JMeter example source code file (CheckDirty.java)

This example JMeter source code file (CheckDirty.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

awt, checkdirty, checkdirty, event, guipackage, hashtree, hashtree, hashtreetraverser, jmetertreenode, jmetertreenode, listedhashtree, node, override, set, testelement, testelement, util

The JMeter CheckDirty.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.
 *
 */

package org.apache.jmeter.gui.action;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.gui.tree.JMeterTreeNode;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jorphan.collections.HashTree;
import org.apache.jorphan.collections.HashTreeTraverser;
import org.apache.jorphan.collections.ListedHashTree;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;

/**
 * Check if the TestPlan has been changed since it was last saved
 *
 */
public class CheckDirty extends AbstractAction implements HashTreeTraverser, ActionListener {
    private static final Logger log = LoggingManager.getLoggerForClass();

    private final Map<JMeterTreeNode, TestElement> previousGuiItems;

    private boolean checkMode = false;

    private boolean removeMode = false;

    private boolean dirty = false;

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

    static {
        commands.add(ActionNames.CHECK_DIRTY);
        commands.add(ActionNames.SUB_TREE_SAVED);
        commands.add(ActionNames.SUB_TREE_MERGED);
        commands.add(ActionNames.SUB_TREE_LOADED);
        commands.add(ActionNames.ADD_ALL);
        commands.add(ActionNames.CHECK_REMOVE);
    }

    public CheckDirty() {
        previousGuiItems = new HashMap<JMeterTreeNode, TestElement>();
        ActionRouter.getInstance().addPreActionListener(ExitCommand.class, this);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getActionCommand().equals(ActionNames.EXIT)) {
            doAction(e);
        }
    }

    /**
     * @see Command#doAction(ActionEvent)
     */
    @Override
    public void doAction(ActionEvent e) {
        String action = e.getActionCommand();
        if (action.equals(ActionNames.SUB_TREE_SAVED)) {
            HashTree subTree = (HashTree) e.getSource();
            subTree.traverse(this);
        } else if (action.equals(ActionNames.SUB_TREE_LOADED)) {
            ListedHashTree addTree = (ListedHashTree) e.getSource();
            addTree.traverse(this);
        } else if (action.equals(ActionNames.ADD_ALL)) {
            previousGuiItems.clear();
            GuiPackage.getInstance().getTreeModel().getTestPlan().traverse(this);
        } else if (action.equals(ActionNames.CHECK_REMOVE)) {
            GuiPackage guiPackage = GuiPackage.getInstance();
            JMeterTreeNode[] nodes = guiPackage.getTreeListener().getSelectedNodes();
            removeMode = true;
            for (int i = nodes.length - 1; i >= 0; i--) {
                guiPackage.getTreeModel().getCurrentSubTree(nodes[i]).traverse(this);
            }
            removeMode = false;
        }
        // If we are merging in another test plan, we know the test plan is dirty now
        if(action.equals(ActionNames.SUB_TREE_MERGED)) {
            dirty = true;
        }
        else {
            dirty = false;
            checkMode = true;
            HashTree wholeTree = GuiPackage.getInstance().getTreeModel().getTestPlan();
            wholeTree.traverse(this);
            checkMode = false;
        }
        GuiPackage.getInstance().setDirty(dirty);
    }

    /**
     * The tree traverses itself depth-first, calling processNode for each
     * object it encounters as it goes.
     */
    public void addNode(Object node, HashTree subTree) {
        log.debug("Node is class:" + node.getClass());
        JMeterTreeNode treeNode = (JMeterTreeNode) node;
        if (checkMode) {
            // Only check if we have not found any differences so far
            if(!dirty) {
                if (previousGuiItems.containsKey(treeNode)) {
                    if (!previousGuiItems.get(treeNode).equals(treeNode.getTestElement())) {
                        dirty = true;
                    }
                } else {
                    dirty = true;
                }
            }
        } else if (removeMode) {
            previousGuiItems.remove(treeNode);
        } else {
            previousGuiItems.put(treeNode, (TestElement) treeNode.getTestElement().clone());
        }
    }

    /**
     * Indicates traversal has moved up a step, and the visitor should remove
     * the top node from it's stack structure.
     */
    public void subtractNode() {
    }

    /**
     * Process path is called when a leaf is reached. If a visitor wishes to
     * generate Lists of path elements to each leaf, it should keep a Stack data
     * structure of nodes passed to it with addNode, and removing top items for
     * every subtractNode() call.
     */
    public void processPath() {
    }

    /**
     * @see Command#getActionNames()
     */
    @Override
    public Set<String> getActionNames() {
        return commands;
    }
}