Initial OpenECOMP policy/engine commit

Change-Id: I7dbff37733b661643dd4d1caefa3d7dccc361b6e
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/ECOMP-XACML/src/main/java/org/openecomp/policy/xacml/util/MetricsUtil.java b/ECOMP-XACML/src/main/java/org/openecomp/policy/xacml/util/MetricsUtil.java
new file mode 100644
index 000000000..45a51a191
--- /dev/null
+++ b/ECOMP-XACML/src/main/java/org/openecomp/policy/xacml/util/MetricsUtil.java
@@ -0,0 +1,80 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP-XACML
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+package org.openecomp.policy.xacml.util;
+
+public class MetricsUtil {
+	
+	public static class AvgLatency {
+		private long cumLatency = 0;
+		private long count = 0;
+		
+		public void compute(long latency) {
+			cumLatency += latency;
+			count++;
+		}
+		
+		public long avg() {
+			if (count == 0)
+				return 0;
+			
+			return (cumLatency / count);
+		}
+		
+		public void reset() {
+			cumLatency = 0;
+			count = 0;
+		}
+	}
+
+	public static class MinLatency {
+		private long min = Long.MAX_VALUE;
+		
+		public synchronized void compute(long ts) {
+			if (ts < min)
+				min = ts;
+		}
+		
+		public long min() {
+			return min;
+		}
+		
+		public void reset() {
+			min = Long.MAX_VALUE;
+		}
+	}
+
+	public static class MaxLatency {
+		private long max = Long.MIN_VALUE;
+		
+		public synchronized void compute(long ts) {
+			if (ts > max)
+				max = ts;
+		}
+		
+		public long max() {
+			return max;
+		}
+		
+		public void reset() {
+			max = Long.MIN_VALUE;
+		}
+	}
+
+}