Java XML Node Format formatNode(Node node, int indent, StringBuffer stringBuffer)

Description

format Node

License

Open Source License

Declaration

private static StringBuffer formatNode(Node node, int indent, StringBuffer stringBuffer) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2009 CollabNet./*from   w ww .j  a v a 2  s.c  om*/
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     CollabNet - initial API and implementation
 ******************************************************************************/

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

public class Main {
    private static StringBuffer formatNode(Node node, StringBuffer stringBuffer) {
        return formatNode(node, 0, stringBuffer);
    }

    private static StringBuffer formatNode(Node node, int indent, StringBuffer stringBuffer) {
        int type = node.getNodeType();
        switch (type) {
        case Node.DOCUMENT_NODE: {
            stringBuffer.append("<?xml version=\"1.0\" ?>\n"); //$NON-NLS-1$
            stringBuffer = formatNode(((Document) node).getDocumentElement(), indent, stringBuffer);
            break;
        }

        case Node.ELEMENT_NODE: {
            if (indent > 0)
                stringBuffer.append("\n"); //$NON-NLS-1$
            for (int i = 0; i < indent; i++)
                stringBuffer.append(" "); //$NON-NLS-1$
            stringBuffer.append("<" + node.getNodeName()); //$NON-NLS-1$
            NamedNodeMap attrs = node.getAttributes();
            for (int i = 0; i < attrs.getLength(); i++) {
                Node attr = attrs.item(i);
                stringBuffer.append("\n"); //$NON-NLS-1$
                for (int j = 0; j < indent; j++)
                    stringBuffer.append(" "); //$NON-NLS-1$
                stringBuffer.append("   " + attr.getNodeName().trim() + //$NON-NLS-1$
                        "=\"" + attr.getNodeValue().trim() + //$NON-NLS-1$
                        "\""); //$NON-NLS-1$
            }
            stringBuffer.append(">"); //$NON-NLS-1$

            indent = indent + 3;
            NodeList children = node.getChildNodes();
            if (children != null) {
                int len = children.getLength();
                for (int i = 0; i < len; i++)
                    stringBuffer = formatNode(children.item(i), indent, stringBuffer);
            }
            indent = indent - 3;
            break;
        }

        case Node.ENTITY_REFERENCE_NODE: {
            stringBuffer.append("&"); //$NON-NLS-1$
            stringBuffer.append(node.getNodeName().trim());
            stringBuffer.append(";"); //$NON-NLS-1$
            break;
        }

        case Node.CDATA_SECTION_NODE: {
            stringBuffer.append("<![CDATA["); //$NON-NLS-1$
            stringBuffer.append(node.getNodeValue().trim());
            stringBuffer.append("]]>"); //$NON-NLS-1$
            break;
        }

        case Node.TEXT_NODE: {
            stringBuffer.append("\n"); //$NON-NLS-1$
            for (int i = 0; i < indent; i++)
                stringBuffer.append(" "); //$NON-NLS-1$
            stringBuffer.append(node.getNodeValue().trim());
            break;
        }

        case Node.PROCESSING_INSTRUCTION_NODE: {
            stringBuffer.append("<?"); //$NON-NLS-1$
            stringBuffer.append(node.getNodeName().trim());
            String data = node.getNodeValue().trim();
            {
                stringBuffer.append(" "); //$NON-NLS-1$
                stringBuffer.append(data);
            }
            stringBuffer.append("?>"); //$NON-NLS-1$
            break;
        }
        }

        if (type == Node.ELEMENT_NODE) {
            stringBuffer.append("\n"); //$NON-NLS-1$
            for (int i = 0; i < indent; i++)
                stringBuffer.append(" "); //$NON-NLS-1$
            stringBuffer.append("</"); //$NON-NLS-1$
            stringBuffer.append(node.getNodeName().trim());
            stringBuffer.append('>');
        }
        return stringBuffer;
    }
}

Related

1. print(PrintStream out, Node node)
2. printNode(StringBuffer sBuffer, Node node)
3. printTree(Writer ps, Node node, String indent, String lineSeparator)
4. renderNode(StringBuffer sb, Node node)