1 files changed, 92 insertions, 0 deletions
diff --git a/testsuites/performance/performance-benchmark-test/src/test/java/org/onap/policy/apex/service/engine/benchmark/TestApexEventListener.java b/testsuites/performance/performance-benchmark-test/src/test/java/org/onap/policy/apex/service/engine/benchmark/TestApexEventListener.java
new file mode 100644
index 000000000..b2de8f072
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+++ b/testsuites/performance/performance-benchmark-test/src/test/java/org/onap/policy/apex/service/engine/benchmark/TestApexEventListener.java
@@ -0,0 +1,92 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.policy.apex.service.engine.benchmark;
+
+import static org.junit.Assert.assertNull;
+
+import java.util.Queue;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.onap.policy.apex.service.engine.event.ApexEvent;
+import org.onap.policy.apex.service.engine.runtime.ApexEventListener;
+import org.slf4j.ext.XLogger;
+import org.slf4j.ext.XLoggerFactory;
+
+public class TestApexEventListener implements ApexEventListener {
+
+    private static final String SENT_TIMESTAMP = "SentTimestamp";
+    private static final XLogger LOGGER = XLoggerFactory.getXLogger(TestApexEventListener.class);
+    private static final String RECVD_TIMESTAMP = "RecvdTimestamp";
+    private Queue<ApexEvent> queue;
+
+    private final AtomicLong eventReceived = new AtomicLong();
+
+    public TestApexEventListener() {
+        this.queue = new ConcurrentLinkedQueue<ApexEvent>();
+    }
+
+    @Override
+    public void onApexEvent(final ApexEvent apexEvent) {
+        apexEvent.put(RECVD_TIMESTAMP, System.currentTimeMillis());
+        eventReceived.incrementAndGet();
+        queue.add(apexEvent);
+    }
+
+    public void printResult() {
+        if (!queue.isEmpty()) {
+            long maxTimeInMilliSeconds = 0;
+            long minTimeInMilliSeconds = Long.MAX_VALUE;
+            final long numEvents = queue.size();
+            long totalTimeInMilliSeconds = 0;
+            for (final ApexEvent apexEvent : queue) {
+                assertNull(apexEvent.getExceptionMessage());
+                final Long endTimeInMilliSeconds = (Long) apexEvent.get(RECVD_TIMESTAMP);
+                final Long startTimeInMilliSeconds = (Long) apexEvent.get(SENT_TIMESTAMP);
+                final long timeTaken = endTimeInMilliSeconds - startTimeInMilliSeconds;
+                totalTimeInMilliSeconds += timeTaken;
+                if (timeTaken > maxTimeInMilliSeconds) {
+                    maxTimeInMilliSeconds = timeTaken;
+                }
+                if (timeTaken < minTimeInMilliSeconds) {
+                    minTimeInMilliSeconds = timeTaken;
+                }
+            }
+            LOGGER.info("Average Time Taken to process {} events: {} ms", numEvents,
+                    (totalTimeInMilliSeconds / numEvents));
+            LOGGER.info("Max Time Taken: {} ms", maxTimeInMilliSeconds);
+            LOGGER.info("Min Time Taken: {} ms", minTimeInMilliSeconds);
+        }
+    }
+
+    public void reset() {
+        this.queue = new ConcurrentLinkedQueue<ApexEvent>();
+        eventReceived.set(0);;
+    }
+
+    public Queue<ApexEvent> getQueue() {
+        return queue;
+    }
+
+    public long getEventReceived() {
+        return eventReceived.get();
+    }
+
+}