source: contrib/MailArchiver/sources/vendor/mime4j/apache-mime4j-0.7-SNAPSHOT-20110327.010440-17/dom/src/main/java/org/apache/james/mime4j/message/SimpleContentHandler.java @ 6785

Revision 6785, 3.0 KB checked in by rafaelraymundo, 12 years ago (diff)

Ticket #2946 - Liberado codigo do MailArchiver?. Documentação na subpasta DOCS.

Line 
1/****************************************************************
2 * Licensed to the Apache Software Foundation (ASF) under one   *
3 * or more contributor license agreements.  See the NOTICE file *
4 * distributed with this work for additional information        *
5 * regarding copyright ownership.  The ASF licenses this file   *
6 * to you under the Apache License, Version 2.0 (the            *
7 * "License"); you may not use this file except in compliance   *
8 * with the License.  You may obtain a copy of the License at   *
9 *                                                              *
10 *   http://www.apache.org/licenses/LICENSE-2.0                 *
11 *                                                              *
12 * Unless required by applicable law or agreed to in writing,   *
13 * software distributed under the License is distributed on an  *
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
15 * KIND, either express or implied.  See the License for the    *
16 * specific language governing permissions and limitations      *
17 * under the License.                                           *
18 ****************************************************************/
19
20package org.apache.james.mime4j.message;
21
22import org.apache.james.mime4j.MimeException;
23import org.apache.james.mime4j.codec.DecodeMonitor;
24import org.apache.james.mime4j.dom.Header;
25import org.apache.james.mime4j.dom.field.Field;
26import org.apache.james.mime4j.field.DefaultFieldParser;
27import org.apache.james.mime4j.parser.AbstractContentHandler;
28import org.apache.james.mime4j.stream.RawField;
29
30/**
31 * Abstract implementation of ContentHandler that automates common
32 * tasks. Currently performs header parsing.
33 *
34 * Older versions of this class performed decoding of content streams.
35 * This can be now easily achieved by calling setContentDecoding(true) on the MimeStreamParser.
36 */
37public abstract class SimpleContentHandler extends AbstractContentHandler {
38
39    private final DecodeMonitor monitor;
40   
41    public SimpleContentHandler(final DecodeMonitor monitor) {
42        super();
43        this.monitor = monitor;
44    }
45   
46    public SimpleContentHandler() {
47        this(null);
48    }
49   
50    /**
51     * Called after headers are parsed.
52     */
53    public abstract void headers(Header header);
54
55    /* Implement introduced callbacks. */
56
57    private Header currHeader;
58
59    /**
60     * @see org.apache.james.mime4j.parser.AbstractContentHandler#startHeader()
61     */
62    @Override
63    public final void startHeader() {
64        currHeader = new HeaderImpl();
65    }
66
67    /**
68     * @see org.apache.james.mime4j.parser.AbstractContentHandler#field(RawField)
69     */
70    @Override
71    public final void field(RawField field) throws MimeException {
72        Field parsedField = DefaultFieldParser.parse(field.getRaw(), monitor);
73        currHeader.addField(parsedField);
74    }
75
76    /**
77     * @see org.apache.james.mime4j.parser.AbstractContentHandler#endHeader()
78     */
79    @Override
80    public final void endHeader() {
81        Header tmp = currHeader;
82        currHeader = null;
83        headers(tmp);
84    }
85
86}
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