Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2012 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2012 The OpenNMS Group, Inc. * * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc. * * OpenNMS(R) is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * OpenNMS(R) 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with OpenNMS(R). If not, see: * http://www.gnu.org/licenses/ * * For more information contact: * OpenNMS(R) Licensing <license@opennms.org> * http://www.opennms.org/ * http://www.opennms.com/ *******************************************************************************/ package org.opennms.jmxconfiggenerator; import java.io.BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.util.Collection; import java.util.HashMap; import java.util.Map; import java.util.Properties; import javax.management.MBeanServerConnection; import org.apache.commons.io.FileUtils; import org.kohsuke.args4j.CmdLineException; import org.kohsuke.args4j.CmdLineParser; import org.kohsuke.args4j.Option; import org.opennms.jmxconfiggenerator.graphs.GraphConfigGenerator; import org.opennms.jmxconfiggenerator.graphs.JmxConfigReader; import org.opennms.jmxconfiggenerator.graphs.Report; import org.opennms.jmxconfiggenerator.jmxconfig.JmxDatacollectionConfiggenerator; import org.opennms.xmlns.xsd.config.jmx_datacollection.JmxDatacollectionConfig; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * @author Simon Walter <simon.walter@hp-factory.de> * @author Markus Neumann <markus@opennms.com> */ public class Starter { private static Logger logger = LoggerFactory.getLogger(Starter.class); @Option(name = "-jmx", usage = "Generate jmx-datacollection.xml by reading JMX over RMI") private boolean jmx = false; @Option(name = "-service", usage = "Your optional service-name. Like cassandra, jboss, tomcat") private String serviceName = "anyservice"; @Option(name = "-host", usage = "Hostname or IP-Adress of JMX-RMI host") private String hostName; @Option(name = "-username", usage = "Username for JMX-RMI Authentication") private String username; @Option(name = "-password", usage = "Password for JMX-RMI Authentication") private String password; @Option(name = "-port", usage = "Port of JMX-RMI service") private String port; @Option(name = "-jmxmp", usage = "Use JMXMP and not JMX-RMI") private boolean jmxmp = false; // @Option(name = "-ssl", usage = "Use SSL for the connection") private boolean ssl = false; @Option(name = "-skipDefaultVM", usage = "set to process default JavaVM Beans.") private boolean skipDefaultVM = false; @Option(name = "-runWritableMBeans", usage = "include MBeans that are read- and writable.") private boolean runWritableMBeans = false; @Option(name = "-graph", usage = "Generate snmp-graph.properties linke file to out, by reading jmx-datacollection.xml like file from input") private boolean graph = false; @Option(name = "-input", usage = "Jmx-datacolletion.xml like file to parse") private String inputFile; @Option(name = "-out", usage = "File to write generated snmp-graph.properties linke content") private String outFile; @Option(name = "-template", usage = "Template file for SnmpGraphs") private String templateFile; @Option(name = "-dictionary", usage = "Dictionary properties file for replacing attribute names and parts of this names") private String dictionaryFile; private Map<String, String> dictionary = new HashMap<String, String>(); public static void main(String[] args) throws IOException { new Starter().doMain(args); } public void doMain(String[] args) { CmdLineParser parser = new CmdLineParser(this); parser.setUsageWidth(80); try { parser.parseArgument(args); if (jmx && graph) { throw new CmdLineException(parser, "jmx and graph is set. Just use one at a time."); } if (!jmx && !graph) { throw new CmdLineException(parser, "set jmx or graph."); } if (jmx && hostName != null && port != null && outFile != null) { dictionary = loadInternalDictionary(); if (dictionaryFile != null) { dictionary = loadExtermalDictionary(dictionaryFile); } JmxDatacollectionConfiggenerator jmxConfigGenerator = new JmxDatacollectionConfiggenerator(); MBeanServerConnection mBeanServerConnection = jmxConfigGenerator .createMBeanServerConnection(hostName, port, username, password, ssl, jmxmp); JmxDatacollectionConfig generateJmxConfigModel = jmxConfigGenerator.generateJmxConfigModel( mBeanServerConnection, serviceName, !skipDefaultVM, runWritableMBeans, dictionary); jmxConfigGenerator.writeJmxConfigFile(generateJmxConfigModel, outFile); return; } if (graph && inputFile != null && outFile != null) { JmxConfigReader jmxToSnmpGraphConfigGen = new JmxConfigReader(); Collection<Report> reports = jmxToSnmpGraphConfigGen .generateReportsByJmxDatacollectionConfig(inputFile); GraphConfigGenerator graphConfigGenerator = new GraphConfigGenerator(); String snmpGraphConfig; if (templateFile != null) { snmpGraphConfig = graphConfigGenerator.generateSnmpGraph(reports, templateFile); } else { snmpGraphConfig = graphConfigGenerator.generateSnmpGraph(reports); } System.out.println(snmpGraphConfig); FileUtils.writeStringToFile(new File(outFile), snmpGraphConfig, "UTF-8"); return; } throw new CmdLineException(parser, "no valid call found."); } catch (Exception e) { System.err.println(e.getMessage()); System.err.println("JmxConfigGenerator [options...] arguments..."); parser.printUsage(System.err); System.err.println(); // System.err.println(" Example: java -jar JmxConfigGenerator" + // parser.printExample(ALL)); System.err.println("Examples:"); System.err.println( " Generation of jmx-datacollection.xml: java -jar JmxConfigGenerator.jar -jmx -host localhost -port 7199 -out JMX-DatacollectionDummy.xml [-service cassandra] [-skipDefaultVM] [-runWritableMBeans] [-dictionary dictionary.properties]"); System.err.println( " Generation of snmp-graph.properties: java -jar JmxConfigGenerator.jar -graph -input test.xml -out test.properies [-template graphTemplate.vm] [-service cassandra]"); } } private Map<String, String> loadInternalDictionary() { Map<String, String> internalDictionary = new HashMap<String, String>(); Properties properties = new Properties(); try { BufferedInputStream stream = new BufferedInputStream( Starter.class.getClassLoader().getResourceAsStream("dictionary.properties")); properties.load(stream); stream.close(); } catch (IOException ex) { logger.error("Load dictionary entires from internal properties files error: '{}'", ex.getMessage()); } logger.info("Loaded '{}' internal dictionary entiers", properties.size()); for (Object key : properties.keySet()) { internalDictionary.put(key.toString(), properties.get(key).toString()); } logger.info("Dictionary entries loaded: '{}'", internalDictionary.size()); return internalDictionary; } private Map<String, String> loadExtermalDictionary(String dictionaryFile) { Map<String, String> externalDictionary = new HashMap<String, String>(); Properties properties = new Properties(); try { BufferedInputStream stream = new BufferedInputStream(new FileInputStream(dictionaryFile)); properties.load(stream); stream.close(); } catch (FileNotFoundException ex) { logger.error("'{}'", ex.getMessage()); } catch (IOException ex) { logger.error("'{}'", ex.getMessage()); } logger.info("Loaded '{}' external dictionary entiers from '{}'", properties.size(), dictionaryFile); for (Object key : properties.keySet()) { externalDictionary.put(key.toString(), properties.get(key).toString()); } logger.info("Dictionary entries loaded: '{}'", externalDictionary.size()); return externalDictionary; } }