1 files changed, 70 insertions, 0 deletions
diff --git a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/PeeredReference.java b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/PeeredReference.java
new file mode 100644
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+++ b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/PeeredReference.java
@@ -0,0 +1,70 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event;
+
+import org.onap.policy.apex.service.parameters.eventhandler.EventHandlerPeeredMode;
+
+/**
+ * This class holds a reference to an event consumer and producer that have been peered.
+ * 
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class PeeredReference {
+    // The consumer putting events into APEX
+    private final ApexEventConsumer peeredConsumer;
+
+    // The synchronous producer taking events out of APEX
+    private final ApexEventProducer peeredProducer;
+
+    /**
+     * Create a peered consumer/producer reference
+     * 
+     * @param peeredMode the peered mode for which to return the reference
+     * @param consumer the consumer that is receiving event
+     * @param producer the producer that is sending events
+     */
+    public PeeredReference(final EventHandlerPeeredMode peeredMode, final ApexEventConsumer consumer, final ApexEventProducer producer) {
+        this.peeredConsumer = consumer;
+        this.peeredProducer = producer;
+
+        // Set the peered reference on the producer and consumer
+        peeredConsumer.setPeeredReference(peeredMode, this);
+        peeredProducer.setPeeredReference(peeredMode, this);
+    }
+
+    /**
+     * Gets the synchronous consumer putting events into the cache.
+     *
+     * @return the source synchronous consumer
+     */
+    public ApexEventConsumer getPeeredConsumer() {
+        return peeredConsumer;
+    }
+
+    /**
+     * Gets the synchronous producer taking events from the cache.
+     *
+     * @return the synchronous producer that is taking events from the cache
+     */
+    public ApexEventProducer getPeeredProducer() {
+        return peeredProducer;
+    }
+}