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.common.Direction; import org.apache.sqoop.model.MJob; import org.apache.sqoop.shell.core.Constants; import org.apache.sqoop.shell.utils.ConfigDisplayer; import org.apache.sqoop.shell.utils.ConfigOptions; import org.apache.sqoop.shell.utils.JobDynamicConfigOptions; 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.*; /** * Handles creation of new job objects. */ @SuppressWarnings("serial") public class CreateJobFunction extends SqoopFunction { @SuppressWarnings("static-access") public CreateJobFunction() { this.addOption(OptionBuilder.withDescription(resourceString(Constants.RES_PROMPT_LINK_ID)) .withLongOpt(Constants.OPT_FROM).isRequired().hasArg().create(Constants.OPT_FROM_CHAR)); this.addOption(OptionBuilder.withDescription(resourceString(Constants.RES_PROMPT_LINK_ID)) .withLongOpt(Constants.OPT_TO).isRequired().hasArg().create(Constants.OPT_TO_CHAR)); } @Override @SuppressWarnings("unchecked") public Object executeFunction(CommandLine line, boolean isInteractive) throws IOException { return createJob(getLong(line, Constants.OPT_FROM), getLong(line, Constants.OPT_TO), line.getArgList(), isInteractive); } private Status createJob(Long fromLinkId, Long toLinkId, List<String> args, boolean isInteractive) throws IOException { printlnResource(Constants.RES_CREATE_CREATING_JOB, fromLinkId, toLinkId); ConsoleReader reader = new ConsoleReader(); MJob job = client.createJob(fromLinkId, toLinkId); ResourceBundle fromConfigBundle = client.getConnectorConfigBundle(job.getConnectorId(Direction.FROM)); ResourceBundle toConfigBundle = client.getConnectorConfigBundle(job.getConnectorId(Direction.TO)); ResourceBundle driverConfigBundle = client.getDriverConfigBundle(); Status status = Status.OK; if (isInteractive) { printlnResource(Constants.RES_PROMPT_FILL_JOB_CONFIG); do { // Print error introduction if needed if (!status.canProceed()) { errorIntroduction(); } // Fill in data from user if (!fillJobWithBundle(reader, job, fromConfigBundle, toConfigBundle, driverConfigBundle)) { return null; } // Try to create status = client.saveJob(job); } while (!status.canProceed()); } else { JobDynamicConfigOptions options = new JobDynamicConfigOptions(); options.prepareOptions(job); CommandLine line = ConfigOptions.parseOptions(options, 0, args, false); if (fillJob(line, job)) { status = client.saveJob(job); if (!status.canProceed()) { printJobValidationMessages(job); return null; } } else { printJobValidationMessages(job); return null; } } ConfigDisplayer.displayConfigWarning(job); printlnResource(Constants.RES_CREATE_JOB_SUCCESSFUL, status.name(), job.getPersistenceId()); return status; } }