/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.jmeter.gui.action;
import java.awt.event.ActionEvent;
import java.util.HashSet;
import java.util.Set;
import org.apache.jmeter.engine.TreeCloner;
import org.apache.jmeter.exceptions.IllegalUserActionException;
import org.apache.jmeter.gui.GuiPackage;
import org.apache.jorphan.collections.HashTree;
/**
* Menu command to serve Undo/Redo
* @since 2.12
*/
public class UndoCommand implements Command {
private static final Set<String> commands = new HashSet<String>();
static {
commands.add(ActionNames.UNDO);
commands.add(ActionNames.REDO);
}
@Override
public void doAction(ActionEvent e) throws IllegalUserActionException {
GuiPackage guiPackage = GuiPackage.getInstance();
final String command = e.getActionCommand();
if (command.equals(ActionNames.UNDO)) {
guiPackage.goInHistory(-1);
} else if (command.equals(ActionNames.REDO)) {
guiPackage.goInHistory(1);
} else {
throw new IllegalArgumentException("Wrong action called: " + command);
}
}
/**
* @return Set<String>
*/
@Override
public Set<String> getActionNames() {
return commands;
}
/**
* wrapper to use package-visible method
* and clone tree for saving
*
* @param tree to be converted and cloned
*/
public static HashTree convertAndCloneSubTree(HashTree tree) {
Save executor = new Save();
executor.convertSubTree(tree);
// convert before clone
TreeCloner cloner = new TreeCloner(false);
tree.traverse(cloner);
return cloner.getClonedTree();
}
}