Source for gnu.java.rmi.rmic.Compiler

   1: /*
   2:   Copyright (c) 2001, 2003 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10:  
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package gnu.java.rmi.rmic;
  39: 
  40: /**
  41:  * A Compiler object can be used to compile a .java file into a
  42:  * .class file.  This is an abstract class; the
  43:  * <code>getInstance()</code> method is used to obtain the actual
  44:  * compiler object.
  45:  */
  46: public abstract class Compiler
  47: {
  48:   // Can't directly instantiate.
  49:   protected Compiler ()
  50:   {
  51:   }
  52: 
  53:   /** Create a new compiler instance.  */
  54:   public static Compiler getInstance ()
  55:   {
  56:     return getInstance (System.getProperty ("classpath.compiler", "gcj"));
  57:   }
  58: 
  59:   /** Create a new compiler instance given the name of the compiler.  */
  60:   public static Compiler getInstance (String name)
  61:   {
  62:     try
  63:       {
  64:     Class k = Class.forName (classPrefix + name);
  65:     return (Compiler) k.newInstance ();
  66:       }
  67:     catch (Throwable _)
  68:       {
  69:       }
  70:     return null;
  71:   }
  72: 
  73:    /** Get the directory where output files will be put.  */
  74:    public String getDestination ()
  75:    {
  76:      return dest;
  77:    }
  78: 
  79:   /** Set the directory where output files will be put.  */
  80:   public void setDestination (String dest)
  81:   {
  82:     this.dest = dest;
  83:   }
  84: 
  85:    /** Get the classpath for compilation.  */
  86:    public String getClasspath ()
  87:    {
  88:      return classpath;
  89:    }
  90: 
  91:   /** Set the classpath for compilation.  */
  92:   public void setClasspath (String classpath)
  93:   {
  94:     this.classpath = classpath;
  95:   }
  96: 
  97:   /** Compile the given file.  Throws exception on error.  */
  98:   public abstract void compile (String name) throws Exception;
  99: 
 100:   /** The destination directory, or null if none set.  */
 101:   protected String dest;
 102: 
 103:   /** The classpath directory, or null if none set.  */
 104:   private String classpath;
 105: 
 106:   /** Class prefix used when trying to find instance.  */
 107:   private static final String classPrefix = "gnu.java.rmi.rmic.Compile_";
 108: }