BRMSGateway/src/main/java/org/onap/policy/brmsInterface/BRMSPush.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP Policy Engine
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.policy.brmsInterface;
  22
  23 import java.io.File;
  24 import java.io.FileInputStream;
  25 import java.io.FileOutputStream;
  26 import java.io.IOException;
  27 import java.io.InputStream;
  28 import java.io.Writer;
  29 import java.net.URL;
  30 import java.nio.channels.Channels;
  31 import java.nio.channels.ReadableByteChannel;
  32 import java.nio.charset.StandardCharsets;
  33 import java.nio.file.Files;
  34 import java.nio.file.Path;
  35 import java.nio.file.Paths;
  36 import java.security.GeneralSecurityException;
  37 import java.util.ArrayList;
  38 import java.util.Arrays;
  39 import java.util.Collections;
  40 import java.util.Enumeration;
  41 import java.util.HashMap;
  42 import java.util.List;
  43 import java.util.Map;
  44 import java.util.Properties;
  45 import java.util.UUID;
  46 import java.util.concurrent.TimeUnit;
  47 import java.util.jar.JarEntry;
  48 import java.util.jar.JarFile;
  49
  50 import javax.persistence.EntityManager;
  51 import javax.persistence.EntityManagerFactory;
  52 import javax.persistence.EntityTransaction;
  53 import javax.persistence.Persistence;
  54 import javax.persistence.Query;
  55
  56 import org.apache.commons.io.FileUtils;
  57 import org.apache.commons.lang.StringEscapeUtils;
  58 import org.apache.maven.model.Dependency;
  59 import org.apache.maven.model.DeploymentRepository;
  60 import org.apache.maven.model.DistributionManagement;
  61 import org.apache.maven.model.Model;
  62 import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
  63 import org.apache.maven.shared.invoker.DefaultInvocationRequest;
  64 import org.apache.maven.shared.invoker.DefaultInvoker;
  65 import org.apache.maven.shared.invoker.InvocationRequest;
  66 import org.apache.maven.shared.invoker.InvocationResult;
  67 import org.apache.maven.shared.invoker.Invoker;
  68 import org.codehaus.plexus.util.IOUtil;
  69 import org.codehaus.plexus.util.WriterFactory;
  70 import org.eclipse.persistence.config.PersistenceUnitProperties;
  71 import org.onap.policy.api.PEDependency;
  72 import org.onap.policy.api.PolicyException;
  73 import org.onap.policy.brmsInterface.jpa.BRMSGroupInfo;
  74 import org.onap.policy.brmsInterface.jpa.BRMSPolicyInfo;
  75 import org.onap.policy.brmsInterface.jpa.DependencyInfo;
  76 import org.onap.policy.common.im.IntegrityMonitor;
  77 import org.onap.policy.common.logging.eelf.MessageCodes;
  78 import org.onap.policy.common.logging.eelf.PolicyLogger;
  79 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  80 import org.onap.policy.common.logging.flexlogger.Logger;
  81 import org.onap.policy.utils.BackUpHandler;
  82 import org.onap.policy.utils.BackUpMonitor;
  83 import org.onap.policy.utils.BusPublisher;
  84 import org.onap.policy.utils.PolicyUtils;
  85 import org.onap.policy.xacml.api.XACMLErrorConstants;
  86 import org.sonatype.nexus.client.NexusClient;
  87 import org.sonatype.nexus.client.NexusClientException;
  88 import org.sonatype.nexus.client.NexusConnectionException;
  89 import org.sonatype.nexus.client.rest.NexusRestClient;
  90 import org.sonatype.nexus.rest.model.NexusArtifact;
  91
  92 import com.att.nsa.cambria.client.CambriaBatchingPublisher;
  93 import com.att.nsa.cambria.client.CambriaClientBuilders;
  94 import com.att.nsa.cambria.client.CambriaClientBuilders.PublisherBuilder;
  95 import com.fasterxml.jackson.core.JsonProcessingException;
  96
  97 /**
  98  * BRMSPush: Application responsible to push policies to the BRMS PDP Policy Repository (PR). Mavenize and push policy
  99  * to PR
 100  *
 101  * @version 1.0
 102  */
 103
 104 @SuppressWarnings("deprecation")
 105 public class BRMSPush {
 106     private static final String GROUP_NAMES = "groupNames";
 107         private static final String DROOLS_APPS_TEMPLATE_GROUP = "org.onap.policy.drools-applications.controlloop.templates";
 108         private static final String DROOLS_APPS_MODEL_GROUP    = "org.onap.policy.drools-applications.controlloop.common.model-impl";
 109         private static final String META_INF = "META-INF";
 110         private static final String KMODULE_XML_FILE = "kmodule.xml";
 111         private static final String POM_XML_FILE = "pom.xml";
 112         private static final String VERSION_0_1_0 = "0.1.0";
 113         private static final String RULES = "rules";
 114         private static final String RESOURCES = "resources";
 115         private static final Logger LOGGER = FlexLogger.getLogger(BRMSPush.class.getName());
 116     private static final String PROJECTSLOCATION = "RuleProjects";
 117     private static final String[] GOALS = { "clean", "deploy" };
 118     private static final String DEFAULT_VERSION = "1.2.0-SNAPSHOT";
 119     private static final String DEPENDENCY_FILE = "dependency.json";
 120     private static final String BRMSPERSISTENCE = "brmsEclipselink.persistencexml";
 121
 122     private static Map<String, String> modifiedGroups = new HashMap<>();
 123     private static IntegrityMonitor im;
 124     private static BackUpMonitor bm;
 125     private String defaultName = null;
 126     private String repID = null;
 127     private String repName = null;
 128     private ArrayList<String> repURLs = null;
 129     private String repUserName = null;
 130     private String repPassword = null;
 131     private String policyKeyID = null;
 132     private boolean createFlag = false;
 133     private String uebList = null;
 134     private List<String> dmaapList = null;
 135     private String pubTopic = null;
 136     private PublisherBuilder pubBuilder = null;
 137     protected BusPublisher publisher = null;
 138     private Long uebDelay = Long.parseLong("20");
 139     private Long dmaapDelay = Long.parseLong("5000");
 140     private String notificationType = null;
 141     private ArrayList<ControllerPOJO> controllers;
 142     private HashMap<String, ArrayList<Object>> groupMap = new HashMap<>();
 143     private Map<String, String> policyMap = new HashMap<>();
 144     private String brmsdependencyversion;
 145     private EntityManager em;
 146     private boolean syncFlag = false;
 147
 148     public BRMSPush(String propertiesFile, BackUpHandler handler) throws PolicyException {
 149         if(propertiesFile==null || handler==null){
 150             throw new PolicyException("Error no propertiesFile or handler");
 151         }
 152         Properties config = new Properties();
 153         Path file = Paths.get(propertiesFile);
 154         if (Files.notExists(file)) {
 155             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "Config File doesn't Exist in the specified Path "
 156                     + file.toString());
 157             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 158                     + "Config File doesn't Exist in the specified Path " + file.toString());
 159         } else {
 160             if (file.toString().endsWith(".properties")) {
 161                 // Grab the Properties.
 162                 setProperty(file, config, handler);
 163             }
 164         }
 165     }
 166
 167     private void setProperty(Path file, Properties config, BackUpHandler handler) throws PolicyException {
 168         InputStream in;
 169         try {
 170             in = new FileInputStream(file.toFile());
 171             config.load(in);
 172         } catch (IOException e) {
 173             LOGGER.error(
 174                     XACMLErrorConstants.ERROR_DATA_ISSUE + "Data/File Read Error while reading from the property file.",
 175                     e);
 176             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 177                     + "Data/File Read Error while reading from the property file.");
 178         }
 179         LOGGER.info("Trying to set up IntegrityMonitor");
 180         String resourceName = null;
 181         try {
 182             LOGGER.info("Trying to set up IntegrityMonitor");
 183             resourceName = config.getProperty("RESOURCE_NAME");
 184             if (resourceName == null) {
 185                 LOGGER.warn("RESOURCE_NAME is missing setting default value. ");
 186                 resourceName = "brmsgw_pdp01";
 187             }
 188             resourceName = resourceName.trim();
 189             setIntegrityMonitor(IntegrityMonitor.getInstance(resourceName, config));
 190         } catch (Exception e) {
 191             LOGGER.error("Error starting Integerity Monitor: " + e);
 192         }
 193         LOGGER.info("Trying to set up BackUpMonitor");
 194         try {
 195             setBackupMonitor(BackUpMonitor.getInstance(BackUpMonitor.ResourceNode.BRMS.toString(), resourceName, config,
 196                     handler));
 197         } catch (Exception e) {
 198             LOGGER.error("Error starting BackUpMonitor: " + e);
 199         }
 200         if(!config.containsKey(BRMSPERSISTENCE)){
 201             config.setProperty(PersistenceUnitProperties.ECLIPSELINK_PERSISTENCE_XML, "META-INF/persistenceBRMS.xml");
 202         } else {
 203             config.setProperty(PersistenceUnitProperties.ECLIPSELINK_PERSISTENCE_XML, config.getProperty(BRMSPERSISTENCE,"META-INF/persistenceBRMS.xml"));
 204         }
 205         EntityManagerFactory emf = Persistence.createEntityManagerFactory("BRMSGW", config);
 206         em = emf.createEntityManager();
 207         defaultName = config.getProperty("defaultName");
 208         if (defaultName == null) {
 209             LOGGER.error(
 210                     XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file ");
 211             throw new PolicyException(
 212                     XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file");
 213         }
 214         defaultName = defaultName.trim();
 215         repID = config.getProperty("repositoryID");
 216         if (repID == null) {
 217             LOGGER.error(
 218                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
 219             throw new PolicyException(
 220                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
 221         }
 222         repID = repID.trim();
 223         repName = config.getProperty("repositoryName");
 224         if (repName == null) {
 225             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 226                     + "repositoryName property is missing from the property file ");
 227             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 228                     + "repositoryName property is missing from the property file ");
 229         }
 230         repName = repName.trim();
 231         String repURL = config.getProperty("repositoryURL");
 232         if (repURL == null) {
 233             LOGGER.error(
 234                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
 235             throw new PolicyException(
 236                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
 237         }
 238         if (repURL.contains(",")) {
 239             repURLs = new ArrayList<>(Arrays.asList(repURL.trim().split(",")));
 240         } else {
 241             repURLs = new ArrayList<>();
 242             repURLs.add(repURL);
 243         }
 244         repUserName = config.getProperty("repositoryUsername");
 245         repPassword = config.getProperty("repositoryPassword");
 246         if (repUserName == null || repPassword == null) {
 247             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 248                     + "repostoryUserName and respositoryPassword properties are required.");
 249             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 250                     + "repostoryUserName and respositoryPassword properties are required.");
 251         }
 252         repUserName = repUserName.trim();
 253         repPassword = repPassword.trim();
 254         policyKeyID = config.getProperty("policyKeyID");
 255         if (policyKeyID == null) {
 256             LOGGER.error(
 257                     XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
 258             throw new PolicyException(
 259                     XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
 260         }
 261         policyKeyID = policyKeyID.trim();
 262         String syncF = config.getProperty("sync", "false").trim();
 263         syncFlag = Boolean.parseBoolean(syncF);
 264         if (syncFlag) {
 265             PolicyLogger.info("SYNC Flag is turned ON. DB will be given Priority.");
 266         }
 267         brmsdependencyversion = config.getProperty("brms.dependency.version");
 268         if (brmsdependencyversion == null) {
 269             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 270                     + "brmsdependencyversion property is missing from the property file, Using default Version.");
 271             brmsdependencyversion = DEFAULT_VERSION;
 272         }
 273         brmsdependencyversion = brmsdependencyversion.trim();
 274         readGroups(config);
 275
 276         // Setup Publisher
 277         notificationType = config.getProperty("NOTIFICATION_TYPE");
 278         if ("dmaap".equalsIgnoreCase(notificationType)) {
 279
 280             LOGGER.info("Notification Type being used is DMaaP... creating instance of BusPublisher.");
 281             // Setting up the Publisher for DMaaP MR
 282             String dmaapServers = config.getProperty("NOTIFICATION_SERVERS");
 283             pubTopic = config.getProperty("NOTIFICATION_TOPIC");
 284             String aafLogin = config.getProperty("CLIENT_ID").trim();
 285             String aafPassword = config.getProperty("CLIENT_KEY").trim();
 286
 287             if (dmaapServers == null || pubTopic == null) {
 288                 LOGGER.error(
 289                         XACMLErrorConstants.ERROR_DATA_ISSUE + "DMaaP properties are missing from the property file ");
 290                 throw new PolicyException(
 291                         XACMLErrorConstants.ERROR_DATA_ISSUE + "DMaaP properties are missing from the property file ");
 292             }
 293
 294             dmaapServers = dmaapServers.trim();
 295             pubTopic = pubTopic.trim();
 296
 297             if (dmaapServers.contains(",")) {
 298                 dmaapList = new ArrayList<>(Arrays.asList(dmaapServers.split("\\s*,\\s*")));
 299             } else {
 300                 dmaapList = new ArrayList<>();
 301                 dmaapList.add(dmaapServers);
 302             }
 303
 304             this.publisher = new BusPublisher.DmaapPublisherWrapper(this.dmaapList, this.pubTopic, aafLogin,
 305                     aafPassword);
 306
 307             String dDelay = config.getProperty("NOTIFICATION_DELAY");
 308             if (dDelay != null && !dDelay.isEmpty()) {
 309                 dDelay = dDelay.trim();
 310                 try {
 311                     dmaapDelay = Long.parseLong(dDelay);
 312                 } catch (NumberFormatException e) {
 313                     LOGGER.error("DMAAP_DELAY not a long format number" + e);
 314                 }
 315             }
 316             LOGGER.info("DMAAP BusPublisher is created.");
 317
 318         } else {
 319             LOGGER.info("Notification Type being used is UEB... creating instance of PublisherBuilder.");
 320             // Setting up the Publisher for UEB
 321             uebList = config.getProperty("NOTIFICATION_SERVERS");
 322             pubTopic = config.getProperty("NOTIFICATION_TOPIC");
 323             String apiKey = config.getProperty("UEB_API_KEY");
 324             String apiSecret = config.getProperty("UEB_API_SECRET");
 325             if (uebList == null || pubTopic == null) {
 326                 LOGGER.error(
 327                         XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
 328                 throw new PolicyException(
 329                         XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
 330             }
 331             uebList = uebList.trim();
 332             pubTopic = pubTopic.trim();
 333             pubBuilder = new CambriaClientBuilders.PublisherBuilder();
 334             pubBuilder.usingHosts(uebList).onTopic(pubTopic);
 335             if (apiKey != null && !apiKey.isEmpty() && apiSecret != null && !apiSecret.isEmpty()) {
 336                 apiKey = apiKey.trim();
 337                 apiSecret = apiSecret.trim();
 338                 pubBuilder.authenticatedBy(apiKey, apiSecret);
 339             }
 340             String uDelay = config.getProperty("NOTIFICATION_DELAY");
 341             if (uDelay != null && !uDelay.isEmpty()) {
 342                 uDelay = uDelay.trim();
 343                 try {
 344                     uebDelay = Long.parseLong(uDelay);
 345                 } catch (NumberFormatException e) {
 346                     LOGGER.error("UEB_DELAY not a long format number" + e);
 347                 }
 348             }
 349             LOGGER.info("UEB PublisherBuilder is created.");
 350
 351         }
 352
 353     }
 354
 355     private static void setBackupMonitor(BackUpMonitor instance) {
 356         bm = instance;
 357     }
 358
 359     private static void setIntegrityMonitor(IntegrityMonitor instance) {
 360         im = instance;
 361     }
 362
 363     /**
 364      * Will Initialize the variables required for BRMSPush.
 365      */
 366     public void initiate(boolean flag) {
 367         resetModifiedGroups();
 368         controllers = new ArrayList<>();
 369         try {
 370             bm.updateNotification();
 371         } catch (Exception e) {
 372             LOGGER.error("Error while updating Notification: " + e.getMessage(), e);
 373         }
 374         if (flag)
 375             syncGroupInfo();
 376     }
 377
 378     private static void resetModifiedGroups() {
 379         modifiedGroups = new HashMap<>();
 380     }
 381
 382     /**
 383      * Will Add rules to projects. Creates necessary folders if required.
 384      */
 385     public void addRule(String name, String rule, Map<String, String> responseAttributes) {
 386         // 1 check the response Attributes and determine if this belongs to any projects.
 387         // 2 if not create folder
 388         // 3 create pom.
 389         // 4 copy the rule.
 390         // 5 store the groups that have been updated.
 391         String kSessionName = null;
 392         String selectedName = null;
 393         if (!responseAttributes.isEmpty()) {
 394             // Pick selected Value
 395             String userControllerName = null;
 396             ArrayList<PEDependency> userDependencies = new ArrayList<>();
 397             for (Map.Entry<String, String> entry: responseAttributes.entrySet()) {
 398                 String key = entry.getKey();
 399                 String value = entry.getValue();
 400                 if (key.equals(policyKeyID)) {
 401                     selectedName = value;
 402                 }
 403                 // kmodule configurations
 404                 else if ("kSessionName".equals(key)) {
 405                     kSessionName = value;
 406                 }
 407                 // Check User Specific values.
 408                 if ("$controller:".equals(key)) {
 409                     try {
 410                         PEDependency dependency = PolicyUtils.jsonStringToObject(value,
 411                                 PEDependency.class);
 412                         userControllerName = key.replaceFirst("$controller:", "");
 413                         addToGroup(userControllerName, dependency);
 414                     } catch (Exception e) {
 415                         LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while resolving Controller: " + e);
 416                     }
 417
 418                 } else if ("$dependency$".equals(key) && value.startsWith("[") && value.endsWith("]")) {
 419                     value = value.substring(1, value.length() - 1).trim();
 420                     List<String> dependencyStrings = Arrays.asList(value.split("},{"));
 421                     for (String dependencyString : dependencyStrings) {
 422                         try {
 423                             userDependencies
 424                                     .add(PolicyUtils.jsonStringToObject(dependencyString, PEDependency.class));
 425                         } catch (Exception e) {
 426                             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW
 427                                     + "Error while resolving Dependencies: " + e);
 428                         }
 429                     }
 430                 }
 431             }
 432             if (userControllerName != null) {
 433                 // Adding custom dependencies here.
 434                 ArrayList<Object> values = groupMap.get(userControllerName);
 435                 values.add(userDependencies);
 436                 groupMap.put(userControllerName, values);
 437                 selectedName = userControllerName;
 438             }
 439         }
 440         // If no Match then pick Default.
 441         if (selectedName == null) {
 442             selectedName = defaultName;
 443         }
 444         if (groupMap.containsKey(selectedName)) {
 445             // If the key is not got as parameters set by the user, setting the default value for kSessionName as
 446             // closedLoop
 447             if (kSessionName == null) {
 448                 if (selectedName == defaultName) {
 449                     kSessionName = "closedloop";
 450                 } else {
 451                     kSessionName = "closedloop-" + selectedName;
 452                 }
 453             }
 454             // create directories if missing.
 455             manageProject(selectedName, kSessionName, name, rule);
 456             addModifiedGroup(selectedName, "update"); // Will check for Create Later after generating the Pom.
 457         }
 458     }
 459
 460     private void syncGroupInfo() {
 461         // Sync DB to JMemory.
 462         EntityTransaction et = em.getTransaction();
 463         et.begin();
 464         Query query = em.createQuery("select b from BRMSGroupInfo AS b");
 465         List<?> bList = query.getResultList();
 466         if (bList.size() != groupMap.size()) {
 467             for (Object value : bList) {
 468                 BRMSGroupInfo brmsGroupInfo = (BRMSGroupInfo) value;
 469                 PEDependency dependency = new PEDependency();
 470                 dependency.setArtifactId(brmsGroupInfo.getArtifactId());
 471                 dependency.setGroupId(brmsGroupInfo.getGroupId());
 472                 dependency.setVersion(brmsGroupInfo.getVersion());
 473                 ArrayList<Object> values = new ArrayList<>();
 474                 values.add(dependency);
 475                 groupMap.put(brmsGroupInfo.getControllerName(), values);
 476             }
 477         }
 478         query = em.createQuery("select g from BRMSPolicyInfo AS g");
 479         bList = query.getResultList();
 480         if (bList.size() != policyMap.size()) {
 481             for (Object value : bList) {
 482                 BRMSPolicyInfo brmsPolicyInfo = (BRMSPolicyInfo) value;
 483                 policyMap.put(brmsPolicyInfo.getPolicyName(), brmsPolicyInfo.getControllerName().getControllerName());
 484             }
 485         }
 486         et.commit();
 487         LOGGER.info("Updated Local Memory values with values from database.");
 488     }
 489
 490     private void manageProject(String selectedName, String kSessionName, String name, String rule) {
 491         // Check if the Project is in Sync. If not get the latest Version.
 492         syncProject(selectedName);
 493         createProject(PROJECTSLOCATION + File.separator + getArtifactID(selectedName) + File.separator + "src"
 494                 + File.separator + "main" + File.separator + RESOURCES, kSessionName);
 495         copyDataToFile(PROJECTSLOCATION + File.separator + getArtifactID(selectedName) + File.separator + "src"
 496                 + File.separator + "main" + File.separator + RESOURCES + File.separator + RULES + File.separator
 497                 + name + ".drl", rule);
 498         addToPolicy(name, selectedName);
 499     }
 500
 501     /*
 502      * Add Policy to JMemory and DataBase.
 503      */
 504     private void addToPolicy(String policyName, String controllerName) {
 505         policyMap.put(policyName, controllerName);
 506         EntityTransaction et = em.getTransaction();
 507         et.begin();
 508         Query query = em.createQuery("select b from BRMSPolicyInfo as b where b.policyName = :pn");
 509         query.setParameter("pn", policyName);
 510         List<?> pList = query.getResultList();
 511         boolean create = false;
 512         BRMSPolicyInfo brmsPolicyInfo = new BRMSPolicyInfo();
 513         if (!pList.isEmpty()) {
 514             // Already exists.
 515             brmsPolicyInfo = (BRMSPolicyInfo) pList.get(0);
 516             if (!brmsPolicyInfo.getControllerName().getControllerName().equals(controllerName)) {
 517                 create = true;
 518             }
 519         } else {
 520             create = true;
 521         }
 522         if (create) {
 523             query = em.createQuery("select b from BRMSGroupInfo as b where b.controllerName = :cn");
 524             query.setParameter("cn", controllerName);
 525             List<?> bList = query.getResultList();
 526             BRMSGroupInfo brmsGroupInfo = new BRMSGroupInfo();
 527             if (!bList.isEmpty()) {
 528                 brmsGroupInfo = (BRMSGroupInfo) bList.get(0);
 529             }
 530             brmsPolicyInfo.setPolicyName(policyName);
 531             brmsPolicyInfo.setControllerName(brmsGroupInfo);
 532             em.persist(brmsPolicyInfo);
 533             em.flush();
 534         }
 535         et.commit();
 536     }
 537
 538     private void syncProject(String selectedName) {
 539         boolean projectExists = checkProject(selectedName);
 540         if (projectExists) {
 541             String version;
 542             version = getVersion(selectedName);
 543             if (version == null) {
 544                 LOGGER.error("Error getting local version for the given Controller Name:" + selectedName
 545                         + " going with Default value");
 546                 version = VERSION_0_1_0;
 547             }
 548             String nextVersion = incrementVersion(version);
 549             boolean outOfSync = checkRemoteSync(selectedName, nextVersion);
 550             if (!outOfSync) {
 551                 return;
 552             }
 553         }
 554         // We are out of Sync or Project is not Present.
 555         downloadProject(selectedName);
 556     }
 557
 558     private void downloadProject(String selectedName) {
 559         NexusArtifact artifact = getLatestArtifactFromNexus(selectedName);
 560         if (artifact == null)
 561             return;
 562         String dirName = getDirectoryName(selectedName);
 563         URL website;
 564         String fileName = "rule.jar";
 565         try {
 566             website = new URL(artifact.getResourceURI());
 567             ReadableByteChannel rbc = Channels.newChannel(website.openStream());
 568             FileOutputStream fos = new FileOutputStream(fileName);
 569             fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
 570             fos.close();
 571             extractJar(fileName, dirName);
 572             new File(fileName).delete();
 573         } catch (IOException e) {
 574             LOGGER.error("Error while downloading the project to File System. " + e.getMessage(), e);
 575         }
 576     }
 577
 578     private void extractJar(String jarFileName, String artifactId) throws IOException {
 579         JarFile jar = new JarFile(jarFileName);
 580         Enumeration<?> enumEntries = jar.entries();
 581         while (enumEntries.hasMoreElements()) {
 582             JarEntry file = (JarEntry) enumEntries.nextElement();
 583             File f = null;
 584             String fileName = file.getName().substring(file.getName().lastIndexOf("/") + 1);
 585             if (file.getName().endsWith(".drl")) {
 586                 String path = PROJECTSLOCATION + File.separator + artifactId + File.separator + "src" + File.separator
 587                         + "main" + File.separator + RESOURCES + File.separator + RULES;
 588                 new File(path).mkdirs();
 589                 if (syncFlag && policyMap.containsKey(fileName.replace(".drl", ""))) {
 590                     f = new File(path + File.separator + fileName);
 591                 } else {
 592                     f = new File(path + File.separator + fileName);
 593                 }
 594             } else if (file.getName().endsWith(POM_XML_FILE)) {
 595                 String path = PROJECTSLOCATION + File.separator + artifactId;
 596                 new File(path).mkdirs();
 597                 f = new File(path + File.separator + fileName);
 598             } else if (file.getName().endsWith(KMODULE_XML_FILE)) {
 599                 String path = PROJECTSLOCATION + File.separator + artifactId + File.separator + "src" + File.separator
 600                         + "main" + File.separator + RESOURCES + File.separator + META_INF;
 601                 new File(path).mkdirs();
 602                 f = new File(path + File.separator + fileName);
 603             }
 604             if (f != null) {
 605                 InputStream is = jar.getInputStream(file);
 606                 FileOutputStream fos = new FileOutputStream(f);
 607                 while (is.available() > 0) {
 608                     fos.write(is.read());
 609                 }
 610                 fos.close();
 611                 is.close();
 612                 LOGGER.info(fileName + " Created..");
 613             }
 614         }
 615         jar.close();
 616     }
 617
 618     private NexusArtifact getLatestArtifactFromNexus(String selectedName) {
 619         List<NexusArtifact> artifacts = getArtifactFromNexus(selectedName, null);
 620         int bigNum = 0;
 621         int smallNum = 0;
 622         NexusArtifact result = null;
 623         for (NexusArtifact artifact : artifacts) {
 624             int majorVal = Integer.parseInt(artifact.getVersion().substring(0, artifact.getVersion().indexOf(".")));
 625             int minorVal = Integer.parseInt(artifact.getVersion().substring(artifact.getVersion().indexOf(".") + 1,
 626                     artifact.getVersion().lastIndexOf(".")));
 627             if (majorVal > bigNum) {
 628                 bigNum = majorVal;
 629                 smallNum = minorVal;
 630             }
 631             if ((bigNum == majorVal) && (minorVal > smallNum)) {
 632                 smallNum = minorVal;
 633             }
 634             if (bigNum == majorVal && minorVal == smallNum) {
 635                 result = artifact;
 636             }
 637         }
 638         return additionalNexusLatestCheck(selectedName, result);
 639     }
 640
 641     // Additional Check due to Limitations from Nexus API to check if the artifact is the latest.
 642     private NexusArtifact additionalNexusLatestCheck(String selectedName, NexusArtifact result) {
 643         if(result==null){
 644             return result;
 645         }
 646         String nextVersion = incrementVersion(result.getVersion());
 647         List<NexusArtifact> artifact = getArtifactFromNexus(selectedName, nextVersion);
 648         return artifact.isEmpty() ? result : additionalNexusLatestCheck(selectedName, artifact.get(0));
 649     }
 650
 651     private boolean checkRemoteSync(String selectedName, String version) {
 652         List<NexusArtifact> artifacts = getArtifactFromNexus(selectedName, version);
 653         return artifacts.isEmpty() ? false : true;
 654     }
 655
 656     private List<NexusArtifact> getArtifactFromNexus(String selectedName, String version) {
 657         final NexusClient client = new NexusRestClient();
 658         int i = 0;
 659         boolean flag = false;
 660         while (i < repURLs.size()) {
 661             try {
 662                 String repURL = repURLs.get(0);
 663                 client.connect(repURL.substring(0, repURL.indexOf(repURL.split(":[0-9]+\\/nexus")[1])), repUserName,
 664                         repPassword);
 665                 final NexusArtifact template = new NexusArtifact();
 666                 template.setGroupId(getGroupID(selectedName));
 667                 template.setArtifactId(getArtifactID(selectedName));
 668                 if (version != null) {
 669                     template.setVersion(version);
 670                 }
 671                 List<NexusArtifact> resultList = client.searchByGAV(template);
 672                 if (resultList != null) {
 673                     flag = true;
 674                     return resultList;
 675                 }
 676             } catch (NexusClientException | NexusConnectionException | NullPointerException e) {
 677                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "Connection to remote Nexus has failed. "
 678                         + e.getMessage(), e);
 679             } finally {
 680                 try {
 681                     client.disconnect();
 682                 } catch (NexusClientException | NexusConnectionException e) {
 683                     LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "failed to disconnect Connection from Nexus."
 684                             + e.getMessage(), e);
 685                 }
 686                 if (!flag) {
 687                     Collections.rotate(repURLs, -1);
 688                     i++;
 689                 }
 690             }
 691         }
 692         return new ArrayList<>();
 693     }
 694
 695     private void setVersion(String selectedName) {
 696         String newVersion = VERSION_0_1_0;
 697         createFlag = false;
 698         NexusArtifact artifact = getLatestArtifactFromNexus(selectedName);
 699         if (artifact != null) {
 700             newVersion = incrementVersion(artifact.getVersion());
 701         }
 702         if (VERSION_0_1_0.equals(newVersion)) {
 703             createFlag = true;
 704         }
 705         setVersion(newVersion, selectedName);
 706         LOGGER.info("Controller: " + selectedName + "is on version: " + newVersion);
 707     }
 708
 709     private String incrementVersion(String version) {
 710         int majorVal = Integer.parseInt(version.substring(0, version.indexOf(".")));
 711         int minorVal = Integer.parseInt(version.substring(version.indexOf(".") + 1, version.lastIndexOf(".")));
 712         if (minorVal >= 9) {
 713             majorVal += 1;
 714             minorVal = 0;
 715         } else {
 716             minorVal += 1;
 717         }
 718         return majorVal + "." + minorVal + version.substring(version.lastIndexOf("."));
 719     }
 720
 721     private boolean checkProject(String selectedName) {
 722         return new File(PROJECTSLOCATION + File.separator + getDirectoryName(selectedName)).exists();
 723     }
 724
 725     private String getDirectoryName(String selectedName) {
 726         return getArtifactID(selectedName);
 727     }
 728
 729     /**
 730      * Will Push policies to the PolicyRepo.
 731      *
 732      * @param notificationType
 733      *            <String> type of notification Type.
 734      * @throws PolicyException
 735      */
 736     public void pushRules() throws PolicyException {
 737         // Check how many groups have been updated.
 738         // Invoke their Maven process.
 739         try {
 740             im.startTransaction();
 741         } catch (Exception e) {
 742             LOGGER.error("Error while starting Transaction " + e);
 743         }
 744         if (!modifiedGroups.isEmpty()) {
 745             Boolean flag = false;
 746             for (Map.Entry<String, String> entry : modifiedGroups.entrySet()) {
 747                 InvocationResult result = null;
 748                 String group = entry.getKey();
 749                 try {
 750                     InvocationRequest request = new DefaultInvocationRequest();
 751                     setVersion(group);
 752                     createPom(group);
 753                     request.setPomFile(new File(
 754                             PROJECTSLOCATION + File.separator + getArtifactID(group) + File.separator + POM_XML_FILE));
 755                     request.setGoals(Arrays.asList(GOALS));
 756                     Invoker invoker = new DefaultInvoker();
 757                     result = invoker.execute(request);
 758                     if (result.getExecutionException() != null) {
 759                         LOGGER.error(result.getExecutionException());
 760                     } else if (result.getExitCode() != 0) {
 761                         LOGGER.error("Maven Invocation failure..!");
 762                     }
 763                 } catch (Exception e) {
 764                     LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Maven Invocation issue for "
 765                             + getArtifactID(group) + e.getMessage(), e);
 766                 }
 767                 if (result != null && result.getExitCode() == 0) {
 768                     LOGGER.info("Build Completed..!");
 769                     if (createFlag) {
 770                         addNotification(group, "create");
 771                     } else {
 772                         addNotification(group, entry.getValue());
 773                     }
 774                     flag = true;
 775                 } else {
 776                     throw new PolicyException(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Maven Invocation failure!");
 777                 }
 778             }
 779             if (flag) {
 780                 sendNotification(controllers);
 781             }
 782         }
 783         if (im != null) {
 784             im.endTransaction();
 785         }
 786     }
 787
 788     /**
 789      * Removes a Rule from Rule Projects.
 790      */
 791     public void removeRule(String name) {
 792         String controllerName = getGroupName(name);
 793         if (controllerName == null) {
 794             LOGGER.info("Error finding the controllerName for the given Policy: " + name);
 795             return;
 796         }
 797         syncProject(controllerName);
 798         getNameAndSetRemove(controllerName, name);
 799     }
 800
 801     private String getGroupName(String name) {
 802         if (policyMap.containsKey(name)) {
 803             return policyMap.get(name);
 804         } else {
 805             syncGroupInfo();
 806             return policyMap.containsKey(name) ? policyMap.get(name) : null;
 807         }
 808     }
 809
 810     private void addModifiedGroup(String controllerName, String operation) {
 811         if (controllerName != null) {
 812             modifiedGroups.put(controllerName, operation);
 813         }
 814     }
 815
 816     private void addNotification(String controllerName, String operation) {
 817         ControllerPOJO controllerPOJO = new ControllerPOJO();
 818         controllerPOJO.setName(controllerName);
 819         controllerPOJO.setOperation(operation);
 820         HashMap<String, String> drools = new HashMap<>();
 821         drools.put("groupId", getGroupID(controllerName));
 822         drools.put("artifactId", getArtifactID(controllerName));
 823         drools.put("version", getVersion(controllerName));
 824         controllerPOJO.setDrools(drools);
 825         controllers.add(controllerPOJO);
 826         try {
 827             LOGGER.debug("Notification added: " + PolicyUtils.objectToJsonString(controllerPOJO));
 828         } catch (JsonProcessingException e) {
 829             LOGGER.error(MessageCodes.ERROR_SCHEMA_INVALID + "Json Processing Error " + e);
 830         }
 831     }
 832
 833     private void removedRuleModifiedGroup(String controllerName) {
 834         // This will be sending Notification to PDPD directly to Lock
 835         ControllerPOJO controllerPOJO = new ControllerPOJO();
 836         controllerPOJO.setName(controllerName);
 837         controllerPOJO.setOperation("lock");
 838         List<ControllerPOJO> controllerPojos = new ArrayList<>();
 839         controllerPojos.add(controllerPOJO);
 840         sendNotification(controllerPojos);
 841     }
 842
 843     private void sendNotification(List<ControllerPOJO> controllers) {
 844         NotificationPOJO notification = new NotificationPOJO();
 845         String requestId = UUID.randomUUID().toString();
 846         LOGGER.info("Generating notification RequestID : " + requestId);
 847         notification.setRequestID(requestId);
 848         notification.setEntity("controller");
 849         notification.setControllers(controllers);
 850         try {
 851             String notificationJson = PolicyUtils.objectToJsonString(notification);
 852             LOGGER.info("Sending Notification :\n" + notificationJson);
 853             sendMessage(notificationJson);
 854         } catch (Exception e) {
 855             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while sending notification to PDP-D "
 856                     + e.getMessage(), e);
 857         }
 858     }
 859
 860     private void sendMessage(String message) throws IOException, GeneralSecurityException, InterruptedException {
 861
 862         if ("dmaap".equalsIgnoreCase(notificationType)) {
 863             // Sending Message through DMaaP Message Router
 864             LOGGER.debug("DMAAP Publishing Message");
 865
 866             publisher.send("MyPartitionKey", message);
 867
 868             LOGGER.debug("Message Published on DMaaP :" + dmaapList.get(0) + "for Topic: " + pubTopic);
 869
 870             Thread.sleep(dmaapDelay);
 871             publisher.close();
 872         } else {
 873             // Sending Message through UEB interface.
 874             LOGGER.debug("UEB Publishing Message");
 875
 876             CambriaBatchingPublisher pub = pubBuilder.build();
 877             pub.send("MyPartitionKey", message);
 878
 879             final List<?> stuck = pub.close(uebDelay, TimeUnit.SECONDS);
 880             if (!stuck.isEmpty()) {
 881                 LOGGER.error(stuck.size() + " messages unsent");
 882             } else {
 883                 LOGGER.debug("Clean exit; Message Published on UEB : " + uebList + "for Topic: " + pubTopic);
 884             }
 885         }
 886
 887     }
 888
 889     private void createPom(String name) {
 890         Model model = new Model();
 891         model.setModelVersion("4.0.0");
 892         model.setGroupId(getGroupID(name));
 893         model.setArtifactId(getArtifactID(name));
 894         model.setVersion(getVersion(name));
 895         model.setName(name);
 896         DistributionManagement distributionManagement = new DistributionManagement();
 897         DeploymentRepository repository = new DeploymentRepository();
 898         repository.setId(repID);
 899         repository.setName(repName);
 900         repository.setUrl(repURLs.get(0));
 901         distributionManagement.setRepository(repository);
 902         model.setDistributionManagement(distributionManagement);
 903         // Dependency Management goes here.
 904         List<Dependency> dependencyList = new ArrayList<>();
 905         if (groupMap.get(name).size() > 1) {
 906             @SuppressWarnings("unchecked")
 907             ArrayList<PEDependency> dependencies = (ArrayList<PEDependency>) groupMap.get(name).get(1);
 908             for (PEDependency dependency : dependencies) {
 909                 dependencyList.add(dependency.getDependency());
 910             }
 911         } else {
 912             // Add Default dependencies.
 913             dependencyList = getDependencies(name);
 914         }
 915         model.setDependencies(dependencyList);
 916         Writer writer = null;
 917         try {
 918             writer = WriterFactory.newXmlWriter(
 919                     new File(PROJECTSLOCATION + File.separator + getArtifactID(name) + File.separator + POM_XML_FILE));
 920             MavenXpp3Writer pomWriter = new MavenXpp3Writer();
 921             pomWriter.write(writer, model);
 922         } catch (Exception e) {
 923             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while creating POM for " + getArtifactID(name)
 924                     + e.getMessage(), e);
 925         } finally {
 926             IOUtil.close(writer);
 927         }
 928     }
 929
 930     private List<Dependency> getDependencies(String controllerName) {
 931         // Read the Dependency Information from property file.
 932         Path file = Paths.get(DEPENDENCY_FILE);
 933         if (!Files.notExists(file)) {
 934             try {
 935                 String dependencyJSON = new String(Files.readAllBytes(file), StandardCharsets.UTF_8);
 936                 DependencyInfo dependencyInfo = PolicyUtils.jsonStringToObject(dependencyJSON, DependencyInfo.class);
 937                 String controller = "default";
 938                 if (dependencyInfo.getDependencies().containsKey(controllerName)) {
 939                     controller = controllerName;
 940                 }
 941                 List<Dependency> dependencyList = new ArrayList<>();
 942                 for (PEDependency dependency : dependencyInfo.getDependencies().get(controller)) {
 943                     dependencyList.add(dependency.getDependency());
 944                 }
 945                 return dependencyList;
 946             } catch (IOException | NullPointerException e) {
 947                 LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW
 948                         + "Error while getting dependecy Information for controller: " + controllerName
 949                         + e.getMessage(), e);
 950             }
 951         }
 952         return defaultDependencies(controllerName);
 953     }
 954
 955     // Default Dependency Section. Can be changed as required.
 956     public List<Dependency> defaultDependencies(String controllerName) {
 957
 958         List<Dependency> dependencyList = new ArrayList<>();
 959         String version = StringEscapeUtils.escapeJava(brmsdependencyversion);
 960
 961         Dependency demoDependency = new Dependency();
 962         demoDependency.setGroupId(DROOLS_APPS_TEMPLATE_GROUP);
 963         demoDependency.setArtifactId("template.demo");
 964         demoDependency.setVersion(version);
 965         dependencyList.add(demoDependency);
 966
 967         Dependency controlloopDependency = new Dependency();
 968         controlloopDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
 969         controlloopDependency.setArtifactId("events");
 970         controlloopDependency.setVersion(version);
 971         dependencyList.add(controlloopDependency);
 972
 973         Dependency restDependency = new Dependency();
 974         restDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
 975         restDependency.setArtifactId("controlloop.common.model-impl.rest");
 976         restDependency.setVersion(version);
 977         dependencyList.add(restDependency);
 978
 979         Dependency appcDependency = new Dependency();
 980         appcDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
 981         appcDependency.setArtifactId("controlloop.common.model-impl.appc");
 982         appcDependency.setVersion(version);
 983         dependencyList.add(appcDependency);
 984
 985         Dependency aaiDependency = new Dependency();
 986         aaiDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
 987         aaiDependency.setArtifactId("controlloop.common.model-impl.aai");
 988         aaiDependency.setVersion(version);
 989         dependencyList.add(aaiDependency);
 990
 991         Dependency msoDependency = new Dependency();
 992         msoDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
 993         msoDependency.setArtifactId("controlloop.common.model-impl.so");
 994         msoDependency.setVersion(version);
 995         dependencyList.add(msoDependency);
 996
 997         Dependency trafficgeneratorDependency = new Dependency();
 998         trafficgeneratorDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
 999         trafficgeneratorDependency.setArtifactId("controlloop.common.model-impl.trafficgenerator");
1000         trafficgeneratorDependency.setVersion(version);
1001         dependencyList.add(trafficgeneratorDependency);
1002         return dependencyList;
1003     }
1004
1005     private void createProject(String path, String ksessionName) {
1006         new File(path + File.separator + RULES).mkdirs();
1007         new File(path + File.separator + META_INF).mkdirs();
1008         if (!Files.exists(Paths.get(path + File.separator + META_INF + File.separator + KMODULE_XML_FILE))) {
1009             // Hard coding XML for PDP Drools to accept our Rules.
1010             String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + "\n"
1011                     + "<kmodule xmlns=\"http://jboss.org/kie/6.0.0/kmodule\">" + "\n"
1012                     + "<kbase name=\"rules\" packages=\"rules\">" + "\n" + "<ksession name=\"" + ksessionName + "\"/>"
1013                     + "\n" + "</kbase></kmodule>";
1014             copyDataToFile(path + File.separator + META_INF + File.separator + KMODULE_XML_FILE, xml);
1015         }
1016     }
1017
1018     private void copyDataToFile(String file, String rule) {
1019         try {
1020             FileUtils.writeStringToFile(new File(file), rule);
1021         } catch (Exception e) {
1022             LOGGER.error(
1023                     XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while creating Rule for " + file + e.getMessage(),
1024                     e);
1025         }
1026     }
1027
1028     private void readGroups(Properties config) throws PolicyException {
1029         String[] groupNames;
1030         String groupNamesError = "groupNames property is missing or empty from the property file ";
1031                 if (!config.containsKey(GROUP_NAMES) || config.getProperty(GROUP_NAMES)==null){
1032             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
1033                     + groupNamesError);
1034         }
1035         if (config.getProperty(GROUP_NAMES).contains(",")) {
1036             groupNames = config.getProperty(GROUP_NAMES).replaceAll(" ", "").split(",");
1037         } else {
1038             groupNames = new String[] { config.getProperty(GROUP_NAMES).replaceAll(" ", "") };
1039         }
1040         if (groupNames == null || groupNames.length == 0) {
1041             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
1042                     + groupNamesError);
1043             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
1044                     + groupNamesError);
1045         }
1046         groupMap = new HashMap<>();
1047         for (int counter = 0; counter < groupNames.length; counter++) {
1048             String name = groupNames[counter];
1049             String groupID = config.getProperty(name + ".groupID");
1050             if (groupID == null) {
1051                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1052                         + ".groupID property is missing from the property file ");
1053                 throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1054                         + ".groupID property is missing from the property file ");
1055             }
1056             String artifactID = config.getProperty(name + ".artifactID");
1057             if (artifactID == null) {
1058                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1059                         + ".artifactID property is missing from the property file ");
1060                 throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1061                         + ".artifactID property is missing from the property file ");
1062             }
1063             PEDependency dependency = new PEDependency();
1064             dependency.setArtifactId(artifactID);
1065             dependency.setGroupId(groupID);
1066             // Add to list if we got all
1067             addToGroup(name, dependency);
1068         }
1069     }
1070
1071     private void addToGroup(String name, PEDependency dependency) {
1072         ArrayList<Object> values = new ArrayList<>();
1073         values.add(dependency);
1074         groupMap.put(name, values);
1075         EntityTransaction et = em.getTransaction();
1076         et.begin();
1077         Query query = em.createQuery("select b from BRMSGroupInfo as b where b.controllerName = :cn");
1078         query.setParameter("cn", name);
1079         List<?> groupList = query.getResultList();
1080         BRMSGroupInfo brmsGroupInfo = null;
1081         if (!groupList.isEmpty()) {
1082             LOGGER.info("Controller name already Existing in DB. Will be updating the DB Values" + name);
1083             brmsGroupInfo = (BRMSGroupInfo) groupList.get(0);
1084         }
1085         if (brmsGroupInfo == null) {
1086             brmsGroupInfo = new BRMSGroupInfo();
1087         }
1088         brmsGroupInfo.setControllerName(name);
1089         brmsGroupInfo.setGroupId(dependency.getGroupId());
1090         brmsGroupInfo.setArtifactId(dependency.getArtifactId());
1091         brmsGroupInfo.setVersion(dependency.getVersion());
1092         em.persist(brmsGroupInfo);
1093         em.flush();
1094         et.commit();
1095     }
1096
1097     private String getArtifactID(String name) {
1098         return ((PEDependency) groupMap.get(name).get(0)).getArtifactId();
1099     }
1100
1101     private String getGroupID(String name) {
1102         return ((PEDependency) groupMap.get(name).get(0)).getGroupId();
1103     }
1104
1105     private String getVersion(String name) {
1106         return ((PEDependency) groupMap.get(name).get(0)).getVersion();
1107     }
1108
1109     private void getNameAndSetRemove(String controllerName, String policyName) {
1110         String artifactName = getArtifactID(controllerName);
1111         String ruleFolder = PROJECTSLOCATION + File.separator + artifactName + File.separator + "src" + File.separator
1112                 + "main" + File.separator + RESOURCES + File.separator + RULES;
1113         File file = new File(ruleFolder + File.separator + policyName + ".drl");
1114         if (file.delete()) {
1115             LOGGER.info("Deleted File.. " + file.getAbsolutePath());
1116             removePolicyFromGroup(policyName, controllerName);
1117         }
1118         if (new File(ruleFolder).listFiles().length == 0) {
1119             removedRuleModifiedGroup(controllerName);
1120         } else {
1121             // This is an update in terms of PDPD.
1122             addModifiedGroup(controllerName, "update");
1123         }
1124     }
1125
1126     // Removes Policy from Memory and Database.
1127     private void removePolicyFromGroup(String policyName, String controllerName) {
1128         policyMap.remove(policyName);
1129         EntityTransaction et = em.getTransaction();
1130         et.begin();
1131         Query query = em.createQuery("select b from BRMSPolicyInfo as b where b.policyName = :pn");
1132         query.setParameter("pn", policyName);
1133         List<?> pList = query.getResultList();
1134         BRMSPolicyInfo brmsPolicyInfo;
1135         if (!pList.isEmpty()) {
1136             // Already exists.
1137             brmsPolicyInfo = (BRMSPolicyInfo) pList.get(0);
1138             if (brmsPolicyInfo.getControllerName().getControllerName().equals(controllerName)) {
1139                 em.remove(brmsPolicyInfo);
1140                 em.flush();
1141             }
1142         }
1143         et.commit();
1144     }
1145
1146     private void setVersion(String newVersion, String controllerName) {
1147         PEDependency userController = (PEDependency) groupMap.get(controllerName).get(0);
1148         userController.setVersion(newVersion);
1149         groupMap.get(controllerName).set(0, userController);
1150     }
1151
1152     // Return BackUpMonitor
1153     public static BackUpMonitor getBackUpMonitor() {
1154         return bm;
1155     }
1156
1157     public void rotateURLs() {
1158         if (repURLs != null) {
1159             Collections.rotate(repURLs, -1);
1160         }
1161     }
1162
1163     public int urlListSize() {
1164         if (repURLs != null) {
1165             return repURLs.size();
1166         } else
1167             return 0;
1168     }
1169 }