1 /*
2 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 /*
26 * COMPONENT_NAME: idl.toJava
27 *
28 * ORIGINS: 27
29 *
30 * Licensed Materials - Property of IBM
31 * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999
32 * RMI-IIOP v1.0
33 *
34 */
35
36 package com.sun.tools.corba.se.idl.toJavaPortable;
37
38 // NOTES:
39 // -D62023 klr new class
40
41 import java.io.PrintWriter;
42 import java.util.Vector;
43
44 import com.sun.tools.corba.se.idl.GenFileStream;
45 import com.sun.tools.corba.se.idl.SymtabEntry;
46 import com.sun.tools.corba.se.idl.MethodEntry;
47 import com.sun.tools.corba.se.idl.ValueEntry;
48
49 /**
50 *
51 **/
52 public class DefaultFactory implements AuxGen
53 {
54 /**
55 * Public zero-argument constructor.
56 **/
57 public DefaultFactory ()
58 {
59 } // ctor
60
61 /**
62 * Generate the default value factory class. Provides general algorithm for
63 * auxiliary binding generation:
64 * 1.) Initialize symbol table and symbol table entry members,
65 * common to all generators.
66 * 2.) Initialize members unique to this generator.
67 * 3.) Open print stream
68 * 4.) Write class heading (package, prologue, source comment, class
69 * statement, open curly
70 * 5.) Write class body (member data and methods)
71 * 6.) Write class closing (close curly)
72 * 7.) Close the print stream
73 **/
74 public void generate (java.util.Hashtable symbolTable, com.sun.tools.corba.se.idl.SymtabEntry entry)
75 {
76 this.symbolTable = symbolTable;
77 this.entry = entry;
78 init ();
79 openStream ();
80 if (stream == null)
81 return;
82 writeHeading ();
83 writeBody ();
84 writeClosing ();
85 closeStream ();
86 } // generate
87
88 /**
89 * Initialize variables unique to this generator.
90 **/
91 protected void init ()
92 {
93 factoryClass = entry.name () + "DefaultFactory";
94 factoryInterface = entry.name () + "ValueFactory";
95 factoryType = Util.javaName (entry);
96 implType = entry.name () + "Impl"; // default implementation class
97 } // init
98
99 /**
100 * @return true if entry has any factory methods declared
101 **/
102 protected boolean hasFactoryMethods ()
103 {
104 Vector init = ((ValueEntry)entry).initializers ();
105 if (init != null && init.size () > 0)
106 return true;
107 else
108 return false;
109 } // hasFactoryMethods
110
111 /**
112 * Open the print stream for subsequent output.
113 **/
114 protected void openStream ()
115 {
116 stream = Util.stream (entry, "DefaultFactory.java");
117 } // openStream
118
119 /**
120 * Generate the heading, including the package, imports,
121 * source comment, class statement, and left curly.
122 **/
123 protected void writeHeading ()
124 {
125 Util.writePackage (stream, entry, Util.TypeFile); // REVISIT - same as interface?
126 Util.writeProlog (stream, stream.name ());
127 if (entry.comment () != null)
128 entry.comment ().generate ("", stream);
129 stream.print ("public class " + factoryClass + " implements ");
130 if (hasFactoryMethods ())
131 stream.print (factoryInterface);
132 else
133 stream.print ("org.omg.CORBA.portable.ValueFactory");
134 stream.println (" {");
135 } // writeHeading
136
137 /**
138 * Generate the contents of this class
139 **/
140 protected void writeBody ()
141 {
142 writeFactoryMethods ();
143 stream.println ();
144 writeReadValue ();
145 } // writeBody
146
147 /**
148 * Generate members of this class.
149 **/
150 protected void writeFactoryMethods ()
151 {
152 Vector init = ((ValueEntry)entry).initializers ();
153 if (init != null)
154 {
155 for (int i = 0; i < init.size (); i++)
156 {
157 MethodEntry element = (MethodEntry) init.elementAt (i);
158 element.valueMethod (true); //tag value method if not tagged previously
159 ((MethodGen24) element.generator ()).defaultFactoryMethod (symbolTable, element, stream);
160 }
161 }
162 } // writeFactoryMethods
163
164 /**
165 * Generate default read_value
166 **/
167 protected void writeReadValue ()
168 {
169 stream.println (" public java.io.Serializable read_value (org.omg.CORBA_2_3.portable.InputStream is)");
170 stream.println (" {");
171 stream.println (" return is.read_value(new " + implType + " ());");
172 stream.println (" }");
173 } // writeReadValue
174
175 /**
176 * Generate the closing statements.
177 **/
178 protected void writeClosing ()
179 {
180 stream.println ('}');
181 } // writeClosing
182
183 /**
184 * Write the stream to file by closing the print stream.
185 **/
186 protected void closeStream ()
187 {
188 stream.close ();
189 } // closeStream
190
191 protected java.util.Hashtable symbolTable;
192 protected com.sun.tools.corba.se.idl.SymtabEntry entry;
193 protected GenFileStream stream;
194
195 // Unique to this generator
196 protected String factoryClass;
197 protected String factoryInterface;
198 protected String factoryType;
199 protected String implType;
200 } // class Holder