Initial OpenECOMP Portal commit
[portal.git] / ecomp-portal-BE / src / main / java / org / openecomp / portalapp / portal / ueb / EPUebHelper.java
diff --git a/ecomp-portal-BE/src/main/java/org/openecomp/portalapp/portal/ueb/EPUebHelper.java b/ecomp-portal-BE/src/main/java/org/openecomp/portalapp/portal/ueb/EPUebHelper.java
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+/*-
+ * ================================================================================
+ * eCOMP Portal
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property
+ * ================================================================================
+ * 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.openecomp.portalapp.portal.ueb;
+
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.LinkedList;
+import java.util.List;
+
+import javax.annotation.PostConstruct;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.openecomp.portalapp.portal.domain.EPApp;
+import org.openecomp.portalapp.portal.domain.EcompApp;
+import org.openecomp.portalapp.portal.logging.aop.EPMetricsLog;
+import org.openecomp.portalapp.portal.logging.format.EPAppMessagesEnum;
+import org.openecomp.portalapp.portal.logging.logic.EPLogUtil;
+import org.openecomp.portalapp.portal.service.EPAppService;
+import org.openecomp.portalapp.portal.utils.EcompPortalUtils;
+import org.openecomp.portalsdk.core.logging.logic.EELFLoggerDelegate;
+import org.openecomp.portalsdk.core.onboarding.crossapi.PortalApiConstants;
+import org.openecomp.portalsdk.core.onboarding.crossapi.PortalApiProperties;
+import org.openecomp.portalsdk.core.onboarding.ueb.Helper;
+import org.openecomp.portalsdk.core.onboarding.ueb.Publisher;
+import org.openecomp.portalsdk.core.onboarding.ueb.UebException;
+import org.openecomp.portalsdk.core.onboarding.ueb.UebManager;
+import org.openecomp.portalsdk.core.onboarding.ueb.UebMsg;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+@Component
+@Transactional
+@org.springframework.context.annotation.Configuration
+@EnableAspectJAutoProxy
+public class EPUebHelper {
+       EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(EPUebHelper.class);
+       
+       @Autowired
+       EPAppService appsService;
+       
+       
+       @Autowired
+       private SessionFactory sessionFactory;
+       
+       @SuppressWarnings("unused")
+       private Publisher epPublisher;
+       
+       public EPUebHelper() {
+               
+       }
+       //
+       // This should only be called by the ECOMP Portal App, other Apps have just one publisher and use appPublisher
+       //
+       @SuppressWarnings("unused")
+       @EPMetricsLog
+       public void refreshPublisherList()
+       {
+               Session localSession = null;
+           boolean addedPublisher = false;
+           
+               try {
+                       localSession = sessionFactory.openSession();
+               
+                       List<EcompApp> apps = appsService.getEcompAppAppsFullList();
+                       for (int i = 0; i < apps.size(); i++) 
+                       {
+                               if ((apps.get(i).isEnabled()) &&
+                                       (apps.get(i).getUebTopicName() != null) &&
+                                       !(apps.get(i).getUebTopicName().toUpperCase().contains("ECOMP-PORTAL-INBOX")))
+                               {
+                                       logger.debug(EELFLoggerDelegate.debugLogger, "UEBManager adding publisher for " + apps.get(i).getUebTopicName());
+                                       UebManager.getInstance().addPublisher(apps.get(i).getUebTopicName());
+                       addedPublisher = true;
+                           }
+                               else if ((apps.get(i).getId() != 1) && // App may have been disabled, remove the publisher
+                                                !(apps.get(i).isEnabled()))
+                               {
+                                       if(apps.get(i).getUebTopicName()!=null){
+                                               UebManager.getInstance().removePublisher(apps.get(i).getUebTopicName());
+                                       }
+                               }
+                       }
+               }
+               catch (Exception e)
+               {
+                       EPLogUtil.logEcompError(EPAppMessagesEnum.BeUebSystemError, "add/remove Publisher");
+                       String stackTrace = EcompPortalUtils.getStackTrace(e);
+                       logger.error(EELFLoggerDelegate.errorLogger, "Exception occurred while refreshing the publisher list. Details: " + stackTrace);
+               }
+               
+               //publisherList.print();
+               
+               if (addedPublisher == true) // Give publishers time to initialize
+               {
+                       Helper.sleep(400);
+               }
+       }
+       
+       //@PostConstruct
+       //@EPMetricsLog
+       public void initUeb() {
+               try {
+                       epPublisher = new Publisher(PortalApiProperties.getProperty(PortalApiConstants.UEB_APP_KEY), 
+                                                           PortalApiProperties.getProperty(PortalApiConstants.UEB_APP_SECRET), 
+                                                           PortalApiProperties.getProperty(PortalApiConstants.ECOMP_PORTAL_INBOX_NAME));
+               } catch (Exception e) {
+                       EPLogUtil.logEcompError(EPAppMessagesEnum.BeUebConnectionError, e.getMessage());
+                       String stackTrace = EcompPortalUtils.getStackTrace(e);
+                       logger.error(EELFLoggerDelegate.errorLogger, "Exception occurred while initializing the publisher. Details: " + stackTrace);
+               }
+               
+               Thread thread = new Thread("EPUebManager: postConstructMethod - refreshPublisherList") {
+                   public void run(){
+                       refreshPublisherList();
+                   }
+               };
+               if (thread != null) {
+                   thread.start();
+               }
+       }
+
+       @EPMetricsLog
+       public void addPublisher(EPApp app) {
+               // TODO Auto-generated method stub
+               try {
+                       UebManager.getInstance().addPublisher(app.getUebTopicName());
+               } catch (UebException e) {
+                       String stackTrace = EcompPortalUtils.getStackTrace(e);
+                       logger.error(EELFLoggerDelegate.errorLogger, "Exception while adding a publisher. Details: " + stackTrace);
+               }
+       }
+       
+       public boolean checkAvailability() {
+               
+               //
+               //  Test existence of topic at UEB url
+               //
+               //  
+               //
+               boolean available = true;
+               LinkedList<String> urlList = Helper.uebUrlList();
+               if (!urlList.isEmpty()) {
+                   String url = "http://" + urlList.getFirst() + ":3904/topics/" + PortalApiProperties.getProperty(PortalApiConstants.ECOMP_PORTAL_INBOX_NAME);
+                   if (!url.isEmpty()) {
+                       try {
+                           URL siteURL = new URL(url);
+                           HttpURLConnection connection = (HttpURLConnection) siteURL.openConnection();
+                           connection.setRequestMethod("GET");
+                           connection.connect();
+                    
+                           int code = connection.getResponseCode();
+                           if (code == 200) {
+                               available = true;
+                           }
+                           else {
+                               EPLogUtil.logEcompError(EPAppMessagesEnum.BeUebConnectionError, url);
+                               available = false;
+                               logger.warn(EELFLoggerDelegate.errorLogger, "Warning! UEB topic existence check failed, topic = " + url );
+                               logger.debug(EELFLoggerDelegate.debugLogger, "Warning! UEB topic existence check failed, topic = " + url );
+                           }
+                       }
+                       catch (Exception e) {
+                           available = false;
+                           String stackTrace = EcompPortalUtils.getStackTrace(e);
+                                       logger.error(EELFLoggerDelegate.errorLogger, "Exception occurred while performing the UEB Healthcheck. Details: " + stackTrace);
+                       }
+                   }
+               }
+               return available;
+       }
+       
+    public boolean MessageCanBeSentToTopic() {
+    
+       boolean sentMsgSuccessfully = false;
+       
+           UebMsg msg = new UebMsg();
+           msg.putSourceTopicName(PortalApiProperties.getProperty(PortalApiConstants.ECOMP_PORTAL_INBOX_NAME));
+           msg.putPayload("Pinging topic for health check");
+           msg.putMsgType(EPUebMsgTypes.UEB_MSG_TYPE_HEALTH_CHECK);
+       
+           try {
+                  // epPublisher.send(msg);
+                   sentMsgSuccessfully = true;
+           } 
+           catch (Exception e) {
+               EPLogUtil.logEcompError(EPAppMessagesEnum.BeHealthCheckUebClusterError);
+               String stackTrace = EcompPortalUtils.getStackTrace(e);
+                   sentMsgSuccessfully = false;
+                   logger.warn(EELFLoggerDelegate.errorLogger, "Warning! could not successfully publish a UEB msg to " 
+                                    + PortalApiProperties.getProperty(PortalApiConstants.ECOMP_PORTAL_INBOX_NAME) + " exception : " + stackTrace);
+           } 
+           
+           return sentMsgSuccessfully;
+    }
+    
+}
+
+