From fca260d0db997b83f8817eaddf2e64526a5db3b5 Mon Sep 17 00:00:00 2001 From: Vinod Kumar Vavilapalli Date: Sat, 8 Mar 2014 04:50:20 +0000 Subject: [PATCH] YARN-1787. Fixed help messages for applicationattempt and container sub-commands in bin/yarn. Contributed by Zhijie Shen. svn merge --ignore-ancestry -c 1575482 ../../trunk/ git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1575483 13f79535-47bb-0310-9956-ffa450edef68 --- hadoop-yarn-project/CHANGES.txt | 3 + .../yarn/client/cli/ApplicationCLI.java | 147 ++++++++-------- .../hadoop/yarn/client/cli/TestYarnCLI.java | 166 ++++++++++++++---- 3 files changed, 212 insertions(+), 104 deletions(-) diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt index 6e6c3e2186d..82c38048c26 100644 --- a/hadoop-yarn-project/CHANGES.txt +++ b/hadoop-yarn-project/CHANGES.txt @@ -413,6 +413,9 @@ Release 2.4.0 - UNRELEASED completed container statuses when NodeManager is forced to resync by the ResourceManager. (Jian He via vinodkv) + YARN-1787. Fixed help messages for applicationattempt and container + sub-commands in bin/yarn. (Zhijie Shen via vinodkv) + Release 2.3.1 - UNRELEASED INCOMPATIBLE CHANGES diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java index 79250680bba..c2c6c418e31 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java @@ -80,47 +80,59 @@ public class ApplicationCLI extends YarnCLI { @Override public int run(String[] args) throws Exception { - Options opts = new Options(); - opts.addOption(STATUS_CMD, true, - "Prints the status of the application."); - if (args.length > 0 - && args[0].compareToIgnoreCase(APPLICATION_ATTEMPT) == 0) { - opts.addOption(LIST_CMD, true, - "List application attempts for aplication from AHS. "); - } else if (args.length > 0 && args[0].compareToIgnoreCase("container") == 0) { - opts.addOption(LIST_CMD, true, - "List containers for application attempts from AHS. "); - } else { - opts.addOption(LIST_CMD, false, "List applications from the RM. " + String title = null; + if (args.length > 0 && args[0].equalsIgnoreCase(APPLICATION)) { + title = APPLICATION; + opts.addOption(STATUS_CMD, true, + "Prints the status of the application."); + opts.addOption(LIST_CMD, false, "List applications. " + "Supports optional use of -appTypes to filter applications " + "based on application type, " - + "and -appStates to filter applications based on application state"); + + "and -appStates to filter applications based on application state."); + opts.addOption(KILL_CMD, true, "Kills the application."); + opts.addOption(MOVE_TO_QUEUE_CMD, true, "Moves the application to a " + + "different queue."); + opts.addOption(QUEUE_CMD, true, "Works with the movetoqueue command to" + + " specify which queue to move an application to."); + opts.addOption(HELP_CMD, false, "Displays help for all commands."); + Option appTypeOpt = new Option(APP_TYPE_CMD, true, "Works with -list to " + + "filter applications based on " + + "input comma-separated list of application types."); + appTypeOpt.setValueSeparator(','); + appTypeOpt.setArgs(Option.UNLIMITED_VALUES); + appTypeOpt.setArgName("Types"); + opts.addOption(appTypeOpt); + Option appStateOpt = new Option(APP_STATE_CMD, true, "Works with -list " + + "to filter applications based on input comma-separated list of " + + "application states. " + getAllValidApplicationStates()); + appStateOpt.setValueSeparator(','); + appStateOpt.setArgs(Option.UNLIMITED_VALUES); + appStateOpt.setArgName("States"); + opts.addOption(appStateOpt); + opts.getOption(KILL_CMD).setArgName("Application ID"); + opts.getOption(MOVE_TO_QUEUE_CMD).setArgName("Application ID"); + opts.getOption(QUEUE_CMD).setArgName("Queue Name"); + opts.getOption(STATUS_CMD).setArgName("Application ID"); + } else if (args.length > 0 && args[0].equalsIgnoreCase(APPLICATION_ATTEMPT)) { + title = APPLICATION_ATTEMPT; + opts.addOption(STATUS_CMD, true, + "Prints the status of the application attempt."); + opts.addOption(LIST_CMD, true, + "List application attempts for aplication."); + opts.addOption(HELP_CMD, false, "Displays help for all commands."); + opts.getOption(STATUS_CMD).setArgName("Application Attempt ID"); + opts.getOption(LIST_CMD).setArgName("Application ID"); + } else if (args.length > 0 && args[0].equalsIgnoreCase(CONTAINER)) { + title = CONTAINER; + opts.addOption(STATUS_CMD, true, + "Prints the status of the container."); + opts.addOption(LIST_CMD, true, + "List containers for application attempt."); + opts.addOption(HELP_CMD, false, "Displays help for all commands."); + opts.getOption(STATUS_CMD).setArgName("Container ID"); + opts.getOption(LIST_CMD).setArgName("Application Attempt ID"); } - opts.addOption(KILL_CMD, true, "Kills the application."); - opts.addOption(MOVE_TO_QUEUE_CMD, true, "Moves the application to a " - + "different queue."); - opts.addOption(QUEUE_CMD, true, "Works with the movetoqueue command to" - + " specify which queue to move an application to."); - opts.addOption(HELP_CMD, false, "Displays help for all commands."); - Option appTypeOpt = new Option(APP_TYPE_CMD, true, "Works with -list to " - + "filter applications based on " - + "input comma-separated list of application types."); - appTypeOpt.setValueSeparator(','); - appTypeOpt.setArgs(Option.UNLIMITED_VALUES); - appTypeOpt.setArgName("Types"); - opts.addOption(appTypeOpt); - Option appStateOpt = new Option(APP_STATE_CMD, true, "Works with -list " - + "to filter applications based on input comma-separated list of " - + "application states. " + getAllValidApplicationStates()); - appStateOpt.setValueSeparator(','); - appStateOpt.setArgs(Option.UNLIMITED_VALUES); - appStateOpt.setArgName("States"); - opts.addOption(appStateOpt); - opts.getOption(KILL_CMD).setArgName("Application ID"); - opts.getOption(MOVE_TO_QUEUE_CMD).setArgName("Application ID"); - opts.getOption(QUEUE_CMD).setArgName("Queue Name"); - opts.getOption(STATUS_CMD).setArgName("Application ID"); int exitCode = -1; CommandLine cliParser = null; @@ -128,43 +140,24 @@ public class ApplicationCLI extends YarnCLI { cliParser = new GnuParser().parse(opts, args); } catch (MissingArgumentException ex) { sysout.println("Missing argument for options"); - printUsage(opts); + printUsage(title, opts); return exitCode; } if (cliParser.hasOption(STATUS_CMD)) { - if ((args[0].compareToIgnoreCase(APPLICATION) == 0) - || (args[0].compareToIgnoreCase(APPLICATION_ATTEMPT) == 0) - || (args[0].compareToIgnoreCase(CONTAINER) == 0)) { - if (args.length != 3) { - printUsage(opts); - return exitCode; - } - } else if (args.length != 2) { - printUsage(opts); + if (args.length != 3) { + printUsage(title, opts); return exitCode; } - if (args[0].compareToIgnoreCase(APPLICATION_ATTEMPT) == 0) { - printApplicationAttemptReport(cliParser.getOptionValue(STATUS_CMD)); - } else if (args[0].compareToIgnoreCase(CONTAINER) == 0) { - printContainerReport(cliParser.getOptionValue(STATUS_CMD)); - } else { + if (args[0].equalsIgnoreCase(APPLICATION)) { printApplicationReport(cliParser.getOptionValue(STATUS_CMD)); + } else if (args[0].equalsIgnoreCase(APPLICATION_ATTEMPT)) { + printApplicationAttemptReport(cliParser.getOptionValue(STATUS_CMD)); + } else if (args[0].equalsIgnoreCase(CONTAINER)) { + printContainerReport(cliParser.getOptionValue(STATUS_CMD)); } } else if (cliParser.hasOption(LIST_CMD)) { - if (args[0].compareToIgnoreCase(APPLICATION_ATTEMPT) == 0) { - if (args.length != 3) { - printUsage(opts); - return exitCode; - } - listApplicationAttempts(cliParser.getOptionValue(LIST_CMD)); - } else if (args[0].compareToIgnoreCase(CONTAINER) == 0) { - if (args.length != 3) { - printUsage(opts); - return exitCode; - } - listContainers(cliParser.getOptionValue(LIST_CMD)); - } else { + if (args[0].equalsIgnoreCase(APPLICATION)) { allAppStates = false; Set appTypes = new HashSet(); if (cliParser.hasOption(APP_TYPE_CMD)) { @@ -203,10 +196,22 @@ public class ApplicationCLI extends YarnCLI { } } listApplications(appTypes, appStates); + } else if (args[0].equalsIgnoreCase(APPLICATION_ATTEMPT)) { + if (args.length != 3) { + printUsage(title, opts); + return exitCode; + } + listApplicationAttempts(cliParser.getOptionValue(LIST_CMD)); + } else if (args[0].equalsIgnoreCase(CONTAINER)) { + if (args.length != 3) { + printUsage(title, opts); + return exitCode; + } + listContainers(cliParser.getOptionValue(LIST_CMD)); } } else if (cliParser.hasOption(KILL_CMD)) { if (args.length != 3) { - printUsage(opts); + printUsage(title, opts); return exitCode; } try{ @@ -216,17 +221,17 @@ public class ApplicationCLI extends YarnCLI { } } else if (cliParser.hasOption(MOVE_TO_QUEUE_CMD)) { if (!cliParser.hasOption(QUEUE_CMD)) { - printUsage(opts); + printUsage(title, opts); return exitCode; } moveApplicationAcrossQueues(cliParser.getOptionValue(MOVE_TO_QUEUE_CMD), cliParser.getOptionValue(QUEUE_CMD)); } else if (cliParser.hasOption(HELP_CMD)) { - printUsage(opts); + printUsage(title, opts); return 0; } else { syserr.println("Invalid Command Usage : "); - printUsage(opts); + printUsage(title, opts); } return 0; } @@ -237,8 +242,8 @@ public class ApplicationCLI extends YarnCLI { * @param opts */ @VisibleForTesting - void printUsage(Options opts) { - new HelpFormatter().printHelp("application", opts); + void printUsage(String title, Options opts) { + new HelpFormatter().printHelp(title, opts); } /** diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java index 384d77a48e2..1efb54c08c6 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java @@ -94,7 +94,7 @@ public class TestYarnCLI { FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null); when(client.getApplicationReport(any(ApplicationId.class))).thenReturn( newApplicationReport); - int result = cli.run(new String[] { "-status", applicationId.toString() }); + int result = cli.run(new String[] { "application", "-status", applicationId.toString() }); assertEquals(0, result); verify(client).getApplicationReport(applicationId); ByteArrayOutputStream baos = new ByteArrayOutputStream(); @@ -289,7 +289,7 @@ public class TestYarnCLI { new ApplicationNotFoundException("History file for application" + applicationId + " is not found")); try { - cli.run(new String[] { "-status", applicationId.toString() }); + cli.run(new String[] { "application", "-status", applicationId.toString() }); Assert.fail(); } catch (Exception ex) { Assert.assertTrue(ex instanceof ApplicationNotFoundException); @@ -368,7 +368,7 @@ public class TestYarnCLI { appState1.add(YarnApplicationState.SUBMITTED); when(client.getApplications(appType1, appState1)).thenReturn( getApplicationReports(applicationReports, appType1, appState1, false)); - int result = cli.run(new String[] { "-list" }); + int result = cli.run(new String[] { "application", "-list" }); assertEquals(0, result); verify(client).getApplications(appType1, appState1); @@ -423,8 +423,8 @@ public class TestYarnCLI { when(client.getApplications(appType2, appState2)).thenReturn( getApplicationReports(applicationReports, appType2, appState2, false)); result = - cli.run(new String[] { "-list", "-appTypes", "YARN, ,, NON-YARN", - " ,, ,," }); + cli.run(new String[] { "application", "-list", "-appTypes", + "YARN, ,, NON-YARN", " ,, ,," }); assertEquals(0, result); verify(client).getApplications(appType2, appState2); baos = new ByteArrayOutputStream(); @@ -458,8 +458,8 @@ public class TestYarnCLI { when(client.getApplications(appType3, appState3)).thenReturn( getApplicationReports(applicationReports, appType3, appState3, false)); result = - cli.run(new String[] { "-list", "--appStates", "FINISHED ,, , FAILED", - ",,FINISHED" }); + cli.run(new String[] { "application", "-list", "--appStates", + "FINISHED ,, , FAILED", ",,FINISHED" }); assertEquals(0, result); verify(client).getApplications(appType3, appState3); baos = new ByteArrayOutputStream(); @@ -501,8 +501,8 @@ public class TestYarnCLI { when(client.getApplications(appType4, appState4)).thenReturn( getApplicationReports(applicationReports, appType4, appState4, false)); result = - cli.run(new String[] { "-list", "--appTypes", "YARN,NON-YARN", - "--appStates", "FINISHED ,, , FAILED" }); + cli.run(new String[] { "application", "-list", "--appTypes", + "YARN,NON-YARN", "--appStates", "FINISHED ,, , FAILED" }); assertEquals(0, result); verify(client).getApplications(appType2, appState2); baos = new ByteArrayOutputStream(); @@ -527,7 +527,8 @@ public class TestYarnCLI { //Test command yarn application -list --appStates with invalid appStates sysOutStream.reset(); result = - cli.run(new String[] { "-list", "--appStates", "FINISHED ,, , INVALID" }); + cli.run(new String[] { "application", "-list", "--appStates", + "FINISHED ,, , INVALID" }); assertEquals(-1, result); baos = new ByteArrayOutputStream(); pw = new PrintWriter(baos); @@ -555,7 +556,8 @@ public class TestYarnCLI { when(client.getApplications(appType5, appState5)).thenReturn( getApplicationReports(applicationReports, appType5, appState5, true)); result = - cli.run(new String[] { "-list", "--appStates", "FINISHED ,, , ALL" }); + cli.run(new String[] { "application", "-list", "--appStates", + "FINISHED ,, , ALL" }); assertEquals(0, result); verify(client).getApplications(appType5, appState5); baos = new ByteArrayOutputStream(); @@ -614,8 +616,8 @@ public class TestYarnCLI { when(client.getApplications(appType6, appState6)).thenReturn( getApplicationReports(applicationReports, appType6, appState6, false)); result = - cli.run(new String[] { "-list", "-appTypes", "YARN, ,, NON-YARN", - "--appStates", "finished" }); + cli.run(new String[] { "application", "-list", "-appTypes", + "YARN, ,, NON-YARN", "--appStates", "finished" }); assertEquals(0, result); verify(client).getApplications(appType6, appState6); baos = new ByteArrayOutputStream(); @@ -672,28 +674,88 @@ public class TestYarnCLI { public void testAppsHelpCommand() throws Exception { ApplicationCLI cli = createAndGetAppCLI(); ApplicationCLI spyCli = spy(cli); - int result = spyCli.run(new String[] { "-help" }); + int result = spyCli.run(new String[] { "application", "-help" }); Assert.assertTrue(result == 0); - verify(spyCli).printUsage(any(Options.class)); + verify(spyCli).printUsage(any(String.class), any(Options.class)); Assert.assertEquals(createApplicationCLIHelpMessage(), sysOutStream.toString()); sysOutStream.reset(); ApplicationId applicationId = ApplicationId.newInstance(1234, 5); - result = - cli.run(new String[] {"application", "-kill", applicationId.toString(), "args" }); - verify(spyCli).printUsage(any(Options.class)); + result = cli.run( + new String[] {"application", "-kill", applicationId.toString(), "args" }); + verify(spyCli).printUsage(any(String.class), any(Options.class)); Assert.assertEquals(createApplicationCLIHelpMessage(), sysOutStream.toString()); sysOutStream.reset(); NodeId nodeId = NodeId.newInstance("host0", 0); - result = cli.run(new String[] { "-status", nodeId.toString(), "args" }); - verify(spyCli).printUsage(any(Options.class)); + result = cli.run( + new String[] { "application", "-status", nodeId.toString(), "args" }); + verify(spyCli).printUsage(any(String.class), any(Options.class)); Assert.assertEquals(createApplicationCLIHelpMessage(), sysOutStream.toString()); } + @Test (timeout = 10000) + public void testAppAttemptsHelpCommand() throws Exception { + ApplicationCLI cli = createAndGetAppCLI(); + ApplicationCLI spyCli = spy(cli); + int result = spyCli.run(new String[] { "applicationattempt", "-help" }); + Assert.assertTrue(result == 0); + verify(spyCli).printUsage(any(String.class), any(Options.class)); + Assert.assertEquals(createApplicationAttemptCLIHelpMessage(), + sysOutStream.toString()); + + sysOutStream.reset(); + ApplicationId applicationId = ApplicationId.newInstance(1234, 5); + result = cli.run( + new String[] {"applicationattempt", "-list", applicationId.toString(), + "args" }); + verify(spyCli).printUsage(any(String.class), any(Options.class)); + Assert.assertEquals(createApplicationAttemptCLIHelpMessage(), + sysOutStream.toString()); + + sysOutStream.reset(); + ApplicationAttemptId appAttemptId = + ApplicationAttemptId.newInstance(applicationId, 6); + result = cli.run( + new String[] { "applicationattempt", "-status", appAttemptId.toString(), + "args" }); + verify(spyCli).printUsage(any(String.class), any(Options.class)); + Assert.assertEquals(createApplicationAttemptCLIHelpMessage(), + sysOutStream.toString()); + } + + @Test (timeout = 10000) + public void testContainersHelpCommand() throws Exception { + ApplicationCLI cli = createAndGetAppCLI(); + ApplicationCLI spyCli = spy(cli); + int result = spyCli.run(new String[] { "container", "-help" }); + Assert.assertTrue(result == 0); + verify(spyCli).printUsage(any(String.class), any(Options.class)); + Assert.assertEquals(createContainerCLIHelpMessage(), + sysOutStream.toString()); + + sysOutStream.reset(); + ApplicationId applicationId = ApplicationId.newInstance(1234, 5); + ApplicationAttemptId appAttemptId = + ApplicationAttemptId.newInstance(applicationId, 6); + result = cli.run( + new String[] {"container", "-list", appAttemptId.toString(), "args" }); + verify(spyCli).printUsage(any(String.class), any(Options.class)); + Assert.assertEquals(createContainerCLIHelpMessage(), + sysOutStream.toString()); + + sysOutStream.reset(); + ContainerId containerId = ContainerId.newInstance(appAttemptId, 7); + result = cli.run( + new String[] { "container", "-status", containerId.toString(), "args" }); + verify(spyCli).printUsage(any(String.class), any(Options.class)); + Assert.assertEquals(createContainerCLIHelpMessage(), + sysOutStream.toString()); + } + @Test (timeout = 5000) public void testNodesHelpCommand() throws Exception { NodeCLI nodeCLI = new NodeCLI(); @@ -765,8 +827,8 @@ public class TestYarnCLI { FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null); when(client.getApplicationReport(any(ApplicationId.class))).thenReturn( newApplicationReport2); - int result = cli.run(new String[] { "-movetoqueue", applicationId.toString(), - "-queue", "targetqueue"}); + int result = cli.run(new String[] { "application", "-movetoqueue", + applicationId.toString(), "-queue", "targetqueue"}); assertEquals(0, result); verify(client, times(0)).moveApplicationAcrossQueues( any(ApplicationId.class), any(String.class)); @@ -780,8 +842,8 @@ public class TestYarnCLI { FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null); when(client.getApplicationReport(any(ApplicationId.class))).thenReturn( newApplicationReport); - result = cli.run(new String[] { "-movetoqueue", applicationId.toString(), - "-queue", "targetqueue"}); + result = cli.run(new String[] { "application", "-movetoqueue", + applicationId.toString(), "-queue", "targetqueue"}); assertEquals(0, result); verify(client).moveApplicationAcrossQueues(any(ApplicationId.class), any(String.class)); @@ -793,8 +855,8 @@ public class TestYarnCLI { .moveApplicationAcrossQueues(applicationId, "targetqueue"); cli = createAndGetAppCLI(); try { - result = cli.run(new String[] { "-movetoqueue", applicationId.toString(), - "-queue", "targetqueue"}); + result = cli.run(new String[] { "application", "-movetoqueue", + applicationId.toString(), "-queue", "targetqueue"}); Assert.fail(); } catch (Exception ex) { Assert.assertTrue(ex instanceof ApplicationNotFoundException); @@ -1095,11 +1157,23 @@ public class TestYarnCLI { @Test public void testMissingArguments() throws Exception { ApplicationCLI cli = createAndGetAppCLI(); - int result = cli.run(new String[] { "-status" }); + int result = cli.run(new String[] { "application", "-status" }); Assert.assertEquals(result, -1); Assert.assertEquals(String.format("Missing argument for options%n%1s", createApplicationCLIHelpMessage()), sysOutStream.toString()); + sysOutStream.reset(); + result = cli.run(new String[] { "applicationattempt", "-status" }); + Assert.assertEquals(result, -1); + Assert.assertEquals(String.format("Missing argument for options%n%1s", + createApplicationAttemptCLIHelpMessage()), sysOutStream.toString()); + + sysOutStream.reset(); + result = cli.run(new String[] { "container", "-status" }); + Assert.assertEquals(result, -1); + Assert.assertEquals(String.format("Missing argument for options%n%1s", + createContainerCLIHelpMessage()), sysOutStream.toString()); + sysOutStream.reset(); NodeCLI nodeCLI = new NodeCLI(); nodeCLI.setClient(client); @@ -1113,7 +1187,7 @@ public class TestYarnCLI { private void verifyUsageInfo(YarnCLI cli) throws Exception { cli.setSysErrPrintStream(sysErr); - cli.run(new String[0]); + cli.run(new String[] { "application" }); verify(sysErr).println("Invalid Command Usage : "); } @@ -1152,11 +1226,11 @@ public class TestYarnCLI { pw.println(" application types."); pw.println(" -help Displays help for all commands."); pw.println(" -kill Kills the application."); - pw.println(" -list List applications from the RM. Supports"); - pw.println(" optional use of -appTypes to filter"); - pw.println(" applications based on application type,"); - pw.println(" and -appStates to filter applications"); - pw.println(" based on application state"); + pw.println(" -list List applications. Supports optional use"); + pw.println(" of -appTypes to filter applications based"); + pw.println(" on application type, and -appStates to"); + pw.println(" filter applications based on application"); + pw.println(" state."); pw.println(" -movetoqueue Moves the application to a different"); pw.println(" queue."); pw.println(" -queue Works with the movetoqueue command to"); @@ -1168,6 +1242,32 @@ public class TestYarnCLI { return appsHelpStr; } + private String createApplicationAttemptCLIHelpMessage() throws IOException { + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + PrintWriter pw = new PrintWriter(baos); + pw.println("usage: applicationattempt"); + pw.println(" -help Displays help for all commands."); + pw.println(" -list List application attempts for"); + pw.println(" aplication."); + pw.println(" -status Prints the status of the application"); + pw.println(" attempt."); + pw.close(); + String appsHelpStr = baos.toString("UTF-8"); + return appsHelpStr; + } + + private String createContainerCLIHelpMessage() throws IOException { + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + PrintWriter pw = new PrintWriter(baos); + pw.println("usage: container"); + pw.println(" -help Displays help for all commands."); + pw.println(" -list List containers for application attempt."); + pw.println(" -status Prints the status of the container."); + pw.close(); + String appsHelpStr = baos.toString("UTF-8"); + return appsHelpStr; + } + private String createNodeCLIHelpMessage() throws IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); PrintWriter pw = new PrintWriter(baos);