Initial code submit for Event Bus Client library

Change-Id: If0ff82c669872c734ebe0c72bc022beb96c53d11
Issue-ID: AAI-700
Signed-off-by: Gilding, Joyce (jg640n) <Joyce.Gilding@amdocs.com>

2 files changed, 171 insertions, 0 deletions

diff --git a/event-client-kafka/src/test/java/org/onap/aai/event/client/TestKafkaEventConsumer.java b/event-client-kafka/src/test/java/org/onap/aai/event/client/TestKafkaEventConsumer.java
new file mode 100644
index 0000000..cd9993b
--- /dev/null
+++ b/event-client-kafka/src/test/java/org/onap/aai/event/client/TestKafkaEventConsumer.java
@@ -0,0 +1,94 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017 European Software Marketing Ltd.
+ * ================================================================================
+ * 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+
+package org.onap.aai.event.client;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.apache.kafka.clients.consumer.ConsumerRecords;
+import org.apache.kafka.clients.consumer.KafkaConsumer;
+import org.apache.kafka.common.TopicPartition;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+
+@RunWith(MockitoJUnitRunner.class)
+public class TestKafkaEventConsumer {
+
+    @Mock
+    public KafkaConsumer<String, String> mockKafkaConsumer;
+
+    @Before
+    public void init() throws Exception {
+        KafkaEventConsumer.setConsumerFactory(props -> mockKafkaConsumer);
+    }
+
+    @Test
+    public void testConstructor() {
+        new KafkaEventConsumer("", "", "");
+    }
+
+    @Test
+    public void consumeZeroRecords() throws Exception {
+        Mockito.when(mockKafkaConsumer.poll(Mockito.anyLong())).thenReturn(ConsumerRecords.empty());
+        KafkaEventConsumer consumer = new KafkaEventConsumer("", "", "");
+        consumer.consume();
+        consumer.consumeWithOffsets();
+        consumer.consumeAndCommit();
+        consumer.close();
+    }
+
+    @Test
+    public void consumeMultipleRecords() throws Exception {
+        Map<TopicPartition, List<ConsumerRecord<String, String>>> records = new HashMap<>();
+        records.put(new TopicPartition(null, 0),
+                Arrays.asList(new ConsumerRecord<String, String>("topic", 0, 0, "key", "value")));
+        Mockito.when(mockKafkaConsumer.poll(Mockito.anyLong())).thenReturn(new ConsumerRecords<>(records));
+        KafkaEventConsumer consumer = new KafkaEventConsumer("", "", "");
+        consumer.consume();
+        consumer.consumeWithOffsets();
+        consumer.consumeAndCommit();
+        consumer.close();
+    }
+
+    @Test
+    public void commitOffsets() throws Exception {
+        List<TopicPartition> partitionsList = Arrays.asList(new TopicPartition(null, 0));
+        Set<TopicPartition> partitionsSet = Collections.unmodifiableSet(new HashSet<TopicPartition>(partitionsList));
+        Mockito.when(mockKafkaConsumer.assignment()).thenReturn(partitionsSet);
+        KafkaEventConsumer consumer = new KafkaEventConsumer("", "", "");
+        consumer.commitOffsets();
+        consumer.commitOffsets(0L);
+        consumer.close();
+    }
+
+}
diff --git a/event-client-kafka/src/test/java/org/onap/aai/event/client/TestKafkaEventPublisher.java b/event-client-kafka/src/test/java/org/onap/aai/event/client/TestKafkaEventPublisher.java
new file mode 100644
index 0000000..8cb1dec
--- /dev/null
+++ b/event-client-kafka/src/test/java/org/onap/aai/event/client/TestKafkaEventPublisher.java
@@ -0,0 +1,77 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017 European Software Marketing Ltd.
+ * ================================================================================
+ * 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+
+package org.onap.aai.event.client;
+
+import java.util.Arrays;
+import java.util.concurrent.Future;
+import org.apache.kafka.clients.producer.KafkaProducer;
+import org.apache.kafka.clients.producer.RecordMetadata;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+
+@RunWith(MockitoJUnitRunner.class)
+public class TestKafkaEventPublisher {
+
+    @Mock
+    public KafkaProducer<String, String> mockKafkaProducer;
+
+    @Mock
+    private Future<RecordMetadata> mockedFuture;
+
+    @Before
+    public void init() throws Exception {
+        KafkaEventPublisher.setProducerFactory(props -> mockKafkaProducer);
+    }
+
+    @Test
+    public void testConstructors() {
+        new KafkaEventPublisher("hosts", "topic");
+        new KafkaEventPublisher("hosts", "topic", 0, 0, 0);
+    }
+
+    @Test
+    public void publishSynchronous() throws Exception {
+        Mockito.when(mockKafkaProducer.send(Mockito.any())).thenReturn(mockedFuture);
+        KafkaEventPublisher publisher = new KafkaEventPublisher("hosts", "topic");
+        publisher.sendSync("");
+        publisher.sendSync(Arrays.asList(""));
+        publisher.sendSync("key", "");
+        publisher.sendSync("key", Arrays.asList(""));
+        publisher.close();
+    }
+
+    @Test
+    public void publishAsynchronous() throws Exception {
+        KafkaEventPublisher publisher = new KafkaEventPublisher("hosts", "topic");
+        publisher.sendAsync("");
+        publisher.sendAsync(Arrays.asList(""));
+        publisher.sendAsync("key", "");
+        publisher.sendAsync("key", Arrays.asList(""));
+        publisher.close();
+    }
+}