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Java > Open Source Codes > org > jboss > axis > encoding > ser > EnumSerializer


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
6  * reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
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20  * 3. The end-user documentation included with the redistribution,
21  * if any, must include the following acknowledgment:
22  * "This product includes software developed by the
23  * Apache Software Foundation (http://www.apache.org/)."
24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
26  *
27  * 4. The names "Axis" and "Apache Software Foundation" must
28  * not be used to endorse or promote products derived from this
29  * software without prior written permission. For written
30  * permission, please contact apache@apache.org.
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32  * 5. Products derived from this software may not be called "Apache",
33  * nor may "Apache" appear in their name, without prior written
34  * permission of the Apache Software Foundation.
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36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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50  * This software consists of voluntary contributions made by many
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53  * <http://www.apache.org/>.
54  */

55
56 package org.jboss.axis.encoding.ser;
57
58 import org.jboss.axis.encoding.SerializationContext;
59 import org.jboss.axis.utils.Messages;
60 import org.jboss.axis.wsdl.fromJava.Types;
61 import org.jboss.logging.Logger;
62 import org.w3c.dom.Element JavaDoc;
63 import org.xml.sax.Attributes JavaDoc;
64
65 import javax.xml.namespace.QName JavaDoc;
66 import java.io.IOException JavaDoc;
67
68 /**
69  * Serializer for a JAX-RPC enums.
70  *
71  * @author Rich Scheuerle <scheu@us.ibm.com>
72  * @author Sam Ruby <rubys@us.ibm.com>
73  */

74 public class EnumSerializer extends SimpleSerializer
75 {
76    private static Logger log = Logger.getLogger(EnumSerializer.class.getName());
77
78    private java.lang.reflect.Method JavaDoc toStringMethod = null;
79
80    public EnumSerializer(Class JavaDoc javaType, QName JavaDoc xmlType)
81    {
82       super(javaType, xmlType);
83    }
84
85    /**
86     * Serialize an enumeration
87     */

88    public void serialize(QName JavaDoc name, Attributes JavaDoc attributes,
89                          Object JavaDoc value, SerializationContext context)
90            throws IOException JavaDoc
91    {
92       context.startElement(name, attributes);
93       context.writeString(getValueAsString(value, context));
94       context.endElement();
95    }
96
97    public String JavaDoc getValueAsString(Object JavaDoc value, SerializationContext context)
98    {
99       // Invoke the toString method on the enumeration class and
100
// write out the result as a string.
101
try
102       {
103          if (toStringMethod == null)
104          {
105             toStringMethod = javaType.getMethod("toString", null);
106          }
107          return (String JavaDoc)toStringMethod.invoke(value, null);
108       }
109       catch (Exception JavaDoc e)
110       {
111          log.error(Messages.getMessage("exception00"), e);
112       }
113       return null;
114    }
115
116    /**
117     * Return XML schema for the specified type, suitable for insertion into
118     * the &lt;types&gt; element of a WSDL document, or underneath an
119     * &lt;element&gt; or &lt;attribute&gt; declaration.
120     *
121     * @param javaType the Java Class we're writing out schema for
122     * @param types the Java2WSDL Types object which holds the context
123     * for the WSDL being generated.
124     * @return a type element containing a schema simpleType/complexType
125     * @see org.jboss.axis.wsdl.fromJava.Types
126     */

127    public Element JavaDoc writeSchema(Class JavaDoc javaType, Types types) throws Exception JavaDoc
128    {
129       // Use Types helper method.
130
return types.writeEnumType(xmlType, javaType);
131    }
132 }
133
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