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Java example source code file (EnumGen.java)
The EnumGen.java Java example source code/* * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * COMPONENT_NAME: idl.toJava * * ORIGINS: 27 * * Licensed Materials - Property of IBM * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999 * RMI-IIOP v1.0 * */ package com.sun.tools.corba.se.idl.toJavaPortable; // NOTES: // -D61056 <klr> Use Util.helperName import java.io.File; import java.io.PrintWriter; import java.util.Enumeration; import java.util.Hashtable; import java.util.Vector; import com.sun.tools.corba.se.idl.GenFileStream; import com.sun.tools.corba.se.idl.EnumEntry; import com.sun.tools.corba.se.idl.SymtabEntry; /** * **/ public class EnumGen implements com.sun.tools.corba.se.idl.EnumGen, JavaGenerator { /** * Public zero-argument constructor. **/ public EnumGen () { } // ctor /** * Generate the Java code for an IDL enumeration. **/ public void generate (Hashtable symbolTable, EnumEntry e, PrintWriter s) { this.symbolTable = symbolTable; this.e = e; init (); openStream (); if (stream == null) return; generateHolder (); generateHelper (); writeHeading (); writeBody (); writeClosing (); closeStream (); } // generate /** * Initialize members unique to this generator. **/ protected void init () { className = e.name (); fullClassName = Util.javaName (e); } /** * Open the print stream to which to write the enumeration class. **/ protected void openStream () { stream = Util.stream (e, ".java"); } /** * Generate the holder class for this enumeration. **/ protected void generateHolder () { ((Factories)Compile.compiler.factories ()).holder ().generate (symbolTable, e); } /** * Generate the helper class for this enumeration. **/ protected void generateHelper () { ((Factories)Compile.compiler.factories ()).helper ().generate (symbolTable, e); } /** * Write the heading of the enumeration class, including the package, * imports, class statement, and open curly. **/ protected void writeHeading () { Util.writePackage (stream, e); Util.writeProlog (stream, ((GenFileStream)stream).name ()); if (e.comment () != null) e.comment ().generate ("", stream); stream.println ("public class " + className + " implements org.omg.CORBA.portable.IDLEntity"); stream.println ("{"); } /** * Write the members of enumeration class. **/ protected void writeBody () { stream.println (" private int __value;"); stream.println (" private static int __size = " + (e.elements ().size ()) + ';'); stream.println (" private static " + fullClassName + "[] __array = new " + fullClassName + " [__size];"); stream.println (); for (int i = 0; i < e.elements ().size (); ++i) { String label = (String)e.elements ().elementAt (i); stream.println (" public static final int _" + label + " = " + i + ';'); stream.println (" public static final " + fullClassName + ' ' + label + " = new " + fullClassName + "(_" + label + ");"); } stream.println (); writeValue (); writeFromInt (); writeCtors (); } /** * Write the value method for the enumeration class. **/ protected void writeValue () { stream.println (" public int value ()"); stream.println (" {"); stream.println (" return __value;"); stream.println (" }"); stream.println (); } // writeValue /** * Write the from_int method for the enumeration class. **/ protected void writeFromInt () { stream.println (" public static " + fullClassName + " from_int (int value)"); stream.println (" {"); stream.println (" if (value >= 0 && value < __size)"); stream.println (" return __array[value];"); stream.println (" else"); stream.println (" throw new org.omg.CORBA.BAD_PARAM ();"); stream.println (" }"); stream.println (); } /** * Write the protected constructor for the enumeration class. **/ protected void writeCtors () { stream.println (" protected " + className + " (int value)"); stream.println (" {"); stream.println (" __value = value;"); stream.println (" __array[__value] = this;"); stream.println (" }"); } /** * Close the enumeration class. **/ protected void writeClosing () { stream.println ("} // class " + className); } /** * Close the print stream, which writes the stream to file. **/ protected void closeStream () { stream.close (); } /////////////// // From JavaGenerator public int helperType (int index, String indent, TCOffsets tcoffsets, String name, SymtabEntry entry, PrintWriter stream) { tcoffsets.set (entry); EnumEntry enumEntry = (EnumEntry)entry; StringBuffer emit = new StringBuffer ("new String[] { "); Enumeration e = enumEntry.elements ().elements (); boolean firstTime = true; while (e.hasMoreElements ()) { if (firstTime) firstTime = false; else emit.append (", "); emit.append ('"' + Util.stripLeadingUnderscores ((String)e.nextElement ()) + '"'); } emit.append ("} "); stream.println (indent + name + " = org.omg.CORBA.ORB.init ().create_enum_tc (" + Util.helperName (enumEntry, true) + ".id (), \"" // <54697> // Other Java examples (source code examples)Here is a short list of links related to this Java EnumGen.java source code file: |
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