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


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.Constants;
20 import org.apache.axis.encoding.SerializationContext;
21 import org.apache.axis.encoding.SimpleValueSerializer;
22 import org.apache.axis.wsdl.fromJava.Types;
23 import org.w3c.dom.Element JavaDoc;
24 import org.xml.sax.Attributes JavaDoc;
25
26 import javax.xml.namespace.QName JavaDoc;
27 import java.io.IOException JavaDoc;
28 import java.text.SimpleDateFormat JavaDoc;
29 import java.util.Calendar JavaDoc;
30 import java.util.Date JavaDoc;
31 import java.util.GregorianCalendar JavaDoc;
32
33 /**
34  * Serializer for Dates.
35  *
36  * @author Sam Ruby <rubys@us.ibm.com>
37  * Modified by @author Rich scheuerle <scheu@us.ibm.com>
38  * @see <a HREF="http://www.w3.org/TR/xmlschema-2/#dateTime">XML Schema 3.2.16</a>
39  */
40 public class DateSerializer implements SimpleValueSerializer {
41
42     private static SimpleDateFormat JavaDoc zulu =
43        new SimpleDateFormat JavaDoc("yyyy-MM-dd");
44
45     private static Calendar JavaDoc calendar = Calendar.getInstance();
46
47     /**
48      * Serialize a Date.
49      */
50     public void serialize(QName JavaDoc name, Attributes JavaDoc attributes,
51                           Object JavaDoc value, SerializationContext context)
52         throws IOException JavaDoc
53     {
54         context.startElement(name, attributes);
55         context.writeString(getValueAsString(value, context));
56         context.endElement();
57     }
58
59     public String JavaDoc getValueAsString(Object JavaDoc value, SerializationContext context) {
60         StringBuffer JavaDoc buf = new StringBuffer JavaDoc();
61         synchronized (calendar) {
62             if(value instanceof Calendar JavaDoc) {
63                 value = ((Calendar JavaDoc)value).getTime();
64             }
65             if (calendar.get(Calendar.ERA) == GregorianCalendar.BC) {
66                 buf.append("-");
67                 calendar.setTime((Date JavaDoc)value);
68                 calendar.set(Calendar.ERA, GregorianCalendar.AD);
69                 value = calendar.getTime();
70             }
71             buf.append(zulu.format((Date JavaDoc)value));
72         }
73         return buf.toString();
74     }
75
76     public String JavaDoc getMechanismType() { return Constants.AXIS_SAX; }
77
78     /**
79      * Return XML schema for the specified type, suitable for insertion into
80      * the &lt;types&gt; element of a WSDL document, or underneath an
81      * &lt;element&gt; or &lt;attribute&gt; declaration.
82      *
83      * @param javaType the Java Class we're writing out schema for
84      * @param types the Java2WSDL Types object which holds the context
85      * for the WSDL being generated.
86      * @return a type element containing a schema simpleType/complexType
87      * @see org.apache.axis.wsdl.fromJava.Types
88      */
89     public Element JavaDoc writeSchema(Class JavaDoc javaType, Types types) throws Exception JavaDoc {
90         return null;
91     }
92 }
93
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