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.stream; 021 022import org.apache.james.mime4j.util.ByteSequence; 023import org.apache.james.mime4j.util.CharsetUtil; 024import org.apache.james.mime4j.util.ContentUtil; 025import org.apache.james.mime4j.util.MimeUtil; 026 027/** 028 * Raw (unstructured) MIME field. The field's body is unparsed and possibly encoded. 029 * <p/> 030 * Instances of this class can be created by using 031 * {@link RawFieldParser#parseField(ByteSequence)} method. 032 */ 033public final class RawField implements Field { 034 035 private final ByteSequence raw; 036 private final int delimiterIdx; 037 private final String name; 038 private final String body; 039 040 RawField(ByteSequence raw, int delimiterIdx, String name, String body) { 041 if (name == null) { 042 throw new IllegalArgumentException("Field may not be null"); 043 } 044 this.raw = raw; 045 this.delimiterIdx = delimiterIdx; 046 this.name = name.trim(); 047 this.body = body; 048 } 049 050 public RawField(String name, String body) { 051 this(null, -1, name, body); 052 } 053 054 public ByteSequence getRaw() { 055 return raw; 056 } 057 058 public String getName() { 059 return name; 060 } 061 062 public String getBody() { 063 if (body != null) { 064 return body; 065 } 066 if (raw != null) { 067 int len = raw.length(); 068 int off = delimiterIdx + 1; 069 if (len > off + 1 && (CharsetUtil.isWhitespace((char) (raw.byteAt(off) & 0xff)))) { 070 off++; 071 } 072 return MimeUtil.unfold(ContentUtil.decode(raw, off, len - off)); 073 } 074 return null; 075 } 076 077 public int getDelimiterIdx() { 078 return delimiterIdx; 079 } 080 081 @Override 082 public String toString() { 083 if (raw != null) { 084 return ContentUtil.decode(raw); 085 } else { 086 StringBuilder buf = new StringBuilder(); 087 buf.append(name); 088 buf.append(": "); 089 if (body != null) { 090 buf.append(body); 091 } 092 return buf.toString(); 093 } 094 } 095 096}