Java XML Document to Stream writeXML(Document d, OutputStream os, String sysID)

Description

write XML

License

Apache License

Declaration

public static void writeXML(Document d, OutputStream os, String sysID) throws IOException 

Method Source Code

//package com.java2s;
/*/* ww  w  .  j a v  a  2  s.co m*/
 * @(#)$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.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;

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

import org.w3c.dom.Document;
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 {
    public static void writeXML(Document d, OutputStream os, String sysID) throws IOException {
        /**
         * To support i18n, we have to specify the encoding of
         * output writer to UTF-8 when we writing the XML.
         */
        // PrintWriter out=new PrintWriter(os);
        PrintWriter out = new PrintWriter(new OutputStreamWriter(os, "UTF-8"));

        out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        out.println();
        if (sysID != null) {
            out.println("<!DOCTYPE " + d.getDoctype().getName() + " SYSTEM \"" + sysID + "\">");
            out.println();
        }
        //d.getDocumentElement().normalize();
        writeXMLwalkTree(d.getDocumentElement(), 0, out);
        out.flush();
    }

    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. writeDOMDocumentToStream(Document doc, OutputStream stream)
2. writeOutDocument(OutputStream os, Document doc)
3. writeTransformedXml(Document doc, OutputStream output, InputStream style)
4. writeXerces(Document doc, OutputStream out, String encoding)
5. writeXHTML(Document htmldoc, OutputStream out)
6. writeXML(Document d, OutputStream out)
7. writeXML(Document doc, OutputStream os)
8. writeXML(Document doc, OutputStream os)
9. writeXML(Document doc, OutputStream out)