JMeter example source code file (Copy.java)

This example JMeter source code file (Copy.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - JMeter tags/keywords

abstractaction, awt, copy, enumeration, event, hashset, hashset, jmetertreelistener, jmetertreelistener, jmetertreenode, jmetertreenode, override, override, set, util

The JMeter Copy.java source code

/*
 * 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.
 *
 */

/*
 * Created on Apr 9, 2003
 *
 * Clones a JMeterTreeNode
 */
package org.apache.jmeter.gui.action;

import java.awt.event.ActionEvent;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;

import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.gui.tree.JMeterTreeListener;
import org.apache.jmeter.gui.tree.JMeterTreeNode;
import org.apache.jmeter.testelement.TestElement;

/**
 * Implements the Copy menu command
 */
public class Copy extends AbstractAction {
    private static JMeterTreeNode copiedNode = null;

    private static JMeterTreeNode copiedNodes[] = null;

    private static final HashSet<String> commands = new HashSet();

    static {
        commands.add(ActionNames.COPY);
    }

    /*
     * @see org.apache.jmeter.gui.action.Command#getActionNames()
     */
    @Override
    public Set<String> getActionNames() {
        return commands;
    }

    @Override
    public void doAction(ActionEvent e) {
        JMeterTreeListener treeListener = GuiPackage.getInstance().getTreeListener();
        JMeterTreeNode[] nodes = treeListener.getSelectedNodes();
        setCopiedNodes(nodes);
    }

    public static JMeterTreeNode[] getCopiedNodes() {
        for (int i = 0; i < copiedNodes.length; i++) {
            if (copiedNodes[i] == null) {
                return null;
            }
        }
        return cloneTreeNodes(copiedNodes);
    }

    public static JMeterTreeNode getCopiedNode() {
        if (copiedNode == null) {
            return null;
        }
        return cloneTreeNode(copiedNode);
    }

    public static void setCopiedNode(JMeterTreeNode node) {
        copiedNode = cloneTreeNode(node);
    }

    public static JMeterTreeNode cloneTreeNode(JMeterTreeNode node) {
        JMeterTreeNode treeNode = (JMeterTreeNode) node.clone();
        treeNode.setUserObject(((TestElement) node.getUserObject()).clone());
        cloneChildren(treeNode, node);
        return treeNode;
    }

    public static void setCopiedNodes(JMeterTreeNode nodes[]) {
        copiedNodes = new JMeterTreeNode[nodes.length];
        for (int i = 0; i < nodes.length; i++) {
            copiedNodes[i] = cloneTreeNode(nodes[i]);
        }
    }

    public static JMeterTreeNode[] cloneTreeNodes(JMeterTreeNode nodes[]) {
        JMeterTreeNode treeNodes[] = new JMeterTreeNode[nodes.length];
        for (int i = 0; i < nodes.length; i++) {
            treeNodes[i] = cloneTreeNode(nodes[i]);
        }
        return treeNodes;
    }

    private static void cloneChildren(JMeterTreeNode to, JMeterTreeNode from) {
        Enumeration<?> enumFrom = from.children();
        while (enumFrom.hasMoreElements()) {
            JMeterTreeNode child = (JMeterTreeNode) enumFrom.nextElement();
            JMeterTreeNode childClone = (JMeterTreeNode) child.clone();
            childClone.setUserObject(((TestElement) child.getUserObject()).clone());
            to.add(childClone);
            cloneChildren((JMeterTreeNode) to.getLastChild(), child);
        }
    }
}