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-rw-r--r--engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/DMaaPPollingRequest.java47
-rw-r--r--engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java51
-rw-r--r--engine-d/src/main/java/org/onap/holmes/engine/manager/DroolsEngine.java91
-rw-r--r--engine-d/src/main/java/org/onap/holmes/engine/mqconsumer/MQConsumer.java114
4 files changed, 215 insertions, 88 deletions
diff --git a/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/DMaaPPollingRequest.java b/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/DMaaPPollingRequest.java
new file mode 100644
index 0000000..24e0817
--- /dev/null
+++ b/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/DMaaPPollingRequest.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2017 ZTE Corporation.
+ *
+ * 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.onap.holmes.engine.dmaappolling;
+
+import java.util.ArrayList;
+import java.util.List;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.holmes.common.api.stat.VesAlarm;
+import org.onap.holmes.common.exception.CorrelationException;
+import org.onap.holmes.dsa.dmaappolling.Subscriber;
+import org.onap.holmes.engine.manager.DroolsEngine;
+
+@Slf4j
+public class DMaaPPollingRequest implements Runnable {
+
+ private Subscriber subscriber;
+
+ private DroolsEngine droolsEngine;
+
+ public DMaaPPollingRequest(Subscriber subscriber, DroolsEngine droolsEngine) {
+ this.subscriber = subscriber;
+ this.droolsEngine = droolsEngine;
+ }
+
+ public void run() {
+ List<VesAlarm> vesAlarmList = new ArrayList<>();
+ try {
+ vesAlarmList = subscriber.subscribe();
+ } catch (CorrelationException e) {
+ log.error("Failed polling request alarm." + e.getMessage());
+ }
+ vesAlarmList.forEach(vesAlarm -> droolsEngine.putRaisedIntoStream(vesAlarm));
+ }
+}
diff --git a/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java b/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java
new file mode 100644
index 0000000..1e71899
--- /dev/null
+++ b/engine-d/src/main/java/org/onap/holmes/engine/dmaappolling/SubscriberAction.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2017 ZTE Corporation.
+ *
+ * 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.onap.holmes.engine.dmaappolling;
+
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+import javax.inject.Inject;
+import org.jvnet.hk2.annotations.Service;
+import org.onap.holmes.dsa.dmaappolling.Subscriber;
+import org.onap.holmes.engine.manager.DroolsEngine;
+
+@Service
+public class SubscriberAction {
+
+ @Inject
+ private DroolsEngine droolsEngine;
+
+ private ConcurrentHashMap<String, ScheduledFuture> pollingRequests = new ConcurrentHashMap<String, ScheduledFuture>();
+ private ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
+
+ public void addSubscriber(Subscriber subscriber) {
+ DMaaPPollingRequest pollingTask = new DMaaPPollingRequest(subscriber, droolsEngine);
+ ScheduledFuture future = service
+ .scheduleAtFixedRate(pollingTask, 0, subscriber.getPeriod(), TimeUnit.MILLISECONDS);
+ pollingRequests.put(subscriber.getTopic(), future);
+ }
+
+ public void removeSubscriber(Subscriber subscriber) {
+ ScheduledFuture future = pollingRequests.get(subscriber.getTopic());
+ if (future != null) {
+ future.cancel(true);
+ }
+ pollingRequests.remove(subscriber.getTopic());
+ }
+}
diff --git a/engine-d/src/main/java/org/onap/holmes/engine/manager/DroolsEngine.java b/engine-d/src/main/java/org/onap/holmes/engine/manager/DroolsEngine.java
index 5d1f442..b23dde0 100644
--- a/engine-d/src/main/java/org/onap/holmes/engine/manager/DroolsEngine.java
+++ b/engine-d/src/main/java/org/onap/holmes/engine/manager/DroolsEngine.java
@@ -16,7 +16,6 @@
package org.onap.holmes.engine.manager;
-import java.io.Serializable;
import java.io.StringReader;
import java.util.HashSet;
import java.util.List;
@@ -24,17 +23,7 @@ import java.util.Locale;
import java.util.Set;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
-import javax.jms.Connection;
-import javax.jms.ConnectionFactory;
-import javax.jms.Destination;
-import javax.jms.JMSException;
-import javax.jms.Message;
-import javax.jms.MessageConsumer;
-import javax.jms.MessageListener;
-import javax.jms.Session;
import lombok.extern.slf4j.Slf4j;
-import org.apache.activemq.ActiveMQConnectionFactory;
-import org.apache.activemq.command.ActiveMQObjectMessage;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseConfiguration;
import org.drools.KnowledgeBaseFactory;
@@ -47,13 +36,10 @@ import org.drools.io.Resource;
import org.drools.io.ResourceFactory;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.rule.FactHandle;
-import org.glassfish.hk2.api.IterableProvider;
import org.jvnet.hk2.annotations.Service;
+import org.onap.holmes.common.api.stat.VesAlarm;
import org.onap.holmes.engine.request.DeployRuleRequest;
import org.onap.holmes.common.api.entity.CorrelationRule;
-import org.onap.holmes.common.api.stat.Alarm;
-import org.onap.holmes.common.config.MQConfig;
-import org.onap.holmes.common.constant.AlarmConst;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.common.utils.ExceptionUtil;
import org.onap.holmes.engine.wrapper.RuleMgtWrapper;
@@ -69,34 +55,18 @@ public class DroolsEngine {
private KnowledgeBase kbase;
private KnowledgeBaseConfiguration kconf;
private StatefulKnowledgeSession ksession;
- @Inject
- private IterableProvider<MQConfig> mqConfigProvider;
- private ConnectionFactory connectionFactory;
@PostConstruct
private void init() {
try {
- // 1. start engine
+ // start engine
start();
- // 2. start mq listener
- registerAlarmTopicListener();
} catch (Exception e) {
log.error("Failed to start the service: " + e.getMessage(), e);
throw ExceptionUtil.buildExceptionResponse("Failed to start the drools engine!");
}
}
- private void registerAlarmTopicListener() {
- String brokerURL =
- "tcp://" + mqConfigProvider.get().brokerIp + ":" + mqConfigProvider.get().brokerPort;
- connectionFactory = new ActiveMQConnectionFactory(mqConfigProvider.get().brokerUsername,
- mqConfigProvider.get().brokerPassword, brokerURL);
-
- AlarmMqMessageListener listener = new AlarmMqMessageListener();
- listener.receive();
- }
-
-
private void start() throws CorrelationException {
log.info("Drools Engine Initialize Beginning...");
@@ -219,7 +189,7 @@ public class DroolsEngine {
}
}
- public void putRaisedIntoStream(Alarm raiseAlarm) {
+ public void putRaisedIntoStream(VesAlarm raiseAlarm) {
FactHandle factHandle = this.ksession.getFactHandle(raiseAlarm);
if (factHandle != null) {
this.ksession.retract(factHandle);
@@ -228,59 +198,4 @@ public class DroolsEngine {
this.ksession.fireAllRules();
}
- class AlarmMqMessageListener implements MessageListener {
-
- private Connection connection = null;
- private Session session = null;
- private Destination destination = null;
- private MessageConsumer consumer = null;
-
- private void initialize() throws JMSException {
- connection = connectionFactory.createConnection();
- session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
- destination = session.createTopic(AlarmConst.MQ_TOPIC_NAME_ALARM);
- consumer = session.createConsumer(destination);
- connection.start();
- }
-
- public void receive() {
- try {
- initialize();
- consumer.setMessageListener(this);
- } catch (JMSException e) {
- log.error("Failed to connect to the MQ service : " + e.getMessage(), e);
- try {
- close();
- } catch (JMSException e1) {
- log.error("Failed close connection " + e1.getMessage(), e1);
- }
- }
- }
-
- public void onMessage(Message arg0) {
- ActiveMQObjectMessage objectMessage = (ActiveMQObjectMessage) arg0;
- try {
- Serializable object = objectMessage.getObject();
-
- if (object instanceof Alarm) {
- Alarm alarm = (Alarm) object;
- putRaisedIntoStream(alarm);
- }
- } catch (JMSException e) {
- log.error("Failed get object : " + e.getMessage(), e);
- }
- }
-
- private void close() throws JMSException {
- if (consumer != null) {
- consumer.close();
- }
- if (session != null) {
- session.close();
- }
- if (connection != null) {
- connection.close();
- }
- }
- }
}
diff --git a/engine-d/src/main/java/org/onap/holmes/engine/mqconsumer/MQConsumer.java b/engine-d/src/main/java/org/onap/holmes/engine/mqconsumer/MQConsumer.java
new file mode 100644
index 0000000..bd77312
--- /dev/null
+++ b/engine-d/src/main/java/org/onap/holmes/engine/mqconsumer/MQConsumer.java
@@ -0,0 +1,114 @@
+/**
+ * Copyright 2017 ZTE Corporation.
+ *
+ * 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.onap.holmes.engine.mqconsumer;
+
+import java.io.Serializable;
+import javax.inject.Inject;
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.Destination;
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageListener;
+import javax.jms.Session;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.activemq.ActiveMQConnectionFactory;
+import org.apache.activemq.command.ActiveMQObjectMessage;
+import org.glassfish.hk2.api.IterableProvider;
+import org.jvnet.hk2.annotations.Service;
+import org.onap.holmes.common.api.stat.VesAlarm;
+import org.onap.holmes.common.config.MQConfig;
+import org.onap.holmes.common.constant.AlarmConst;
+import org.onap.holmes.engine.manager.DroolsEngine;
+
+@Service
+@Slf4j
+@NoArgsConstructor
+public class MQConsumer {
+
+ @Inject
+ private IterableProvider<MQConfig> mqConfigProvider;
+ private ConnectionFactory connectionFactory;
+ private ConnectionFactory connectionFactory1;
+ @Inject
+ private DroolsEngine engine;
+
+ public void registerAlarmTopicListener() {
+ String brokerURL =
+ "tcp://" + mqConfigProvider.get().brokerIp + ":" + mqConfigProvider.get().brokerPort;
+ connectionFactory = new ActiveMQConnectionFactory(mqConfigProvider.get().brokerUsername,
+ mqConfigProvider.get().brokerPassword, brokerURL);
+
+ AlarmMqMessageListener listener = new AlarmMqMessageListener();
+ listener.receive();
+ }
+ class AlarmMqMessageListener implements MessageListener {
+
+ private Connection connection = null;
+ private Session session = null;
+ private Destination destination = null;
+ private MessageConsumer consumer = null;
+
+ private void initialize() throws JMSException {
+ connection = connectionFactory.createConnection();
+ session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+ destination = session.createTopic(AlarmConst.MQ_TOPIC_NAME_ALARM);
+ consumer = session.createConsumer(destination);
+ connection.start();
+ }
+
+ public void receive() {
+ try {
+ initialize();
+ consumer.setMessageListener(this);
+ } catch (JMSException e) {
+ log.error("Failed to connect to the MQ service : " + e.getMessage(), e);
+ try {
+ close();
+ } catch (JMSException e1) {
+ log.error("Failed close connection " + e1.getMessage(), e1);
+ }
+ }
+ }
+
+ public void onMessage(Message arg0) {
+ ActiveMQObjectMessage objectMessage = (ActiveMQObjectMessage) arg0;
+ try {
+ Serializable object = objectMessage.getObject();
+ if (object instanceof VesAlarm) {
+ VesAlarm vesAlarm = (VesAlarm) object;
+ engine.putRaisedIntoStream(vesAlarm);
+ }
+ } catch (JMSException e) {
+ log.error("Failed get object : " + e.getMessage(), e);
+ }
+ }
+
+ private void close() throws JMSException {
+ if (consumer != null) {
+ consumer.close();
+ }
+ if (session != null) {
+ session.close();
+ }
+ if (connection != null) {
+ connection.close();
+ }
+ }
+ }
+}