Adding statistics endpoint to distribution

* Adding statistics endpoint in DistributionRestController
* Adding DistributionStatisticsManager to hold all stats.
* Adding StatisticsReport class to represent distribution stats report.
* Updating stats at each step in SdcReceptionHandler.
* Adding test cases for all code changes.

Change-Id: I0b0f97aecc64b18314367fdff6d3ca7bee06efc7
Issue-ID: POLICY-1035
Signed-off-by: ramverma <ram.krishna.verma@ericsson.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/plugins/reception-plugins/src/test/java/org/onap/policy/distribution/reception/handling/sdc/TestSdcReceptionHandler.java b/plugins/reception-plugins/src/test/java/org/onap/policy/distribution/reception/handling/sdc/TestSdcReceptionHandler.java
index c4020a41..a8d15cb7 100644
--- a/plugins/reception-plugins/src/test/java/org/onap/policy/distribution/reception/handling/sdc/TestSdcReceptionHandler.java
+++ b/plugins/reception-plugins/src/test/java/org/onap/policy/distribution/reception/handling/sdc/TestSdcReceptionHandler.java
@@ -57,6 +57,7 @@ import org.onap.policy.distribution.reception.handling.AbstractReceptionHandler;
 import org.onap.policy.distribution.reception.handling.PluginHandler;
 import org.onap.policy.distribution.reception.parameters.PluginHandlerParameters;
 import org.onap.policy.distribution.reception.parameters.PolicyDecoderParameters;
+import org.onap.policy.distribution.reception.statistics.DistributionStatisticsManager;
 import org.onap.sdc.api.notification.IArtifactInfo;
 import org.onap.sdc.api.notification.INotificationData;
 import org.onap.sdc.api.results.IDistributionClientDownloadResult;
@@ -99,6 +100,7 @@ public class TestSdcReceptionHandler {
      */
     @Before
     public final void init() throws IOException {
+        DistributionStatisticsManager.resetAllStatistics();
         final Gson gson = new GsonBuilder().create();
         pssdConfigParameters = gson.fromJson(new FileReader("src/test/resources/handling-sdc.json"),
                 SdcReceptionHandlerConfigurationParameterGroup.class);
@@ -237,6 +239,12 @@ public class TestSdcReceptionHandler {
         assertTrue(policyDecoder.getDecodedPolicy().getPolicyName().contains(DUMMY_SERVICE_CSAR));
         assertEquals(1, policyForwarder.getNumberOfPoliciesReceived());
         assertTrue(policyForwarder.receivedPolicyWithGivenType(DummyDecoder.DUMMY_POLICY));
+        assertEquals(1, DistributionStatisticsManager.getTotalDistributionCount());
+        assertEquals(1, DistributionStatisticsManager.getDistributionSuccessCount());
+        assertEquals(0, DistributionStatisticsManager.getDistributionFailureCount());
+        assertEquals(1, DistributionStatisticsManager.getTotalDownloadCount());
+        assertEquals(1, DistributionStatisticsManager.getDownloadSuccessCount());
+        assertEquals(0, DistributionStatisticsManager.getDownloadFailureCount());
     }
 
     @Test
@@ -260,6 +268,12 @@ public class TestSdcReceptionHandler {
 
         assertEquals(null, policyDecoder.getDecodedPolicy());
         assertEquals(0, policyForwarder.getNumberOfPoliciesReceived());
+        assertEquals(1, DistributionStatisticsManager.getTotalDistributionCount());
+        assertEquals(0, DistributionStatisticsManager.getDistributionSuccessCount());
+        assertEquals(1, DistributionStatisticsManager.getDistributionFailureCount());
+        assertEquals(1, DistributionStatisticsManager.getTotalDownloadCount());
+        assertEquals(0, DistributionStatisticsManager.getDownloadSuccessCount());
+        assertEquals(1, DistributionStatisticsManager.getDownloadFailureCount());
     }
 
     @Test