| /** |
| * |
| * Copyright 2003-2004 The Apache Software Foundation |
| * |
| * 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. |
| */ |
| |
| package javax.mail; |
| |
| /** |
| * The context in which a piece of message content is contained. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class MessageContext { |
| private final Part part; |
| |
| /** |
| * Create a MessageContext object describing the context of the supplied Part. |
| * |
| * @param part the containing part |
| */ |
| public MessageContext(Part part) { |
| this.part = part; |
| } |
| |
| /** |
| * Return the {@link Part} that contains the content. |
| * |
| * @return the part |
| */ |
| public Part getPart() { |
| return part; |
| } |
| |
| /** |
| * Return the message that contains the content; if the Part is a {@link Multipart} |
| * then recurse up the chain until a {@link Message} is found. |
| * |
| * @return |
| */ |
| public Message getMessage() { |
| return getMessageFrom(part); |
| } |
| |
| /** |
| * Return the session associated with the Message containing this Part. |
| * |
| * @return the session associated with this context's root message |
| */ |
| public Session getSession() { |
| Message message = getMessage(); |
| if (message == null) { |
| return null; |
| } else { |
| return message.session; |
| } |
| } |
| |
| // recurse up the chain of MultiPart/BodyPart paris until we hit a message |
| private Message getMessageFrom(Part p) { |
| while (p != null) { |
| if (p instanceof Message) { |
| return (Message) p; |
| } |
| Multipart mp = ((BodyPart) p).getParent(); |
| if (mp == null) { |
| return null; |
| } |
| p = mp.getParent(); |
| } |
| return null; |
| } |
| } |