/**
* Construct the LoadFileTask object. The constructor will run on the EDT, so we capture a
* reference to the File to be loaded here. To keep things simple, the resources for this Task are
* specified to be in the same ResourceMap as the DocumentEditorView class's resources. They're
* defined in resources/ImageFlowView.properties.
*
* @param file
*/
public SaveFileTask(final File file) {
super(ImageFlow.getApplication());
ImageFlowView.getProgressBar().setIndeterminate(true);
ImageFlowView.getProgressBar().setVisible(true);
this.file = file;
this.view = (ImageFlowView) ImageFlow.getApplication().getMainView();
}
/* Called on the EDT if doInBackground fails because
* an uncaught exception is thrown. We show an error
* dialog here. The dialog is configured with resources
* loaded from this Tasks's ResourceMap.
*/
@Override
protected void failed(final Throwable e) {
logger.log(Level.WARNING, "couldn't save " + getFile(), e);
final String msg = getResourceMap().getString("loadFailedMessage", getFile());
final String title = getResourceMap().getString("loadFailedTitle");
final int type = JOptionPane.ERROR_MESSAGE;
ImageFlowView.getProgressBar().setIndeterminate(false);
ImageFlowView.getProgressBar().setVisible(false);
JOptionPane.showMessageDialog(ImageFlow.getApplication().getMainFrame(), msg, title, type);
}
/**
* Reads the contents of a flow-XML input stream.
*
* @param in S flow-XML input stream
*/
public void read(URL url) {
try {
SAXBuilder sb = new SAXBuilder();
Document doc = sb.build(url);
Element root = doc.getRootElement();
System.out.println("Read nodes ...");
// read units
Element unitsElement = root.getChild("Units");
readUnits(newNodes, url, unitsElement);
// at this point we have all units in the workflow, however no connections
// groups are missing their inputs and outputs
//
System.out.println("Process Connection Delegates ...");
// process ConnectionDelegates
for (ConnectionDelegate conndel : connectionDelegates) {
conndel.list.add(readConnection(newNodes, conndel));
}
System.out.println("Process Groups and add inputs and outputs ...");
// process groups
for (GroupUnitElement unit : groupUnits) {
unit.dealWithConnections(getConnectionList());
}
System.out.println("Read global connections ...");
// read connections
Element connectionsElement = root.getChild("Connections");
readConnections(newNodes, connectionsElement);
} catch (Exception e) {
System.err.println("Invalid XML-File!");
e.printStackTrace();
JOptionPane.showMessageDialog(
((ImageFlow) ImageFlow.getInstance()).getMainFrame(),
"The selected workflow could not be loaded.",
"Workflow not loaded",
JOptionPane.INFORMATION_MESSAGE);
}
}