[DEV] 2.4 tools

2015-09-19 10:52:26 +02:00
commit b6ae08bd22
945 changed files with 186828 additions and 0 deletions
--- a/java/common/cstr/util/LongHash.java
+++ b/java/common/cstr/util/LongHash.java
@@ -0,0 +1,109 @@
+
+ //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
+ //                                                                        \\
+ //                 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)             \\
+ //  --------------------------------------------------------------------  \\
+ //  Like a Hashtable but for keys of type long.                           \\
+ //                                                                        \\
+ //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
+
+
+package cstr.util ;
+
+import java.lang.*;
+import java.util.*;
+
+public final class LongHash
+{
+  LongBucket [] buckets;
+
+  public LongHash()
+    {
+      this(20);
+    }
+
+  public LongHash(int n)
+    {
+      buckets = new LongBucket[n];
+    }
+
+  private void debugDump()
+    {
+      System.out.println("");
+      for(int i=0; i<buckets.length; i++)
+	{
+	  int n=0;
+	  for(LongBucket bk=buckets[i]; bk!=null; bk=bk.next)
+	    n++;
+	  System.out.print("["+n+"]");
+	}
+      System.out.println("");
+    }
+
+  public void put(long k, Object v)
+    {
+      int b = doHash(k, buckets.length);
+      buckets[b] = new LongBucket(k, v, buckets[b]);
+      // debugDump();
+    }
+
+  public Object get(long k)
+    {
+      int b = doHash(k, buckets.length);
+
+      for(LongBucket bk=buckets[b]; bk!=null; bk=bk.next)
+	if (bk.key==k)
+	  return bk.value;
+
+      return null;
+    }
+  
+  private int doHash(long k, int l)
+    {
+      return (int)((k>>4)%l);
+    }
+
+  private final class LongBucket
+  {
+    long key;
+    Object value;
+    LongBucket next;
+
+    public LongBucket(long k, Object v, LongBucket n)
+      {
+	key=k;
+	value=v;
+	next=n;
+      }
+  }
+
+}