Examples of org.cishell.framework.algorithm.Algorithm

org.cishell.framework.algorithm.Algorithm
A class which executes some arbitrary code and optionally returns any data produced. What happens when the execute method is run is entirely up to the Algorithm developer. Algorithms should be primed with whatever data is needed, usually by its associated {@link AlgorithmFactory}, before execution. This allows an Algorithm to be set up, then scheduled for later execution. @author Bruce Herr (bh2@bh2.net)

  /**
     * @see org.cishell.service.conversion.Converter#convert(org.cishell.framework.data.Data)
     */
    public Data convert(Data inData) throws ConversionException {
        AlgorithmFactory factory = getAlgorithmFactory();
        Algorithm algorithm = factory.createAlgorithm(new Data[]{inData}, new Hashtable<String, Object>(), ciContext);


        Data[] resultDataArray;
        try {
          resultDataArray = algorithm.execute();
    } catch (AlgorithmExecutionException e) {
      e.printStackTrace();
      throw new ConversionException(e.getMessage(), e);
    } catch (Exception e) {
      e.printStackTrace();

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     * @see org.cishell.framework.algorithm.AlgorithmFactory#createAlgorithm(org.cishell.framework.data.Data[], java.util.Dictionary, org.cishell.framework.CIShellContext)
     */
    public Algorithm createAlgorithm(Data[] dm, final Dictionary parameters,
            final CIShellContext context) {
        
        Algorithm alg = new Algorithm() {
            public Data[] execute() {
                String host = (String) parameters.get("org.cishell.reference.remoting.frontend.client.host");
                int port = ((Integer) parameters.get("org.cishell.reference.remoting.frontend.client.port")).intValue();
                
                new ClientInstanceAlg(bContext, context).connect(host, port);

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            for (int ii = 0; ii < serviceReferences.size(); ii++) {
                AlgorithmFactory factory =
                  bContext.getService(serviceReferences.get(ii));
                
                if (factory != null) {
                    Algorithm algorithm = factory.createAlgorithm(
                      convertedData, this.parameters, this.ciShellContext);
                    
                    try {
                      convertedData = algorithm.execute();
                    } catch(AlgorithmExecutionException e) {
                      boolean isLastStep = (ii == serviceReferences.size() - 1);
                      if (isLastStep && isHandler(serviceReferences.get(ii))) {
                        /* If the last step of the converter chain is a
                         * handler and it is the first (and so only) step

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    Set keys = algorithmToGuiItemMap.keySet();


    tableItemToAlgorithmMap = Collections.synchronizedMap(new Hashtable());


    for (Iterator i = keys.iterator(); i.hasNext();) {
      Algorithm algorithm = (Algorithm) i.next();
      SchedulerTableItem schedulerTableItem = (SchedulerTableItem) algorithmToGuiItemMap
          .get(algorithm);
      schedulerTableItem.initTableEntry(table, 0);


      TableItem tableItem = schedulerTableItem.getTableItem();

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    private void removeSelection() {
    TableItem[] tableItems = table.getSelection();
    for (int i = 0; i < tableItems.length; ++i) {
      for (Iterator j = algorithmToGuiItemMap.keySet().iterator(); j
          .hasNext();) {
        Algorithm algorithm = (Algorithm) j.next();
        SchedulerTableItem schedulerTableItem = (SchedulerTableItem) algorithmToGuiItemMap
            .get(algorithm);
        if (tableItems[i].equals(schedulerTableItem.getTableItem())) {
          if (algorithmIsProgressTrackable(algorithm)) {
            ProgressMonitor monitor = ((ProgressTrackable) algorithm)

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     * @param destNdx Destination of table item
     */
    private void moveTableItems(int ndxToMove, int destNdx) {
    TableItem item = table.getItem(ndxToMove);
    if (item != null) {
      Algorithm algorithm = (Algorithm) tableItemToAlgorithmMap
          .get(item);
      tableItemToAlgorithmMap.remove(item);


      SchedulerTableItem schedulerTableItem = (SchedulerTableItem) algorithmToGuiItemMap
          .get(algorithm);

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    private class TableListener extends SelectionAdapter {
    public void widgetSelected(SelectionEvent e) {
      TableItem[] items = table.getSelection();
      for (int i = 0; i < items.length; ++i) {
        TableItem item = items[i];
        Algorithm algorithm = (Algorithm) tableItemToAlgorithmMap
            .get(item);
        if (algorithm != null) {
          if (algorithmIsProgressTrackable(algorithm)) {
            removeButton.setEnabled(true);
          } else {

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     */
  private class PauseListener implements Listener {
    public void handleEvent(Event event) {
      TableItem item   = table.getItem(table.getSelectionIndex());
      if (item != null) {
        Algorithm algorithm = (Algorithm)tableItemToAlgorithmMap.get(item);
        if (algorithm instanceof ProgressTrackable) {
          ProgressMonitor monitor = ((ProgressTrackable)algorithm).getProgressMonitor();
          if (monitor != null) {
            monitor.setPaused(true);
            setEnabledMenuItems(algorithm);

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   */
  private class CancelListener implements Listener {
    public void handleEvent(Event event) {
      TableItem item   = table.getItem(table.getSelectionIndex());
      if (item != null) {
        Algorithm algorithm = (Algorithm) tableItemToAlgorithmMap
            .get(item);
        if (algorithm instanceof ProgressTrackable) {
          ProgressMonitor monitor = ((ProgressTrackable) algorithm)
              .getProgressMonitor();
          if (monitor != null) {

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   */
  private class StartListener implements Listener {    
    public void handleEvent(Event event) {
      TableItem item   = table.getItem(table.getSelectionIndex());
      if (item != null) {
        Algorithm algorithm = (Algorithm) tableItemToAlgorithmMap
            .get(item);
        if (algorithm instanceof ProgressTrackable) {
          ProgressMonitor monitor = ((ProgressTrackable) algorithm)
              .getProgressMonitor();
          if (monitor != null) {

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