Java example - XMLMessagePart.java

What this is

This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.
The source code

/* CVS ID: $Id: XMLMessagePart.java,v 1.1.1.1 2002/10/02 18:42:54 wastl Exp $ */
package net.wastl.webmail.xml;

import java.util.*;

import org.w3c.dom.*;


/*
 * XMLMessagePart.java
 *
 * Created: Tue Apr 18 14:08:56 2000
 *
 * Copyright (C) 2000 Sebastian Schaffert
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

/**
 * A message part object for an XML message
 */
public class XMLMessagePart  {
    
    protected Document root;
    protected Element part;

    /**
     * Create a new part for the given root document.
     * Creates the necessary Element.
     */
    public XMLMessagePart(Document root) {
	this.part=root.createElement("PART");
	this.root=root;
    }

    /**
     * Return a new part for a given part element
     */
    public XMLMessagePart(Element part) {
	this.part=part;
	this.root=part.getOwnerDocument();
    }

    public Element getPartElement() {
	return part;
    }

    public void setAttribute(String key, String value) {
	part.setAttribute(key,value);
    }

    public String getAttribute(String key) {
	return part.getAttribute(key);
    }

    public void quoteContent() {
	NodeList nl=part.getChildNodes();
	StringBuffer text=new StringBuffer();
	for(int i=0;i<nl.getLength();i++) {
	    Element elem=(Element)nl.item(i);
	    if(elem.getNodeName().equals("CONTENT")) {
		String value=XMLCommon.getElementTextValue(elem);
		StringTokenizer tok=new StringTokenizer(value,"\n");
		while(tok.hasMoreTokens()) {
		    text.append("> ").append(tok.nextToken()).append("\n");
		}
	    }
	}
	removeAllContent();

	addContent(text.toString(),0);
    }

    /**
     * This method is designed for content that already is in DOM format, like HTML
     * messages.
     */
    public void addContent(Document content) {
	Element content_elem=root.createElement("CONTENT");
	content_elem.setAttribute("quotelevel","0");
	
	/* Find all <BODY> elements and add the child nodes to the content */
	for(int count=0; count < 2; count++) {
	    NodeList nl=content.getDocumentElement().getElementsByTagName(count==0?"BODY":"body");
	    System.err.println("While parsing HTML content: Found "+nl.getLength()+" body elements");
	    for(int i=0; i<nl.getLength();i++) {
		NodeList nl2=nl.item(i).getChildNodes();
		System.err.println("While parsing HTML content: Found "+nl2.getLength()+" child elements");
		for(int j=0;j<nl2.getLength();j++) {
		    System.err.println("Element: "+j);
		    content_elem.appendChild(XMLCommon.importNode(root,nl2.item(j),true));
		}
	    }
	}

	
	part.appendChild(content_elem);

	//XMLCommon.debugXML(root);
    }

    public void addContent(String content, int quotelevel) {
	Element content_elem=root.createElement("CONTENT");
	content_elem.setAttribute("quotelevel",quotelevel+"");
	XMLCommon.setElementTextValue(content_elem,content,true);
	part.appendChild(content_elem);
    }

    public void insertContent(String content, int quotelevel) {
	Element content_elem=root.createElement("CONTENT");
	content_elem.setAttribute("quotelevel",quotelevel+"");
	XMLCommon.setElementTextValue(content_elem,content,true);
	Node first=part.getFirstChild();	
	part.insertBefore(content_elem,first);
    }
	

    public void addJavaScript(String content) {
	Element javascript_elem=root.createElement("JAVASCRIPT");
	XMLCommon.setElementTextValue(javascript_elem,content,true);
	part.appendChild(javascript_elem);
    }

    public void removeAllContent() {
	XMLCommon.genericRemoveAll(part,"CONTENT");
    }

    public XMLMessagePart createPart(String type) {
	XMLMessagePart newpart=new XMLMessagePart(root);
	newpart.setAttribute("type",type);
	appendPart(newpart);
	return newpart;
    }

    public void insertPart(XMLMessagePart childpart) {
	Node first=part.getFirstChild();
	part.insertBefore(childpart.getPartElement(),first);
    }

    public void appendPart(XMLMessagePart childpart) {
	part.appendChild(childpart.getPartElement());
    }

    public Enumeration getParts() {
	// Sucking NodeList needs a Vector to store Elements that will be removed!
	Vector v=new Vector();
	NodeList parts=part.getChildNodes();
	for(int j=0;j<parts.getLength();j++) {
	    Element elem=(Element)parts.item(j);
	    if(elem.getTagName().equals("PART")) {
		v.addElement(new XMLMessagePart(elem));
	    }
	}
	return v.elements();
    }

    public void removePart(XMLMessagePart childpart) {
	part.removeChild(childpart.getPartElement());
    }

    public void removeAllParts() {
	XMLCommon.genericRemoveAll(part,"PART");
    }

} // XMLMessagePart
Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.
What this is

Other links

The source code

new blog posts

... this post is sponsored by my books ...
#1 New Release!	FP Best Seller