1 files changed, 70 insertions, 0 deletions
diff --git a/dcae-analytics-cdap-plugins/src/main/java/org/openecomp/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRSource.java b/dcae-analytics-cdap-plugins/src/main/java/org/openecomp/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRSource.java
new file mode 100644
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+++ b/dcae-analytics-cdap-plugins/src/main/java/org/openecomp/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRSource.java
@@ -0,0 +1,70 @@
+/*
+ * ===============================LICENSE_START======================================
+ *  dcae-analytics
+ * ================================================================================
+ *    Copyright © 2017 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.openecomp.dcae.apod.analytics.cdap.plugins.streaming.dmaap;
+
+import co.cask.cdap.api.annotation.Description;
+import co.cask.cdap.api.annotation.Name;
+import co.cask.cdap.api.annotation.Plugin;
+import co.cask.cdap.api.data.format.StructuredRecord;
+import co.cask.cdap.etl.api.PipelineConfigurer;
+import co.cask.cdap.etl.api.streaming.StreamingContext;
+import co.cask.cdap.etl.api.streaming.StreamingSource;
+import org.apache.spark.storage.StorageLevel;
+import org.apache.spark.streaming.api.java.JavaDStream;
+import org.openecomp.dcae.apod.analytics.cdap.common.utils.ValidationUtils;
+import org.openecomp.dcae.apod.analytics.cdap.plugins.domain.config.dmaap.DMaaPMRSourcePluginConfig;
+import org.openecomp.dcae.apod.analytics.cdap.plugins.domain.schema.dmaap.DMaaPSourceOutputSchema;
+import org.openecomp.dcae.apod.analytics.cdap.plugins.validator.DMaaPMRSourcePluginConfigValidator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * DMaaP MR Source Plugin which polls DMaaP MR topic at frequent intervals
+ * <p>
+ * @author Rajiv Singla . Creation Date: 1/18/2017.
+ */
+@Plugin(type = StreamingSource.PLUGIN_TYPE)
+@Name("DMaaPMRSource")
+@Description("Fetches DMaaP MR Messages at regular intervals")
+public class DMaaPMRSource extends StreamingSource<StructuredRecord> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRSource.class);
+    private static final long serialVersionUID = 1L;
+
+    private final DMaaPMRSourcePluginConfig pluginConfig;
+
+    public DMaaPMRSource(final DMaaPMRSourcePluginConfig pluginConfig) {
+        LOG.debug("Creating DMaaP MR Source plugin with plugin Config: {}", pluginConfig);
+        this.pluginConfig = pluginConfig;
+    }
+
+    @Override
+    public void configurePipeline(PipelineConfigurer pipelineConfigurer) {
+        ValidationUtils.validateSettings(pluginConfig, new DMaaPMRSourcePluginConfigValidator());
+        pipelineConfigurer.getStageConfigurer().setOutputSchema(DMaaPSourceOutputSchema.getSchema());
+    }
+
+    @Override
+    public JavaDStream<StructuredRecord> getStream(final StreamingContext streamingContext) throws Exception {
+        return streamingContext.getSparkStreamingContext().receiverStream(
+                new DMaaPMRReceiver(StorageLevel.MEMORY_ONLY(), pluginConfig, streamingContext.getMetrics()));
+    }
+}