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.parser; 021 022import org.apache.james.mime4j.MimeException; 023import org.apache.james.mime4j.stream.BodyDescriptor; 024import org.apache.james.mime4j.stream.Field; 025 026import java.io.IOException; 027import java.io.InputStream; 028 029/** 030 * Abstract base class for custom {@link ContentHandler} implementations. Methods of this class 031 * take no action and are expected to be selectively overridden by super-classes. 032 */ 033public abstract class AbstractContentHandler implements ContentHandler { 034 035 public void endMultipart() throws MimeException { 036 } 037 038 public void startMultipart(BodyDescriptor bd) throws MimeException { 039 } 040 041 public void body(BodyDescriptor bd, InputStream is) 042 throws MimeException, IOException { 043 } 044 045 public void endBodyPart() throws MimeException { 046 } 047 048 public void endHeader() throws MimeException { 049 } 050 051 public void endMessage() throws MimeException { 052 } 053 054 public void epilogue(InputStream is) throws MimeException, IOException { 055 } 056 057 public void field(Field field) throws MimeException { 058 } 059 060 public void preamble(InputStream is) throws MimeException, IOException { 061 } 062 063 public void startBodyPart() throws MimeException { 064 } 065 066 public void startHeader() throws MimeException { 067 } 068 069 public void startMessage() throws MimeException { 070 } 071 072 public void raw(InputStream is) throws MimeException, IOException { 073 } 074 075}