[CIShell-SVN] SF.net SVN: cishell:[1127] trunk/core/org.cishell.utilities/src/org/cishell /utilities

[<pat...@us...>]

Revision: 1127
          http://cishell.svn.sourceforge.net/cishell/?rev=1127&view=rev
Author:   pataphil
Date:     2010-08-23 18:06:40 +0000 (Mon, 23 Aug 2010)

Log Message:
-----------
* Added MapUtilities.keysToCounts().
* Reviewed by Chintan.

Modified Paths:
--------------
    trunk/core/org.cishell.utilities/src/org/cishell/utilities/CollectionUtilities.java
    trunk/core/org.cishell.utilities/src/org/cishell/utilities/MapUtilities.java

Modified: trunk/core/org.cishell.utilities/src/org/cishell/utilities/CollectionUtilities.java
===================================================================
--- trunk/core/org.cishell.utilities/src/org/cishell/utilities/CollectionUtilities.java	2010-08-19 17:08:12 UTC (rev 1126)
+++ trunk/core/org.cishell.utilities/src/org/cishell/utilities/CollectionUtilities.java	2010-08-23 18:06:40 UTC (rev 1127)
@@ -6,7 +6,6 @@
 import java.util.Iterator;
 
 public class CollectionUtilities {
-
 	/* Return only elements of the Collection which are mapped to true in the
 	 * Dictionary
 	 */

Modified: trunk/core/org.cishell.utilities/src/org/cishell/utilities/MapUtilities.java
===================================================================
--- trunk/core/org.cishell.utilities/src/org/cishell/utilities/MapUtilities.java	2010-08-19 17:08:12 UTC (rev 1126)
+++ trunk/core/org.cishell.utilities/src/org/cishell/utilities/MapUtilities.java	2010-08-23 18:06:40 UTC (rev 1127)
@@ -77,4 +77,18 @@
 
 		return values;
 	}
+
+	public static<K> Map<K, Integer> keysToCounts(Collection<K> keys) {
+		Map<K, Integer> keysToCounts = new HashMap<K, Integer>();
+
+		for (K key : keys) {
+			if (keysToCounts.containsKey(key)) {
+				keysToCounts.put(key, keysToCounts.get(key) + 1);
+			} else {
+				keysToCounts.put(key, 1);
+			}
+		}
+
+		return keysToCounts;
+	}
 }
\ No newline at end of file


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