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.field; 021 022import org.apache.james.mime4j.codec.DecodeMonitor; 023import org.apache.james.mime4j.codec.DecoderUtil; 024import org.apache.james.mime4j.dom.FieldParser; 025import org.apache.james.mime4j.dom.field.UnstructuredField; 026import org.apache.james.mime4j.stream.Field; 027 028/** 029 * Simple unstructured field such as <code>Subject</code>. 030 */ 031public class UnstructuredFieldImpl extends AbstractField implements UnstructuredField { 032 private boolean parsed = false; 033 034 private String value; 035 036 UnstructuredFieldImpl(Field rawField, DecodeMonitor monitor) { 037 super(rawField, monitor); 038 } 039 040 /** 041 * @see org.apache.james.mime4j.dom.field.UnstructuredField#getValue() 042 */ 043 public String getValue() { 044 if (!parsed) 045 parse(); 046 047 return value; 048 } 049 050 private void parse() { 051 String body = getBody(); 052 053 value = DecoderUtil.decodeEncodedWords(body, monitor); 054 055 parsed = true; 056 } 057 058 public static final FieldParser<UnstructuredField> PARSER = new FieldParser<UnstructuredField>() { 059 060 public UnstructuredField parse(final Field rawField, final DecodeMonitor monitor) { 061 return new UnstructuredFieldImpl(rawField, monitor); 062 } 063 064 }; 065 066}