Kafka app that listens to events from applications and pushes them to a kafka bus
Change-Id: I8026f13f10aa00f6389b89459fa8ebd74de289a3
diff --git a/src/main/java/org/opencord/kafka/integrations/AaaKafkaIntegration.java b/src/main/java/org/opencord/kafka/integrations/AaaKafkaIntegration.java
new file mode 100644
index 0000000..2393b73
--- /dev/null
+++ b/src/main/java/org/opencord/kafka/integrations/AaaKafkaIntegration.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.
+ */
+
+package org.opencord.kafka.integrations;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.opencord.aaa.AuthenticationEvent;
+import org.opencord.aaa.AuthenticationEventListener;
+import org.opencord.aaa.AuthenticationService;
+import org.opencord.kafka.EventBusService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Listens for AAA events and pushes them on a Kafka bus.
+ */
+@Component(immediate = true)
+public class AaaKafkaIntegration {
+
+ public Logger log = LoggerFactory.getLogger(getClass());
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected EventBusService eventBusService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected AuthenticationService authenticationService;
+
+ private final AuthenticationEventListener listener = new InternalAuthenticationListener();
+
+ private static final String TOPIC = "authentication.events";
+
+ private static final String DEVICE_ID = "device_id";
+ private static final String PORT_NUMBER = "port_number";
+ private static final String AUTHENTICATION_STATE = "authentication_state";
+
+ @Activate
+ public void activate() {
+ authenticationService.addListener(listener);
+ log.info("Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ authenticationService.removeListener(listener);
+ log.info("Stopped");
+ }
+
+ private void handle(AuthenticationEvent event) {
+ eventBusService.send(TOPIC, serialize(event));
+ }
+
+ private JsonNode serialize(AuthenticationEvent event) {
+ ObjectMapper mapper = new ObjectMapper();
+ ObjectNode authEvent = mapper.createObjectNode();
+ authEvent.put(DEVICE_ID, event.subject().deviceId().toString());
+ authEvent.put(PORT_NUMBER, event.subject().port().toString());
+ authEvent.put(AUTHENTICATION_STATE, event.type().toString());
+ return authEvent;
+ }
+
+ private class InternalAuthenticationListener implements
+ AuthenticationEventListener {
+
+ @Override
+ public void event(AuthenticationEvent authenticationEvent) {
+ handle(authenticationEvent);
+ }
+ }
+}