Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 org.apache.openejb.config; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.Option; import org.apache.commons.cli.OptionBuilder; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import org.apache.commons.cli.PosixParser; import org.apache.openejb.NoSuchApplicationException; import org.apache.openejb.UndeployException; import org.apache.openejb.assembler.Deployer; import org.apache.openejb.cli.SystemExitException; import org.apache.openejb.util.Messages; import org.apache.openejb.util.OpenEjbVersion; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.naming.ServiceUnavailableException; import java.io.File; import java.io.IOException; import java.util.Properties; import static org.apache.openejb.util.JarExtractor.delete; /** * UnDeploy EJB beans */ public class Undeploy { private static final Messages messages = new Messages(Undeploy.class); private static final String defaultServerUrl = "ejbd://localhost:4201"; public static void main(final String[] args) throws SystemExitException { final CommandLineParser parser = new PosixParser(); // create the Options final Options options = new Options(); options.addOption(Undeploy.option("v", "version", "cmd.deploy.opt.version")); options.addOption(Undeploy.option("h", "help", "cmd.undeploy.opt.help")); // TODO this message doesn't exist options.addOption(Undeploy.option("s", "server-url", "url", "cmd.deploy.opt.server")); CommandLine line = null; try { // parse the command line arguments line = parser.parse(options, args); } catch (final ParseException exp) { Undeploy.help(options); throw new SystemExitException(-1); } if (line.hasOption("help")) { Undeploy.help(options); return; } else if (line.hasOption("version")) { OpenEjbVersion.get().print(System.out); return; } if (line.getArgList().size() == 0) { System.out.println("Must specify an module id."); help(options); return; } final Properties p = new Properties(); p.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.client.RemoteInitialContextFactory"); final String serverUrl = line.getOptionValue("server-url", defaultServerUrl); p.put(Context.PROVIDER_URL, serverUrl); Deployer deployer = null; try { final InitialContext ctx = new InitialContext(p); deployer = (Deployer) ctx.lookup("openejb/DeployerBusinessRemote"); } catch (final ServiceUnavailableException e) { System.out.println(e.getCause().getMessage()); System.out.println(Undeploy.messages.format("cmd.deploy.serverOffline")); throw new SystemExitException(-1); } catch (final NamingException e) { System.out.println("DeployerEjb does not exist in server '" + serverUrl + "', check the server logs to ensure it exists and has not been removed."); throw new SystemExitException(-2); } int exitCode = 0; for (final Object obj : line.getArgList()) { final String moduleId = (String) obj; try { undeploy(moduleId, deployer); } catch (final DeploymentTerminatedException e) { System.out.println(e.getMessage()); exitCode++; } catch (final UndeployException e) { System.out.println(messages.format("cmd.undeploy.failed", moduleId)); e.printStackTrace(System.out); exitCode++; } catch (final NoSuchApplicationException e) { // TODO make this message System.out.println(messages.format("cmd.undeploy.noSuchModule", moduleId)); exitCode++; } } if (exitCode != 0) { throw new SystemExitException(exitCode); } } public static void undeploy(final String moduleId, final Deployer deployer) throws UndeployException, NoSuchApplicationException, DeploymentTerminatedException { // Treat moduleId as a file path, and see if there is a matching app to undeploy undeploy(moduleId, new File(moduleId), deployer); } public static void undeploy(String moduleId, File file, final Deployer deployer) throws UndeployException, NoSuchApplicationException, DeploymentTerminatedException { try { file = file.getCanonicalFile(); } catch (final IOException e) { // no-op } boolean undeployed = false; if (file != null) { final String path = file.getAbsolutePath(); try { deployer.undeploy(path); undeployed = true; moduleId = path; if (!delete(file)) { throw new DeploymentTerminatedException( messages.format("cmd.undeploy.cantDelete", file.getAbsolutePath())); } } catch (final NoSuchApplicationException e) { // no-op } } // If that didn't work, undeploy using just the moduleId if (!undeployed) { deployer.undeploy(moduleId); System.out.println(messages.format("cmd.undeploy.nothingToDelete", moduleId)); } // TODO make this message System.out.println(messages.format("cmd.undeploy.successful", moduleId)); } private static void help(final Options options) { final HelpFormatter formatter = new HelpFormatter(); formatter.printHelp("undeploy [options] <file> [<file>...]", "\n" + Undeploy.i18n("cmd.undeploy.description"), options, "\n"); } private static Option option(final String shortOpt, final String longOpt, final String description) { return OptionBuilder.withLongOpt(longOpt).withDescription(Undeploy.i18n(description)).create(shortOpt); } private static Option option(final String shortOpt, final String longOpt, final String argName, final String description) { return OptionBuilder.withLongOpt(longOpt).withArgName(argName).hasArg() .withDescription(Undeploy.i18n(description)).create(shortOpt); } private static String i18n(final String key) { return Undeploy.messages.format(key); } public static class DeploymentTerminatedException extends Deploy.DeploymentTerminatedException { private static final long serialVersionUID = 1L; public DeploymentTerminatedException(final String message) { super(message); } public DeploymentTerminatedException(final String message, final Throwable cause) { super(message, cause); } } }