Examples of Instrumentation

com.android.ide.common.xml.ManifestData.Instrumentation
com.cloudera.lib.service.Instrumentation
com.google.caliper.runner.Instrument.Instrumentation
java.lang.instrument.Instrumentation
This class provides services needed to instrument Java programming language code. Instrumentation is the addition of byte-codes to methods for the purpose of gathering data to be utilized by tools. Since the changes are purely additive, these tools do not modify application state or behavior. Examples of such benign tools include monitoring agents, profilers, coverage analyzers, and event loggers.
There are two ways to obtain an instance of the Instrumentation interface:
1. When a JVM is launched in a way that indicates an agent class. In that case an Instrumentation instance is passed to the premain method of the agent class.
2. When a JVM provides a mechanism to start agents sometime after the JVM is launched. In that case an Instrumentation instance is passed to the agentmain method of the agent code.
These mechanisms are described in the {@linkplain java.lang.instrument package specification}.
Once an agent acquires an Instrumentation instance, the agent may call methods on the instance at any time. @since 1.5
org.apache.hadoop.lib.service.Instrumentation
org.apache.oozie.util.Instrumentation
Instrumentation framework that supports Timers, Counters, Variables and Sampler instrumentation elements.
All instrumentation elements have a group and a name.
org.objectweb.celtix.management.Instrumentation
Basic interface for representing a Instrumented object.

Examples of java.lang.instrument.Instrumentation


    private static class PersistenceClassLoaderHandlerImpl implements PersistenceClassLoaderHandler {
        private final Map<String,List<ClassFileTransformer>> transformers = new TreeMap<String,List<ClassFileTransformer>>();


        public void addTransformer(String unitId, ClassLoader classLoader, ClassFileTransformer classFileTransformer) {
            Instrumentation instrumentation = Agent.getInstrumentation();
            if (instrumentation != null) {
                instrumentation.addTransformer(classFileTransformer);


                if (unitId != null) {
                    List<ClassFileTransformer> transformers = this.transformers.get(unitId);
                    if (transformers == null) {
                        transformers = new ArrayList<ClassFileTransformer>(1);

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Examples of java.lang.instrument.Instrumentation

        }


        public void destroy(String unitId) {
            List<ClassFileTransformer> transformers = this.transformers.remove(unitId);
            if (transformers != null) {
                Instrumentation instrumentation = Agent.getInstrumentation();
                if (instrumentation != null) {
                    for (ClassFileTransformer transformer : transformers) {
                        instrumentation.removeTransformer(transformer);
                    }
                } else {
                    logger.error("assembler.noAgent");
                }
            }

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Examples of org.apache.hadoop.lib.service.Instrumentation

        List<String> userGroups = groups.getGroups(user.getName());
        if (!userGroups.contains(HttpFSServerWebApp.get().getAdminGroup())) {
          throw new AccessControlException(
            "User not in HttpFSServer admin group");
        }
        Instrumentation instrumentation =
          HttpFSServerWebApp.get().get(Instrumentation.class);
        Map snapshot = instrumentation.getSnapshot();
        response = Response.ok(snapshot).build();
        break;
      }
      case GETCONTENTSUMMARY: {
        FSOperations.FSContentSummary command =

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Examples of org.apache.hadoop.lib.service.Instrumentation

  }


  @Override
  public void postInit() throws ServiceException {
    super.postInit();
    Instrumentation instrumentation = getServer().get(Instrumentation.class);
    instrumentation.addVariable(INSTRUMENTATION_GROUP, "unmanaged.fs", new Instrumentation.Variable<Integer>() {
      @Override
      public Integer getValue() {
        return unmanagedFileSystems.get();
      }
    });
    instrumentation.addSampler(INSTRUMENTATION_GROUP, "unmanaged.fs", 60, new Instrumentation.Variable<Long>() {
      @Override
      public Long getValue() {
        return (long) unmanagedFileSystems.get();
      }
    });

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Examples of org.apache.hadoop.lib.service.Instrumentation

      UserGroupInformation ugi = getUGI(user);
      return ugi.doAs(new PrivilegedExceptionAction<T>() {
        @Override
        public T run() throws Exception {
          FileSystem fs = createFileSystem(conf);
          Instrumentation instrumentation = getServer().get(Instrumentation.class);
          Instrumentation.Cron cron = instrumentation.createCron();
          try {
            checkNameNodeHealth(fs);
            cron.start();
            return executor.execute(fs);
          } finally {
            cron.stop();
            instrumentation.addCron(INSTRUMENTATION_GROUP, executor.getClass().getSimpleName(), cron);
            closeFileSystem(fs);
          }
        }
      });
    } catch (FileSystemAccessException ex) {

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Examples of org.apache.hadoop.lib.service.Instrumentation

        List<String> userGroups = groups.getGroups(user.getName());
        if (!userGroups.contains(HttpFSServerWebApp.get().getAdminGroup())) {
          throw new AccessControlException(
            "User not in HttpFSServer admin group");
        }
        Instrumentation instrumentation =
          HttpFSServerWebApp.get().get(Instrumentation.class);
        Map snapshot = instrumentation.getSnapshot();
        response = Response.ok(snapshot).build();
        break;
      }
      case GETCONTENTSUMMARY: {
        FSOperations.FSContentSummary command =

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Examples of org.apache.oozie.util.Instrumentation

     * Test : verify the PreconditionException is thrown when actionCheckDelay > 0
     *
     * @throws Exception
     */
    public void testActionCheckPreCondition1() throws Exception {
        Instrumentation inst = Services.get().get(InstrumentationService.class).get();


        WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.RUNNING, WorkflowInstance.Status.RUNNING);
        WorkflowActionBean action = this.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.PREP);


        ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId(), 10);


        Long counterVal = new Long(0);


        try {
            counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        } catch (NullPointerException e){
            //counter might be null
        }


        assertEquals(new Long(0), new Long(counterVal));


        checkCmd.call();


        //precondition failed because of actionCheckDelay > 0
        counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        assertEquals(new Long(1), new Long(counterVal));
    }

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Examples of org.apache.oozie.util.Instrumentation

     * Test : verify the PreconditionException is thrown when pending = false
     *
     * @throws Exception
     */
    public void testActionCheckPreCondition2() throws Exception {
        Instrumentation inst = Services.get().get(InstrumentationService.class).get();


        WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.RUNNING, WorkflowInstance.Status.RUNNING);
        WorkflowActionBean action = super.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.RUNNING);


        ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId());


        Long counterVal = new Long(0);


        try {
            counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        } catch (NullPointerException e){
            //counter might be null
        }


        assertEquals(new Long(0), new Long(counterVal));


        checkCmd.call();


        //precondition failed because of pending = false
        counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        assertEquals(new Long(1), new Long(counterVal));
    }

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Examples of org.apache.oozie.util.Instrumentation

     * Test : verify the PreconditionException is thrown when action != RUNNING
     *
     * @throws Exception
     */
    public void testActionCheckPreCondition3() throws Exception {
        Instrumentation inst = Services.get().get(InstrumentationService.class).get();


        WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.RUNNING, WorkflowInstance.Status.RUNNING);
        WorkflowActionBean action = this.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.PREP);


        ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId());


        Long counterVal = new Long(0);


        try{
            counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        } catch (NullPointerException e){
            //counter might be null
        }


        assertEquals(new Long(0), new Long(counterVal));


        checkCmd.call();


        //precondition failed because of action != RUNNING
        counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        assertEquals(new Long(1), new Long(counterVal));
    }

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Examples of org.apache.oozie.util.Instrumentation

     * Test : verify the PreconditionException is thrown when job != RUNNING
     *
     * @throws Exception
     */
    public void testActionCheckPreCondition4() throws Exception {
        Instrumentation inst = Services.get().get(InstrumentationService.class).get();


        WorkflowJobBean job = this.addRecordToWfJobTable(WorkflowJob.Status.FAILED, WorkflowInstance.Status.FAILED);
        WorkflowActionBean action = this.addRecordToWfActionTable(job.getId(), "1", WorkflowAction.Status.PREP);


        ActionCheckXCommand checkCmd = new ActionCheckXCommand(action.getId());


        Long counterVal = new Long(0);


        try {
            counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        } catch (NullPointerException e){
            //counter might be null
        }


        assertEquals(new Long(0), new Long(counterVal));


        checkCmd.call();


        //precondition failed because of job != RUNNING
        counterVal = inst.getCounters().get(XCommand.INSTRUMENTATION_GROUP).get(checkCmd.getName() + ".preconditionfailed").getValue();
        assertEquals(new Long(1), new Long(counterVal));
    }

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