/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.internal.cheatsheets.composite.parser;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.internal.cheatsheets.Messages;
import org.eclipse.ui.internal.cheatsheets.composite.model.AbstractTask;
import org.eclipse.ui.internal.provisional.cheatsheets.ICompositeCheatSheetTask;
import org.eclipse.ui.internal.provisional.cheatsheets.ITaskGroup;
import org.w3c.dom.Node;
public class TaskGroupParseStrategy implements ITaskParseStrategy {
public TaskGroupParseStrategy() {
}
public void init() {
}
public boolean parseElementNode(Node childNode, Node parentNode,
AbstractTask parentTask, IStatusContainer status)
{
// Task children are handled by CompositeCheatSheetParser
return false;
}
public void parsingComplete(AbstractTask parentTask, IStatusContainer status) {
String kind = parentTask.getKind();
if (ITaskGroup.SEQUENCE.equals(kind)) {
// Create dependencies between the children
ICompositeCheatSheetTask[] children = parentTask.getSubtasks();
AbstractTask previous = null;
AbstractTask next = null;
for (int i = 0; i < children.length; i++) {
previous = next;
next = (AbstractTask)children[i];
if (previous != null) {
next.addRequiredTask(previous);
}
}
checkForChildren(parentTask, status);
} else if (ITaskGroup.SET.equals(kind)) {
checkForChildren(parentTask, status);
} else if (ITaskGroup.CHOICE.equals(kind)) {
checkForChildren(parentTask, status);
} else {
String message = NLS.bind(
Messages.ERROR_PARSING_TASK_INVALID_KIND,
(new Object[] { parentTask.getKind(), ICompositeCheatsheetTags.TASK_GROUP, parentTask.getName()}));
status.addStatus(IStatus.ERROR, message, null);
}
}
private void checkForChildren(AbstractTask parentTask, IStatusContainer status) {
if (parentTask.getSubtasks().length < 1) {
String message = NLS.bind(
Messages.ERROR_PARSING_CHILDLESS_TASK_GROUP,
(new Object[] { parentTask.getName()}));
status.addStatus(IStatus.ERROR, message, null);
}
}
}