Optimized retry in the exception branch

Missed a conditional branch before, now fixed that.

Issue-ID: HOLMES-536
Signed-off-by: Guangrong Fu <fu.guangrong@zte.com.cn>
Change-Id: I682d31e14b30d1fbeb903760ae0788a25806d9b0

2 files changed, 44 insertions, 4 deletions

diff --git a/holmes-actions/src/main/java/org/onap/holmes/common/utils/MsbRegister.java b/holmes-actions/src/main/java/org/onap/holmes/common/utils/MsbRegister.java
index b8f6b86..33b53c7 100644
--- a/holmes-actions/src/main/java/org/onap/holmes/common/utils/MsbRegister.java
+++ b/holmes-actions/src/main/java/org/onap/holmes/common/utils/MsbRegister.java
@@ -60,9 +60,9 @@ public class MsbRegister {
         MicroServiceFullInfo microServiceFullInfo = null;
         int retry = 0;
         while (null == microServiceFullInfo && retry < totalRetryTimes) {
+            int time  = interval * ++retry;
             try {
-                log.info("Holmes Service Registration. Times: " + ++retry);
-                int time  = interval * retry;
+                log.info("Holmes Service Registration. Times: " + retry);
                 microServiceFullInfo = client
                         .header("Accept", MediaType.APPLICATION_JSON)
                         .queryParam("createOrUpdate", true)
@@ -72,14 +72,14 @@ public class MsbRegister {
                                 MicroServiceFullInfo.class);
 
                 if (null == microServiceFullInfo) {
-                    log.warn(String.format("Failed to register the service to MSB. Sleep %ds and try again.", time));
-                    threadSleep(TimeUnit.SECONDS.toSeconds(time));
+                    retry(time);
                 } else {
                     log.info("Registration succeeded!");
                     break;
                 }
             } catch (Exception e) {
                 log.warn("Unexpected exception: " + e.getMessage(), e);
+                retry(time);
             }
         }
 
@@ -90,6 +90,11 @@ public class MsbRegister {
         log.info("Service registration completed.");
     }
 
+    private void retry(int intervalInSecond) {
+        log.warn(String.format("Failed to register the service to MSB. Sleep %ds and try again.", intervalInSecond));
+        threadSleep(TimeUnit.SECONDS.toSeconds(intervalInSecond));
+    }
+
     private void threadSleep(long second) {
         log.info("Start sleeping...");
         try {
diff --git a/holmes-actions/src/test/java/org/onap/holmes/common/utils/MsbRegisterTest.java b/holmes-actions/src/test/java/org/onap/holmes/common/utils/MsbRegisterTest.java
index 0201935..828fe0c 100644
--- a/holmes-actions/src/test/java/org/onap/holmes/common/utils/MsbRegisterTest.java
+++ b/holmes-actions/src/test/java/org/onap/holmes/common/utils/MsbRegisterTest.java
@@ -118,4 +118,39 @@ public class MsbRegisterTest {
 
         PowerMock.verifyAll();
     }
+
+    @Test
+    public void test_register2Msb_fail_n_times_due_to_exception() {
+        int requestTimes = 3;
+        expect(mockedJerseyClient.header("Accept", MediaType.APPLICATION_JSON)).andReturn(mockedJerseyClient).times(requestTimes);
+        expect(mockedJerseyClient.queryParam("createOrUpdate", true)).andReturn(mockedJerseyClient).times(requestTimes);
+        expect(mockedJerseyClient.post(anyObject(String.class),
+                anyObject(Entity.class),
+                anyObject(Class.class)))
+                .andThrow(new RuntimeException("Failure!")).times(requestTimes - 1);
+
+        expect(mockedJerseyClient.post(anyObject(String.class),
+                anyObject(Entity.class),
+                anyObject(Class.class)))
+                .andReturn(GsonUtil.jsonToBean("{\"serviceName\":\"holmes-engine-mgmt\"," +
+                                "\"version\":\"v1\",\"url\":\"/api/holmes-engine-mgmt/v1\",\"protocol\":\"REST\"," +
+                                "\"visualRange\":\"0|1\",\"lb_policy\":\"\",\"publish_port\":\"\",\"namespace\":\"\"," +
+                                "\"network_plane_type\":\"\",\"host\":\"\",\"path\":\"/api/holmes-engine-mgmt/v1\"," +
+                                "\"enable_ssl\":true,\"nodes\":[{\"ip\":\"127.0.0.1\",\"port\":\"9102\",\"checkType\":\"\"," +
+                                "\"checkUrl\":\"\",\"tls_skip_verify\":true,\"ha_role\":\"\",\"nodeId\":\"_v1_holmes-engine-mgmt_127.0.0.1_9102\"," +
+                                "\"status\":\"passing\"}],\"metadata\":[],\"labels\":[],\"status\":\"1\",\"is_manual\":false}",
+                        MicroServiceFullInfo.class));
+
+        PowerMock.replayAll();
+
+        MsbRegister msbRegister = new MsbRegister();
+        msbRegister.setInterval(1);
+        try {
+            msbRegister.register2Msb(msi);
+        } catch (CorrelationException e) {
+            // Do nothing
+        }
+
+        PowerMock.verifyAll();
+    }
 }
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