[Major] Removed MainStarter.java as never used
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/*
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* Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package li.strolch.runtime.main;
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import java.io.File;
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import java.io.InputStream;
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import java.text.MessageFormat;
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import java.util.Properties;
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import java.util.concurrent.atomic.AtomicBoolean;
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import org.apache.commons.cli.CommandLine;
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import org.apache.commons.cli.CommandLineParser;
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import org.apache.commons.cli.DefaultParser;
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import org.apache.commons.cli.HelpFormatter;
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import org.apache.commons.cli.Option;
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import org.apache.commons.cli.Options;
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import org.apache.commons.cli.ParseException;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import li.strolch.agent.api.StrolchAgent;
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import li.strolch.agent.api.StrolchBootstrapper;
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import li.strolch.agent.api.StrolchVersion;
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import li.strolch.utils.dbc.DBC;
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import li.strolch.utils.helper.StringHelper;
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/**
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* @author Robert von Burg <eitch@eitchnet.ch>
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*/
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@SuppressWarnings("nls")
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public class MainStarter {
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private static final Logger logger = LoggerFactory.getLogger(MainStarter.class);
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private static final String OPT_ROOT_PATH = "root-path";
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private static final String OPT_ENV = "env";
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private Options options;
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private String env;
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private File pathF;
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private StrolchAgent agent;
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private StrolchVersion appVersion;
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/**
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* @param appVersion
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* See {@link StrolchBootstrapper#StrolchBootstrapper(StrolchVersion)}
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*/
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public MainStarter(StrolchVersion appVersion) {
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DBC.PRE.assertNotNull("appVersion must be set!", appVersion);
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this.appVersion = appVersion;
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configureOptions();
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}
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/**
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* @param appClass
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* See {@link StrolchBootstrapper#StrolchBootstrapper(Class)}
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*/
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public MainStarter(Class<?> appClass) {
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DBC.PRE.assertNotNull("appClass must be set!", appClass);
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Properties env = new Properties();
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try (InputStream in = appClass.getResourceAsStream(StrolchBootstrapper.APP_VERSION_PROPERTIES)) {
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env.load(in);
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} catch (Exception e) {
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throw new IllegalArgumentException("Could not find resource " + StrolchBootstrapper.APP_VERSION_PROPERTIES
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+ " on ClassLoader of class " + appClass);
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}
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StrolchVersion appVersion = new StrolchVersion(env);
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this.appVersion = appVersion;
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configureOptions();
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}
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private void configureOptions() {
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Options op = new Options();
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Option rootPathOption = new Option("p", OPT_ROOT_PATH, true, "root path to strolch runtime");
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rootPathOption.setOptionalArg(false);
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rootPathOption.setRequired(true);
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op.addOption(rootPathOption);
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Option envOption = new Option("e", OPT_ENV, true, "environment to load from configuration file");
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envOption.setOptionalArg(false);
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envOption.setRequired(true);
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op.addOption(envOption);
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this.options = op;
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}
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public int start(String[] args) {
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int ret = parseArgs(args);
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if (ret != 0)
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return ret;
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setup();
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initialize();
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start();
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return keepAlive();
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}
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public int parseArgs(String[] args) {
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// create the parser
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CommandLineParser parser = new DefaultParser();
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CommandLine line;
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try {
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// parse the command line arguments
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line = parser.parse(this.options, args);
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} catch (ParseException exp) {
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// oops, something went wrong
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logger.error("Parsing failed. Reason: " + exp.getMessage());
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printUsage();
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return 1;
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}
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this.env = line.getOptionValue(OPT_ENV);
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if (StringHelper.isEmpty(this.env)) {
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logger.error("env argument is missing!");
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printUsage();
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return 1;
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}
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String pathS = line.getOptionValue(OPT_ROOT_PATH);
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this.pathF = new File(pathS);
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if (!this.pathF.exists()) {
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logger.error(MessageFormat.format("Path parameter does not exist at: {0}", pathS));
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printUsage();
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return 1;
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}
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return 0;
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}
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public void setup() {
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this.agent = new StrolchBootstrapper(this.appVersion).setupByRoot(this.env, this.pathF);
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}
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public void initialize() {
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getAgent().initialize();
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}
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public void start() {
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getAgent().start();
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}
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public void stop() {
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getAgent().stop();
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}
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public void destroy() {
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getAgent().destroy();
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}
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public int keepAlive() {
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final AtomicBoolean atomicBoolean = new AtomicBoolean();
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Runtime.getRuntime().addShutdownHook(new Thread() {
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@Override
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public void run() {
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synchronized (MainStarter.class) {
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System.out.println("VM Shutting down. Stopping Strolch...");
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System.out.println("");
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System.out.println("Strolch application " + MainStarter.this.getAgent().getApplicationName()
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+ " shutting down...");
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MainStarter.this.getAgent().stop();
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MainStarter.this.getAgent().destroy();
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System.out.println("Strolch application " + MainStarter.this.getAgent().getApplicationName()
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+ " shut down. Exiting VM.");
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atomicBoolean.set(true);
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MainStarter.class.notify();
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}
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}
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});
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logger.info("");
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logger.info("Strolch application " + getAgent().getApplicationName() + " started ");
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while (!atomicBoolean.get()) {
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synchronized (MainStarter.class) {
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try {
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MainStarter.class.wait();
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} catch (InterruptedException e) {
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logger.error("Interrupted.");
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return 1;
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}
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}
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}
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return 0;
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}
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private void printUsage() {
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HelpFormatter formatter = new HelpFormatter();
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formatter.printHelp("java -classpath lib/ -jar <jar.containing.main.class>.jar <options>", this.options);
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}
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public StrolchAgent getAgent() {
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return this.agent;
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}
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}
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