| /**************************************************************** |
| * 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.HashMap; |
| import java.util.Map; |
| |
| import org.apache.james.mime4j.codec.DecodeMonitor; |
| import org.apache.james.mime4j.dom.field.ParsedField; |
| import org.apache.james.mime4j.stream.Field; |
| import org.apache.james.mime4j.stream.FieldParser; |
| |
| public class DelegatingFieldParser implements FieldParser<ParsedField> { |
| |
| private final FieldParser<? extends ParsedField> defaultParser; |
| private final Map<String, FieldParser<? extends ParsedField>> parsers; |
| |
| public DelegatingFieldParser(final FieldParser<? extends ParsedField> defaultParser) { |
| super(); |
| this.defaultParser = defaultParser; |
| this.parsers = new HashMap<String, FieldParser<? extends ParsedField>>(); |
| } |
| |
| /** |
| * Sets the parser used for the field named <code>name</code>. |
| * @param name the name of the field |
| * @param parser the parser for fields named <code>name</code> |
| */ |
| public void setFieldParser(final String name, final FieldParser<? extends ParsedField> parser) { |
| parsers.put(name.toLowerCase(), parser); |
| } |
| |
| public FieldParser<? extends ParsedField> getParser(final String name) { |
| final FieldParser<? extends ParsedField> field = parsers.get(name.toLowerCase()); |
| if (field == null) { |
| return defaultParser; |
| } |
| return field; |
| } |
| |
| public ParsedField parse(final Field rawField, final DecodeMonitor monitor) { |
| final FieldParser<? extends ParsedField> parser = getParser(rawField.getName()); |
| return parser.parse(rawField, monitor); |
| } |
| } |