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.sqoop.shell; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.OptionBuilder; import org.apache.sqoop.shell.core.Constants; import org.apache.sqoop.validation.Status; import static org.apache.sqoop.shell.ShellEnvironment.*; @SuppressWarnings("serial") public class ShowServerFunction extends SqoopFunction { @SuppressWarnings("static-access") public ShowServerFunction() { this.addOption(OptionBuilder.withDescription(resourceString(Constants.RES_SHOW_PROMPT_DISPLAY_ALL_SERVERS)) .withLongOpt(Constants.OPT_ALL).create(Constants.OPT_ALL_CHAR)); this.addOption(OptionBuilder.withDescription(resourceString(Constants.RES_SHOW_PROMPT_DISPLAY_SERVER_HOST)) .withLongOpt(Constants.OPT_HOST).create(Constants.OPT_HOST_CHAR)); this.addOption(OptionBuilder.withDescription(resourceString(Constants.RES_SHOW_PROMPT_DISPLAY_SERVER_PORT)) .withLongOpt(Constants.OPT_PORT).create(Constants.OPT_PORT_CHAR)); this.addOption( OptionBuilder.withDescription(resourceString(Constants.RES_SHOW_PROMPT_DISPLAY_SERVER_WEBAPP)) .withLongOpt(Constants.OPT_WEBAPP).create(Constants.OPT_WEBAPP_CHAR)); } @Override public boolean validateArgs(CommandLine line) { if (line.getArgs().length == 1) { printlnResource(Constants.RES_SHOW_SERVER_USAGE); return false; } return true; } @Override public Object executeFunction(CommandLine line, boolean isInteractive) { if (line.hasOption(Constants.OPT_ALL)) { showServer(true, true, true, true); } else { boolean host = false, port = false, webapp = false, version = false; if (line.hasOption(Constants.OPT_HOST)) { host = true; } if (line.hasOption(Constants.OPT_PORT)) { port = true; } if (line.hasOption(Constants.OPT_WEBAPP)) { webapp = true; } showServer(host, port, webapp, version); } return Status.OK; } private void showServer(boolean host, boolean port, boolean webapp, boolean version) { if (host) { printlnResource(Constants.RES_SHOW_PROMPT_SERVER_HOST, getServerHost()); } if (port) { printlnResource(Constants.RES_SHOW_PROMPT_SERVER_PORT, getServerPort()); } if (webapp) { printlnResource(Constants.RES_SHOW_PROMPT_SERVER_WEBAPP, getServerWebapp()); } } }