| /** |
| * 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.oozie.tools.diag; |
| |
| import com.google.common.base.Preconditions; |
| import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; |
| import org.apache.commons.cli.CommandLine; |
| import org.apache.commons.cli.CommandLineParser; |
| import org.apache.commons.cli.GnuParser; |
| import org.apache.commons.cli.HelpFormatter; |
| import org.apache.commons.cli.Option; |
| import org.apache.commons.cli.Options; |
| import org.apache.commons.cli.ParseException; |
| import org.apache.oozie.cli.OozieCLI; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Objects; |
| |
| @SuppressFBWarnings(value = "PATH_TRAVERSAL_IN", justification = "Output directory is specified by user") |
| class ArgParser { |
| |
| private static final String OOZIE_OPTION = "oozie"; |
| private static final String NUM_WORKFLOWS_OPTION = "numworkflows"; |
| private static final String NUM_COORDS_OPTION = "numcoordinators"; |
| private static final String NUM_BUNDLES_OPTION = "numbundles"; |
| private static final String JOBS_OPTION = "jobs"; |
| private static final String MAX_CHILD_ACTIONS = "maxchildactions"; |
| private static final String OUTPUT_DIR_OPTION = "output"; |
| private final Options options = new Options(); |
| private CommandLine commandLine; |
| |
| public void setCommandLine(CommandLine commandLine) { |
| this.commandLine = commandLine; |
| } |
| |
| private void addNewOption(String optionName, String argName, String details, boolean required) { |
| addNewOption(optionName, argName, details, null, required, null, false); |
| } |
| |
| private void addNewOption(String optionName, String argName, String details, Class type, boolean required) { |
| addNewOption(optionName, argName, details, type, required, null, false); |
| } |
| |
| private void addNewOption(String optionName, String argName, String details, Class type, boolean required, |
| Character valueSeparator, boolean isUnlimited) { |
| final Option option = new Option(optionName, true, |
| details); |
| option.setRequired(required); |
| option.setArgName(argName); |
| if (type != null) { |
| option.setType(type); |
| } |
| if (valueSeparator != null) { |
| option.setValueSeparator(valueSeparator); |
| } |
| if (isUnlimited) { |
| option.setArgs(Option.UNLIMITED_VALUES); |
| } |
| options.addOption(option); |
| } |
| |
| Options setupOptions() { |
| addNewOption(OOZIE_OPTION, "url", String.format("Required: Oozie URL (or specify with %s env var)", |
| OozieCLI.ENV_OOZIE_URL), true); |
| |
| addNewOption(NUM_WORKFLOWS_OPTION, "n", |
| "Detailed information on the last n workflows will be collected (default: 0)", Integer.class, false); |
| |
| addNewOption(NUM_COORDS_OPTION, "n", |
| "Detailed information on the last n Coordinators will be collected (default: 0)", Integer.class, |
| false); |
| |
| addNewOption(NUM_BUNDLES_OPTION, "n", |
| "Detailed information on the last n Bundles will be collected (default: 0)", Integer.class, false); |
| |
| addNewOption(JOBS_OPTION, "id ...", |
| "Detailed information on the given job IDs will be collected (default: none)", null, false, |
| ',', true); |
| |
| addNewOption(MAX_CHILD_ACTIONS, "n", |
| "Maximum number of Workflow or Coordinator actions that will be collected (default: 10)", Integer.class, |
| false); |
| |
| addNewOption(OUTPUT_DIR_OPTION, "dir", "Required: Directory to output the zip file",true); |
| return options; |
| } |
| |
| File ensureOutputDir() throws IOException { |
| final String output = commandLine.getOptionValue(OUTPUT_DIR_OPTION); |
| Objects.requireNonNull(output, "output cannot be null"); |
| |
| final File outputDir = new File(output); |
| if (!outputDir.isDirectory() && !outputDir.mkdirs()) { |
| throw new IOException("Could not create output directory: " + outputDir.getAbsolutePath()); |
| } |
| return outputDir; |
| } |
| |
| Integer getMaxChildActions() { |
| final Integer maxChildActions = Integer.valueOf(commandLine.getOptionValue(MAX_CHILD_ACTIONS, "10")); |
| Preconditions.checkArgument(maxChildActions >= 0, |
| MAX_CHILD_ACTIONS + " cannot be negative"); |
| return maxChildActions; |
| } |
| |
| String[] getJobIds() { |
| return commandLine.getOptionValues(JOBS_OPTION); |
| } |
| |
| Integer getNumBundles() { |
| final Integer numBundles = Integer.valueOf(commandLine.getOptionValue(NUM_BUNDLES_OPTION, "0")); |
| Preconditions.checkArgument(numBundles >= 0, |
| NUM_BUNDLES_OPTION + " cannot be negative"); |
| return numBundles; |
| } |
| |
| Integer getNumCoordinators() { |
| final Integer numCoords = Integer.valueOf(commandLine.getOptionValue(NUM_COORDS_OPTION, "0")); |
| Preconditions.checkArgument(numCoords >= 0, |
| NUM_COORDS_OPTION + " cannot be negative"); |
| return numCoords; |
| } |
| |
| Integer getNumWorkflows() { |
| final Integer numWorkflows = Integer.valueOf(commandLine.getOptionValue(NUM_WORKFLOWS_OPTION, "0")); |
| Preconditions.checkArgument(numWorkflows >= 0, |
| NUM_WORKFLOWS_OPTION + " cannot be negative"); |
| return numWorkflows; |
| } |
| |
| String getOozieUrl() { |
| String url = commandLine.getOptionValue(OOZIE_OPTION); |
| if (url == null) { |
| url = System.getenv(OozieCLI.ENV_OOZIE_URL); |
| if (url == null) { |
| throw new IllegalArgumentException( |
| "Oozie URL is not available neither in command option or in the environment"); |
| } |
| } |
| return url; |
| } |
| |
| boolean parseCommandLineArguments(String[] args) { |
| final CommandLineParser parser = new GnuParser(); |
| final Options options = setupOptions(); |
| |
| try { |
| commandLine = parser.parse(options, args); |
| } catch (final ParseException pe) { |
| System.err.print("Error: " + pe.getMessage()); |
| System.err.println(); |
| final HelpFormatter formatter = new HelpFormatter(); |
| formatter.printHelp("DiagBundleCollectorDriver", |
| "A tool that collects a diagnostic bundle of information from Oozie", |
| options, "", true); |
| return false; |
| } |
| return true; |
| } |
| } |