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
020 package org.apache.james.mime4j.field;
021
022 import org.apache.james.mime4j.codec.DecodeMonitor;
023 import org.apache.james.mime4j.dom.FieldParser;
024 import org.apache.james.mime4j.dom.field.ContentLocationField;
025 import org.apache.james.mime4j.stream.Field;
026 import org.apache.james.mime4j.stream.ParserCursor;
027 import org.apache.james.mime4j.stream.RawField;
028 import org.apache.james.mime4j.stream.RawFieldParser;
029 import org.apache.james.mime4j.util.ByteSequence;
030 import org.apache.james.mime4j.util.CharsetUtil;
031 import org.apache.james.mime4j.util.ContentUtil;
032
033 /**
034 * Represents a <code>Content-Location</code> field.
035 */
036 public class ContentLocationFieldLenientImpl extends AbstractField implements ContentLocationField {
037
038 private boolean parsed = false;
039 private String location;
040
041 ContentLocationFieldLenientImpl(Field rawField, DecodeMonitor monitor) {
042 super(rawField, monitor);
043 }
044
045 private void parse() {
046 parsed = true;
047 location = null;
048 RawField f = getRawField();
049 ByteSequence buf = f.getRaw();
050 int pos = f.getDelimiterIdx() + 1;
051 if (buf == null) {
052 String body = f.getBody();
053 if (body == null) {
054 return;
055 }
056 buf = ContentUtil.encode(body);
057 pos = 0;
058 }
059 RawFieldParser parser = RawFieldParser.DEFAULT;
060 ParserCursor cursor = new ParserCursor(pos, buf.length());
061 String token = parser.parseValue(buf, cursor, null);
062 StringBuilder sb = new StringBuilder(token.length());
063 for (int i = 0; i < token.length(); i++) {
064 char ch = token.charAt(i);
065 if (!CharsetUtil.isWhitespace(ch)) {
066 sb.append(ch);
067 }
068 }
069 this.location = sb.toString();
070 }
071
072 public String getLocation() {
073 if (!parsed) {
074 parse();
075 }
076 return location;
077 }
078
079 public static final FieldParser<ContentLocationField> PARSER = new FieldParser<ContentLocationField>() {
080
081 public ContentLocationField parse(final Field rawField, final DecodeMonitor monitor) {
082 return new ContentLocationFieldLenientImpl(rawField, monitor);
083 }
084
085 };
086
087 }
088