1 files changed, 61 insertions, 0 deletions
diff --git a/common-app-api/src/main/java/org/openecomp/sdc/common/ecomplog/Stopwatch.java b/common-app-api/src/main/java/org/openecomp/sdc/common/ecomplog/Stopwatch.java
new file mode 100644
index 0000000000..76262e7815
--- /dev/null
+++ b/common-app-api/src/main/java/org/openecomp/sdc/common/ecomplog/Stopwatch.java
@@ -0,0 +1,61 @@
+package org.openecomp.sdc.common.ecomplog;
+
+import static org.openecomp.sdc.common.ecomplog.api.IEcompLogConfiguration.MDC_BEGIN_TIMESTAMP;
+import static org.openecomp.sdc.common.ecomplog.api.IEcompLogConfiguration.MDC_ELAPSED_TIME;
+import static org.openecomp.sdc.common.ecomplog.api.IEcompLogConfiguration.MDC_END_TIMESTAMP;
+
+import java.time.Clock;
+import java.time.Duration;
+import java.time.LocalDateTime;
+
+import org.openecomp.sdc.common.ecomplog.api.IStopWatch;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.slf4j.MDC;
+
+/**
+ * Created by dd4296 on 12/13/2017.
+ * this is local implementation of the stopwatch class from EELF standard with the same interface
+ * can be replaced if needed with EELF lib
+ */
+public class Stopwatch implements IStopWatch {
+
+    private static Logger log = LoggerFactory.getLogger(Stopwatch.class.getName());
+
+    public Stopwatch() {
+    }
+
+    public void start() {
+        if (MDC.get(MDC_BEGIN_TIMESTAMP) == null || MDC.get(MDC_BEGIN_TIMESTAMP).trim().length() == 0)
+            MDC.put(MDC_BEGIN_TIMESTAMP, generatedTimeNow());
+    }
+
+    public void stop() {
+        if (MDC.get(MDC_BEGIN_TIMESTAMP) == null) {
+            log.error("call to stop without calling start first, this is not compliant with EELF format");
+        }
+        MDC.put(MDC_END_TIMESTAMP, generatedTimeNow());
+        setElapsedTime();
+    }
+
+    private void setElapsedTime() {
+
+        try {
+
+            final LocalDateTime startTime = LocalDateTime.parse(MDC.get(MDC_BEGIN_TIMESTAMP));
+            final LocalDateTime endTime = LocalDateTime.parse(MDC.get(MDC_END_TIMESTAMP));
+
+            final Duration timeDifference = Duration.between(startTime, endTime);
+
+            MDC.put(MDC_ELAPSED_TIME, String.valueOf(timeDifference.toMillis()));
+
+        } catch(Exception ex) {
+            log.error("failed to calculate elapsed time",ex);
+        }
+    }
+
+    private String generatedTimeNow() {
+        return String.valueOf(LocalDateTime.now(Clock.systemUTC()));
+    }
+
+}
+\ No newline at end of file