Fix the rule engine not reset the fault

Issue-ID: HOLMES-47

Change-Id: I24a4c78d4fbddb1e5602fde0ac13a881d9e055ac
Signed-off-by: youbowu <wu.youbo@zte.com.cn>

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();

+            }

+        }

+    }

+}