1 files changed, 42 insertions, 0 deletions
diff --git a/systemtap/org.eclipse.linuxtools.systemtap.ui.graphingapi.nonui/src/org/eclipse/linuxtools/systemtap/ui/graphingapi/nonui/aggregates/SumAggregate.java b/systemtap/org.eclipse.linuxtools.systemtap.ui.graphingapi.nonui/src/org/eclipse/linuxtools/systemtap/ui/graphingapi/nonui/aggregates/SumAggregate.java
new file mode 100644
index 0000000000..09a3bb23ec
--- /dev/null
+++ b/systemtap/org.eclipse.linuxtools.systemtap.ui.graphingapi.nonui/src/org/eclipse/linuxtools/systemtap/ui/graphingapi/nonui/aggregates/SumAggregate.java
@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2006 IBM Corporation.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - Jeff Briggs, Henry Hughes, Ryan Morse
+ *******************************************************************************/
+
+package org.eclipse.linuxtools.systemtap.ui.graphingapi.nonui.aggregates;
+
+import org.eclipse.linuxtools.systemtap.ui.graphingapi.nonui.structures.NumberType;
+
+public class SumAggregate implements IDataAggregate {
+	
+	/**
+	 * Ensure column isn't empty, then get the sum total of all the column's values.
+	 * 
+	 * @param column The column to total.
+	 * 
+	 * @return The sum total of all the column's values.
+	 */
+	public Number aggregate(Number[] column) {
+		if(column == null || column.length == 0)
+			return null;
+		
+		double num = 0;
+		
+		for(int i=0; i<column.length; i++)
+			num += column[i].doubleValue();
+		
+		return NumberType.getNumber(column[0], num);
+	}
+	
+	public String getID() {
+		return ID;
+	}
+	
+	public static final String ID = "org.eclipse.linuxtools.systemtap.ui.graphingapi.nonui.aggregates.SumAggregate";
+}