[DEV] 2.4 tools

java/common/cstr/util/EnumValues.java

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+
+ //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
+ //                                                                        \\
+ //                 Centre for Speech Technology Research                  \\
+ //                      University of Edinburgh, UK                       \\
+ //                        Copyright (c) 1996,1997                         \\
+ //                         All Rights Reserved.                           \\
+ //   Permission is hereby granted, free of charge, to use and distribute  \\
+ //   this software and its documentation without restriction, including   \\
+ //   without limitation the rights to use, copy, modify, merge, publish,  \\
+ //   distribute, sublicense, and/or sell copies of this work, and to      \\
+ //   permit persons to whom this work is furnished to do so, subject to   \\
+ //   the following conditions:                                            \\
+ //    1. The code must retain the above copyright notice, this list of    \\
+ //       conditions and the following disclaimer.                         \\
+ //    2. Any modifications must be clearly marked as such.                \\
+ //    3. Original authors' names are not deleted.                         \\
+ //    4. The authors' names are not used to endorse or promote products   \\
+ //       derived from this software without specific prior written        \\
+ //       permission.                                                      \\
+ //   THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK        \\
+ //   DISCLAIM ALL WARRANTIES With REGARD TO THIS SOFTWARE, INCLUDING      \\
+ //   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   \\
+ //   SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE     \\
+ //   FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES    \\
+ //   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   \\
+ //   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          \\
+ //   ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       \\
+ //   THIS SOFTWARE.                                                       \\
+ //                                                                        \\
+ //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
+ //                                                                        \\
+ //                  Author: Richard Caley (rjc@cstr.ed.ac.uk)             \\
+ //  --------------------------------------------------------------------  \\
+ //  Mechanics of an enumerated type. Wrapped in a class for inheritance   \\
+ //  purposes. NOte this is a public class all of whose mechanics are      \\
+ //  package local, we can get hold of these from anywhere, but can't      \\
+ //  do a thing with them, in fact only cstr.util.Enum is supposed to go   \\
+ //  near this.                                                            \\
+ //                                                                        \\
+ //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
+
+
+package cstr.util ;
+
+import java.lang.*;
+import java.util.*;
+
+public class EnumValues 
+{
+  protected String name;
+  protected Hashtable table;
+  protected int n;
+  protected Enum [] values=null;
+
+  EnumValues(String n)
+    {
+      name=n;
+      table=new Hashtable();
+    }
+
+  int add(Enum v)
+    {
+      table.put(v.toString(),
+		v);
+      table.put(v.toString(true),
+		v);
+      if (v.info != Enum.class)
+	return n++;
+      else
+	return -1;
+    }
+
+  void add(Enum v, String a)
+    {
+      table.put(a,v);
+    }
+
+  Enum getValue(String s)
+    throws IllegalArgumentException
+    {
+      Enum v = (Enum)table.get(s);
+      if (v==null)
+	throw new IllegalArgumentException(name+":"+s);
+      return v;
+    }
+
+  Enum [] getValues()
+    {
+      if (values == null)
+	{
+	  values = new Enum[n];
+	  Enumeration vs = table.elements();
+	  while (vs.hasMoreElements())
+	    {
+	      Enum e = (Enum)vs.nextElement();
+	      if (e.index >=0)
+		values[e.index] = e;
+	    }
+	}
+      return values;
+    }
+}