All Downloads are FREE. Search and download functionalities are using the official Maven repository.

javax.mail.Multipart Maven / Gradle / Ivy

There is a newer version: 1.6.2
Show newest version
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package javax.mail;

import java.util.Vector;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import javax.activation.DataSource;

/**
 * Multipart is a container that holds multiple body parts. Multipart
 * provides methods to retrieve and set its subparts. 

* * Multipart also acts as the base class for the content object returned * by most Multipart DataContentHandlers. For example, invoking getContent() * on a DataHandler whose source is a "multipart/signed" data source may * return an appropriate subclass of Multipart.

* * Some messaging systems provide different subtypes of Multiparts. For * example, MIME specifies a set of subtypes that include "alternative", * "mixed", "related", "parallel", "signed", etc.

* * Multipart is an abstract class. Subclasses provide actual implementations. * * @author John Mani */ public abstract class Multipart { /** * Vector of BodyPart objects. */ protected Vector parts = new Vector(); // Holds BodyParts /** * This field specifies the content-type of this multipart * object. It defaults to "multipart/mixed". */ protected String contentType = "multipart/mixed"; // Content-Type /** * The Part containing this Multipart, * if known. * @since JavaMail 1.1 */ protected Part parent; /** * Default constructor. An empty Multipart object is created. */ protected Multipart() { } /** * Setup this Multipart object from the given MultipartDataSource.

* * The method adds the MultipartDataSource's BodyPart * objects into this Multipart. This Multipart's contentType is * set to that of the MultipartDataSource.

* * This method is typically used in those cases where one * has a multipart data source that has already been pre-parsed into * the individual body parts (for example, an IMAP datasource), but * needs to create an appropriate Multipart subclass that represents * a specific multipart subtype. * * @param mp Multipart datasource * @exception MessagingException for failures */ protected synchronized void setMultipartDataSource(MultipartDataSource mp) throws MessagingException { contentType = mp.getContentType(); int count = mp.getCount(); for (int i = 0; i < count; i++) addBodyPart(mp.getBodyPart(i)); } /** * Return the content-type of this Multipart.

* * This implementation just returns the value of the * contentType field. * * @return content-type * @see #contentType */ public synchronized String getContentType() { return contentType; } /** * Return the number of enclosed BodyPart objects.

* * @return number of parts * @exception MessagingException for failures * @see #parts */ public synchronized int getCount() throws MessagingException { if (parts == null) return 0; return parts.size(); } /** * Get the specified Part. Parts are numbered starting at 0. * * @param index the index of the desired Part * @return the Part * @exception IndexOutOfBoundsException if the given index * is out of range. * @exception MessagingException for other failures */ public synchronized BodyPart getBodyPart(int index) throws MessagingException { if (parts == null) throw new IndexOutOfBoundsException("No such BodyPart"); return (BodyPart)parts.elementAt(index); } /** * Remove the specified part from the multipart message. * Shifts all the parts after the removed part down one. * * @param part The part to remove * @return true if part removed, false otherwise * @exception MessagingException if no such Part exists * @exception IllegalWriteException if the underlying * implementation does not support modification * of existing values */ public synchronized boolean removeBodyPart(BodyPart part) throws MessagingException { if (parts == null) throw new MessagingException("No such body part"); boolean ret = parts.removeElement(part); part.setParent(null); return ret; } /** * Remove the part at specified location (starting from 0). * Shifts all the parts after the removed part down one. * * @param index Index of the part to remove * @exception IndexOutOfBoundsException if the given index * is out of range. * @exception IllegalWriteException if the underlying * implementation does not support modification * of existing values * @exception MessagingException for other failures */ public synchronized void removeBodyPart(int index) throws MessagingException { if (parts == null) throw new IndexOutOfBoundsException("No such BodyPart"); BodyPart part = (BodyPart)parts.elementAt(index); parts.removeElementAt(index); part.setParent(null); } /** * Adds a Part to the multipart. The BodyPart is appended to * the list of existing Parts. * * @param part The Part to be appended * @exception IllegalWriteException if the underlying * implementation does not support modification * of existing values * @exception MessagingException for other failures */ public synchronized void addBodyPart(BodyPart part) throws MessagingException { if (parts == null) parts = new Vector(); parts.addElement(part); part.setParent(this); } /** * Adds a BodyPart at position index. * If index is not the last one in the list, * the subsequent parts are shifted up. If index * is larger than the number of parts present, the * BodyPart is appended to the end. * * @param part The BodyPart to be inserted * @param index Location where to insert the part * @exception IllegalWriteException if the underlying * implementation does not support modification * of existing values * @exception MessagingException for other failures */ public synchronized void addBodyPart(BodyPart part, int index) throws MessagingException { if (parts == null) parts = new Vector(); parts.insertElementAt(part, index); part.setParent(this); } /** * Output an appropriately encoded bytestream to the given * OutputStream. The implementation subclass decides the * appropriate encoding algorithm to be used. The bytestream * is typically used for sending. * * @param os the stream to write to * @exception IOException if an IO related exception occurs * @exception MessagingException for other failures */ public abstract void writeTo(OutputStream os) throws IOException, MessagingException; /** * Return the Part that contains this Multipart * object, or null if not known. * * @return the parent Part * @since JavaMail 1.1 */ public synchronized Part getParent() { return parent; } /** * Set the parent of this Multipart to be the specified * Part. Normally called by the Message * or BodyPart setContent(Multipart) method. * parent may be null if the * Multipart is being removed from its containing * Part. * * @param parent the parent Part * @since JavaMail 1.1 */ public synchronized void setParent(Part parent) { this.parent = parent; } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy