[6785] | 1 | /**************************************************************** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one * |
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| 3 | * or more contributor license agreements. See the NOTICE file * |
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| 4 | * distributed with this work for additional information * |
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| 5 | * regarding copyright ownership. The ASF licenses this file * |
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| 6 | * to you under the Apache License, Version 2.0 (the * |
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| 7 | * "License"); you may not use this file except in compliance * |
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| 8 | * with the License. You may obtain a copy of the License at * |
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| 9 | * * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
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| 11 | * * |
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| 12 | * Unless required by applicable law or agreed to in writing, * |
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| 13 | * software distributed under the License is distributed on an * |
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| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
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| 15 | * KIND, either express or implied. See the License for the * |
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| 16 | * specific language governing permissions and limitations * |
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| 17 | * under the License. * |
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| 18 | ****************************************************************/ |
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| 19 | |
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| 20 | package org.apache.james.mime4j.field; |
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| 21 | |
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| 22 | import java.util.HashMap; |
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| 23 | import java.util.Map; |
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| 24 | |
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| 25 | import org.apache.james.mime4j.codec.DecodeMonitor; |
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| 26 | import org.apache.james.mime4j.dom.field.ParsedField; |
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| 27 | import org.apache.james.mime4j.util.ByteSequence; |
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| 28 | |
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| 29 | public class DelegatingFieldParser implements FieldParser<ParsedField> { |
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| 30 | private static final FieldParser<UnstructuredFieldImpl> DEFAULT_PARSER = UnstructuredFieldImpl.PARSER; |
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| 31 | |
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| 32 | private Map<String, FieldParser<? extends ParsedField>> parsers = new HashMap<String, FieldParser<? extends ParsedField>>(); |
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| 33 | |
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| 34 | /** |
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| 35 | * Sets the parser used for the field named <code>name</code>. |
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| 36 | * @param name the name of the field |
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| 37 | * @param parser the parser for fields named <code>name</code> |
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| 38 | */ |
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| 39 | public void setFieldParser(final String name, final FieldParser<? extends ParsedField> parser) { |
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| 40 | parsers.put(name.toLowerCase(), parser); |
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| 41 | } |
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| 42 | |
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| 43 | public FieldParser<? extends ParsedField> getParser(final String name) { |
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| 44 | final FieldParser<? extends ParsedField> field = parsers.get(name.toLowerCase()); |
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| 45 | if (field == null) { |
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| 46 | return DEFAULT_PARSER; |
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| 47 | } |
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| 48 | return field; |
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| 49 | } |
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| 50 | |
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| 51 | public ParsedField parse(final String name, final String body, final ByteSequence raw, DecodeMonitor monitor) { |
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| 52 | final FieldParser<? extends ParsedField> parser = getParser(name); |
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| 53 | return parser.parse(name, body, raw, monitor); |
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| 54 | } |
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| 55 | } |
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