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authorFengLiang <feng.liang1@zte.com.cn>2017-03-06 15:04:36 +0800
committerFengLiang <feng.liang1@zte.com.cn>2017-03-06 15:04:36 +0800
commitb464eec16a30627bf5237b71ba0088d458640c22 (patch)
tree2819f289d8ecac96602f16b70fbb25acfba7d56a /engine-d/src/main
parentd9a68537d20a7eea912a41ea229c3ed569f73474 (diff)
Modify MQ listener mode
Change-Id: Ided322b55ed1baff351edb03239fc06e32da3844 Issue-ID: HOLMES-47 Signed-off-by: FengLiang <feng.liang1@zte.com.cn>
Diffstat (limited to 'engine-d/src/main')
-rw-r--r--engine-d/src/main/java/org/openo/holmes/engine/manager/DroolsEngine.java78
1 files changed, 49 insertions, 29 deletions
diff --git a/engine-d/src/main/java/org/openo/holmes/engine/manager/DroolsEngine.java b/engine-d/src/main/java/org/openo/holmes/engine/manager/DroolsEngine.java
index 0ed452a..d9f55ed 100644
--- a/engine-d/src/main/java/org/openo/holmes/engine/manager/DroolsEngine.java
+++ b/engine-d/src/main/java/org/openo/holmes/engine/manager/DroolsEngine.java
@@ -16,6 +16,7 @@
package org.openo.holmes.engine.manager;
+import java.io.Serializable;
import java.io.StringReader;
import java.util.List;
import java.util.Locale;
@@ -25,11 +26,13 @@ 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.ObjectMessage;
+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;
@@ -57,11 +60,6 @@ import org.openo.holmes.engine.wrapper.RuleMgtWrapper;
@Slf4j
@Service
public class DroolsEngine {
-
- private final static String CORRELATION_RULE = "CORRELATION_RULE";
-
- private final static String CORRELATION_ALARM = "CORRELATION_ALARM";
-
private final static int ENABLE = 1;
@Inject
@@ -99,8 +97,8 @@ public class DroolsEngine {
connectionFactory = new ActiveMQConnectionFactory(mqConfigProvider.get().brokerUsername,
mqConfigProvider.get().brokerPassword, brokerURL);
- Thread thread = new Thread(new AlarmMqMessageListener());
- thread.start();
+ AlarmMqMessageListener listener = new AlarmMqMessageListener();
+ listener.receive();
}
@@ -258,34 +256,56 @@ public class DroolsEngine {
this.ksession.fireAllRules();
}
- class AlarmMqMessageListener implements Runnable {
+ class AlarmMqMessageListener implements MessageListener {
+
+ private Connection connection = null;
+ private Session session = null;
+ private Destination destination = null;
+ private MessageConsumer consumer = null;
- public void run() {
- Connection connection;
- Session session;
- Destination destination;
- MessageConsumer messageConsumer;
+ 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 {
- connection = connectionFactory.createConnection();
- connection.start();
- session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
- destination = session.createTopic(AlarmConst.MQ_TOPIC_NAME_ALARM);
- messageConsumer = session.createConsumer(destination);
-
- while (true) {
- ObjectMessage objMessage = (ObjectMessage) messageConsumer.receive(100000);
- if (objMessage != null) {
- putRaisedIntoStream((Alarm) objMessage.getObject());
- } else {
- break;
- }
+ Serializable object = objectMessage.getObject();
+
+ if (object instanceof Alarm) {
+ Alarm alarm = (Alarm) object;
+ putRaisedIntoStream(alarm);
}
} catch (JMSException e) {
- log.error("connection mq service Failed: " + e.getMessage(), 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();
}
}
-
}