| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you 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 org.apache.james.mime4j.message; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.james.mime4j.util.ByteSequence; |
| import org.apache.james.mime4j.util.ContentUtil; |
| |
| /** |
| * Represents a MIME multipart body (see RFC 2045).A multipart body has a |
| * ordered list of body parts. The multipart body also has a preamble and |
| * epilogue. The preamble consists of whatever characters appear before the |
| * first body part while the epilogue consists of whatever characters come after |
| * the last body part. |
| */ |
| public class Multipart implements Body { |
| |
| private List<BodyPart> bodyParts = new LinkedList<BodyPart>(); |
| private Entity parent = null; |
| |
| private ByteSequence preamble; |
| private transient String preambleStrCache; |
| private ByteSequence epilogue; |
| private transient String epilogueStrCache; |
| |
| private String subType; |
| |
| /** |
| * Creates a new empty <code>Multipart</code> instance. |
| */ |
| public Multipart(String subType) { |
| preamble = ByteSequence.EMPTY; |
| preambleStrCache = ""; |
| epilogue = ByteSequence.EMPTY; |
| epilogueStrCache = ""; |
| |
| this.subType = subType; |
| } |
| |
| /** |
| * Creates a new <code>Multipart</code> from the specified |
| * <code>Multipart</code>. The <code>Multipart</code> instance is |
| * initialized with copies of preamble, epilogue, sub type and the list of |
| * body parts of the specified <code>Multipart</code>. The parent entity |
| * of the new multipart is <code>null</code>. |
| * |
| * @param other |
| * multipart to copy. |
| * @throws UnsupportedOperationException |
| * if <code>other</code> contains a {@link SingleBody} that |
| * does not support the {@link SingleBody#copy() copy()} |
| * operation. |
| * @throws IllegalArgumentException |
| * if <code>other</code> contains a <code>Body</code> that |
| * is neither a {@link Message}, {@link Multipart} or |
| * {@link SingleBody}. |
| */ |
| public Multipart(Multipart other) { |
| preamble = other.preamble; |
| preambleStrCache = other.preambleStrCache; |
| epilogue = other.epilogue; |
| epilogueStrCache = other.epilogueStrCache; |
| |
| for (BodyPart otherBodyPart : other.bodyParts) { |
| BodyPart bodyPartCopy = new BodyPart(otherBodyPart); |
| addBodyPart(bodyPartCopy); |
| } |
| |
| subType = other.subType; |
| } |
| |
| /** |
| * Gets the multipart sub-type. E.g. <code>alternative</code> (the |
| * default) or <code>parallel</code>. See RFC 2045 for common sub-types |
| * and their meaning. |
| * |
| * @return the multipart sub-type. |
| */ |
| public String getSubType() { |
| return subType; |
| } |
| |
| /** |
| * Sets the multipart sub-type. E.g. <code>alternative</code> or |
| * <code>parallel</code>. See RFC 2045 for common sub-types and their |
| * meaning. |
| * |
| * @param subType |
| * the sub-type. |
| */ |
| public void setSubType(String subType) { |
| this.subType = subType; |
| } |
| |
| /** |
| * @see org.apache.james.mime4j.message.Body#getParent() |
| */ |
| public Entity getParent() { |
| return parent; |
| } |
| |
| /** |
| * @see org.apache.james.mime4j.message.Body#setParent(org.apache.james.mime4j.message.Entity) |
| */ |
| public void setParent(Entity parent) { |
| this.parent = parent; |
| for (BodyPart bodyPart : bodyParts) { |
| bodyPart.setParent(parent); |
| } |
| } |
| |
| /** |
| * Returns the number of body parts. |
| * |
| * @return number of <code>BodyPart</code> objects. |
| */ |
| public int getCount() { |
| return bodyParts.size(); |
| } |
| |
| /** |
| * Gets the list of body parts. The list is immutable. |
| * |
| * @return the list of <code>BodyPart</code> objects. |
| */ |
| public List<BodyPart> getBodyParts() { |
| return Collections.unmodifiableList(bodyParts); |
| } |
| |
| /** |
| * Sets the list of body parts. |
| * |
| * @param bodyParts |
| * the new list of <code>BodyPart</code> objects. |
| */ |
| public void setBodyParts(List<BodyPart> bodyParts) { |
| this.bodyParts = bodyParts; |
| for (BodyPart bodyPart : bodyParts) { |
| bodyPart.setParent(parent); |
| } |
| } |
| |
| /** |
| * Adds a body part to the end of the list of body parts. |
| * |
| * @param bodyPart |
| * the body part. |
| */ |
| public void addBodyPart(BodyPart bodyPart) { |
| if (bodyPart == null) |
| throw new IllegalArgumentException(); |
| |
| bodyParts.add(bodyPart); |
| bodyPart.setParent(parent); |
| } |
| |
| /** |
| * Inserts a body part at the specified position in the list of body parts. |
| * |
| * @param bodyPart |
| * the body part. |
| * @param index |
| * index at which the specified body part is to be inserted. |
| * @throws IndexOutOfBoundsException |
| * if the index is out of range (index < 0 || index > |
| * getCount()). |
| */ |
| public void addBodyPart(BodyPart bodyPart, int index) { |
| if (bodyPart == null) |
| throw new IllegalArgumentException(); |
| |
| bodyParts.add(index, bodyPart); |
| bodyPart.setParent(parent); |
| } |
| |
| /** |
| * Removes the body part at the specified position in the list of body |
| * parts. |
| * |
| * @param index |
| * index of the body part to be removed. |
| * @return the removed body part. |
| * @throws IndexOutOfBoundsException |
| * if the index is out of range (index < 0 || index >= |
| * getCount()). |
| */ |
| public BodyPart removeBodyPart(int index) { |
| BodyPart bodyPart = bodyParts.remove(index); |
| bodyPart.setParent(null); |
| return bodyPart; |
| } |
| |
| /** |
| * Replaces the body part at the specified position in the list of body |
| * parts with the specified body part. |
| * |
| * @param bodyPart |
| * body part to be stored at the specified position. |
| * @param index |
| * index of body part to replace. |
| * @return the replaced body part. |
| * @throws IndexOutOfBoundsException |
| * if the index is out of range (index < 0 || index >= |
| * getCount()). |
| */ |
| public BodyPart replaceBodyPart(BodyPart bodyPart, int index) { |
| if (bodyPart == null) |
| throw new IllegalArgumentException(); |
| |
| BodyPart replacedBodyPart = bodyParts.set(index, bodyPart); |
| if (bodyPart == replacedBodyPart) |
| throw new IllegalArgumentException( |
| "Cannot replace body part with itself"); |
| |
| bodyPart.setParent(parent); |
| replacedBodyPart.setParent(null); |
| |
| return replacedBodyPart; |
| } |
| |
| // package private for now; might become public someday |
| ByteSequence getPreambleRaw() { |
| return preamble; |
| } |
| |
| void setPreambleRaw(ByteSequence preamble) { |
| this.preamble = preamble; |
| this.preambleStrCache = null; |
| } |
| |
| /** |
| * Gets the preamble. |
| * |
| * @return the preamble. |
| */ |
| public String getPreamble() { |
| if (preambleStrCache == null) { |
| preambleStrCache = ContentUtil.decode(preamble); |
| } |
| return preambleStrCache; |
| } |
| |
| /** |
| * Sets the preamble. |
| * |
| * @param preamble |
| * the preamble. |
| */ |
| public void setPreamble(String preamble) { |
| this.preamble = ContentUtil.encode(preamble); |
| this.preambleStrCache = preamble; |
| } |
| |
| // package private for now; might become public someday |
| ByteSequence getEpilogueRaw() { |
| return epilogue; |
| } |
| |
| void setEpilogueRaw(ByteSequence epilogue) { |
| this.epilogue = epilogue; |
| this.epilogueStrCache = null; |
| } |
| |
| /** |
| * Gets the epilogue. |
| * |
| * @return the epilogue. |
| */ |
| public String getEpilogue() { |
| if (epilogueStrCache == null) { |
| epilogueStrCache = ContentUtil.decode(epilogue); |
| } |
| return epilogueStrCache; |
| } |
| |
| /** |
| * Sets the epilogue. |
| * |
| * @param epilogue |
| * the epilogue. |
| */ |
| public void setEpilogue(String epilogue) { |
| this.epilogue = ContentUtil.encode(epilogue); |
| this.epilogueStrCache = epilogue; |
| } |
| |
| /** |
| * Disposes of the BodyParts of this Multipart. Note that the dispose call |
| * does not get forwarded to the parent entity of this Multipart. |
| * |
| * @see org.apache.james.mime4j.message.Disposable#dispose() |
| */ |
| public void dispose() { |
| for (BodyPart bodyPart : bodyParts) { |
| bodyPart.dispose(); |
| } |
| } |
| |
| } |