diff options
Diffstat (limited to 'dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/MockDMaaPMRSource.java')
-rw-r--r-- | dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/MockDMaaPMRSource.java | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/MockDMaaPMRSource.java b/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/MockDMaaPMRSource.java new file mode 100644 index 0000000..53b63e0 --- /dev/null +++ b/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/MockDMaaPMRSource.java @@ -0,0 +1,73 @@ +/* + * ===============================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.onap.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.onap.dcae.apod.analytics.cdap.common.exception.CDAPSettingsException; +import org.onap.dcae.apod.analytics.cdap.plugins.domain.config.dmaap.DMaaPMRSourcePluginConfig; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * A mock implementation of DMaaP MR Receiver which sends mock ves messages + * <p> + * @author Rajiv Singla . Creation Date: 2/15/2017. + */ +@Plugin(type = StreamingSource.PLUGIN_TYPE) +@Name("MockDMaaPMRSource") +@Description("Fetches DMaaP MR Messages at regular intervals") +public class MockDMaaPMRSource extends StreamingSource<StructuredRecord> { + + private static final Logger LOG = LoggerFactory.getLogger(MockDMaaPMRSource.class); + private static final long serialVersionUID = 1L; + + private final DMaaPMRSourcePluginConfig pluginConfig; + + public MockDMaaPMRSource(final DMaaPMRSourcePluginConfig pluginConfig) { + LOG.debug("Creating DMaaP MR Source plugin with plugin Config: {}", pluginConfig); + this.pluginConfig = pluginConfig; + } + + @Override + public void configurePipeline(PipelineConfigurer pipelineConfigurer) { + final Integer pollingInterval = pluginConfig.getPollingInterval(); + if (pollingInterval == null) { + final String errorMessage = "Polling Interval field must be present"; + throw new CDAPSettingsException(errorMessage, LOG, new IllegalArgumentException(errorMessage)); + } else { + LOG.info("Mock Message will be send every ms: {}", pollingInterval); + } + } + + @Override + public JavaDStream<StructuredRecord> getStream(final StreamingContext streamingContext) throws Exception { + return streamingContext.getSparkStreamingContext().receiverStream( + new MockDMaaPMRReceiver(StorageLevel.MEMORY_ONLY(), pluginConfig)); + } +} |