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;
+ }
+
+}
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