1 files changed, 100 insertions, 0 deletions
diff --git a/message-router/consumer/provider/src/main/java/org/onap/ccsdk/sli/adaptors/messagerouter/consumer/provider/impl/PollingConsumerImpl.java b/message-router/consumer/provider/src/main/java/org/onap/ccsdk/sli/adaptors/messagerouter/consumer/provider/impl/PollingConsumerImpl.java
new file mode 100644
index 00000000..263e94ca
--- /dev/null
+++ b/message-router/consumer/provider/src/main/java/org/onap/ccsdk/sli/adaptors/messagerouter/consumer/provider/impl/PollingConsumerImpl.java
@@ -0,0 +1,100 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * Copyright (C) 2017 - 2018 AT&T Intellectual Property. 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.ccsdk.sli.adaptors.messagerouter.consumer.provider.impl;
+
+import org.onap.ccsdk.sli.adaptors.messagerouter.consumer.api.PollingConsumer;
+import org.onap.ccsdk.sli.adaptors.messagerouter.consumer.api.RequestHandler;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/*
+ * java.net based client to build message router consumers
+ */
+public class PollingConsumerImpl implements PollingConsumer {
+
+    //RunnableConsumer is a private inner class so run cannot be called from other code
+    private class RunnableConsumer extends AbstractBaseConsumer implements Runnable, PollingConsumer {
+	private final Logger LOG = LoggerFactory.getLogger(PollingConsumerImpl.class);
+	private volatile Thread t;
+	private final Integer fetchPause;
+
+	public RunnableConsumer(String username, String password, String host, String authentication, Integer connectTimeout, Integer readTimeout, Integer fetchPause, String group, String id, String filter, Integer limit, Integer timeoutQueryParamValue) {
+	    super(username, password, host, authentication, connectTimeout, readTimeout, group, id, filter, limit, timeoutQueryParamValue);
+	    this.fetchPause = fetchPause;
+	}
+
+	public void start() {
+	    t = new Thread(this);
+	    t.start();
+	    LOG.info("ConsumerImpl started. Fetch period is {} ms.", fetchPause);
+	}
+
+	public void stop() {
+	    t = null;
+	    LOG.info("ConsumerImpl stopped.");
+	}
+
+	@Override
+	public void run() {
+	    if (this.url != null) {
+		Thread thisThread = Thread.currentThread();
+		while (t == thisThread) {
+		    poll();
+		    try {
+			LOG.trace("Next fetch from MessageRouter url {} after {} milliseconds.", url, fetchPause);
+			Thread.sleep(fetchPause);
+		    } catch (InterruptedException e) {
+			LOG.warn("Thread sleep was interrupted.", e);
+		    }
+		}
+	    } else {
+		LOG.error("URL is null, can't listen for messages");
+	    }
+	}
+
+	@Override
+	public void close() throws Exception {
+	    stop();
+	}
+    }
+
+    private RunnableConsumer c;
+
+    public PollingConsumerImpl(String username, String password, String host, String authentication, Integer connectTimeout, Integer readTimeout, Integer fetchPause, String group, String id, String filter, Integer limit, Integer timeoutQueryParamValue) {
+	c = new RunnableConsumer(username, password, host, authentication, connectTimeout, readTimeout, fetchPause, group, id, filter, limit, timeoutQueryParamValue);
+    }
+
+    @Override
+    public void start() {
+	c.start();
+    }
+
+    @Override
+    public void registerHandler(String topic, RequestHandler requestHandler) {
+	c.registerHandler(topic, requestHandler);
+    }
+
+    @Override
+    public void close() throws Exception {
+	c.close();
+    }
+}