| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you under the Apache License, Version 2.0 (the * |
| * "License"); you may not use this file except in compliance * |
| * with the License. You may obtain a copy of the License at * |
| * * |
| * http://www.apache.org/licenses/LICENSE-2.0 * |
| * * |
| * Unless required by applicable law or agreed to in writing, * |
| * software distributed under the License is distributed on an * |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
| * KIND, either express or implied. See the License for the * |
| * specific language governing permissions and limitations * |
| * under the License. * |
| ****************************************************************/ |
| |
| package org.apache.james.mime4j.field; |
| |
| import java.util.ArrayList; |
| import java.util.BitSet; |
| import java.util.List; |
| |
| import org.apache.james.mime4j.codec.DecodeMonitor; |
| import org.apache.james.mime4j.dom.FieldParser; |
| import org.apache.james.mime4j.dom.field.ContentLanguageField; |
| import org.apache.james.mime4j.stream.Field; |
| import org.apache.james.mime4j.stream.ParserCursor; |
| import org.apache.james.mime4j.stream.RawField; |
| import org.apache.james.mime4j.stream.RawFieldParser; |
| import org.apache.james.mime4j.util.ByteSequence; |
| import org.apache.james.mime4j.util.ContentUtil; |
| |
| /** |
| * Represents a <code>Content-Transfer-Encoding</code> field. |
| */ |
| public class ContentLanguageFieldLenientImpl extends AbstractField implements ContentLanguageField { |
| |
| private final static int COMMA = ','; |
| private final static BitSet DELIM = RawFieldParser.INIT_BITSET(COMMA); |
| |
| private boolean parsed = false; |
| private List<String> languages; |
| |
| ContentLanguageFieldLenientImpl(final Field rawField, final DecodeMonitor monitor) { |
| super(rawField, monitor); |
| } |
| |
| private void parse() { |
| parsed = true; |
| languages = new ArrayList<String>(); |
| RawField f = getRawField(); |
| ByteSequence buf = f.getRaw(); |
| int pos = f.getDelimiterIdx() + 1; |
| if (buf == null) { |
| String body = f.getBody(); |
| if (body == null) { |
| return; |
| } |
| buf = ContentUtil.encode(body); |
| pos = 0; |
| } |
| RawFieldParser parser = RawFieldParser.DEFAULT; |
| ParserCursor cursor = new ParserCursor(pos, buf.length()); |
| for (;;) { |
| String token = parser.parseToken(buf, cursor, DELIM); |
| if (token.length() > 0) { |
| languages.add(token); |
| } |
| if (cursor.atEnd()) { |
| break; |
| } else { |
| pos = cursor.getPos(); |
| if (buf.byteAt(pos) == COMMA) { |
| cursor.updatePos(pos + 1); |
| } |
| } |
| } |
| } |
| |
| public List<String> getLanguages() { |
| if (!parsed) { |
| parse(); |
| } |
| return new ArrayList<String>(languages); |
| } |
| |
| public static final FieldParser<ContentLanguageField> PARSER = new FieldParser<ContentLanguageField>() { |
| |
| public ContentLanguageField parse(final Field rawField, final DecodeMonitor monitor) { |
| return new ContentLanguageFieldLenientImpl(rawField, monitor); |
| } |
| |
| }; |
| |
| } |
| |