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[simantics/platform.git] / bundles / org.simantics.db.server / src / org / simantics / db / server / protocol / AbstractMessage.java
1 /*******************************************************************************\r
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
3  * in Industry THTH ry.\r
4  * All rights reserved. This program and the accompanying materials\r
5  * are made available under the terms of the Eclipse Public License v1.0\r
6  * which accompanies this distribution, and is available at\r
7  * http://www.eclipse.org/legal/epl-v10.html\r
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 package org.simantics.db.server.protocol;\r
13 \r
14 public abstract class AbstractMessage extends Message {\r
15         protected final int requestNumber;\r
16         protected final int responseNumber;\r
17         protected int receivedNumber = 0;\r
18         protected boolean responsePending = false;\r
19         protected DataBuffer buffer;\r
20         private String exceptionText = null;\r
21         AbstractMessage(int requestNumber, int responseNumber) {\r
22                 this.requestNumber = requestNumber;\r
23                 this.responseNumber = responseNumber;\r
24                 this.buffer = new DataBuffer(DataBuffer.Allocation.DirectAllocation); //ByteBuffer.allocate(0);\r
25         }\r
26         AbstractMessage(int requestNumber, int responseNumber, DataBuffer buffer) {\r
27                 this.requestNumber = requestNumber;\r
28                 this.responseNumber = responseNumber;\r
29                 this.buffer = buffer;\r
30         }\r
31     public int getRequestNumber() {\r
32         return requestNumber;\r
33     }\r
34     public int getResponseNumber() {\r
35         return responseNumber;\r
36     }\r
37         @Override\r
38         boolean hasResponse() {\r
39                 return responseNumber != 0;\r
40         }\r
41         @Override\r
42         String getExceptionText() {\r
43                 return this.exceptionText;\r
44         }\r
45         @Override\r
46         void setExceptionText(String text) {\r
47                 this.exceptionText = text;\r
48         }\r
49     void gotResponse() {\r
50         responsePending = false;\r
51     }\r
52 }\r