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 jline.ConsoleReader; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.OptionBuilder; import org.apache.sqoop.model.MLink; import org.apache.sqoop.model.MPersistableEntity; import org.apache.sqoop.shell.core.Constants; import org.apache.sqoop.shell.utils.LinkDynamicConfigOptions; import org.apache.sqoop.shell.utils.ConfigOptions; import org.apache.sqoop.validation.Status; import java.io.IOException; import java.util.List; import java.util.ResourceBundle; import static org.apache.sqoop.shell.ShellEnvironment.*; import static org.apache.sqoop.shell.utils.ConfigFiller.*; /** * */ @SuppressWarnings("serial") public class CloneLinkFunction extends SqoopFunction { @SuppressWarnings("static-access") public CloneLinkFunction() { this.addOption(OptionBuilder.withDescription(resourceString(Constants.RES_PROMPT_LINK_ID)) .withLongOpt(Constants.OPT_LID).hasArg().isRequired().create(Constants.OPT_LID_CHAR)); } @Override @SuppressWarnings("unchecked") public Object executeFunction(CommandLine line, boolean isInteractive) throws IOException { return cloneLink(getLong(line, Constants.OPT_LID), line.getArgList(), isInteractive); } private Status cloneLink(Long connectionId, List<String> args, boolean isInteractive) throws IOException { printlnResource(Constants.RES_CLONE_CLONING_LINK, connectionId); ConsoleReader reader = new ConsoleReader(); MLink connection = client.getLink(connectionId); // Remove persistent id as we're making a clone connection.setPersistenceId(MPersistableEntity.PERSISTANCE_ID_DEFAULT); Status status = Status.OK; ResourceBundle linkConfigBundle = client.getConnectorConfigBundle(connection.getConnectorId()); if (isInteractive) { printlnResource(Constants.RES_PROMPT_UPDATE_LINK_CONFIG); do { // Print error introduction if needed if (!status.canProceed()) { errorIntroduction(); } // Fill in data from user if (!fillLinkWithBundle(reader, connection, linkConfigBundle)) { return null; } status = client.saveLink(connection); } while (!status.canProceed()); } else { LinkDynamicConfigOptions options = new LinkDynamicConfigOptions(); options.prepareOptions(connection); CommandLine line = ConfigOptions.parseOptions(options, 0, args, false); if (fillLink(line, connection)) { status = client.saveLink(connection); if (!status.canProceed()) { printLinkValidationMessages(connection); return null; } } else { printLinkValidationMessages(connection); return null; } } printlnResource(Constants.RES_CLONE_LINK_SUCCESSFUL, status.name(), connection.getPersistenceId()); return status; } }