001/****************************************************************
002 * Licensed to the Apache Software Foundation (ASF) under one   *
003 * or more contributor license agreements.  See the NOTICE file *
004 * distributed with this work for additional information        *
005 * regarding copyright ownership.  The ASF licenses this file   *
006 * to you under the Apache License, Version 2.0 (the            *
007 * "License"); you may not use this file except in compliance   *
008 * with the License.  You may obtain a copy of the License at   *
009 *                                                              *
010 *   http://www.apache.org/licenses/LICENSE-2.0                 *
011 *                                                              *
012 * Unless required by applicable law or agreed to in writing,   *
013 * software distributed under the License is distributed on an  *
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
015 * KIND, either express or implied.  See the License for the    *
016 * specific language governing permissions and limitations      *
017 * under the License.                                           *
018 ****************************************************************/
019
020package org.apache.james.mime4j.dom;
021
022import java.io.IOException;
023import java.io.InputStream;
024
025import org.apache.james.mime4j.MimeException;
026
027/**
028 * An interface to build instances of {@link Message} and other DOM elements either without
029 * any content, by copying content of an existing object or by reading content from
030 * an {@link InputStream}.
031 */
032public interface MessageBuilder {
033
034    Header newHeader();
035
036    Header newHeader(Header source);
037
038    Multipart newMultipart(String subType);
039
040    Multipart newMultipart(Multipart source);
041
042    Message newMessage();
043
044    Message newMessage(Message source);
045
046    Header parseHeader(InputStream source) throws MimeException, IOException;
047
048    Message parseMessage(InputStream source) throws MimeException, IOException;
049
050}