private void handleMergeResult(
GKInstance localCopy, GKInstance dbCopy, InstanceComparisonPane comparisonPane) {
if (comparisonPane.getSaveMergeOption() == InstanceComparisonPane.OVERWRITE_FIRST) {
// Need to refresh the selected instance
InstanceComparer comparer = new InstanceComparer();
try {
int result = comparer.compare(localCopy, dbCopy);
if (result != InstanceComparer.IS_IDENTICAL) {
typeMap.put(localCopy, mapCompareResultToString(result));
} else {
typeMap.remove(localCopy);
changedList.deleteInstance(localCopy);
}
changedList.repaint();
} catch (Exception e1) {
System.err.println("SynchronizationDialog.handleMergeResult(): " + e1);
e1.printStackTrace();
}
} else if (comparisonPane.getSaveMergeOption() == InstanceComparisonPane.SAVE_AS_NEW) {
// Need to add a new instance to the local new instance
GKInstance newInstance = comparisonPane.getMerged();
List newInstances = (List) syncMap.get(NEW_KEY);
if (newInstances == null) {
newInstances = new ArrayList();
syncMap.put(NEW_KEY, newInstances);
}
newInstances.add(newInstance);
typeMap.put(newInstance, NEW_KEY);
if (newList == null) {
// Get some information from changed
newList =
initInstanceListPane(newInstances, "Instances created locally: " + newInstances.size());
centerPane.validate();
} else {
// Cannot call this method because it is used for one schema class only
// newList.addInstance(newInstance);
newList.setTitle("Instances created locally: " + newInstances.size());
newList.setDisplayedInstances(newInstances);
newList.repaint();
}
}
}
private void showComparison() {
// Find the instance that can be used for comparision. This instance
// should be chosen from changedList or localHasUnexpInstance
GKInstance instance = null;
if (changedList != null) { // Check changedList first
List selection = changedList.getSelection();
if (selection.size() > 0) instance = (GKInstance) selection.get(0);
}
if (instance == null && localHasMoreIEList != null) {
List selection = localHasMoreIEList.getSelection();
if (selection.size() > 0) instance = (GKInstance) selection.get(0);
}
if (instance == null) return;
final InstanceComparisonPane comparisonPane = new InstanceComparisonPane();
// Fine tune comparison pane for making comparisons with
// database
comparisonPane.setSaveDialogHideUnusedButtons(true);
comparisonPane.setSaveDialogSaveAsNewBtnFirst(false);
comparisonPane.setSaveDialogSaveAsNewBtnTitle(
"Create new local instance and put merge into that");
comparisonPane.setSaveDialogReplaceFirstBtnTitle(
"Overwrite existing instance with merge (recommended)");
comparisonPane.setCloseAfterSaving(true);
try {
String clsName = instance.getSchemClass().getName();
Long instanceId = instance.getDBID();
final GKInstance localCopy = fileAdaptor.fetchInstance(clsName, instanceId);
dbAdaptor.setUseCache(false);
// final GKInstance dbCopy = dbAdaptor.fetchInstance(clsName, instanceId);
// The class type might be changed locally or remotely. So not clsName should be used
// to fetch database instance. Otherwise, null exception will be thrown. The same thing
// is done also in creating synchronization result.
final GKInstance dbCopy = dbAdaptor.fetchInstance(instanceId);
dbAdaptor.setUseCache(true);
comparisonPane.setInstances(localCopy, dbCopy);
String title =
"Comparing Instances \""
+ instance.getDisplayName()
+ "\" in the local and DB repositories";
JDialog parentDialog = (JDialog) SwingUtilities.getAncestorOfClass(JDialog.class, centerPane);
final JDialog dialog = new JDialog(parentDialog, title);
// Try to update the list automatically
dialog.addWindowListener(
new WindowAdapter() {
public void windowClosed(WindowEvent e) {
handleMergeResult(localCopy, dbCopy, comparisonPane);
// To prevent double calling. It is called again when parentDialog is closed.
dialog.removeWindowListener(this);
}
});
dialog.getContentPane().add(comparisonPane, BorderLayout.CENTER);
dialog.setModal(true);
dialog.setSize(800, 600);
GKApplicationUtilities.center(dialog);
dialog.setVisible(true);
// Update synchronization dialog panels depending on user
// choice.
if (comparisonPane.getSaveMergeOption() == InstanceComparisonPane.SAVE_AS_NEW) {
GKInstance merged = comparisonPane.getMerged();
if (newList == null) {
List list = new ArrayList();
list.add(merged);
newList = initInstanceListPane(list, "Instances created locally: " + list.size());
} else newList.addInstance(merged);
} else if (comparisonPane.getSaveMergeOption() == InstanceComparisonPane.OVERWRITE_FIRST) {
dbAdaptor.setUseCache(false);
GKInstance remoteCopy = dbAdaptor.fetchInstance(instance.getDBID());
dbAdaptor.setUseCache(true);
if (remoteCopy != null) {
InstanceComparer comparer = new InstanceComparer();
int reply = comparer.compare(instance, remoteCopy);
if (reply == InstanceComparer.LOCAL_HAS_MORE_IE) {
if (localHasMoreIEList == null) {
List list = new ArrayList();
list.add(instance);
localHasMoreIEList =
initInstanceListPane(
list, "Local instances having unexpected InstanceEdits: " + list.size());
} else localHasMoreIEList.addInstance(instance);
} else if (reply == InstanceComparer.IS_IDENTICAL) {
// Merge has made local and database copies
// identical - don't need to check in anymore
changedList.deleteInstance(instance);
} else if (reply != InstanceComparer.NEW_CHANGE_IN_LOCAL) {
// Merge has produced a conflict
typeMap.put(mapCompareResultToString(reply), instance);
} else
// The user should now be allowed to commit this
// instance, because it will now have changed.
commitToDBAction.setEnabled(true);
JOptionPane.showMessageDialog(
parentDialog,
"Merge successful, you will need to check the merged instance into the database.\n\n",
"Merge OK",
JOptionPane.INFORMATION_MESSAGE);
}
}
} catch (Exception e1) {
System.err.println("Synchronization.createDisplayMapPane(): " + e1);
e1.printStackTrace();
JOptionPane.showMessageDialog(
this,
"Error in comparing: " + instance.toString(),
"Error in Comparing",
JOptionPane.ERROR_MESSAGE);
}
}