Java tutorial
/* * ProActive Parallel Suite(TM): * The Open Source library for parallel and distributed * Workflows & Scheduling, Orchestration, Cloud Automation * and Big Data Analysis on Enterprise Grids & Clouds. * * Copyright (c) 2007 - 2017 ActiveEon * Contact: contact@activeeon.com * * This library is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation: version 3 of * the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * If needed, contact us to obtain a release under GPL Version 2 or 3 * or a different license than the AGPL. */ package org.ow2.proactive.resourcemanager.utils; import java.io.File; import java.security.Policy; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.DefaultParser; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.Option; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import org.apache.log4j.Logger; import org.apache.log4j.PropertyConfigurator; import org.objectweb.proactive.core.config.CentralPAPropertyRepository; import org.objectweb.proactive.utils.JVMPropertiesPreloader; import org.ow2.proactive.authentication.crypto.Credentials; import org.ow2.proactive.resourcemanager.RMFactory; import org.ow2.proactive.resourcemanager.authentication.RMAuthentication; import org.ow2.proactive.resourcemanager.core.properties.PAResourceManagerProperties; import org.ow2.proactive.resourcemanager.frontend.ResourceManager; import org.ow2.proactive.resourcemanager.nodesource.NodeSource; import org.ow2.proactive.resourcemanager.nodesource.infrastructure.LocalInfrastructure; import org.ow2.proactive.resourcemanager.nodesource.policy.RestartDownNodesPolicy; import org.ow2.proactive.utils.FileToBytesConverter; /** * Class with main which instantiates a resource manager. * * @author The ProActive Team * @since ProActive Scheduling 0.9 */ public class RMStarter { private static Logger logger = Logger.getLogger(RMStarter.class); private static Options options = new Options(); public static final int DEFAULT_NODES_NUMBER = Math.max(2, Runtime.getRuntime().availableProcessors() - 1); private static final int DEFAULT_NODE_TIMEOUT = 30 * 1000; private static int nodeTimeout = DEFAULT_NODE_TIMEOUT; private static void initOptions() { Option help = new Option("h", "help", false, "to display this help"); help.setArgName("help"); help.setRequired(false); options.addOption(help); Option noDeploy = new Option("ln", "localNodes", false, "start the resource manager deploying default 4 local nodes"); noDeploy.setArgName("localNodes"); noDeploy.setRequired(false); options.addOption(noDeploy); Option nodeTimeout = new Option("t", "timeout", true, "Timeout used to start the nodes (only useful with local nodes, default: " + DEFAULT_NODE_TIMEOUT + "ms)"); nodeTimeout.setArgName("timeout"); nodeTimeout.setRequired(false); options.addOption(nodeTimeout); } private static void displayHelp() { logger.info(""); HelpFormatter hf = new HelpFormatter(); hf.setWidth(120); hf.printHelp("rm-start", options, true); logger.info("\n Notice : Without argument, the resource manager starts without any computing node."); System.exit(1); } public static void main(String[] args) { configureRMHome(); configureSecurityManager(); configureLogging(); args = JVMPropertiesPreloader.overrideJVMProperties(args); initOptions(); CommandLineParser parser = new DefaultParser(); CommandLine cmd; try { cmd = parser.parse(options, args); if (cmd.hasOption("h")) { displayHelp(); } logger.info("Starting the resource manager..."); RMFactory.setOsJavaProperty(); boolean localNodes = false; if (cmd.hasOption("localNodes")) { localNodes = true; if (cmd.hasOption("timeout")) { String timeout = cmd.getOptionValue("t"); try { nodeTimeout = Integer.parseInt(timeout); } catch (Exception e) { logger.error("Wrong value for timeout option: " + timeout, e); } } } // starting clean resource manager RMAuthentication auth = RMFactory.startLocal(); int defaultNodesNumber = PAResourceManagerProperties.RM_NB_LOCAL_NODES.getValueAsInt(); // -1 means that the number of local nodes depends of the number of cores in the local machine if (defaultNodesNumber == -1) { defaultNodesNumber = DEFAULT_NODES_NUMBER; } if (localNodes && defaultNodesNumber > 0) { ResourceManager resourceManager = auth.login(Credentials.getCredentials(PAResourceManagerProperties .getAbsolutePath(PAResourceManagerProperties.RM_CREDS.getValueAsString()))); String nodeSourceName = NodeSource.DEFAULT_LOCAL_NODES_NODE_SOURCE_NAME; //first im parameter is default rm url byte[] creds = FileToBytesConverter.convertFileToByteArray(new File(PAResourceManagerProperties .getAbsolutePath(PAResourceManagerProperties.RM_CREDS.getValueAsString()))); resourceManager.createNodeSource(nodeSourceName, LocalInfrastructure.class.getName(), new Object[] { creds, defaultNodesNumber, nodeTimeout, "" }, RestartDownNodesPolicy.class.getName(), null); resourceManager.disconnect(); logger.info("The resource manager with " + defaultNodesNumber + " local nodes created on " + auth.getHostURL()); } else { logger.info("The resource manager created on " + auth.getHostURL()); } } catch (ParseException e1) { displayHelp(); } catch (Exception e) { logger.error("", e); System.exit(3); } } private static void configureRMHome() { if (System.getProperty(PAResourceManagerProperties.RM_HOME.getKey()) == null) { System.setProperty(PAResourceManagerProperties.RM_HOME.getKey(), System.getProperty("user.dir")); } if (System.getProperty(CentralPAPropertyRepository.PA_HOME.getName()) == null) { System.setProperty(CentralPAPropertyRepository.PA_HOME.getName(), System.getProperty(PAResourceManagerProperties.RM_HOME.getKey())); } if (System.getProperty(CentralPAPropertyRepository.PA_CONFIGURATION_FILE.getName()) == null) { System.setProperty(CentralPAPropertyRepository.PA_CONFIGURATION_FILE.getName(), System.getProperty(PAResourceManagerProperties.RM_HOME.getKey()) + "/config/network/server.ini"); } } private static void configureSecurityManager() { if (System.getProperty("java.security.policy") == null) { System.setProperty("java.security.policy", System.getProperty(PAResourceManagerProperties.RM_HOME.getKey()) + "/config/security.java.policy-server"); Policy.getPolicy().refresh(); } } private static void configureLogging() { if (System.getProperty(CentralPAPropertyRepository.LOG4J.getName()) == null) { String defaultLog4jConfig = System.getProperty(PAResourceManagerProperties.RM_HOME.getKey()) + "/config/log/server.properties"; System.setProperty(CentralPAPropertyRepository.LOG4J.getName(), defaultLog4jConfig); PropertyConfigurator.configure(defaultLog4jConfig); } } }