectoryFlowLoader.MAX_XMX_DEFAULT);
long sizeMaxXms = Utils.parseMemString(maxXms);
long sizeMaxXmx = Utils.parseMemString(maxXmx);
if (xms > sizeMaxXms) {
throw new Exception(String.format("%s: Xms value has exceeded the allowed limit (max Xms = %s)",
getId(), maxXms));
}
if (xmx > sizeMaxXmx) {
throw new Exception(String.format("%s: Xmx value has exceeded the allowed limit (max Xmx = %s)",
getId(), maxXmx));
}
}
return new Pair<Long, Long>(xms, xmx);
}
}