Java XML Node Save writeXMLwalkTree(Node node, int indent, PrintWriter out)

Description

write XM Lwalk Tree

License

Apache License

Declaration

protected static void writeXMLwalkTree(Node node, int indent, PrintWriter out) 

Method Source Code

//package com.java2s;
/*/*from   w  ww. j  a  v a 2 s  .c om*/
 * @(#)$Id: XMLCommon.java 116 2008-10-30 06:12:51Z unsaved $
 *
 * Copyright 2008 by the JWebMail Development Team and Sebastian Schaffert.
 *
 * Licensed 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.
 */

import java.io.PrintWriter;

import org.w3c.dom.Attr;
import org.w3c.dom.CDATASection;

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

public class Main {
    protected static void writeXMLwalkTree(Node node, int indent, PrintWriter out) {
        if (node == null)
            throw new NullPointerException("Null node passed to writeXMLwalkTree()");
        if (node.hasChildNodes()) {
            if (node instanceof Element) {
                Element elem = (Element) node;
                //elem.normalize();
                out.print("\n");
                for (int j = 0; j < indent; j++) {
                    out.print(" ");
                }
                out.print("<" + elem.getTagName());
                NamedNodeMap attrs = elem.getAttributes();
                for (int i = 0; i < attrs.getLength(); i++) {
                    Attr a = (Attr) attrs.item(i);
                    out.print(" " + a.getName() + "=\"" + a.getValue() + "\"");
                }
                out.print(">");
                NodeList nl = node.getChildNodes();
                for (int i = 0; i < nl.getLength(); i++) {
                    writeXMLwalkTree(nl.item(i), indent + 2, out);
                }
                //              for(int j=0;j<indent;j++) {
                //                  out.print(" ");
                //              }
                out.println("</" + elem.getTagName() + ">");
            }
        } else {
            if (node instanceof Element) {
                Element elem = (Element) node;
                out.print("\n");
                for (int j = 0; j < indent; j++) {
                    out.print(" ");
                }
                out.print("<" + elem.getTagName());
                NamedNodeMap attrs = elem.getAttributes();
                for (int i = 0; i < attrs.getLength(); i++) {
                    Attr a = (Attr) attrs.item(i);
                    out.print(" " + a.getName() + "=\"" + a.getValue() + "\"");
                }
                out.println("/>");
            } else if (node instanceof CDATASection) {
                CDATASection cdata = (CDATASection) node;
                //              for(int j=0;j<indent;j++) {
                //                  out.print(" ");
                //              }
                out.print("<![CDATA[" + cdata.getData() + "]]>");
            } else if (node instanceof Text) {
                Text text = (Text) node;
                StringBuilder buf = new StringBuilder(text.getData().length());
                for (int i = 0; i < text.getData().length(); i++) {
                    if (text.getData().charAt(i) == '\n' || text.getData().charAt(i) == '\r'
                            || text.getData().charAt(i) == ' ' || text.getData().charAt(i) == '\t') {
                        if (buf.length() > 0 && buf.charAt(buf.length() - 1) != ' ') {
                            buf.append(' ');
                        }
                    } else {
                        buf.append(text.getData().charAt(i));
                    }
                }
                if (buf.length() > 0 && !buf.toString().equals(" ")) {
                    StringBuilder buf2 = new StringBuilder(buf.length() + indent);
                    //                  for(int j=0;j<indent;j++) {
                    //                      buf2.append(' ');
                    //                  }
                    buf2.append(buf.toString());
                    out.print(buf2);
                }
            }
        }
    }
}

Related

1. writeNode(PrintWriter w, Node node, int depth)
2. writeToStream(OutputStream os, Node node)
3. writeToString(Node node)
4. writeToString(Node node)
5. writeXml(final Node node)
6. writeXMLwithXALAN(final Writer writer, final Node node, final String xmlEncoding)
7. writeXMLwithXALAN(final Writer writer, final Node node, final String xmlEncoding)
8. xmlSelectNodes0(List list, Node node, String path[], int n)
9. xmltostring(String indent, Node node)