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Java > Open Source Codes > org > openejb > client > EJBResponse


1 /**
2  * Redistribution and use of this software and associated documentation
3  * ("Software"), with or without modification, are permitted provided
4  * that the following conditions are met:
5  *
6  * 1. Redistributions of source code must retain copyright
7  * statements and notices. Redistributions must also contain a
8  * copy of this document.
9  *
10  * 2. Redistributions in binary form must reproduce the
11  * above copyright notice, this list of conditions and the
12  * following disclaimer in the documentation and/or other
13  * materials provided with the distribution.
14  *
15  * 3. The name "OpenEJB" must not be used to endorse or promote
16  * products derived from this Software without prior written
17  * permission of The OpenEJB Group. For written permission,
18  * please contact dev@openejb.org.
19  *
20  * 4. Products derived from this Software may not be called "OpenEJB"
21  * nor may "OpenEJB" appear in their names without prior written
22  * permission of The OpenEJB Group. OpenEJB is a registered
23  * trademark of The OpenEJB Group.
24  *
25  * 5. Due credit should be given to the OpenEJB Project
26  * (http://www.openejb.org/).
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE OPENEJB GROUP AND CONTRIBUTORS
29  * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32  * THE OPENEJB GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39  * OF THE POSSIBILITY OF SUCH DAMAGE.
40  *
41  * Copyright 2001 (C) The OpenEJB Group. All Rights Reserved.
42  *
43  * $Id: EJBResponse.java 1912 2005-06-16 22:29:56Z jlaskowski $
44  */
45 package org.openejb.client;
46
47 import java.io.IOException JavaDoc;
48 import java.io.ObjectInput JavaDoc;
49 import java.io.ObjectOutput JavaDoc;
50
51 /**
52  *
53  * @author <a HREF="mailto:david.blevins@visi.com">David Blevins</a>
54  * @since 11/25/2001
55  */
56 public class EJBResponse implements Response {
57     
58
59     private transient int responseCode = -1;
60     private transient Object JavaDoc result;
61
62     public EJBResponse(){
63
64     }
65
66     public EJBResponse(int code, Object JavaDoc obj){
67         responseCode = code;
68         result = obj;
69     }
70
71     public int getResponseCode(){
72         return responseCode;
73     }
74     
75     public Object JavaDoc getResult(){
76         return result;
77     }
78     
79     public void setResponse(int code, Object JavaDoc result){
80         this.responseCode = code;
81         this.result = result;
82     }
83
84     public String JavaDoc toString(){
85         StringBuffer JavaDoc s = null;
86         switch (responseCode) {
87             case EJB_APP_EXCEPTION:
88                 s = new StringBuffer JavaDoc( "EJB_APP_EXCEPTION" );
89                 break;
90             case EJB_ERROR:
91                 s = new StringBuffer JavaDoc( "EJB_ERROR" );
92                 break;
93             case EJB_OK:
94                 s = new StringBuffer JavaDoc( "EJB_OK" );
95                 break;
96             case EJB_OK_CREATE:
97                 s = new StringBuffer JavaDoc( "EJB_OK_CREATE" );
98                 break;
99             case EJB_OK_FOUND:
100                 s = new StringBuffer JavaDoc( "EJB_OK_FOUND" );
101                 break;
102             case EJB_OK_FOUND_COLLECTION:
103                 s = new StringBuffer JavaDoc( "EJB_OK_FOUND_COLLECTION" );
104                 break;
105             case EJB_OK_FOUND_ENUMERATION:
106                 s = new StringBuffer JavaDoc( "EJB_OK_FOUND_ENUMERATION" );
107                 break;
108             case EJB_OK_NOT_FOUND:
109                 s = new StringBuffer JavaDoc( "EJB_OK_NOT_FOUND" );
110                 break;
111             case EJB_SYS_EXCEPTION:
112                 s = new StringBuffer JavaDoc( "EJB_SYS_EXCEPTION" );
113                 break;
114             default:
115                 s = new StringBuffer JavaDoc( "UNKNOWN_RESPONSE" );
116         }
117         s.append(':').append(result);
118     
119         return s.toString();
120     }
121
122     /**
123      * The object implements the readExternal method to restore its
124      * contents by calling the methods of DataInput for primitive
125      * types and readObject for objects, strings and arrays. The
126      * readExternal method must read the values in the same sequence
127      * and with the same types as were written by writeExternal.
128      *
129      * @param in the stream to read data from in order to restore the object
130      * @exception IOException if I/O errors occur
131      * @exception ClassNotFoundException If the class for an object being
132      * restored cannot be found.
133      */
134     public void readExternal(ObjectInput JavaDoc in) throws IOException JavaDoc, ClassNotFoundException JavaDoc {
135         responseCode = in.readByte();
136         // TODO: We should try and guess the content type coming in
137 // so we can take an active part in reading it in
138 // as we do with the other reponse objects
139 result = in.readObject();
140     }
141     
142     /**
143      * The object implements the writeExternal method to save its contents
144      * by calling the methods of DataOutput for its primitive values or
145      * calling the writeObject method of ObjectOutput for objects, strings,
146      * and arrays.
147      *
148      * @serialData Overriding methods should use this tag to describe
149      * the data layout of this Externalizable object.
150      * List the sequence of element types and, if possible,
151      * relate the element to a public/protected field and/or
152      * method of this Externalizable class.
153      *
154      * @param out the stream to write the object to
155      * @exception IOException Includes any I/O exceptions that may occur
156      */
157     public void writeExternal(ObjectOutput JavaDoc out) throws IOException JavaDoc {
158         //out.writeByte((byte)responseCode);
159 out.writeByte(responseCode);
160         out.writeObject(result);
161     }
162 }
163
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