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.shell.core.Constants; import org.apache.sqoop.shell.utils.LinkDynamicConfigOptions; import org.apache.sqoop.shell.utils.ConfigDisplayer; 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 CreateLinkFunction extends SqoopFunction { @SuppressWarnings("static-access") public CreateLinkFunction() { this.addOption(OptionBuilder.withDescription(resourceString(Constants.RES_CONNECTOR_ID)) .withLongOpt(Constants.OPT_CID).isRequired().hasArg().create(Constants.OPT_CID_CHAR)); } @Override @SuppressWarnings("unchecked") public Object executeFunction(CommandLine line, boolean isInteractive) throws IOException { return createLink(getLong(line, Constants.OPT_CID), line.getArgList(), isInteractive); } private Status createLink(long connectorId, List<String> args, boolean isInteractive) throws IOException { printlnResource(Constants.RES_CREATE_CREATING_LINK, connectorId); ConsoleReader reader = new ConsoleReader(); MLink link = client.createLink(connectorId); ResourceBundle connectorConfigBundle = client.getConnectorConfigBundle(connectorId); Status status = Status.OK; if (isInteractive) { printlnResource(Constants.RES_PROMPT_FILL_LINK_CONFIG); do { // Print error introduction if needed if (!status.canProceed()) { errorIntroduction(); } // Fill in data from user if (!fillLinkWithBundle(reader, link, connectorConfigBundle)) { return null; } // Try to create status = client.saveLink(link); } while (!status.canProceed()); } else { LinkDynamicConfigOptions options = new LinkDynamicConfigOptions(); options.prepareOptions(link); CommandLine line = ConfigOptions.parseOptions(options, 0, args, false); if (fillLink(line, link)) { status = client.saveLink(link); if (!status.canProceed()) { printLinkValidationMessages(link); return null; } } else { printLinkValidationMessages(link); return null; } } ConfigDisplayer.displayConfigWarning(link); printlnResource(Constants.RES_CREATE_LINK_SUCCESSFUL, status.name(), link.getPersistenceId()); return status; } }