[CIShell-SVN] SF.net SVN: cishell:[917] trunk/core/org.cishell.utilities/src/org/cishell/ utilities/CollectionUtilities.java

[<jrb...@us...>]

Revision: 917
          http://cishell.svn.sourceforge.net/cishell/?rev=917&view=rev
Author:   jrbibers
Date:     2009-08-06 22:02:26 +0000 (Thu, 06 Aug 2009)

Log Message:
-----------
Added CollectionUtilities to CIShell utilities.  Initial commit includes only a method which filters a Collection according to a Dictionary into Boolean values.

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

Added: trunk/core/org.cishell.utilities/src/org/cishell/utilities/CollectionUtilities.java
===================================================================
--- trunk/core/org.cishell.utilities/src/org/cishell/utilities/CollectionUtilities.java	                        (rev 0)
+++ trunk/core/org.cishell.utilities/src/org/cishell/utilities/CollectionUtilities.java	2009-08-06 22:02:26 UTC (rev 917)
@@ -0,0 +1,31 @@
+package org.cishell.utilities;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Dictionary;
+import java.util.Iterator;
+
+public class CollectionUtilities {
+
+	/* Return only elements of the Collection which are mapped to true in the
+	 * Dictionary
+	 */
+	public static Collection grabSelectedValues(
+			Collection elements, Dictionary selectionDictionary) {
+		Collection selectedElements = new ArrayList();
+	
+		for (Iterator elementsIt = elements.iterator(); elementsIt.hasNext();) {
+			String element = (String) elementsIt.next();
+			Object isSelected = selectionDictionary.get(element);
+	
+			if ((isSelected != null) && (isSelected instanceof Boolean)) {
+				if (((Boolean) isSelected).booleanValue()) {
+					selectedElements.add(element);
+				}
+			}
+		}
+	
+		return selectedElements;
+	}
+
+}


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.