How to use

isCanceled

method

in

org.pentaho.di.core.ProgressMonitorListener

@Override
public boolean isCanceled() {
 return monitor.isCanceled();
}

 public void export( ProgressMonitorListener monitor, List<RepositoryFile> files, OutputStreamWriter writer )
  throws KettleException {
  List<TransMeta> transformations = repository.loadTransformations( monitor, log, files, true );
  Iterator<TransMeta> transMetasIter = transformations.iterator();
  Iterator<RepositoryFile> filesIter = files.iterator();
  while ( ( monitor == null || !monitor.isCanceled() ) && transMetasIter.hasNext() ) {
   TransMeta trans = transMetasIter.next();
   setGlobalVariablesOfLogTablesNull( trans.getLogTables() );
   RepositoryFile file = filesIter.next();
   try {
    // Validate against the import rules first!
    if ( toExport( trans ) ) {
     writer.write( trans.getXML() + Const.CR );
    }
   } catch ( Exception ex ) {
    // if exception while writing one item is occurred logging it and continue looping
    log.logError( BaseMessages.getString( PKG, "PurRepositoryExporter.ERROR_SAVE_TRANSFORMATION",
      trans.getName(), file.getPath() ), ex ); //$NON-NLS-1$
   }
  }
 }
}

 public void export( ProgressMonitorListener monitor, List<RepositoryFile> files, OutputStreamWriter writer )
  throws KettleException {
  List<JobMeta> jobs = repository.loadJobs( monitor, log, files, true );
  Iterator<JobMeta> jobsMeta = jobs.iterator();
  Iterator<RepositoryFile> filesIter = files.iterator();
  while ( ( monitor == null || !monitor.isCanceled() ) && jobsMeta.hasNext() ) {
   JobMeta meta = jobsMeta.next();
   setGlobalVariablesOfLogTablesNull( meta.getLogTables() );
   RepositoryFile file = filesIter.next();
   try {
    // Validate against the import rules first!
    if ( toExport( meta ) ) {
     writer.write( meta.getXML() + Const.CR );
    }
   } catch ( Exception ex ) {
    // if exception while writing one item is occurred logging it and continue looping
    log.logError( BaseMessages.getString( PKG, "PurRepositoryExporter.ERROR_SAVE_JOB", meta.getName(), file
      .getPath() ), ex ); //$NON-NLS-1$
   }
  }
 }
}

Iterator<NodeRepositoryFileData> filesDataIter = filesData.iterator();
Iterator<VersionSummary> versionsIter = versions.iterator();
while ( ( monitor == null || !monitor.isCanceled() ) && filesIter.hasNext() ) {
 RepositoryFile file = filesIter.next();
 NodeRepositoryFileData fileData = filesDataIter.next();

List<RepositoryFile> files = new ArrayList<RepositoryFile>();
while ( ( monitor == null || !monitor.isCanceled() ) && repObjIter.hasNext() ) {
 RepositoryFileTree repObj = repObjIter.next();
 if ( repObj.getFile().isFolder() ) {
 for ( int i = 0; ( monitor == null || !monitor.isCanceled() ) && i < files.size(); i += batchSize ) {
  int start = i;
  int end = Math.min( i + batchSize, files.size() );
while ( ( monitor == null || !monitor.isCanceled() ) && subdirIter.hasNext() ) {
 export( monitor, subdirIter.next(), writer, exporter );

Iterator<NodeRepositoryFileData> filesDataIter = filesData.iterator();
Iterator<VersionSummary> versionsIter = versions.iterator();
while ( ( monitor == null || !monitor.isCanceled() ) && filesIter.hasNext() ) {
 RepositoryFile file = filesIter.next();
 NodeRepositoryFileData fileData = filesDataIter.next();

 monitor.worked( 1 );
if ( monitor != null && monitor.isCanceled() ) {
 break;

if ( monitor != null ) {
 monitor.worked( 1 ); // progress bar...
 if ( monitor.isCanceled() ) {
  stop_checking = true;

if ( monitor != null && monitor.isCanceled() ) {
 return;
if ( monitor != null && monitor.isCanceled() ) {
 return;
if ( monitor != null && monitor.isCanceled() ) {
 return;
if ( monitor != null && monitor.isCanceled() ) {
 return;
if ( monitor != null && monitor.isCanceled() ) {
 return;
if ( monitor != null && monitor.isCanceled() ) {
 return;
if ( monitor != null && monitor.isCanceled() ) {
 return;

  if ( monitor.isCanceled() ) {
   stop_checking = true;
if ( monitor == null || !monitor.isCanceled() ) {
 if ( monitor != null ) {
  monitor.subTask( BaseMessages.getString( PKG, "TransMeta.Monitor.CheckingTheLoggingTableTask.Title" ) );

stop = monitor.isCanceled();

if ( monitor != null && monitor.isCanceled() ) {
 throw new KettleDatabaseException();
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );
 if ( monitor != null && monitor.isCanceled() ) {
  throw new KettleDatabaseException( BaseMessages.getString( PKG, "TransMeta.Log.UserCancelledTransSave" ) );