Java XML Format printAttributeValue(Element node, String prefix)

Description

Print SAML Attribute Element and replace its prefix with the input prefix.

License

Open Source License

Parameter

Parameter	Description
node	A DOM tree Node
prefix	A String representing the new prefix

Return

An xml String representation of the DOM tree.

Declaration

public static String printAttributeValue(Element node, String prefix) 

Method Source Code

//package com.java2s;
/**/*from   ww  w .  j  av  a2  s. c o  m*/
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2005 Sun Microsystems Inc. All Rights Reserved
 *
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License). You may not use this file except in
 * compliance with the License.
 *
 * You can obtain a copy of the License at
 * https://opensso.dev.java.net/public/CDDLv1.0.html or
 * opensso/legal/CDDLv1.0.txt
 * See the License for the specific language governing
 * permission and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at opensso/legal/CDDLv1.0.txt.
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * $Id: XMLUtils.java,v 1.5 2008-06-25 05:41:28 qcheng Exp $
 *
 */

import java.io.ByteArrayOutputStream;

import java.util.HashSet;

import java.util.Set;

import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Attr;

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

public class Main {
    /**
     * Print SAML Attribute Element and replace its prefix with the input
     * prefix.
     * 
     * @param node
     *            A DOM tree Node
     * @param prefix
     *            A String representing the new prefix
     * @return An xml String representation of the DOM tree.
     */
    public static String printAttributeValue(Element node, String prefix) {
        if (node == null) {
            return null;
        }

        StringBuffer xml = new StringBuffer(100);
        xml.append('<');
        xml.append(prefix).append(node.getLocalName());
        NamedNodeMap attrs = node.getAttributes();
        int length = attrs.getLength();
        for (int i = 0; i < length; i++) {
            Attr attr = (Attr) attrs.item(i);
            xml.append(' ');
            xml.append(attr.getNodeName());
            xml.append("=\"");
            // xml.append(normalize(attr.getNodeValue()));
            xml.append(attr.getNodeValue());
            xml.append('"');
        }
        xml.append('>');
        NodeList children = node.getChildNodes();
        if (children != null) {
            int len = children.getLength();
            for (int i = 0; i < len; i++) {
                xml.append(print(children.item(i)));
            }
        }
        xml.append("</");
        xml.append(prefix).append(node.getLocalName());
        xml.append('>');

        return xml.toString();

    }

    public static Set getChildNodes(Node parentNode, String childName) {
        Set retVal = new HashSet();
        NodeList children = parentNode.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            Node node = children.item(i);
            if (node.getNodeName().equalsIgnoreCase(childName)) {
                retVal.add(node);
            }
        }
        return (retVal);
    }

    /**
     * Print a Node tree recursively.
     * 
     * @param node
     *            A DOM tree Node
     * @return An xml String representation of the DOM tree.
     */
    public static String print(Node node) {
        if (node == null) {
            return null;
        }

        try {
            TransformerFactory tFactory = TransformerFactory.newInstance();
            Transformer transformer = tFactory.newTransformer();
            transformer.setOutputProperty("omit-xml-declaration", "yes");
            DOMSource source = new DOMSource(node);
            ByteArrayOutputStream os = new ByteArrayOutputStream(2000);
            StreamResult result = new StreamResult(os);
            transformer.transform(source, result);
            return os.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}

Related

1. print(Node node)
2. print(Node node, OutputStream out)
3. print(Node node, String encoding)
4. print(Node node, Writer out, boolean omitdecl)
5. print(SOAPMessage msg, OutputStream out)
6. printNode(Node n)
7. printNode(Node node)
8. printNode(Node node, String fn)
9. printNode(OutputStream out, Node node, boolean prettyPrint, boolean includeXmlDeclaration)