Fetch configuration from CBS

- Fix memory leak.
- Add reactive configuration fetching from Consul. Now configuration is updated when any change in VES configuration has been done in Consul.

Change-Id: I9cd42e04844c9e99d4d03951185523b569dc9483
Issue-ID: DCAEGEN2-2495
Signed-off-by: Zebek Bogumil <bogumil.zebek@nokia.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/src/test/java/org/onap/dcae/ApplicationConfigurationListenerTest.java b/src/test/java/org/onap/dcae/ApplicationConfigurationListenerTest.java
new file mode 100644
index 00000000..49132f1e
--- /dev/null
+++ b/src/test/java/org/onap/dcae/ApplicationConfigurationListenerTest.java
@@ -0,0 +1,67 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * VES Collector
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. 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.onap.dcae;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.Spy;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.onap.dcae.configuration.ConfigurationHandler;
+
+import java.time.Duration;
+
+import static org.mockito.ArgumentMatchers.any;
+
+@RunWith(MockitoJUnitRunner.class)
+public class ApplicationConfigurationListenerTest {
+
+    @Mock
+    private ConfigurationHandler configurationHandler;
+
+    @InjectMocks
+    @Spy
+    private ApplicationConfigurationListener applicationConfigurationListener;
+
+    @Test
+    public void shouldStopJobAndCloseConnectionWhenErrorOccurredDuringListenAtConsulChange() {
+
+       // given
+       Mockito.doThrow(new RuntimeException("Simulate exception")).when(configurationHandler).startListen(any());
+
+       // when
+       applicationConfigurationListener.run();
+
+       // then
+        Mockito.verify(applicationConfigurationListener).stopListeningForConfigurationUpdates(any());
+    }
+
+    @Test
+    public void shouldSendReloadAction() {
+
+        // when
+        applicationConfigurationListener.reload(Duration.ofMillis(1));
+
+        // then
+        Mockito.verify(applicationConfigurationListener).sendReloadAction();
+    }
+}