Examples of org.eclipse.core.runtime.jobs.Job

org.eclipse.core.runtime.jobs.Job
Jobs are units of runnable work that can be scheduled to be run with the job manager. Once a job has completed, it can be scheduled to run again (jobs are reusable).
Jobs have a state that indicates what they are currently doing. When constructed, jobs start with a state value of NONE. When a job is scheduled to be run, it moves into the WAITING state. When a job starts running, it moves into the RUNNING state. When execution finishes (either normally or through cancelation), the state changes back to NONE.
A job can also be in the SLEEPING state. This happens if a user calls Job.sleep() on a waiting job, or if a job is scheduled to run after a specified delay. Only jobs in the WAITING state can be put to sleep. Sleeping jobs can be woken at any time using Job.wakeUp(), which will put the job back into the WAITING state.
Jobs can be assigned a priority that is used as a hint about how the job should be scheduled. There is no guarantee that jobs of one priority will be run before all jobs of lower priority. The javadoc for the various priority constants provide more detail about what each priority means. By default, jobs start in the LONG priority class. @see IJobManager @since 3.0

      }
      public void worked(int work) {
        monitor.worked(work);
      }
        };
        Job starting = new Job("starting") {
      protected IStatus run(IProgressMonitor monitor) {
            monitor.beginTask("Running export", jobs.length);
            for (int i=0; i<jobs.length; i++) {
              if (monitor.isCanceled()) {
                return Status.CANCEL_STATUS;
              }
                jobs[i].setProgressGroup(monitor, 1);
                jobs[i].schedule();
                try {
            jobs[i].join();
          } catch (InterruptedException e) {
            myUIFacade.showErrorDialog(e);
          }
            }
            Job finishing = new Job("finishing") {
          protected IStatus run(IProgressMonitor monitor) {
            monitor.done();
                finalizationJob.run((File[]) resultFiles.toArray(new File[0]));
            return Status.OK_STATUS;
          }
            };
            finishing.setProgressGroup(monitor, 0);
            finishing.schedule();
            try {
          finishing.join();
        } catch (InterruptedException e) {
          myUIFacade.showErrorDialog(e);
        }
        return Status.OK_STATUS;
      }

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    public String getFileNamePattern() {
        return "html";
    }


    protected Job[] createJobs(File outputFile, List resultFiles) {
        Job generateGanttChartJob = createGenerateGanttChartJob(outputFile, resultFiles);
        Job generateResourceChartJob = createGenerateResourceChartJob(outputFile, resultFiles);
        Job generatePagesJob = createGeneratePagesJob(outputFile, resultFiles);
        Job copyImagesJob = createCopyImagesJob(outputFile, resultFiles);
        return new Job[] {
                generateGanttChartJob, generateResourceChartJob, generatePagesJob, copyImagesJob
        };
    }

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                generateGanttChartJob, generateResourceChartJob, generatePagesJob, copyImagesJob
        };
    }
    
    private Job createGenerateGanttChartJob(final File outputFile, final List resultFiles) {
        Job result = new ExportJob("generate gantt chart") {
            protected IStatus run(IProgressMonitor monitor) {
                if (monitor.isCanceled()) {
                    Platform.getJobManager().cancel(ExporterBase.EXPORT_JOB_FAMILY);
                    return Status.CANCEL_STATUS;
                }

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        };
        return result;
    }
    
    private Job createGenerateResourceChartJob(final File outputFile, final List resultFiles) {
        Job result = new ExportJob("Generate resource chart") {
            protected IStatus run(IProgressMonitor monitor) {
                if (monitor.isCanceled()) {
                    Platform.getJobManager().cancel(ExporterBase.EXPORT_JOB_FAMILY);
                    return Status.CANCEL_STATUS;
                }

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        };
        return result;
    }
    
    private Job createGeneratePagesJob(final File outputFile, final List resultFiles) {
        Job result = new ExportJob("Generate HTML pages") {


            protected IStatus run(IProgressMonitor monitor) {
                if (monitor.isCanceled()) {
                    Platform.getJobManager().cancel(ExporterBase.EXPORT_JOB_FAMILY);
                    return Status.CANCEL_STATUS;

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        };
        return result;
    }
    
    private Job createCopyImagesJob(final File outputFile, final List resultFiles) {
        Job result = new ExportJob("Copying images") {
            protected IStatus run(IProgressMonitor monitor) {
                if (monitor.isCanceled()) {
                    Platform.getJobManager().cancel(ExporterBase.EXPORT_JOB_FAMILY);
                    return Status.CANCEL_STATUS;
                }

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    }


    public void run(final File[] exportFiles, final DocumentManager.FTPOptions options, UIFacade uiFacade) {
        IJobManager jobManager = Platform.getJobManager();
        IProgressMonitor monitor = jobManager.createProgressGroup();
          Job startingJob = new Job("starting") {
        protected IStatus run(IProgressMonitor monitor) {
          monitor.beginTask("Publishing files on FTP", exportFiles.length);
          try{
                final URL baseUrl = buildURL(options);
                if (baseUrl==null) {
                  throw new RuntimeException("Failed to discover your FTP settings. Please make sure that you specified server name and user name");
                }
                for (int i=0; i<exportFiles.length; i++) {
                    Job nextJob = createTransferJob(baseUrl, exportFiles[i]);
                    nextJob.setProgressGroup(monitor, 1);
                    nextJob.schedule();
                    nextJob.join();
                }
                Job finishingJob = new Job("finishing") {
            protected IStatus run(IProgressMonitor monitor) {
              monitor.done();
              return Status.OK_STATUS;
            }
                };
                finishingJob.setProgressGroup(monitor, 0);
                finishingJob.schedule();
                finishingJob.join();
          } catch (IOException e) {
            if (!GPLogger.log(e)) {
              e.printStackTrace(System.err);
            }
          } catch (InterruptedException e) {

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          startingJob.schedule();
    }


    private Job createTransferJob(URL baseUrl, final File file) throws IOException {
        final URL outUrl = new URL(baseUrl, file.getName());
        Job result = new Job("transfer file "+file.getName()) {
            protected IStatus run(IProgressMonitor monitor) {
                byte[] buffer = new byte[(int) file.length()];
                FileInputStream inputStream = null;
                OutputStream outStream = null;
                try {

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      startIndexing();
      
      // process deltas since last activated in indexer thread so that indexes are up-to-date.
      // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=38658
      Job processSavedState = new Job(Messages.savedState_jobName) { 
        protected IStatus run(IProgressMonitor monitor) {
          try {
            // add save participant and process delta atomically
            // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=59937
            workspace.run(
              new IWorkspaceRunnable() {
                public void run(IProgressMonitor progress) throws CoreException {
                  ISavedState savedState = workspace.addSaveParticipant(JavaCore.getJavaCore(), JavaModelManager.this);
                  if (savedState != null) {
                    // the event type coming from the saved state is always POST_AUTO_BUILD
                    // force it to be POST_CHANGE so that the delta processor can handle it
                    JavaModelManager.this.deltaState.getDeltaProcessor().overridenEventType = IResourceChangeEvent.POST_CHANGE;
                    savedState.processResourceChangeEvents(JavaModelManager.this.deltaState);
                  }
                }
              },
              monitor);
          } catch (CoreException e) {
            return e.getStatus();
          }
          return Status.OK_STATUS;
        }
      };
      processSavedState.setSystem(true);
      processSavedState.setPriority(Job.SHORT); // process asap
      processSavedState.schedule();
    } catch (RuntimeException e) {
      shutdown();
      throw e;
    }
  }

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          this.notifyAll(); // ensure its awake so it can be shutdown
        }
        // in case processing thread is handling a job
        thread.join();
      }
      Job job = this.progressJob;
      if (job != null) {
        job.cancel();
        job.join();
      }
    } catch (InterruptedException e) {
      // ignore
    }
  }

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