/*
* (c) Copyright 2010-2011 AgileBirds
*
* This file is part of OpenFlexo.
*
* OpenFlexo is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenFlexo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
*
*/
package org.openflexo.foundation.wkf.action;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.openflexo.foundation.DeletableObject;
import org.openflexo.foundation.FlexoEditor;
import org.openflexo.foundation.FlexoModelObject;
import org.openflexo.foundation.action.FlexoActionType;
import org.openflexo.foundation.action.FlexoUndoableAction;
import org.openflexo.foundation.toc.TOCEntry;
import org.openflexo.foundation.wkf.FlexoPetriGraph;
import org.openflexo.foundation.wkf.FlexoProcess;
import org.openflexo.foundation.wkf.WKFObject;
public class WKFDelete extends FlexoUndoableAction<WKFDelete, WKFObject, WKFObject> {
private static final Logger logger = Logger.getLogger(WKFDelete.class.getPackage().getName());
public static FlexoActionType<WKFDelete, WKFObject, WKFObject> actionType = new FlexoActionType<WKFDelete, WKFObject, WKFObject>(
"delete", FlexoActionType.editGroup, FlexoActionType.DELETE_ACTION_TYPE) {
/**
* Factory method
*/
@Override
public WKFDelete makeNewAction(WKFObject focusedObject, Vector<WKFObject> globalSelection, FlexoEditor editor) {
return new WKFDelete(focusedObject, globalSelection, editor);
}
@Override
public boolean isVisibleForSelection(WKFObject object, Vector<WKFObject> globalSelection) {
return !(object instanceof FlexoPetriGraph);
}
@Override
public boolean isEnabledForSelection(WKFObject object, Vector<WKFObject> globalSelection) {
if (object == null && globalSelection == null || object == null && globalSelection.size() == 0) {
return false;
}
for (WKFObject next : globalSelection) {
if (next instanceof FlexoProcess) {
FlexoProcess p = (FlexoProcess) next;
if (p.isImported()) {
if (!p.isTopLevelProcess()) {
return false;
}
} else if (p.getSubProcesses() != null && p.getSubProcesses().size() > 0) {
return false;
}
}
}
return true;
}
};
static {
FlexoModelObject.addActionForClass(actionType, WKFObject.class);
}
private boolean noConfirmation = false;
public boolean isNoConfirmation() {
return noConfirmation;
}
public void setNoConfirmation(boolean noConfirmation) {
this.noConfirmation = noConfirmation;
}
protected WKFDelete(WKFObject focusedObject, Vector<WKFObject> globalSelection, FlexoEditor editor) {
super(actionType, focusedObject, globalSelection, editor);
_deletionContexts = new Hashtable<WKFObject, Object>();
if (logger.isLoggable(Level.FINE)) {
logger.fine("Created WKFDelete action focusedObject=" + focusedObject + "globalSelection=" + globalSelection);
}
}
@Override
protected void doAction(Object context) {
if (logger.isLoggable(Level.INFO)) {
logger.info("DELETE on WKF");
}
if (logger.isLoggable(Level.INFO)) {
logger.info("selection is: " + getGlobalSelection());
}
if (logger.isLoggable(Level.INFO)) {
logger.info("selection to delete is: " + getObjectsToDelete());
}
for (Enumeration en = getObjectsToDelete().elements(); en.hasMoreElements();) {
WKFObject next = (WKFObject) en.nextElement();
if (logger.isLoggable(Level.INFO)) {
logger.info(" > DELETE" + next);
}
deleteObject(next);
}
}
@Override
protected void undoAction(Object context) {
logger.warning("UNDO DELETE on DM not implemented yet !");
}
@Override
protected void redoAction(Object context) {
logger.warning("REDO DELETE on DM not implemented yet !");
}
private Vector<WKFObject> _objectsToDelete;
/**
* This method returns all the objects on which the delete method needs to be called. This should not be done by some other code than
* the one located in the doAction method. This method can be used in either initialiazer or finalizer of the action. Do not forget to
* consult the _deletionContext, because objectsToDelete returns the objects that will be deleted, not the ones that have been deleted.
*
* @return All the objects to be deleted.
*/
public Vector<WKFObject> getObjectsToDelete() {
if (_objectsToDelete == null) {
_objectsToDelete = new Vector<WKFObject>();
if (!getGlobalSelection().contains(getFocusedObject())) {
boolean includesIt = true;
for (FlexoModelObject next : getGlobalSelection()) {
if (next instanceof WKFObject) {
if (((WKFObject) next).getAllEmbeddedDeleted().contains(getFocusedObject())) {
includesIt = false;
break;
}
}
}
if (includesIt) {
_objectsToDelete.add(getFocusedObject());
}
}
/**
* The purpose of the loop below is too find all objects on which the delete must be called, so that all the selected objects
* are removed from the model. The trick is to verify that an object will not already be deleted because another one has been
* previously removed (causing a double call to delete on that object, which will most likely fail).
*/
Enumeration<WKFObject> en = getGlobalSelection().elements();
while (en.hasMoreElements()) {
WKFObject object = en.nextElement();
boolean includesIt = true;
if (object instanceof FlexoPetriGraph) {
includesIt = false;
}
for (FlexoModelObject next : getGlobalSelection()) {
if (next instanceof WKFObject && next != object) {
if (((WKFObject) next).getAllEmbeddedDeleted().contains(object)) {
includesIt = false;
break;
}
}
}
if (includesIt) {
_objectsToDelete.add(object);
}
}
}
return _objectsToDelete;
}
// ==========================================================
// ============= Deletion contexts management ===============
// ==========================================================
private Hashtable<WKFObject, Object> _deletionContexts;
private Vector<TOCEntry> entriesToDelete;
public void setDeletionContextForObject(Object deletionContext, WKFObject object) {
_deletionContexts.put(object, deletionContext);
}
// ==========================================================
// ================== Deletion procedure ====================
// ==========================================================
private void deleteObject(WKFObject object) {
if (entriesToDelete != null) {
for (TOCEntry entry : entriesToDelete) {
if (!entry.isDeleted()) {
entry.delete();
}
}
}
if (object instanceof FlexoProcess) {
Boolean deleteProcess = (Boolean) _deletionContexts.get(object);
if (deleteProcess != null && deleteProcess.booleanValue()) {
FlexoProcess processToDelete = (FlexoProcess) object;
// If process is a WS, delete the WS itself
if (processToDelete.getProject().getFlexoWSLibrary().isDeclaredAsWS(processToDelete)) {
processToDelete.getProject().getFlexoWSLibrary().portTypeForProcess(processToDelete).getWSService().delete();
} else {
processToDelete.delete();
}
}
} else if (object instanceof DeletableObject) {
object.delete();
}
}
public boolean hasBeenDeleted(FlexoProcess p) {
return _objectsToDelete.contains(p) && _deletionContexts.get(p) != null && ((Boolean) _deletionContexts.get(p)).booleanValue();
}
public void setEntriesToDelete(Vector<TOCEntry> entriesToDelete) {
this.entriesToDelete = entriesToDelete;
}
}