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comparison src/org/eclipse/jetty/util/ajax/JSONDateConvertor.java @ 802:3428c60d7cfc

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replace jetty jars with source
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:15:48 -0600
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801:6a21393191c1 802:3428c60d7cfc
1 //
2 // ========================================================================
3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.util.ajax;
20
21 import java.text.DateFormatSymbols;
22 import java.text.SimpleDateFormat;
23 import java.util.Date;
24 import java.util.Locale;
25 import java.util.Map;
26 import java.util.TimeZone;
27
28 import org.eclipse.jetty.util.DateCache;
29 import org.eclipse.jetty.util.ajax.JSON.Output;
30 import org.eclipse.jetty.util.log.Log;
31 import org.eclipse.jetty.util.log.Logger;
32
33 /* ------------------------------------------------------------ */
34 /**
35 * Convert a {@link Date} to JSON.
36 * If fromJSON is true in the constructor, the JSON generated will
37 * be of the form {class="java.util.Date",value="1/1/1970 12:00 GMT"}
38 * If fromJSON is false, then only the string value of the date is generated.
39 */
40 public class JSONDateConvertor implements JSON.Convertor
41 {
42 private static final Logger LOG = Log.getLogger(JSONDateConvertor.class);
43
44 private final boolean _fromJSON;
45 private final DateCache _dateCache;
46 private final SimpleDateFormat _format;
47
48 public JSONDateConvertor()
49 {
50 this(false);
51 }
52
53 public JSONDateConvertor(boolean fromJSON)
54 {
55 this(DateCache.DEFAULT_FORMAT,TimeZone.getTimeZone("GMT"),fromJSON);
56 }
57
58 public JSONDateConvertor(String format,TimeZone zone,boolean fromJSON)
59 {
60 _dateCache=new DateCache(format);
61 _dateCache.setTimeZone(zone);
62 _fromJSON=fromJSON;
63 _format=new SimpleDateFormat(format);
64 _format.setTimeZone(zone);
65 }
66
67 public JSONDateConvertor(String format, TimeZone zone, boolean fromJSON, Locale locale)
68 {
69 _dateCache = new DateCache(format, locale);
70 _dateCache.setTimeZone(zone);
71 _fromJSON = fromJSON;
72 _format = new SimpleDateFormat(format, new DateFormatSymbols(locale));
73 _format.setTimeZone(zone);
74 }
75
76 public Object fromJSON(Map map)
77 {
78 if (!_fromJSON)
79 throw new UnsupportedOperationException();
80 try
81 {
82 synchronized(_format)
83 {
84 return _format.parseObject((String)map.get("value"));
85 }
86 }
87 catch(Exception e)
88 {
89 LOG.warn(e);
90 }
91 return null;
92 }
93
94 public void toJSON(Object obj, Output out)
95 {
96 String date = _dateCache.format((Date)obj);
97 if (_fromJSON)
98 {
99 out.addClass(obj.getClass());
100 out.add("value",date);
101 }
102 else
103 {
104 out.add(date);
105 }
106 }
107 }