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Java > Open Source Codes > org > coach > idltree > IdlShort


1 /***************************************************************************/
2 /* COACH: Component Based Open Source Architecture for */
3 /* Distributed Telecom Applications */
4 /* See: http://www.objectweb.org/ */
5 /* */
6 /* Copyright (C) 2003 Lucent Technologies Nederland BV */
7 /* Bell Labs Advanced Technologies - EMEA */
8 /* */
9 /* Initial developer(s): Harold Batteram */
10 /* */
11 /* This library is free software; you can redistribute it and/or */
12 /* modify it under the terms of the GNU Lesser General Public */
13 /* License as published by the Free Software Foundation; either */
14 /* version 2.1 of the License, or (at your option) any later version. */
15 /* */
16 /* This library is distributed in the hope that it will be useful, */
17 /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
18 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
19 /* Lesser General Public License for more details. */
20 /* */
21 /* You should have received a copy of the GNU Lesser General Public */
22 /* License along with this library; if not, write to the Free Software */
23 /* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
24 /***************************************************************************/
25 package org.coach.idltree;
26
27 import org.w3c.dom.Node JavaDoc;
28 import org.omg.DynamicAny.*;
29 import org.omg.CORBA.TypeCode JavaDoc;
30 import org.omg.CORBA.Any JavaDoc;
31 import org.omg.CORBA.TCKind JavaDoc;
32
33 /**
34  * The class IdlShort represents an CORBA IDL short value. Instances are created through one
35  * of the create() factory methods in IdlNode.
36  * An IdlShort object has no child nodes.
37  *
38  * @author <a HREF="mailto:batteram@lucent.com">Harold Batteram</a> <b>Lucent Technologies</b>
39  */
40 public class IdlShort extends IdlNode implements IdlWritable {
41     protected IdlShort() {
42         setUserObject(this);
43         type = "short";
44         value = "0";
45         tc = orb.get_primitive_tc(TCKind.tk_short);
46     }
47
48     protected IdlShort(Any any) {
49         this();
50         setNode(any);
51     }
52         
53     protected IdlShort(TypeCode JavaDoc tc) {
54         this();
55         setNode(tc);
56     }
57     
58     protected void setNode(Any any) {
59         try {
60             setNode(any.type());
61             value = "" + any.create_input_stream().read_short();
62         } catch (Exception JavaDoc e) {
63             e.printStackTrace();
64         }
65     }
66
67     /**
68      * Returns the current value as a CORBA Any value.
69      *
70      * @return The current value as a CORBA Any.
71      */
72     public Any toAny() {
73         try {
74             Any any = orb.create_any();
75             org.omg.CORBA.portable.OutputStream JavaDoc out = any.create_output_stream();
76             any.type(tc);
77             out.write_short(Short.parseShort(value));
78             any.read_value(out.create_input_stream(), tc);
79             return any;
80         } catch (Exception JavaDoc e) {
81             e.printStackTrace();
82         }
83         return null;
84     }
85
86     /**
87      * Assigns the node value from a string.
88      *
89      * @param v The string from which to convert the value.
90      */
91     public void setValue(String JavaDoc v) {
92         try {
93             Short.parseShort(v);
94             value = v;
95         } catch (NumberFormatException JavaDoc e) {
96             throw new RuntimeException JavaDoc(e.toString());
97         }
98     }
99
100     /**
101      * Writes the value to a CORBA outputstream.
102      *
103      * @param is The outputstream to write to.
104      */
105     public void write(org.omg.CORBA.portable.OutputStream JavaDoc os) {
106         try {
107             os.write_short(Short.parseShort(value));
108         } catch (Exception JavaDoc e) {
109             e.printStackTrace();
110         }
111     }
112
113     /**
114      * Reads the value from a CORBA inputstream.
115      *
116      * @param is The inputstream to read from.
117      */
118     public void read(org.omg.CORBA.portable.InputStream JavaDoc is) {
119         value = "" + is.read_short();
120     }
121     
122     // XML section
123
124     /**
125      * Create an IdlShort node from an Xml representation.
126      * XML format example:
127      * <pre>
128      * &lt;short&gt;3&lt;/short&gt;
129      * </pre>
130      */
131     public IdlShort(String JavaDoc xml) {
132         this(XmlNode.getNode(xml));
133     }
134     
135     /**
136      * Construct an XmlNode from an Xml node.
137      * Package access only. Called from the Xml parser to contruct
138      * an Xml type tree from an Xml representation.
139      */
140     IdlShort(Node JavaDoc n) {
141         this();
142         if (n == null || !n.getNodeName().toUpperCase().equals("SHORT")) {
143             throw new RuntimeException JavaDoc("short expected");
144         }
145         setValue(XmlNode.getText(n));
146     }
147  
148     /**
149      * Write the current value to an IdlWriter object.
150      *
151      * @param w The IdlWriter object to write the current value to.
152      */
153     public void write(IdlWriter w) {
154         w.write_short(value);
155     }
156 }
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