Java tutorial
/******************************************************************************* * Copyright (c) 2008,2010 itemis AG (http://www.itemis.eu) and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributor: * Monami-ya LLC, Japan : Copied and modify to fit A-Workflow. *******************************************************************************/ package com.monami_ya.mwe2.launch.runtime; import java.util.HashMap; import java.util.Map; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import org.apache.commons.cli.PosixParser; import org.eclipse.core.runtime.OperationCanceledException; import org.eclipse.emf.common.util.URI; import org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher; import org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner; import com.google.inject.Injector; import com.monami_ya.mwe2.language.AWorkflowStandaloneSetup; public class AWorkflowLauncher extends Mwe2Launcher { private static final String PARAM = "p"; @Override public void run(String[] args) { Options options = getOptions(); final CommandLineParser parser = new PosixParser(); CommandLine line = null; try { line = parser.parse(options, args); if (line.getArgs().length == 0) throw new ParseException("No module name specified."); if (line.getArgs().length > 1) throw new ParseException("Only one module name expected. But " + line.getArgs().length + " were passed (" + line.getArgList() + ")"); String moduleName = line.getArgs()[0]; Map<String, String> params = new HashMap<String, String>(); String[] optionValues = line.getOptionValues(PARAM); if (optionValues != null) { for (String string : optionValues) { int index = string.indexOf('='); if (index == -1) { throw new ParseException( "Incorrect parameter syntax '" + string + "'. It should be 'name=value'"); } String name = string.substring(0, index); String value = string.substring(index + 1); if (params.put(name, value) != null) { throw new ParseException("Duplicate parameter '" + name + "'."); } } } // check OperationCanceledException is accessible OperationCanceledException.class.getName(); Injector injector = new AWorkflowStandaloneSetup().createInjectorAndDoEMFRegistration(); Mwe2Runner mweRunner = injector.getInstance(Mwe2Runner.class); if (moduleName.contains("/")) { mweRunner.run(URI.createURI(moduleName), params); } else { mweRunner.run(moduleName, params); } } catch (NoClassDefFoundError e) { if ("org/eclipse/core/runtime/OperationCanceledException".equals(e.getMessage())) { System.err.println("Could not load class: org.eclipse.core.runtime.OperationCanceledException"); System.err.println("Add org.eclipse.equinox.common to the class path."); } else { throw e; } } catch (final ParseException exp) { final HelpFormatter formatter = new HelpFormatter(); System.err.println("Parsing arguments failed. Reason: " + exp.getMessage()); formatter.printHelp("java " + AWorkflowLauncher.class.getName() + " some.mwe2.Module [options]\n", options); return; } } }