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 *
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015 * KIND, either express or implied. See the License for the *
016 * specific language governing permissions and limitations *
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019
020 package org.apache.james.mime4j.field;
021
022 import java.util.Collections;
023
024 import org.apache.james.mime4j.codec.DecodeMonitor;
025 import org.apache.james.mime4j.dom.FieldParser;
026 import org.apache.james.mime4j.dom.address.AddressList;
027 import org.apache.james.mime4j.dom.address.Mailbox;
028 import org.apache.james.mime4j.dom.field.AddressListField;
029 import org.apache.james.mime4j.field.address.LenientAddressBuilder;
030 import org.apache.james.mime4j.stream.Field;
031 import org.apache.james.mime4j.stream.ParserCursor;
032 import org.apache.james.mime4j.stream.RawField;
033 import org.apache.james.mime4j.util.ByteSequence;
034 import org.apache.james.mime4j.util.ContentUtil;
035
036 /**
037 * Address list field such as <code>To</code> or <code>Reply-To</code>.
038 */
039 public class AddressListFieldLenientImpl extends AbstractField implements AddressListField {
040
041 private boolean parsed = false;
042
043 private AddressList addressList;
044
045 AddressListFieldLenientImpl(final Field rawField, final DecodeMonitor monitor) {
046 super(rawField, monitor);
047 }
048
049 public AddressList getAddressList() {
050 if (!parsed)
051 parse();
052
053 return addressList;
054 }
055
056 private void parse() {
057 parsed = true;
058 RawField f = getRawField();
059 ByteSequence buf = f.getRaw();
060 int pos = f.getDelimiterIdx() + 1;
061 if (buf == null) {
062 String body = f.getBody();
063 if (body == null) {
064 addressList = new AddressList(Collections.<Mailbox>emptyList(), true);
065 return;
066 }
067 buf = ContentUtil.encode(body);
068 pos = 0;
069 }
070 ParserCursor cursor = new ParserCursor(pos, buf.length());
071 addressList = LenientAddressBuilder.DEFAULT.parseAddressList(buf, cursor);
072 }
073
074 public static final FieldParser<AddressListField> PARSER = new FieldParser<AddressListField>() {
075
076 public AddressListField parse(final Field rawField, final DecodeMonitor monitor) {
077 return new AddressListFieldLenientImpl(rawField, monitor);
078 }
079
080 };
081
082 }