/* ***** BEGIN LICENSE BLOCK *****
    * Version: MPL 1.1/GPL 2.0/LGPL 2.1
    *
    * The contents of this file are subject to the Mozilla Public License Version
    * 1.1 (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.mozilla.org/MPL/
    *
    * Software distributed under the License is distributed on an "AS IS" basis,
   * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
   * for the specific language governing rights and limitations under the
   * License.
   *
   * The Original Code is "SMS Library for the Java platform".
   *
   * The Initial Developer of the Original Code is Markus Eriksson.
   * Portions created by the Initial Developer are Copyright (C) 2002
   * the Initial Developer. All Rights Reserved.
   *
   * Contributor(s):
   *
   * Alternatively, the contents of this file may be used under the terms of
   * either the GNU General Public License Version 2 or later (the "GPL"), or
   * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
   * in which case the provisions of the GPL or the LGPL are applicable instead
   * of those above. If you wish to allow use of your version of this file only
   * under the terms of either the GPL or the LGPL, and not to allow others to
   * use your version of this file under the terms of the MPL, indicate your
   * decision by deleting the provisions above and replace them with the notice
   * and other provisions required by the GPL or the LGPL. If you do not delete
   * the provisions above, a recipient may use your version of this file under
   * the terms of any one of the MPL, the GPL or the LGPL.
   *
   * ***** END LICENSE BLOCK ***** */
  package org.marre.mime;
  
  import java.util.*;
  
  /***
   * Represents a MIME body part.
   * 
   * A body part can contain headers and a body.
   * 
   * @author Markus Eriksson
   * @version $Id: MimeBodyPart.java,v 1.9 2004/11/02 17:59:47 c95men Exp $
   */
  public class MimeBodyPart
  {
      protected byte[] myBody;
      protected MimeContentType myContentType;
  
      protected List myHeaders;
  
      /***
       * Creates a new empty MimeBodyPart.
       */
      public MimeBodyPart()
      {
          myHeaders = new LinkedList();
      }
  
      /***
       * Creates a new empty MimeBodyPart.
       */
      public MimeBodyPart(byte[] body, MimeContentType contentType)
      {
          this();
          setContent(body, contentType);
      }
      
      /***
       * Creates a new empty MimeBodyPart.
       */
      public MimeBodyPart(byte[] body, String contentType)
      {
          this();
          setContent(body, contentType);
      }
      
      /***
       * Adds a mime header to this body part.
       * 
       * @param theHeader The header to add
       */
      public void addHeader(MimeHeader theHeader)
      {
          myHeaders.add(theHeader);
      }
  
      /***
       * Adds a eader to this body part.
       * 
       * @param theHeaderName The name of the header
       * @param theHeaderValue The value
       */
      public void addHeader(String theHeaderName, String theHeaderValue)
      {
          MimeHeader header = getHeader(theHeaderName);
          if (header != null)
         {
             myHeaders.remove(header);
             header = null;
         }
         addHeader(new MimeHeader(theHeaderName, theHeaderValue));
     }
 
     /***
      * Retrieves a header with the given index.
      * 
      * @param theIndex Index of header to retrieve
      * @return The header, or null if not found
      */
     public MimeHeader getHeader(int theIndex)
     {
         return (MimeHeader) myHeaders.get(theIndex);
     }
 
     /***
      * Retrieves a header with the given name.
      * 
      * @param headerName The name of the header to find
      * @return The header, or null if not found
      */
     public MimeHeader getHeader(String headerName)
     {
         Iterator iter = myHeaders.iterator();
         
         while (iter.hasNext())
         {
             MimeHeader header = (MimeHeader) iter.next();
             
             if (header.getName().equalsIgnoreCase(headerName))
             {
                 return header;
             }
         }
         
         return null;
     }
     
     /***
      * Returns the number of headers.
      * 
      * @return The number of headers
      */
     public int getHeaderCount()
     {
         return myHeaders.size();
     }
 
     /***
      * Sets the main content of this body part.
      * 
      * @param theContent The main content
      * @param theContentType The content-type of the content
      */
     public void setContent(byte[] theContent, String theContentType)
     {
         myBody = new byte[theContent.length];
         System.arraycopy(theContent, 0, myBody, 0, theContent.length);
         myContentType = new MimeContentType(theContentType);
     }
 
     /***
      * Sets the main content of this body part.
      * 
      * @param theContent The main content
      * @param theContentType The content type
      */
     public void setContent(byte[] theContent, MimeContentType theContentType)
     {
         myBody = new byte[theContent.length];
         System.arraycopy(theContent, 0, myBody, 0, theContent.length);
         myContentType = theContentType;
     }
     
     /***
      * Sets the "Content-Id" header.
      * 
      * @param theContentId The content-id
      */
     public void setContentId(String theContentId)
     {
         addHeader("Content-Id", theContentId);
     }
 
     /***
      * Sets the "Content-Location" header.
      * 
      * @param theContentLocation The content-location
      */
     public void setContentLocation(String theContentLocation)
     {
         addHeader("Content-Location", theContentLocation);
     }
     
     /***
      * Returns the content of this body part.
      * 
      * @return The content
      */
     public byte[] getBody()
     {
         byte[] bodyCopy = null;
         
         if (myBody != null)
         {
             bodyCopy = new byte[myBody.length];
             System.arraycopy(myBody, 0, bodyCopy, 0, myBody.length);
         }
         
         return bodyCopy;
     }
 
     /***
      * Returns the size of the body in this body part.
      * 
      * @return The size of the body
      */
     public int getBodySize()
     {
         return myBody.length;
     }
 
     /***
      * Returns the content type.
      * 
      * @return The content type
      */
     public MimeContentType getContentType()
     {
         return myContentType;
     }
 }