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+/*
+ * ===============================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.dmaap;
+
+import com.google.inject.AbstractModule;
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import org.onap.dcae.apod.analytics.dmaap.domain.config.DMaaPMRPublisherConfig;
+import org.onap.dcae.apod.analytics.dmaap.domain.config.DMaaPMRSubscriberConfig;
+import org.onap.dcae.apod.analytics.dmaap.module.AnalyticsDMaaPModule;
+import org.onap.dcae.apod.analytics.dmaap.service.publisher.DMaaPMRPublisher;
+import org.onap.dcae.apod.analytics.dmaap.service.publisher.DMaaPMRPublisherFactory;
+import org.onap.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriber;
+import org.onap.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriberFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Creates pre injected implementations for {@link DMaaPMRPublisher} and {@link DMaaPMRSubscriber}
+ * <p>
+ * Usage:
+ * <p>Create an instance of DMaaP MR Factory</p>
+ * <pre>
+ * DMaaPFactory dmaapFactory = DMaaPFactory.initalize()
+ * </pre>
+ * <p>Create a new DMaaP MR Publisher</p>
+ * <pre>
+ * DMaaPMRPublisher publisher = dmaapFactory.createPublisher(publisherConfig)
+ * </pre>
+ * <p>Create new DMaaP MR Subscriber</p>
+ * <pre>
+ * DMaaPMRSubscriber subscriber = dmaapFactory.createSubscriber(subscriberConfig)
+ * </pre>
+ * <p>
+ * <strong>All Clients must use this Factory to initalize DMaaP Message Router Publishers and Subscribers</strong>
+ * </p>
+ * <p>
+ * @author Rajiv Singla . Creation Date: 10/20/2016.
+ */
+public class DMaaPMRFactory {
+
+ private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRFactory.class);
+
+ private final Injector injector;
+
+ public DMaaPMRFactory(AbstractModule guiceModule) {
+ injector = Guice.createInjector(guiceModule);
+ }
+
+ /**
+ * Returns configured instance of {@link DMaaPMRPublisher}
+ *
+ * @param publisherConfig Publisher Config
+ * @return configured instance of DMaaP MR Publisher
+ */
+ public DMaaPMRPublisher createPublisher(@Nonnull DMaaPMRPublisherConfig publisherConfig) {
+ final DMaaPMRPublisherFactory publisherFactory = injector.getInstance(DMaaPMRPublisherFactory.class);
+ LOG.debug("Creating new DMaaP MR Publisher Instance with configuration: {}", publisherConfig);
+ final DMaaPMRPublisher dMaaPMRPublisher = publisherFactory.create(publisherConfig);
+ LOG.info("Created new DMaaP MR Publisher Instance. Publisher creation time: {}",
+ dMaaPMRPublisher.getPublisherCreationTime());
+ return dMaaPMRPublisher;
+ }
+
+ /**
+ * Returns configured instance of {@link DMaaPMRSubscriber}
+ *
+ * @param subscriberConfig Subscriber Config
+ * @return configured instance of DMaaP MR Subscriber
+ */
+ public DMaaPMRSubscriber createSubscriber(@Nonnull DMaaPMRSubscriberConfig subscriberConfig) {
+ final DMaaPMRSubscriberFactory subscriberFactory = injector.getInstance(DMaaPMRSubscriberFactory.class);
+ LOG.debug("Creating new DMaaP MR Subscriber Instance with configuration: {}", subscriberConfig);
+ final DMaaPMRSubscriber dMaaPMRSubscriber = subscriberFactory.create(subscriberConfig);
+ LOG.info("Created new DMaaP MR Subscriber Instance. Subscriber creation time: {}",
+ dMaaPMRSubscriber.getSubscriberCreationTime());
+ return dMaaPMRSubscriber;
+ }
+
+ /**
+ * Creates an instance of {@link DMaaPMRFactory}
+ *
+ * @return {@link DMaaPMRFactory} factory instance
+ */
+ public static DMaaPMRFactory create() {
+ final DMaaPMRFactory dMaaPMRFactory = new DMaaPMRFactory(new AnalyticsDMaaPModule());
+ LOG.info("Created new instance of DMaaP MR Factory");
+ return dMaaPMRFactory;
+ }
+
+
+}