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Java > Open Source Codes > org > apache > axis > encoding > ser > CalendarDeserializer


1 /*
2  * Copyright 2001-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.axis.encoding.ser;
18
19 import org.apache.axis.utils.Messages;
20
21 import javax.xml.namespace.QName JavaDoc;
22 import java.text.SimpleDateFormat JavaDoc;
23 import java.util.Calendar JavaDoc;
24 import java.util.Date JavaDoc;
25 import java.util.GregorianCalendar JavaDoc;
26 import java.util.TimeZone JavaDoc;
27
28 /**
29  * The CalendarSerializer deserializes a dateTime.
30  * Much of the work is done in the base class.
31  *
32  * @author Sam Ruby (rubys@us.ibm.com)
33  * Modified for JAX-RPC @author Rich Scheuerle (scheu@us.ibm.com)
34  */
35 public class CalendarDeserializer extends SimpleDeserializer {
36
37     private static SimpleDateFormat JavaDoc zulu =
38             new SimpleDateFormat JavaDoc("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
39     // 0123456789 0 123456789
40
41     static {
42         zulu.setTimeZone(TimeZone.getTimeZone("GMT"));
43     }
44
45     /**
46      * The Deserializer is constructed with the xmlType and
47      * javaType
48      */
49     public CalendarDeserializer(Class JavaDoc javaType, QName JavaDoc xmlType) {
50         super(javaType, xmlType);
51     }
52
53     /**
54      * The simple deserializer provides most of the stuff.
55      * We just need to override makeValue().
56      */
57     public Object JavaDoc makeValue(String JavaDoc source) {
58         Calendar JavaDoc calendar = Calendar.getInstance();
59         Date JavaDoc date;
60         boolean bc = false;
61
62         // validate fixed portion of format
63 if (source == null || source.length() == 0) {
64             throw new NumberFormatException JavaDoc(
65                     Messages.getMessage("badDateTime00"));
66         }
67         if (source.charAt(0) == '+') {
68             source = source.substring(1);
69         }
70         if (source.charAt(0) == '-') {
71             source = source.substring(1);
72             bc = true;
73         }
74         if (source.length() < 19) {
75             throw new NumberFormatException JavaDoc(
76                     Messages.getMessage("badDateTime00"));
77         }
78         if (source.charAt(4) != '-' || source.charAt(7) != '-' ||
79                 source.charAt(10) != 'T') {
80             throw new NumberFormatException JavaDoc(Messages.getMessage("badDate00"));
81         }
82         if (source.charAt(13) != ':' || source.charAt(16) != ':') {
83             throw new NumberFormatException JavaDoc(Messages.getMessage("badTime00"));
84         }
85         // convert what we have validated so far
86 try {
87             synchronized (zulu) {
88                 date = zulu.parse(source.substring(0, 19) + ".000Z");
89             }
90         } catch (Exception JavaDoc e) {
91             throw new NumberFormatException JavaDoc(e.toString());
92         }
93         int pos = 19;
94
95         // parse optional milliseconds
96 if (pos < source.length() && source.charAt(pos) == '.') {
97             int milliseconds = 0;
98             int start = ++pos;
99             while (pos < source.length() &&
100                     Character.isDigit(source.charAt(pos))) {
101                 pos++;
102             }
103             String JavaDoc decimal = source.substring(start, pos);
104             if (decimal.length() == 3) {
105                 milliseconds = Integer.parseInt(decimal);
106             } else if (decimal.length() < 3) {
107                 milliseconds = Integer.parseInt((decimal + "000")
108                         .substring(0, 3));
109             } else {
110                 milliseconds = Integer.parseInt(decimal.substring(0, 3));
111                 if (decimal.charAt(3) >= '5') {
112                     ++milliseconds;
113                 }
114             }
115
116             // add milliseconds to the current date
117 date.setTime(date.getTime() + milliseconds);
118         }
119
120         // parse optional timezone
121 if (pos + 5 < source.length() &&
122                 (source.charAt(pos) == '+' || (source.charAt(pos) == '-'))) {
123             if (!Character.isDigit(source.charAt(pos + 1)) ||
124                     !Character.isDigit(source.charAt(pos + 2)) ||
125                     source.charAt(pos + 3) != ':' ||
126                     !Character.isDigit(source.charAt(pos + 4)) ||
127                     !Character.isDigit(source.charAt(pos + 5))) {
128                 throw new NumberFormatException JavaDoc(
129                         Messages.getMessage("badTimezone00"));
130             }
131             int hours = (source.charAt(pos + 1) - '0') * 10
132                     + source.charAt(pos + 2) - '0';
133             int mins = (source.charAt(pos + 4) - '0') * 10
134                     + source.charAt(pos + 5) - '0';
135             int milliseconds = (hours * 60 + mins) * 60 * 1000;
136
137             // subtract milliseconds from current date to obtain GMT
138 if (source.charAt(pos) == '+') {
139                 milliseconds = -milliseconds;
140             }
141             date.setTime(date.getTime() + milliseconds);
142             pos += 6;
143         }
144         if (pos < source.length() && source.charAt(pos) == 'Z') {
145             pos++;
146             calendar.setTimeZone(TimeZone.getTimeZone("GMT"));
147         }
148         if (pos < source.length()) {
149             throw new NumberFormatException JavaDoc(Messages.getMessage("badChars00"));
150         }
151         calendar.setTime(date);
152
153         // support dates before the Christian era
154 if (bc) {
155             calendar.set(Calendar.ERA, GregorianCalendar.BC);
156         }
157         if (super.javaType == Date JavaDoc.class) {
158             return date;
159         } else {
160             return calendar;
161         }
162     }
163 }
164
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