1 files changed, 102 insertions, 0 deletions
diff --git a/appc-client/client-lib/src/main/java/org/onap/appc/client/impl/protocol/UEBMessagingService.java b/appc-client/client-lib/src/main/java/org/onap/appc/client/impl/protocol/UEBMessagingService.java
new file mode 100644
index 000000000..df51861b8
--- /dev/null
+++ b/appc-client/client-lib/src/main/java/org/onap/appc/client/impl/protocol/UEBMessagingService.java
@@ -0,0 +1,102 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.
+ * 
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.client.impl.protocol;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.util.*;
+
+class UEBMessagingService implements MessagingService {
+
+    private Consumer consumer;
+    private Producer producer;
+
+    private final String DEFAULT_READ_TIMEOUT_MS = "60000";
+    private final String DEFAULT_READ_LIMIT = "1000";
+
+    private int readLimit;
+
+    private final EELFLogger LOG = EELFManager.getInstance().getLogger(UEBMessagingService.class);
+
+    @SuppressWarnings("Since15")
+    public void init(Properties props) throws IOException, GeneralSecurityException, NoSuchFieldException, IllegalAccessException {
+
+        if (props != null) {
+            String readTopic = props.getProperty(UEBPropertiesKeys.TOPIC_READ);
+            String writeTopic = props.getProperty(UEBPropertiesKeys.TOPIC_WRITE);
+            String apiKey = props.getProperty(UEBPropertiesKeys.AUTH_USER);
+            String apiSecret = props.getProperty(UEBPropertiesKeys.AUTH_SECRET);
+            String readTimeoutString = props.getProperty(UEBPropertiesKeys.TOPIC_READ_TIMEOUT, DEFAULT_READ_TIMEOUT_MS);
+            Integer readTimeout = Integer.parseInt(readTimeoutString);
+            String readLimitString = props.getProperty(UEBPropertiesKeys.READ_LIMIT, DEFAULT_READ_LIMIT);
+            readLimit = Integer.parseInt(readLimitString);
+            //get hosts pool
+            Collection<String> pool = new HashSet<String>();
+            String hostNames = props.getProperty(UEBPropertiesKeys.HOSTS);
+            if (hostNames != null && !hostNames.isEmpty()) {
+                for (String name : hostNames.split(",")) {
+                    pool.add(name);
+                }
+            }
+
+            //generate consumer id and group - same value for both
+            String consumerName = UUID.randomUUID().toString();
+            String consumerID = consumerName;
+
+            //create consumer and producer
+            consumer = new ConsumerImpl(pool, readTopic, consumerName, consumerID, readTimeout, apiKey, apiSecret);
+            producer = new ProducerImpl(pool, writeTopic, apiKey, apiSecret);
+
+            //initial consumer registration
+            try {
+                consumer.registerForRead();
+            }catch(Exception e){
+                LOG.error("Message consumer failed to register client "+consumerID);
+            }
+        }
+    }
+
+    public void send(String partition, String body) throws IOException {
+        producer.post(partition, body);
+    }
+
+    public List<String> fetch() throws IOException {
+        return consumer.fetch(readLimit);
+    }
+
+    public List<String> fetch(int limit) throws IOException {
+        return consumer.fetch(limit);
+    }
+
+    @Override
+    public void close() {
+        consumer.close();
+        producer.close();
+    }
+
+}