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);
}
}
private void updateFromDB() {
InstanceListPane touchedList = null;
// Find out which instances have been selected in all relevant lists
// Update the attribute values for changed list.
try {
if (changedList != null) {
java.util.List list = new ArrayList(changedList.getSelection()); // To support it.remove()
// Use a new ArrayList.
if (list != null && list.size() > 0) {
for (Iterator it = list.iterator(); it.hasNext(); ) {
GKInstance instance = (GKInstance) it.next();
// Fetch GKInstance based on its DB_ID since SchemaClass might be changed.
GKInstance localCopy = fileAdaptor.fetchInstance(instance.getDBID());
dbAdaptor.setUseCache(false);
GKInstance dbCopy = dbAdaptor.fetchInstance(instance.getDBID());
dbAdaptor.setUseCache(true);
if (SynchronizationManager.getManager().updateFromDB(localCopy, dbCopy, this)) {
AttributeEditManager.getManager().attributeEdit(localCopy);
fileAdaptor.removeDirtyFlag(localCopy);
} else it.remove(); // Remove from the list
}
// Remove all selected instances
changedList.deleteInstances(list);
touchedList = changedList;
}
}
if (localHasMoreIEList != null && localHasMoreIEList.getSelection().size() > 0) {
List list = new ArrayList(localHasMoreIEList.getSelection());
for (Iterator it = list.iterator(); it.hasNext(); ) {
GKInstance localCopy = (GKInstance) it.next();
dbAdaptor.setUseCache(false);
GKInstance dbCopy = dbAdaptor.fetchInstance(localCopy.getDBID());
dbAdaptor.setUseCache(true);
if (SynchronizationManager.getManager().updateFromDB(localCopy, dbCopy, this)) {
AttributeEditManager.getManager().attributeEdit(localCopy);
fileAdaptor.removeDirtyFlag(localCopy);
} else it.remove(); // Remove from the list, if it it cancelled by the user.
}
localHasMoreIEList.deleteInstances(list);
touchedList = localHasMoreIEList;
}
// Delete the local copy for deleteInDBList.
if (deleteInDBList != null) {
java.util.List list = deleteInDBList.getSelection();
if (list != null && list.size() > 0) {
for (Iterator it = list.iterator(); it.hasNext(); ) {
GKInstance instance = (GKInstance) it.next();
fileAdaptor.deleteInstance(instance);
}
}
deleteInDBList.deleteInstances(list);
touchedList = deleteInDBList;
}
// Get another copy for the local repository
if (deleteList != null) {
java.util.List<?> list = deleteList.getSelection();
if (list != null && list.size() > 0) {
Map<SchemaClass, Set<GKInstance>> checkOutMap =
new HashMap<SchemaClass, Set<GKInstance>>(); // All checked out Instances
for (Iterator<?> it = list.iterator(); it.hasNext(); ) {
GKInstance instance = (GKInstance) it.next();
Map<SchemaClass, List<GKInstance>> schemaMap =
InstanceUtilities.listDownloadableInstances(instance);
// Have to merge schemaMap to checkOutMap
for (SchemaClass key : schemaMap.keySet()) {
List<GKInstance> list1 = schemaMap.get(key);
if (list1 != null && list1.size() > 0) {
Set<GKInstance> list2 = checkOutMap.get(key);
if (list2 == null) {
list2 = new HashSet<GKInstance>();
checkOutMap.put(key, list2);
}
// Remove first to avoid any duplication
list2.addAll(list1);
}
}
}
fileAdaptor.store(checkOutMap);
InstanceUtilities.clearShellFlags(checkOutMap);
// There are maybe more than selected instances after checking out
List<GKInstance> checkedOut = new ArrayList<GKInstance>();
for (Set<GKInstance> set : checkOutMap.values()) {
checkedOut.addAll(set);
}
deleteList.deleteInstances(checkedOut);
// deleteList.deleteInstances(list);
// Need to clear out these deletion records
List<Long> dbIds = new ArrayList<Long>();
for (GKInstance inst : checkedOut) dbIds.add(inst.getDBID());
fileAdaptor.clearDeleteRecord(dbIds);
touchedList = deleteList;
}
}
} catch (Exception e) {
System.err.println("SynchronizationDialog.updateFromDB(): " + e);
e.printStackTrace();
}
updateInstanceList(touchedList);
}