JMeter example source code file (XMLDefaultMutableTreeNode.java)

This example JMeter source code file (XMLDefaultMutableTreeNode.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

attr, constructor, defaultmutabletreenode, defaultmutabletreenode, dom, jtree, node, nodelist, non-nls-1, non-nls-2, sax, saxexception, saxexception, string, string, tree, xmldefaultmutabletreenode, xmldefaultmutabletreenode

The JMeter XMLDefaultMutableTreeNode.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.visualizers;

import javax.swing.tree.DefaultMutableTreeNode;

import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;
import org.w3c.dom.Attr;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Comment;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.SAXException;

/**
 * A extended class of DefaultMutableTreeNode except that it also attached XML
 * node and convert XML document into DefaultMutableTreeNode.
 *
 */
public class XMLDefaultMutableTreeNode extends DefaultMutableTreeNode {
    private static final long serialVersionUID = 240L;

    private static final Logger log = LoggingManager.getLoggerForClass();
    // private static final int LIMIT_STR_SIZE = 100;
    // private boolean isRoot;
    private transient Node xmlNode;

    /**
     * @deprecated only for use by test code
     */
    @Deprecated
    public XMLDefaultMutableTreeNode(){
        log.warn("Constructor only intended for use in testing"); // $NON-NLS-1$
    }

    public XMLDefaultMutableTreeNode(Node root) throws SAXException {
        super(root.getNodeName());
        initAttributeNode(root, this);
        initRoot(root);

    }

    public XMLDefaultMutableTreeNode(String name, Node xmlNode) {
        super(name);
        this.xmlNode = xmlNode;

    }

    /**
     * init root
     *
     * @param root
     * @throws SAXException
     */
    private void initRoot(Node xmlRoot) throws SAXException {

        NodeList childNodes = xmlRoot.getChildNodes();
        for (int i = 0; i < childNodes.getLength(); i++) {
            Node childNode = childNodes.item(i);
            initNode(childNode, this);
        }

    }

    /**
     * init node
     *
     * @param node
     * @param mTreeNode
     * @throws SAXException
     */
    private void initNode(Node node, XMLDefaultMutableTreeNode mTreeNode) throws SAXException {

        switch (node.getNodeType()) {
        case Node.ELEMENT_NODE:
            initElementNode(node, mTreeNode);
            break;

        case Node.TEXT_NODE:
            initTextNode((Text) node, mTreeNode);
            break;

        case Node.CDATA_SECTION_NODE:
            initCDATASectionNode((CDATASection) node, mTreeNode);
            break;
        case Node.COMMENT_NODE:
            initCommentNode((Comment) node, mTreeNode);
            break;

        default:
            // if other node type, we will just skip it
            break;

        }

    }

    /**
     * init element node
     *
     * @param node
     * @param mTreeNode
     * @throws SAXException
     */
    private void initElementNode(Node node, DefaultMutableTreeNode mTreeNode) throws SAXException {
        String nodeName = node.getNodeName();

        NodeList childNodes = node.getChildNodes();
        XMLDefaultMutableTreeNode childTreeNode = new XMLDefaultMutableTreeNode(nodeName, node);

        mTreeNode.add(childTreeNode);
        initAttributeNode(node, childTreeNode);
        for (int i = 0; i < childNodes.getLength(); i++) {
            Node childNode = childNodes.item(i);
            initNode(childNode, childTreeNode);
        }

    }

    /**
     * init attribute node
     *
     * @param node
     * @param mTreeNode
     * @throws SAXException
     */
    private void initAttributeNode(Node node, DefaultMutableTreeNode mTreeNode) throws SAXException {
        NamedNodeMap nm = node.getAttributes();
        for (int i = 0; i < nm.getLength(); i++) {
            Attr nmNode = (Attr) nm.item(i);
            String value = nmNode.getName() + " = \"" + nmNode.getValue() + "\""; // $NON-NLS-1$ $NON-NLS-2$
            XMLDefaultMutableTreeNode attributeNode = new XMLDefaultMutableTreeNode(value, nmNode);
            mTreeNode.add(attributeNode);

        }
    }

    /**
     * init comment Node
     *
     * @param node
     * @param mTreeNode
     * @throws SAXException
     */
    private void initCommentNode(Comment node, DefaultMutableTreeNode mTreeNode) throws SAXException {
        String data = node.getData();
        if (data != null && data.length() > 0) {
            String value = "<!--" + node.getData() + "-->"; // $NON-NLS-1$ $NON-NLS-2$
            XMLDefaultMutableTreeNode commentNode = new XMLDefaultMutableTreeNode(value, node);
            mTreeNode.add(commentNode);
        }
    }

    /**
     * init CDATASection Node
     *
     * @param node
     * @param mTreeNode
     * @throws SAXException
     */
    private void initCDATASectionNode(CDATASection node, DefaultMutableTreeNode mTreeNode) throws SAXException {
        String data = node.getData();
        if (data != null && data.length() > 0) {
            String value = "<!-[CDATA" + node.getData() + "]]>"; // $NON-NLS-1$ $NON-NLS-2$
            XMLDefaultMutableTreeNode commentNode = new XMLDefaultMutableTreeNode(value, node);
            mTreeNode.add(commentNode);
        }
    }

    /**
     * init the TextNode
     *
     * @param node
     * @param mTreeNode
     * @throws SAXException
     */
    private void initTextNode(Text node, DefaultMutableTreeNode mTreeNode) throws SAXException {
        String text = node.getNodeValue().trim();
        if (text != null && text.length() > 0) {
            XMLDefaultMutableTreeNode textNode = new XMLDefaultMutableTreeNode(text, node);
            mTreeNode.add(textNode);
        }
    }

    /**
     * get the xml node
     *
     * @return the XML node
     */
    public Node getXMLNode() {
        return xmlNode;
    }
}