/*
* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2006 The ObjectStyle Group and individual authors of the
* software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowlegement: "This product includes software
* developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
* this acknowlegement may appear in the software itself, if and wherever such
* third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
* promote products derived from this software without prior written permission.
* For written permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle" nor
* may "ObjectStyle" appear in their names without prior written permission of
* the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals on
* behalf of the ObjectStyle Group. For more information on the ObjectStyle
* Group, please see <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.eomodeler.actions;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.operations.AbstractOperation;
import org.eclipse.core.commands.operations.IOperationHistory;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.PlatformUI;
import org.objectstyle.wolips.baseforuiplugins.utils.ErrorUtils;
import org.objectstyle.wolips.eomodeler.core.model.EOModelException;
import org.objectstyle.wolips.eomodeler.core.model.EOModelObject;
import org.objectstyle.wolips.eomodeler.core.model.EOModelVerificationFailure;
import org.objectstyle.wolips.eomodeler.core.utils.EOModelUtils;
public abstract class AbstractNewObjectAction<T extends EOModelObject, U extends EOModelObject> extends EMAction {
private Class<T> _parentType;
private String _label;
public AbstractNewObjectAction(Class<T> parentType, String label) {
_label = label;
_parentType = parentType;
}
public String getLabel() {
return _label;
}
public void run(IAction action) {
try {
T selectedObject = null;
IStructuredSelection selection = getSelection();
if (selection != null) {
Object firstElement = selection.getFirstElement();
if (firstElement instanceof EOModelObject) {
selectedObject = (T) EOModelUtils.getRelated(_parentType, (EOModelObject) firstElement);
}
}
if (selectedObject != null) {
NewOperation operation = new NewOperation(selectedObject);
operation.addContext(EOModelUtils.getUndoContext(selectedObject));
IOperationHistory operationHistory = PlatformUI.getWorkbench().getOperationSupport().getOperationHistory();
operationHistory.execute(operation, null, null);
} else {
MessageDialog.openError(getWindow().getShell(), getNoSelectionTitle(), getNoSelectionMessage());
}
} catch (Throwable e) {
ErrorUtils.openErrorDialog(Display.getDefault().getActiveShell(), e);
}
}
protected abstract String getNoSelectionTitle();
protected abstract String getNoSelectionMessage();
protected abstract U createChild(T parent, Set<EOModelVerificationFailure> failures) throws EOModelException;
protected class NewOperation extends AbstractOperation {
private T _parent;
private U _child;
public NewOperation(T parent) {
super(AbstractNewObjectAction.this.getLabel());
_parent = parent;
}
@Override
public IStatus execute(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
try {
Set<EOModelVerificationFailure> failures = new HashSet<EOModelVerificationFailure>();
_child = AbstractNewObjectAction.this.createChild(_parent, failures);
//System.out.println("NewOperation.execute: Added " + _child + " to " + _parent);
return Status.OK_STATUS;
} catch (EOModelException e) {
throw new ExecutionException("Failed to add new object.", e);
}
}
@Override
public IStatus redo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
return execute(monitor, info);
}
@Override
public IStatus undo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
try {
//System.out.println("NewOperation.undo: undo adding " + _child + " to " + _parent);
Set<EOModelVerificationFailure> failures = new HashSet<EOModelVerificationFailure>();
_child._removeFromModelParent(failures);
return Status.OK_STATUS;
} catch (EOModelException e) {
throw new ExecutionException("Failed to remove object.", e);
}
}
}
}