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-rw-r--r--engine-d/src/main/java/org/openo/holmes/engine/manager/DroolsEngine.java619
1 files changed, 308 insertions, 311 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 d9f55ed..ad1b4e5 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
@@ -1,311 +1,308 @@
-/**
- * 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.openo.holmes.engine.manager;
-
-
-import java.io.Serializable;
-import java.io.StringReader;
-import java.util.List;
-import java.util.Locale;
-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;
-import org.drools.builder.KnowledgeBuilder;
-import org.drools.builder.KnowledgeBuilderFactory;
-import org.drools.builder.ResourceType;
-import org.drools.conf.EventProcessingOption;
-import org.drools.definition.KnowledgePackage;
-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.openo.holmes.common.api.entity.CorrelationRule;
-import org.openo.holmes.common.api.stat.Alarm;
-import org.openo.holmes.common.config.MQConfig;
-import org.openo.holmes.common.constant.AlarmConst;
-import org.openo.holmes.common.exception.CorrelationException;
-import org.openo.holmes.common.utils.ExceptionUtil;
-import org.openo.holmes.common.utils.I18nProxy;
-import org.openo.holmes.engine.request.DeployRuleRequest;
-import org.openo.holmes.engine.wrapper.RuleMgtWrapper;
-
-@Slf4j
-@Service
-public class DroolsEngine {
- private final static int ENABLE = 1;
-
- @Inject
- private RuleMgtWrapper ruleMgtWrapper;
-
- private KnowledgeBase kbase;
-
- private KnowledgeBaseConfiguration kconf;
-
- private StatefulKnowledgeSession ksession;
-
- private KnowledgeBuilder kbuilder;
-
- @Inject
- private IterableProvider<MQConfig> mqConfigProvider;
-
- private ConnectionFactory connectionFactory;
-
- @PostConstruct
- private void init() {
- try {
- // 1. start engine
- start();
- // 2. start mq listener
- registerAlarmTopicListener();
- } catch (Exception e) {
- log.error("Start service failed: " + e.getMessage(), e);
- throw ExceptionUtil.buildExceptionResponse("Start service failed!");
- }
- }
-
- 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...");
-
- initEngineParameter();
- initDeployRule();
-
- log.info("Business Rule Engine Initialize Successfully.");
- }
-
- public void stop() {
- this.ksession.dispose();
- }
-
- private void initEngineParameter(){
- this.kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
-
- this.kconf.setOption(EventProcessingOption.STREAM);
-
- this.kconf.setProperty("drools.assertBehaviour", "equality");
-
- this.kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
-
- this.kbase = KnowledgeBaseFactory.newKnowledgeBase("D-ENGINE", this.kconf);
-
- this.ksession = kbase.newStatefulKnowledgeSession();
- }
-
- private void initDeployRule() throws CorrelationException {
- List<CorrelationRule> rules = ruleMgtWrapper.queryRuleByEnable(ENABLE);
-
- if (rules.isEmpty()) {
- return;
- }
- for (CorrelationRule rule : rules) {
- if (rule.getContent() != null) {
- deployRuleFromDB(rule.getContent());
- }
- }
- }
-
- private void deployRuleFromDB(String ruleContent) throws CorrelationException {
- StringReader reader = new StringReader(ruleContent);
- Resource res = ResourceFactory.newReaderResource(reader);
-
- if (kbuilder == null) {
- kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
- }
-
- kbuilder.add(res, ResourceType.DRL);
-
- try {
-
- kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
- } catch (Exception e) {
- throw new CorrelationException(e.getMessage(), e);
- }
-
- ksession.fireAllRules();
- }
-
- public synchronized String deployRule(DeployRuleRequest rule, Locale locale)
- throws CorrelationException {
- StringReader reader = new StringReader(rule.getContent());
- Resource res = ResourceFactory.newReaderResource(reader);
-
- if (kbuilder == null) {
- kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
- }
-
- kbuilder.add(res, ResourceType.DRL);
-
- if (kbuilder.hasErrors()) {
-
- String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
- I18nProxy.ENGINE_CONTENT_ILLEGALITY,
- new String[]{kbuilder.getErrors().toString()});
- throw new CorrelationException(errorMsg);
- }
-
- KnowledgePackage kpackage = kbuilder.getKnowledgePackages().iterator().next();
-
- if (kbase.getKnowledgePackages().contains(kpackage)) {
-
- String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
- I18nProxy.ENGINE_CONTENT_ILLEGALITY,new String[]{
- I18nProxy.getInstance().getValue(locale, I18nProxy.ENGINE_CONTAINS_PACKAGE)});
-
- throw new CorrelationException(errorMsg);
- }
- try {
-
- kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
- } catch (Exception e) {
-
- String errorMsg =
- I18nProxy.getInstance().getValue(locale, I18nProxy.ENGINE_DEPLOY_RULE_FAILED);
- throw new CorrelationException(errorMsg, e);
- }
-
- ksession.fireAllRules();
- return kpackage.getName();
- }
-
- public synchronized void undeployRule(String packageName, Locale locale)
- throws CorrelationException {
-
- KnowledgePackage pkg = kbase.getKnowledgePackage(packageName);
-
- if (null == pkg) {
- String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
- I18nProxy.ENGINE_DELETE_RULE_NULL,
- new String[]{packageName});
- throw new CorrelationException(errorMsg);
- }
-
- try {
-
- kbase.removeKnowledgePackage(pkg.getName());
- } catch (Exception e) {
- String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
- I18nProxy.ENGINE_DELETE_RULE_FAILED, new String[]{packageName});
- throw new CorrelationException(errorMsg, e);
- }
- }
-
- public void compileRule(String content, Locale locale)
- throws CorrelationException {
- StringReader reader = new StringReader(content);
- Resource res = ResourceFactory.newReaderResource(reader);
-
- if (kbuilder == null) {
- kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
- }
-
- kbuilder.add(res, ResourceType.DRL);
-
- if (kbuilder.hasErrors()) {
- String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
- I18nProxy.ENGINE_CONTENT_ILLEGALITY,
- new String[]{kbuilder.getErrors().toString()});
- log.error(errorMsg);
- throw new CorrelationException(errorMsg);
- }
- }
-
- public void putRaisedIntoStream(Alarm raiseAlarm) {
- FactHandle factHandle = this.ksession.getFactHandle(raiseAlarm);
- if (factHandle != null) {
- this.ksession.retract(factHandle);
- }
- this.ksession.insert(raiseAlarm);
- 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();
- }
- }
-}
+/**
+ * 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.openo.holmes.engine.manager;
+
+
+import java.io.Serializable;
+import java.io.StringReader;
+import java.util.List;
+import java.util.Locale;
+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;
+import org.drools.builder.KnowledgeBuilder;
+import org.drools.builder.KnowledgeBuilderFactory;
+import org.drools.builder.ResourceType;
+import org.drools.conf.EventProcessingOption;
+import org.drools.definition.KnowledgePackage;
+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.openo.holmes.common.api.entity.CorrelationRule;
+import org.openo.holmes.common.api.stat.Alarm;
+import org.openo.holmes.common.config.MQConfig;
+import org.openo.holmes.common.constant.AlarmConst;
+import org.openo.holmes.common.exception.CorrelationException;
+import org.openo.holmes.common.utils.ExceptionUtil;
+import org.openo.holmes.common.utils.I18nProxy;
+import org.openo.holmes.engine.request.DeployRuleRequest;
+import org.openo.holmes.engine.wrapper.RuleMgtWrapper;
+
+@Slf4j
+@Service
+public class DroolsEngine {
+
+ private final static int ENABLE = 1;
+
+ @Inject
+ private RuleMgtWrapper ruleMgtWrapper;
+
+ private KnowledgeBase kbase;
+
+ private KnowledgeBaseConfiguration kconf;
+
+ private StatefulKnowledgeSession ksession;
+
+ private KnowledgeBuilder kbuilder;
+
+ @Inject
+ private IterableProvider<MQConfig> mqConfigProvider;
+
+ private ConnectionFactory connectionFactory;
+
+ @PostConstruct
+ private void init() {
+ try {
+ // 1. start engine
+ start();
+ // 2. start mq listener
+ registerAlarmTopicListener();
+ } catch (Exception e) {
+ log.error("Start service failed: " + e.getMessage(), e);
+ throw ExceptionUtil.buildExceptionResponse("Start service failed!");
+ }
+ }
+
+ 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...");
+
+ initEngineParameter();
+ initDeployRule();
+
+ log.info("Business Rule Engine Initialize Successfully.");
+ }
+
+ public void stop() {
+ this.ksession.dispose();
+ }
+
+ private void initEngineParameter() {
+ this.kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
+
+ this.kconf.setOption(EventProcessingOption.STREAM);
+
+ this.kconf.setProperty("drools.assertBehaviour", "equality");
+
+ this.kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
+
+ this.kbase = KnowledgeBaseFactory.newKnowledgeBase("D-ENGINE", this.kconf);
+
+ this.ksession = kbase.newStatefulKnowledgeSession();
+ }
+
+ private void initDeployRule() throws CorrelationException {
+ List<CorrelationRule> rules = ruleMgtWrapper.queryRuleByEnable(ENABLE);
+
+ if (rules.isEmpty()) {
+ return;
+ }
+ for (CorrelationRule rule : rules) {
+ if (rule.getContent() != null) {
+ deployRuleFromDB(rule.getContent());
+ }
+ }
+ }
+
+ private void deployRuleFromDB(String ruleContent) throws CorrelationException {
+ StringReader reader = new StringReader(ruleContent);
+ Resource res = ResourceFactory.newReaderResource(reader);
+
+ kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
+
+ kbuilder.add(res, ResourceType.DRL);
+
+ try {
+
+ kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
+ } catch (Exception e) {
+ throw new CorrelationException(e.getMessage(), e);
+ }
+ ksession.fireAllRules();
+ }
+
+ public synchronized String deployRule(DeployRuleRequest rule, Locale locale)
+ throws CorrelationException {
+ StringReader reader = new StringReader(rule.getContent());
+ Resource res = ResourceFactory.newReaderResource(reader);
+
+ kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
+
+ kbuilder.add(res, ResourceType.DRL);
+
+ if (kbuilder.hasErrors()) {
+
+ String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
+ I18nProxy.ENGINE_CONTENT_ILLEGALITY,
+ new String[]{kbuilder.getErrors().toString()});
+ throw new CorrelationException(errorMsg);
+ }
+
+ KnowledgePackage kpackage = kbuilder.getKnowledgePackages().iterator().next();
+
+ if (kbase.getKnowledgePackages().contains(kpackage)) {
+
+ String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
+ I18nProxy.ENGINE_CONTENT_ILLEGALITY, new String[]{
+ I18nProxy.getInstance().getValue(locale, I18nProxy.ENGINE_CONTAINS_PACKAGE)});
+
+ throw new CorrelationException(errorMsg);
+ }
+ try {
+
+ kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
+ } catch (Exception e) {
+
+ String errorMsg =
+ I18nProxy.getInstance().getValue(locale, I18nProxy.ENGINE_DEPLOY_RULE_FAILED);
+ throw new CorrelationException(errorMsg, e);
+ }
+
+ ksession.fireAllRules();
+ return kpackage.getName();
+ }
+
+ public synchronized void undeployRule(String packageName, Locale locale)
+ throws CorrelationException {
+
+ KnowledgePackage pkg = kbase.getKnowledgePackage(packageName);
+
+ if (null == pkg) {
+ String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
+ I18nProxy.ENGINE_DELETE_RULE_NULL,
+ new String[]{packageName});
+ throw new CorrelationException(errorMsg);
+ }
+
+ try {
+
+ kbase.removeKnowledgePackage(pkg.getName());
+ } catch (Exception e) {
+ String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
+ I18nProxy.ENGINE_DELETE_RULE_FAILED, new String[]{packageName});
+ throw new CorrelationException(errorMsg, e);
+ }
+ }
+
+ public void compileRule(String content, Locale locale)
+ throws CorrelationException {
+ StringReader reader = new StringReader(content);
+ Resource res = ResourceFactory.newReaderResource(reader);
+
+ kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
+
+ kbuilder.add(res, ResourceType.DRL);
+
+ if (kbuilder.hasErrors()) {
+ String errorMsg = I18nProxy.getInstance().getValueByArgs(locale,
+ I18nProxy.ENGINE_CONTENT_ILLEGALITY,
+ new String[]{kbuilder.getErrors().toString()});
+ log.error(errorMsg);
+ throw new CorrelationException(errorMsg);
+ }
+ }
+
+ public void putRaisedIntoStream(Alarm raiseAlarm) {
+ FactHandle factHandle = this.ksession.getFactHandle(raiseAlarm);
+ if (factHandle != null) {
+ this.ksession.retract(factHandle);
+ }
+ this.ksession.insert(raiseAlarm);
+ 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();
+ }
+ }
+ }
+}