1 files changed, 126 insertions, 0 deletions
diff --git a/src/test/java/org/onap/dcae/common/publishing/DMaaPPublishersCacheTest.java b/src/test/java/org/onap/dcae/common/publishing/DMaaPPublishersCacheTest.java
new file mode 100644
index 00000000..f4dbe190
--- /dev/null
+++ b/src/test/java/org/onap/dcae/common/publishing/DMaaPPublishersCacheTest.java
@@ -0,0 +1,126 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dcaegen2.collectors.ves
+ * ================================================================================
+ * Copyright (C) 2018 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.common.publishing;
+
+import static io.vavr.API.List;
+import static io.vavr.API.Map;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
+import static org.mockito.Mockito.when;
+
+import com.att.nsa.cambria.client.CambriaBatchingPublisher;
+import io.vavr.collection.Map;
+import io.vavr.control.Option;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.dcae.common.publishing.DMaaPPublishersCache.CambriaPublishersCacheLoader;
+import org.onap.dcae.common.publishing.DMaaPPublishersCache.OnPublisherRemovalListener;
+
+
+public class DMaaPPublishersCacheTest {
+
+    private String streamId1;
+    private Map<String, PublisherConfig> dMaaPConfigs;
+
+    @Before
+    public void setUp() {
+        streamId1 = "sampleStream1";
+        dMaaPConfigs = Map("sampleStream1", new PublisherConfig(List("destination1"), "topic1"));
+    }
+
+    @Test
+    public void shouldReturnTheSameCachedInstanceOnConsecutiveRetrievals() {
+        // given
+        DMaaPPublishersCache dMaaPPublishersCache = new DMaaPPublishersCache(dMaaPConfigs);
+
+        // when
+        Option<CambriaBatchingPublisher> firstPublisher = dMaaPPublishersCache.getPublisher(streamId1);
+        Option<CambriaBatchingPublisher> secondPublisher = dMaaPPublishersCache.getPublisher(streamId1);
+
+        // then
+        assertSame("should return same instance", firstPublisher.get(), secondPublisher.get());
+    }
+
+    @Test
+    public void shouldCloseCambriaPublisherOnCacheInvalidate() throws IOException, InterruptedException {
+        // given
+        CambriaBatchingPublisher cambriaPublisherMock1 = mock(CambriaBatchingPublisher.class);
+        CambriaPublishersCacheLoader cacheLoaderMock = mock(CambriaPublishersCacheLoader.class);
+        DMaaPPublishersCache dMaaPPublishersCache = new DMaaPPublishersCache(cacheLoaderMock,
+                                                                             new OnPublisherRemovalListener(),
+                                                                             dMaaPConfigs);
+        when(cacheLoaderMock.load(streamId1)).thenReturn(cambriaPublisherMock1);
+
+        // when
+        dMaaPPublishersCache.getPublisher(streamId1);
+        dMaaPPublishersCache.closePublisherFor(streamId1);
+
+        // then
+        verify(cambriaPublisherMock1).close(20, TimeUnit.SECONDS);
+
+    }
+
+    @Test
+    public void shouldReturnNoneIfThereIsNoDMaaPConfigurationForGivenStreamID() {
+        // given
+        DMaaPPublishersCache dMaaPPublishersCache = new DMaaPPublishersCache(dMaaPConfigs);
+
+        // then
+        assertTrue("should not exist", dMaaPPublishersCache.getPublisher("non-existing").isEmpty());
+    }
+
+
+    @Test
+    public void shouldCloseOnlyChangedPublishers() throws IOException, InterruptedException {
+        // given
+        CambriaBatchingPublisher cambriaPublisherMock1 = mock(CambriaBatchingPublisher.class);
+        CambriaBatchingPublisher cambriaPublisherMock2 = mock(CambriaBatchingPublisher.class);
+        CambriaPublishersCacheLoader cacheLoaderMock = mock(CambriaPublishersCacheLoader.class);
+        String firstDomain = "domain1";
+        String secondDomain = "domain2";
+        Map<String, PublisherConfig> oldConfig = Map(firstDomain,
+                                                     new PublisherConfig(List("destination1"), "topic1"),
+                                                     secondDomain,
+                                                     new PublisherConfig(List("destination2"), "topic2",
+                                                                         "user", "pass"));
+        Map<String, PublisherConfig> newConfig = Map(firstDomain, new PublisherConfig(List("destination1"), "topic1"),
+                                                     secondDomain, new PublisherConfig(List("destination2"), "topic2"));
+        DMaaPPublishersCache dMaaPPublishersCache = new DMaaPPublishersCache(cacheLoaderMock,
+                                                                             new OnPublisherRemovalListener(),
+                                                                             oldConfig);
+        when(cacheLoaderMock.load(firstDomain)).thenReturn(cambriaPublisherMock1);
+        when(cacheLoaderMock.load(secondDomain)).thenReturn(cambriaPublisherMock2);
+
+        dMaaPPublishersCache.getPublisher(firstDomain);
+        dMaaPPublishersCache.getPublisher(secondDomain);
+
+        // when
+        dMaaPPublishersCache.reconfigure(newConfig);
+
+        // then
+        verify(cambriaPublisherMock2).close(20, TimeUnit.SECONDS);
+        verifyZeroInteractions(cambriaPublisherMock1);
+    }
+}
+\ No newline at end of file