Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*L
 *  Copyright RTI International
 *
 *  Distributed under the OSI-approved BSD 3-Clause License.
 *  See http://ncip.github.com/webgenome/LICENSE.txt for details.
 */

import java.util.Enumeration;
import java.util.Properties;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    /**
     * Find element in XML document with given property
     * @param doc XML document
     * @param tagName Tag name
     * @param propName Property name
     * @param propValue Property value
     * @return Element or null if not found
     */
    public static Element findElement(Document doc, String tagName, String propName, String propValue) {
        Properties props = new Properties();
        props.put(propName, propValue);
        return findElement(doc, tagName, props);
    }

    /**
     * Find an element
     * @param doc XML document
     * @param tagName Tag name
     * @param props Properties corresponding to attributes in tag
     * @return Element or null if not found
     */
    public static Element findElement(Document doc, String tagName, Properties props) {
        Element elmt = null;
        NodeList nlist = doc.getElementsByTagName(tagName);
        for (int i = 0; i < nlist.getLength() && elmt == null; i++) {
            Node node = nlist.item(i);
            if (node instanceof Element) {
                Element temp = (Element) node;
                boolean matches = true;
                for (Enumeration en = props.keys(); en.hasMoreElements() && matches;) {
                    String name = (String) en.nextElement();
                    String value = props.getProperty(name);
                    String attValue = temp.getAttribute(name);
                    if (attValue == null)
                        matches = false;
                    else if (!value.equals(attValue))
                        matches = false;
                }
                if (matches)
                    elmt = temp;
            }
        }
        return elmt;
    }
}