BRMSGateway/src/main/java/org/onap/policy/brms/api/BrmsPush.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP Policy Engine
   4  * ================================================================================
   5  * Copyright (C) 2017-2018 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.brms.api;
  22
  23 import com.att.nsa.cambria.client.CambriaBatchingPublisher;
  24 import com.att.nsa.cambria.client.CambriaClientBuilders;
  25 import com.att.nsa.cambria.client.CambriaClientBuilders.PublisherBuilder;
  26 import com.fasterxml.jackson.core.JsonProcessingException;
  27
  28 import java.io.File;
  29 import java.io.FileInputStream;
  30 import java.io.FileOutputStream;
  31 import java.io.IOException;
  32 import java.io.InputStream;
  33 import java.io.Writer;
  34 import java.net.URL;
  35 import java.nio.channels.Channels;
  36 import java.nio.channels.ReadableByteChannel;
  37 import java.nio.charset.StandardCharsets;
  38 import java.nio.file.Files;
  39 import java.nio.file.Path;
  40 import java.nio.file.Paths;
  41 import java.security.GeneralSecurityException;
  42 import java.util.ArrayList;
  43 import java.util.Arrays;
  44 import java.util.Collections;
  45 import java.util.Enumeration;
  46 import java.util.HashMap;
  47 import java.util.List;
  48 import java.util.Map;
  49 import java.util.Properties;
  50 import java.util.UUID;
  51 import java.util.concurrent.TimeUnit;
  52 import java.util.jar.JarEntry;
  53 import java.util.jar.JarFile;
  54 import java.util.regex.Pattern;
  55
  56 import javax.persistence.EntityManager;
  57 import javax.persistence.EntityManagerFactory;
  58 import javax.persistence.EntityTransaction;
  59 import javax.persistence.Persistence;
  60 import javax.persistence.TypedQuery;
  61 import javax.ws.rs.ProcessingException;
  62
  63 import org.apache.commons.io.FileUtils;
  64 import org.apache.commons.lang.StringEscapeUtils;
  65 import org.apache.maven.model.Dependency;
  66 import org.apache.maven.model.DeploymentRepository;
  67 import org.apache.maven.model.DistributionManagement;
  68 import org.apache.maven.model.Model;
  69 import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
  70 import org.apache.maven.shared.invoker.DefaultInvocationRequest;
  71 import org.apache.maven.shared.invoker.DefaultInvoker;
  72 import org.apache.maven.shared.invoker.InvocationRequest;
  73 import org.apache.maven.shared.invoker.InvocationResult;
  74 import org.apache.maven.shared.invoker.Invoker;
  75 import org.codehaus.plexus.util.IOUtil;
  76
  77 import org.codehaus.plexus.util.WriterFactory;
  78 import org.eclipse.persistence.config.PersistenceUnitProperties;
  79 import org.onap.policy.api.PEDependency;
  80 import org.onap.policy.api.PolicyException;
  81 import org.onap.policy.brms.api.nexus.NexusRestSearchParameters;
  82 import org.onap.policy.brms.api.nexus.NexusRestWrapper;
  83 import org.onap.policy.brms.api.nexus.NexusRestWrapperException;
  84 import org.onap.policy.brms.api.nexus.pojo.NexusArtifact;
  85 import org.onap.policy.brms.entity.BrmsGroupInfo;
  86 import org.onap.policy.brms.entity.BrmsPolicyInfo;
  87 import org.onap.policy.brms.entity.DependencyInfo;
  88 import org.onap.policy.common.im.IntegrityMonitor;
  89 import org.onap.policy.common.logging.eelf.MessageCodes;
  90 import org.onap.policy.common.logging.eelf.PolicyLogger;
  91 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  92 import org.onap.policy.common.logging.flexlogger.Logger;
  93 import org.onap.policy.utils.BackUpHandler;
  94 import org.onap.policy.utils.BackUpMonitor;
  95 import org.onap.policy.utils.BusPublisher;
  96 import org.onap.policy.utils.PolicyUtils;
  97 import org.onap.policy.xacml.api.XACMLErrorConstants;
  98
  99 /**
 100  * BRMSPush: Application responsible to push policies to the BRMS PDP Policy Repository (PR).
 101  * Mavenize and push policy to PR
 102  *
 103  * @version 1.0
 104  */
 105
 106 public class BrmsPush {
 107     private static final String GROUP_NAMES = "groupNames";
 108     private static final String DROOLS_APPS_TEMPLATE_GROUP =
 109             "org.onap.policy.drools-applications.controlloop.templates";
 110     private static final String DROOLS_APPS_MODEL_GROUP =
 111             "org.onap.policy.drools-applications.controlloop.common.model-impl";
 112     private static final String META_INF = "META-INF";
 113     private static final String KMODULE_XML_FILE = "kmodule.xml";
 114     private static final String POM_XML_FILE = "pom.xml";
 115     private static final String VERSION_0_1_0 = "0.1.0";
 116     private static final String RULES = "rules";
 117     private static final String RESOURCES = "resources";
 118     private static final Logger LOGGER = FlexLogger.getLogger(BrmsPush.class.getName());
 119     private static final String PROJECTSLOCATION = "RuleProjects";
 120     private static final String[] GOALS = {"clean", "deploy"};
 121     private static final String DEFAULT_VERSION = "1.2.3";
 122     private static final String DEPENDENCY_FILE = "dependency.json";
 123     private static final String BRMSPERSISTENCE = "brmsEclipselink.persistencexml";
 124
 125     private static Map<String, String> modifiedGroups = new HashMap<>();
 126     private static IntegrityMonitor im;
 127     private static BackUpMonitor bm;
 128     private String defaultName = null;
 129     private String repId = null;
 130     private String repName = null;
 131     private List<String> repUrlList = null;
 132     private String repUserName = null;
 133     private String repPassword = null;
 134     private String policyKeyId = null;
 135     private boolean createFlag = false;
 136     private String uebList = null;
 137     private List<String> dmaapList = null;
 138     private String pubTopic = null;
 139     private PublisherBuilder pubBuilder = null;
 140     protected BusPublisher publisher = null;
 141     private Long uebDelay = Long.parseLong("20");
 142     private Long dmaapDelay = Long.parseLong("5000");
 143     private String notificationType = null;
 144     private List<ControllerPojo> controllers;
 145     private Map<String, ArrayList<Object>> groupMap = new HashMap<>();
 146     private final Map<String, String> policyMap = new HashMap<>();
 147     private String brmsdependencyversion;
 148     private EntityManager em;
 149     private boolean syncFlag = false;
 150
 151     /**
 152      * Responsible to push policies to the BRMS PDP Policy Repository (PR).
 153      *
 154      * @param propertiesFile the properties file
 155      * @param handler the {@link BackUpHandler}
 156      * @throws PolicyException PolicyException related to the operation
 157      */
 158     public BrmsPush(final String propertiesFile, final BackUpHandler handler) throws PolicyException {
 159         if (propertiesFile == null || handler == null) {
 160             throw new PolicyException("Error no propertiesFile or handler");
 161         }
 162         final Properties config = new Properties();
 163         final Path file = Paths.get(propertiesFile);
 164         if (Files.notExists(file)) {
 165             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "Config File doesn't Exist in the specified Path "
 166                     + file.toString());
 167             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 168                     + "Config File doesn't Exist in the specified Path " + file.toString());
 169         } else {
 170             if (file.toString().endsWith(".properties")) {
 171                 // Grab the Properties.
 172                 setProperty(file, config, handler);
 173             }
 174         }
 175     }
 176
 177     private void setProperty(final Path file, final Properties config, final BackUpHandler handler)
 178             throws PolicyException {
 179         InputStream in;
 180         try {
 181             in = new FileInputStream(file.toFile());
 182             config.load(in);
 183         } catch (final IOException e) {
 184             LOGGER.error(
 185                     XACMLErrorConstants.ERROR_DATA_ISSUE + "Data/File Read Error while reading from the property file.",
 186                     e);
 187             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 188                     + "Data/File Read Error while reading from the property file.");
 189         }
 190         LOGGER.info("Trying to set up IntegrityMonitor");
 191         String resourceName = null;
 192         try {
 193             LOGGER.info("Trying to set up IntegrityMonitor");
 194             resourceName = config.getProperty("RESOURCE_NAME");
 195             if (resourceName == null) {
 196                 LOGGER.warn("RESOURCE_NAME is missing setting default value. ");
 197                 resourceName = "brmsgw_pdp01";
 198             }
 199             resourceName = resourceName.trim();
 200             setIntegrityMonitor(IntegrityMonitor.getInstance(resourceName, config));
 201         } catch (final Exception e) {
 202             LOGGER.error("Error starting Integerity Monitor: " + e);
 203         }
 204         LOGGER.info("Trying to set up BackUpMonitor");
 205         try {
 206             setBackupMonitor(BackUpMonitor.getInstance(BackUpMonitor.ResourceNode.BRMS.toString(), resourceName, config,
 207                     handler));
 208         } catch (final Exception e) {
 209             LOGGER.error("Error starting BackUpMonitor: " + e);
 210         }
 211         if (!config.containsKey(BRMSPERSISTENCE)) {
 212             config.setProperty(PersistenceUnitProperties.ECLIPSELINK_PERSISTENCE_XML, "META-INF/persistenceBRMS.xml");
 213         } else {
 214             config.setProperty(PersistenceUnitProperties.ECLIPSELINK_PERSISTENCE_XML,
 215                     config.getProperty(BRMSPERSISTENCE, "META-INF/persistenceBRMS.xml"));
 216         }
 217         final EntityManagerFactory emf = Persistence.createEntityManagerFactory("BRMSGW", config);
 218         em = emf.createEntityManager();
 219         defaultName = config.getProperty("defaultName");
 220         if (defaultName == null) {
 221             LOGGER.error(
 222                     XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file ");
 223             throw new PolicyException(
 224                     XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file");
 225         }
 226         defaultName = defaultName.trim();
 227         repId = config.getProperty("repositoryID");
 228         if (repId == null) {
 229             LOGGER.error(
 230                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
 231             throw new PolicyException(
 232                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
 233         }
 234         repId = repId.trim();
 235         repName = config.getProperty("repositoryName");
 236         if (repName == null) {
 237             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 238                     + "repositoryName property is missing from the property file ");
 239             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 240                     + "repositoryName property is missing from the property file ");
 241         }
 242         repName = repName.trim();
 243         final String repUrl = config.getProperty("repositoryURL");
 244         if (repUrl == null) {
 245             LOGGER.error(
 246                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
 247             throw new PolicyException(
 248                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
 249         }
 250         if (repUrl.contains(",")) {
 251             repUrlList = new ArrayList<>(Arrays.asList(repUrl.trim().split(",")));
 252         } else {
 253             repUrlList = new ArrayList<>();
 254             repUrlList.add(repUrl);
 255         }
 256         repUserName = config.getProperty("repositoryUsername");
 257         repPassword = config.getProperty("repositoryPassword");
 258         if (repUserName == null || repPassword == null) {
 259             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 260                     + "repostoryUserName and respositoryPassword properties are required.");
 261             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 262                     + "repostoryUserName and respositoryPassword properties are required.");
 263         }
 264         repUserName = repUserName.trim();
 265         repPassword = repPassword.trim();
 266         policyKeyId = config.getProperty("policyKeyID");
 267         if (policyKeyId == null) {
 268             LOGGER.error(
 269                     XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
 270             throw new PolicyException(
 271                     XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
 272         }
 273         policyKeyId = policyKeyId.trim();
 274         final String syncF = config.getProperty("sync", "false").trim();
 275         syncFlag = Boolean.parseBoolean(syncF);
 276         if (syncFlag) {
 277             PolicyLogger.info("SYNC Flag is turned ON. DB will be given Priority.");
 278         }
 279         brmsdependencyversion = config.getProperty("brms.dependency.version");
 280         if (brmsdependencyversion == null) {
 281             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 282                     + "brmsdependencyversion property is missing from the property file, Using default Version.");
 283             brmsdependencyversion = DEFAULT_VERSION;
 284         }
 285         brmsdependencyversion = brmsdependencyversion.trim();
 286         readGroups(config);
 287
 288         // Setup Publisher
 289         notificationType = config.getProperty("NOTIFICATION_TYPE");
 290         if ("dmaap".equalsIgnoreCase(notificationType)) {
 291
 292             LOGGER.info("Notification Type being used is DMaaP... creating instance of BusPublisher.");
 293             // Setting up the Publisher for DMaaP MR
 294             String dmaapServers = config.getProperty("NOTIFICATION_SERVERS");
 295             pubTopic = config.getProperty("NOTIFICATION_TOPIC");
 296             final String aafLogin = config.getProperty("CLIENT_ID").trim();
 297             final String aafPassword = config.getProperty("CLIENT_KEY").trim();
 298
 299             if (dmaapServers == null || pubTopic == null) {
 300                 LOGGER.error(
 301                         XACMLErrorConstants.ERROR_DATA_ISSUE + "DMaaP properties are missing from the property file ");
 302                 throw new PolicyException(
 303                         XACMLErrorConstants.ERROR_DATA_ISSUE + "DMaaP properties are missing from the property file ");
 304             }
 305
 306             dmaapServers = dmaapServers.trim();
 307             pubTopic = pubTopic.trim();
 308
 309             if (dmaapServers.contains(",")) {
 310                 dmaapList = new ArrayList<>(Arrays.asList(dmaapServers.split("\\s*,\\s*")));
 311             } else {
 312                 dmaapList = new ArrayList<>();
 313                 dmaapList.add(dmaapServers);
 314             }
 315
 316             this.publisher =
 317                     new BusPublisher.DmaapPublisherWrapper(this.dmaapList, this.pubTopic, aafLogin, aafPassword);
 318
 319             String notificationDelay = config.getProperty("NOTIFICATION_DELAY");
 320             if (notificationDelay != null && !notificationDelay.isEmpty()) {
 321                 notificationDelay = notificationDelay.trim();
 322                 try {
 323                     dmaapDelay = Long.parseLong(notificationDelay);
 324                 } catch (final NumberFormatException e) {
 325                     LOGGER.error("DMAAP_DELAY not a long format number" + e);
 326                 }
 327             }
 328             LOGGER.info("DMAAP BusPublisher is created.");
 329
 330         } else {
 331             LOGGER.info("Notification Type being used is UEB... creating instance of PublisherBuilder.");
 332             // Setting up the Publisher for UEB
 333             uebList = config.getProperty("NOTIFICATION_SERVERS");
 334             pubTopic = config.getProperty("NOTIFICATION_TOPIC");
 335             if (uebList == null || pubTopic == null) {
 336                 LOGGER.error(
 337                         XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
 338                 throw new PolicyException(
 339                         XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
 340             }
 341             uebList = uebList.trim();
 342             pubTopic = pubTopic.trim();
 343             pubBuilder = new CambriaClientBuilders.PublisherBuilder();
 344             pubBuilder.usingHosts(uebList).onTopic(pubTopic);
 345             String apiKey = config.getProperty("UEB_API_KEY");
 346             String apiSecret = config.getProperty("UEB_API_SECRET");
 347             if (apiKey != null && !apiKey.isEmpty() && apiSecret != null && !apiSecret.isEmpty()) {
 348                 apiKey = apiKey.trim();
 349                 apiSecret = apiSecret.trim();
 350                 pubBuilder.authenticatedBy(apiKey, apiSecret);
 351             }
 352             String notificationDelay = config.getProperty("NOTIFICATION_DELAY");
 353             if (notificationDelay != null && !notificationDelay.isEmpty()) {
 354                 notificationDelay = notificationDelay.trim();
 355                 try {
 356                     uebDelay = Long.parseLong(notificationDelay);
 357                 } catch (final NumberFormatException e) {
 358                     LOGGER.error("UEB_DELAY not a long format number" + e);
 359                 }
 360             }
 361             LOGGER.info("UEB PublisherBuilder is created.");
 362
 363         }
 364
 365     }
 366
 367     private static void setBackupMonitor(final BackUpMonitor instance) {
 368         bm = instance;
 369     }
 370
 371     private static void setIntegrityMonitor(final IntegrityMonitor instance) {
 372         im = instance;
 373     }
 374
 375     /**
 376      * Will Initialize the variables required for BRMSPush.
 377      */
 378     public void initiate(final boolean flag) {
 379         resetModifiedGroups();
 380         controllers = new ArrayList<>();
 381         try {
 382             bm.updateNotification();
 383         } catch (final Exception e) {
 384             LOGGER.error("Error while updating Notification: " + e.getMessage(), e);
 385         }
 386         if (flag) {
 387             syncGroupInfo();
 388         }
 389     }
 390
 391     public void resetDs() {
 392         resetModifiedGroups();
 393         controllers = new ArrayList<>();
 394     }
 395
 396     private static void resetModifiedGroups() {
 397         modifiedGroups = new HashMap<>();
 398     }
 399
 400     /**
 401      * Will Add rules to projects. Creates necessary folders if required.
 402      */
 403     public void addRule(final String name, final String rule, final Map<String, String> responseAttributes) {
 404         // 1 check the response Attributes and determine if this belongs to any projects.
 405         // 2 if not create folder
 406         // 3 create pom.
 407         // 4 copy the rule.
 408         // 5 store the groups that have been updated.
 409         String ksessionName = null;
 410         String selectedName = null;
 411         if (!responseAttributes.isEmpty()) {
 412             // Pick selected Value
 413             String userControllerName = null;
 414             final ArrayList<PEDependency> userDependencies = new ArrayList<>();
 415             for (final Map.Entry<String, String> entry : responseAttributes.entrySet()) {
 416                 final String key = entry.getKey();
 417                 String value = entry.getValue();
 418                 if (key.equals(policyKeyId)) {
 419                     selectedName = value;
 420                 }
 421                 // kmodule configurations
 422                 else if ("kSessionName".equals(key)) {
 423                     ksessionName = value;
 424                 }
 425                 // Check User Specific values.
 426                 if ("$controller:".equals(key)) {
 427                     try {
 428                         final PEDependency dependency = PolicyUtils.jsonStringToObject(value, PEDependency.class);
 429                         userControllerName = key.replaceFirst("$controller:", "");
 430                         LOGGER.info("addRule: userControllerName - " + userControllerName + ", dependency: - "
 431                                 + dependency);
 432                         addToGroup(userControllerName, dependency);
 433                     } catch (final Exception e) {
 434                         LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while resolving Controller: " + e);
 435                     }
 436
 437                 } else if ("$dependency$".equals(key) && value.startsWith("[") && value.endsWith("]")) {
 438                     value = value.substring(1, value.length() - 1).trim();
 439                     final List<String> dependencyStrings = Arrays.asList(value.split(Pattern.quote("},{")));
 440                     for (final String dependencyString : dependencyStrings) {
 441                         try {
 442                             userDependencies.add(PolicyUtils.jsonStringToObject(dependencyString, PEDependency.class));
 443                         } catch (final Exception e) {
 444                             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while resolving Dependencies: "
 445                                     + e);
 446                         }
 447                     }
 448                 }
 449             }
 450             if (userControllerName != null) {
 451                 // Adding custom dependencies here.
 452                 final ArrayList<Object> values = groupMap.get(userControllerName);
 453                 values.add(userDependencies);
 454                 groupMap.put(userControllerName, values);
 455                 selectedName = userControllerName;
 456             }
 457         }
 458         // If no Match then pick Default.
 459         if (selectedName == null) {
 460             selectedName = defaultName;
 461         }
 462         if (groupMap.containsKey(selectedName)) {
 463             // If the key is not got as parameters set by the user, setting the default value for
 464             // kSessionName as
 465             // closedLoop
 466             if (ksessionName == null) {
 467                 LOGGER.info("kSessionName is null, selectedName is  : " + selectedName);
 468                 if (selectedName.equalsIgnoreCase(defaultName)) {
 469                     ksessionName = "closedloop";
 470                 } else {
 471                     ksessionName = "closedloop-" + selectedName;
 472                 }
 473             }
 474             // create directories if missing.
 475             manageProject(selectedName, ksessionName, name, rule);
 476
 477             // Will check for Create Later after generating the Pom.
 478             addModifiedGroup(selectedName, "update");
 479         }
 480     }
 481
 482     private void syncGroupInfo() {
 483         // Sync DB to JMemory.
 484         final EntityTransaction et = em.getTransaction();
 485         try {
 486             et.begin();
 487             final TypedQuery<BrmsGroupInfo> groupInfoQuery =
 488                     em.createQuery("select b from BrmsGroupInfo AS b", BrmsGroupInfo.class);
 489             final List<BrmsGroupInfo> groupInfoResult = groupInfoQuery.getResultList();
 490             if (groupInfoResult.size() != groupMap.size()) {
 491                 for (final BrmsGroupInfo brmsGroupInfo : groupInfoResult) {
 492                     final PEDependency dependency = new PEDependency();
 493                     dependency.setArtifactId(brmsGroupInfo.getArtifactId());
 494                     dependency.setGroupId(brmsGroupInfo.getGroupId());
 495                     dependency.setVersion(brmsGroupInfo.getVersion());
 496                     final ArrayList<Object> values = new ArrayList<>();
 497                     values.add(dependency);
 498                     groupMap.put(brmsGroupInfo.getControllerName(), values);
 499                 }
 500             }
 501
 502             final TypedQuery<BrmsPolicyInfo> policyInfoQuery =
 503                     em.createQuery("select g from BrmsPolicyInfo AS g", BrmsPolicyInfo.class);
 504             final List<BrmsPolicyInfo> policyInfoResult = policyInfoQuery.getResultList();
 505             if (policyInfoResult.size() != policyMap.size()) {
 506                 for (final BrmsPolicyInfo brmsPolicyInfo : policyInfoResult) {
 507                     policyMap.put(brmsPolicyInfo.getPolicyName(),
 508                             brmsPolicyInfo.getControllerName().getControllerName());
 509                 }
 510             }
 511             et.commit();
 512             LOGGER.info("Updated Local Memory values with values from database.");
 513         } catch (final Exception exception) {
 514             LOGGER.error("Unable to sync group info", exception);
 515             et.rollback();
 516             throw exception;
 517         }
 518     }
 519
 520     private void manageProject(final String selectedName, final String ksessionName, final String name,
 521             final String rule) {
 522         // Check if the Project is in Sync. If not get the latest Version.
 523         syncProject(selectedName);
 524         createProject(PROJECTSLOCATION + File.separator + getArtifactId(selectedName) + File.separator + "src"
 525                 + File.separator + "main" + File.separator + RESOURCES, ksessionName);
 526         copyDataToFile(PROJECTSLOCATION + File.separator + getArtifactId(selectedName) + File.separator + "src"
 527                 + File.separator + "main" + File.separator + RESOURCES + File.separator + RULES + File.separator + name
 528                 + ".drl", rule);
 529         addToPolicy(name, selectedName);
 530     }
 531
 532     /*
 533      * Add Policy to JMemory and DataBase.
 534      */
 535     private void addToPolicy(final String policyName, final String controllerName) {
 536
 537         final EntityTransaction et = em.getTransaction();
 538         try {
 539             et.begin();
 540             boolean create = false;
 541             final TypedQuery<BrmsPolicyInfo> policyInfoQuery =
 542                     em.createQuery("select b from BrmsPolicyInfo as b where b.policyName = :pn", BrmsPolicyInfo.class);
 543             policyInfoQuery.setParameter("pn", policyName);
 544             final List<BrmsPolicyInfo> policyInfoResultList = policyInfoQuery.getResultList();
 545             BrmsPolicyInfo brmsPolicyInfo = new BrmsPolicyInfo();
 546             if (!policyInfoResultList.isEmpty()) {
 547                 // Already exists.
 548                 brmsPolicyInfo = policyInfoResultList.get(0);
 549                 if (!brmsPolicyInfo.getControllerName().getControllerName().equals(controllerName)) {
 550                     create = true;
 551                 }
 552             } else {
 553                 create = true;
 554             }
 555             if (create) {
 556                 final TypedQuery<BrmsGroupInfo> groupInfoQuery = em.createQuery(
 557                         "select b from BrmsGroupInfo as b where b.controllerName = :cn", BrmsGroupInfo.class);
 558                 groupInfoQuery.setParameter("cn", controllerName);
 559                 final List<BrmsGroupInfo> groupInfoResultList = groupInfoQuery.getResultList();
 560                 BrmsGroupInfo brmsGroupInfo = new BrmsGroupInfo();
 561                 if (!groupInfoResultList.isEmpty()) {
 562                     brmsGroupInfo = groupInfoResultList.get(0);
 563                 }
 564                 brmsPolicyInfo.setPolicyName(policyName);
 565                 brmsPolicyInfo.setControllerName(brmsGroupInfo);
 566                 em.persist(brmsPolicyInfo);
 567                 em.flush();
 568             }
 569             et.commit();
 570
 571             policyMap.put(policyName, controllerName);
 572         } catch (final Exception exception) {
 573             LOGGER.error("Unable add policy to database", exception);
 574             et.rollback();
 575             throw exception;
 576         }
 577     }
 578
 579     private void syncProject(final String selectedName) {
 580         final boolean projectExists = checkProject(selectedName);
 581         if (projectExists) {
 582             String version;
 583             version = getVersion(selectedName);
 584             if (version == null) {
 585                 LOGGER.error("Error getting local version for the given Controller Name:" + selectedName
 586                         + " going with Default value");
 587                 version = VERSION_0_1_0;
 588             }
 589             final String nextVersion = incrementVersion(version);
 590             final boolean outOfSync = checkRemoteSync(selectedName, nextVersion);
 591             if (!outOfSync) {
 592                 return;
 593             }
 594         }
 595         // We are out of Sync or Project is not Present.
 596         downloadProject(selectedName);
 597     }
 598
 599     private void downloadProject(final String selectedName) {
 600         final NexusArtifact artifact = getLatestArtifactFromNexus(selectedName);
 601         if (artifact == null) {
 602             return;
 603         }
 604         final String dirName = getDirectoryName(selectedName);
 605         URL website;
 606         final String fileName = "rule.jar";
 607         try {
 608             website = new URL(artifact.getUrlPath() + ".jar");
 609             try (ReadableByteChannel rbc = Channels.newChannel(website.openStream());
 610                     FileOutputStream fos = new FileOutputStream(fileName)) {
 611                 fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
 612                 extractJar(fileName, dirName);
 613                 new File(fileName).delete();
 614             } catch (final IOException e) {
 615                 LOGGER.error("Error while downloading the project to File System. " + e.getMessage(), e);
 616             }
 617
 618         } catch (final IOException e1) {
 619             LOGGER.error("Error while retrieve the artifact. " + e1.getMessage(), e1);
 620         }
 621     }
 622
 623     private void extractJar(final String jarFileName, final String artifactId) {
 624         try (JarFile jar = new JarFile(jarFileName)) {
 625             final Enumeration<?> enumEntries = jar.entries();
 626             while (enumEntries.hasMoreElements()) {
 627                 final JarEntry jarEntry = (JarEntry) enumEntries.nextElement();
 628                 File file = null;
 629                 final String fileName = jarEntry.getName().substring(jarEntry.getName().lastIndexOf("/") + 1);
 630                 if (jarEntry.getName().endsWith(".drl")) {
 631                     final String path = PROJECTSLOCATION + File.separator + artifactId + File.separator + "src"
 632                             + File.separator + "main" + File.separator + RESOURCES + File.separator + RULES;
 633                     new File(path).mkdirs();
 634                     if (syncFlag && policyMap.containsKey(fileName.replace(".drl", ""))) {
 635                         file = new File(path + File.separator + fileName);
 636                     } else {
 637                         file = new File(path + File.separator + fileName);
 638                     }
 639                 } else if (jarEntry.getName().endsWith(POM_XML_FILE)) {
 640                     final String path = PROJECTSLOCATION + File.separator + artifactId;
 641                     new File(path).mkdirs();
 642                     file = new File(path + File.separator + fileName);
 643                 } else if (jarEntry.getName().endsWith(KMODULE_XML_FILE)) {
 644                     final String path = PROJECTSLOCATION + File.separator + artifactId + File.separator + "src"
 645                             + File.separator + "main" + File.separator + RESOURCES + File.separator + META_INF;
 646                     new File(path).mkdirs();
 647                     file = new File(path + File.separator + fileName);
 648                 }
 649                 if (file != null) {
 650                     try (InputStream is = jar.getInputStream(jarEntry);
 651                             FileOutputStream fos = new FileOutputStream(file)) {
 652                         while (is.available() > 0) {
 653                             fos.write(is.read());
 654                         }
 655                         LOGGER.info(fileName + " Created..");
 656                     } catch (final IOException e) {
 657                         LOGGER.info("exception Occured" + e);
 658                     }
 659                 }
 660             }
 661         } catch (final IOException e) {
 662             LOGGER.info("exception Occured" + e);
 663         }
 664     }
 665
 666     private NexusArtifact getLatestArtifactFromNexus(final String selectedName) {
 667         final List<NexusArtifact> artifacts = getArtifactFromNexus(selectedName, null);
 668         int bigNum = 0;
 669         int smallNum = 0;
 670         NexusArtifact result = null;
 671         for (final NexusArtifact artifact : artifacts) {
 672             final int majorVal =
 673                     Integer.parseInt(artifact.getVersion().substring(0, artifact.getVersion().indexOf(".")));
 674             final int minorVal = Integer.parseInt(artifact.getVersion()
 675                     .substring(artifact.getVersion().indexOf(".") + 1, artifact.getVersion().lastIndexOf(".")));
 676             if (majorVal > bigNum) {
 677                 bigNum = majorVal;
 678                 smallNum = minorVal;
 679             }
 680             if ((bigNum == majorVal) && (minorVal > smallNum)) {
 681                 smallNum = minorVal;
 682             }
 683             if (bigNum == majorVal && minorVal == smallNum) {
 684                 result = artifact;
 685             }
 686         }
 687         return additionalNexusLatestCheck(selectedName, result);
 688     }
 689
 690     // Additional Check due to Limitations from Nexus API to check if the artifact is the latest.
 691     private NexusArtifact additionalNexusLatestCheck(final String selectedName, final NexusArtifact result) {
 692         if (result == null) {
 693             return result;
 694         }
 695         final String nextVersion = incrementVersion(result.getVersion());
 696         final List<NexusArtifact> artifact = getArtifactFromNexus(selectedName, nextVersion);
 697         return artifact.isEmpty() ? result : additionalNexusLatestCheck(selectedName, artifact.get(0));
 698     }
 699
 700     private boolean checkRemoteSync(final String selectedName, final String version) {
 701         final List<NexusArtifact> artifacts = getArtifactFromNexus(selectedName, version);
 702         return artifacts.isEmpty() ? false : true;
 703     }
 704
 705     private List<NexusArtifact> getArtifactFromNexus(final String selectedName, final String version) {
 706         NexusRestWrapper restWrapper = null;
 707         int index = 0;
 708         boolean flag = false;
 709         while (index < repUrlList.size()) {
 710             try {
 711                 final String repUrl = repUrlList.get(0);
 712                 restWrapper =
 713                         new NexusRestWrapper(repUrl.substring(0, repUrl.indexOf(repUrl.split(":[0-9]+\\/nexus")[1])),
 714                                 repUserName, repPassword);
 715                 final NexusRestSearchParameters searchParameters = new NexusRestSearchParameters();
 716                 searchParameters.useFilterSearch(getGroupId(selectedName), getArtifactId(selectedName), version, null,
 717                         null);
 718
 719                 final List<NexusArtifact> resultList = restWrapper.findArtifact(searchParameters).getArtifactList();
 720                 if (resultList != null) {
 721                     flag = true;
 722                     return resultList;
 723                 }
 724             } catch (NexusRestWrapperException | ProcessingException e) {
 725                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "Connection to remote Nexus has failed. "
 726                         + e.getMessage(), e);
 727             } finally {
 728                 if (null != restWrapper) {
 729                     restWrapper.close();
 730                 }
 731                 if (!flag) {
 732                     Collections.rotate(repUrlList, -1);
 733                     index++;
 734                 }
 735             }
 736         }
 737         return new ArrayList<>();
 738     }
 739
 740     private String incrementVersion(final String version) {
 741         int majorVal = Integer.parseInt(version.substring(0, version.indexOf(".")));
 742         int minorVal = Integer.parseInt(version.substring(version.indexOf(".") + 1, version.lastIndexOf(".")));
 743         if (minorVal >= 9) {
 744             majorVal += 1;
 745             minorVal = 0;
 746         } else {
 747             minorVal += 1;
 748         }
 749         return majorVal + "." + minorVal + version.substring(version.lastIndexOf("."));
 750     }
 751
 752     private boolean checkProject(final String selectedName) {
 753         return new File(PROJECTSLOCATION + File.separator + getDirectoryName(selectedName)).exists();
 754     }
 755
 756     private String getDirectoryName(final String selectedName) {
 757         return getArtifactId(selectedName);
 758     }
 759
 760     /**
 761      * Will Push policies to the PolicyRepo.
 762      *
 763      * @throws PolicyException PolicyException related to the operation
 764      */
 765     public void pushRules() throws PolicyException {
 766         // Check how many groups have been updated.
 767         // Invoke their Maven process.
 768         try {
 769             im.startTransaction();
 770         } catch (final Exception e) {
 771             LOGGER.error("Error while starting Transaction " + e);
 772         }
 773         if (!modifiedGroups.isEmpty()) {
 774             Boolean flag = false;
 775             for (final Map.Entry<String, String> entry : modifiedGroups.entrySet()) {
 776                 InvocationResult result = null;
 777                 final String group = entry.getKey();
 778                 try {
 779                     LOGGER.info("PushRules: ModifiedGroups, Key: " + group + ", Value: " + entry.getValue());
 780                     final InvocationRequest request = new DefaultInvocationRequest();
 781                     setVersion(group);
 782                     createPom(group);
 783                     request.setPomFile(new File(
 784                             PROJECTSLOCATION + File.separator + getArtifactId(group) + File.separator + POM_XML_FILE));
 785                     request.setGoals(Arrays.asList(GOALS));
 786                     final Invoker invoker = new DefaultInvoker();
 787                     result = invoker.execute(request);
 788                     if (result.getExecutionException() != null) {
 789                         LOGGER.error(result.getExecutionException());
 790                     } else if (result.getExitCode() != 0) {
 791                         LOGGER.error("Maven Invocation failure..!");
 792                     }
 793                 } catch (final Exception e) {
 794                     LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Maven Invocation issue for "
 795                             + getArtifactId(group) + e.getMessage(), e);
 796                 }
 797                 if (result != null && result.getExitCode() == 0) {
 798                     LOGGER.info("Build Completed..!");
 799                     if (createFlag) {
 800                         addNotification(group, "create");
 801                     } else {
 802                         addNotification(group, entry.getValue());
 803                     }
 804                     flag = true;
 805                 } else {
 806                     throw new PolicyException(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Maven Invocation failure!");
 807                 }
 808             }
 809             if (flag) {
 810                 sendNotification(controllers);
 811             }
 812         }
 813         if (im != null) {
 814             im.endTransaction();
 815         }
 816     }
 817
 818     /**
 819      * Removes a Rule from Rule Projects.
 820      */
 821     public void removeRule(final String name) {
 822         final String controllerName = getGroupName(name);
 823         if (controllerName == null) {
 824             LOGGER.info("Error finding the controllerName for the given Policy: " + name);
 825             return;
 826         }
 827         syncProject(controllerName);
 828         getNameAndSetRemove(controllerName, name);
 829     }
 830
 831     private String getGroupName(final String name) {
 832         if (policyMap.containsKey(name)) {
 833             return policyMap.get(name);
 834         } else {
 835             syncGroupInfo();
 836             return policyMap.containsKey(name) ? policyMap.get(name) : null;
 837         }
 838     }
 839
 840     private void addModifiedGroup(final String controllerName, final String operation) {
 841         if (controllerName != null) {
 842             modifiedGroups.put(controllerName, operation);
 843         }
 844     }
 845
 846     private void addNotification(final String controllerName, final String operation) {
 847         final ControllerPojo controllerPojo = new ControllerPojo();
 848         controllerPojo.setName(controllerName);
 849         controllerPojo.setOperation(operation);
 850         final HashMap<String, String> drools = new HashMap<>();
 851         drools.put("groupId", getGroupId(controllerName));
 852         drools.put("artifactId", getArtifactId(controllerName));
 853         drools.put("version", getVersion(controllerName));
 854         controllerPojo.setDrools(drools);
 855         controllers.add(controllerPojo);
 856         try {
 857             LOGGER.debug("Notification added: " + PolicyUtils.objectToJsonString(controllerPojo));
 858         } catch (final JsonProcessingException e) {
 859             LOGGER.error(MessageCodes.ERROR_SCHEMA_INVALID + "Json Processing Error " + e);
 860         }
 861     }
 862
 863     private void removedRuleModifiedGroup(final String controllerName) {
 864         // This will be sending Notification to PDPD directly to Lock
 865         final ControllerPojo controllerPojo = new ControllerPojo();
 866         controllerPojo.setName(controllerName);
 867         controllerPojo.setOperation("lock");
 868         final List<ControllerPojo> controllerPojos = new ArrayList<>();
 869         controllerPojos.add(controllerPojo);
 870         sendNotification(controllerPojos);
 871     }
 872
 873     private void sendNotification(final List<ControllerPojo> controllers) {
 874         final NotificationPojo notification = new NotificationPojo();
 875         final String requestId = UUID.randomUUID().toString();
 876         LOGGER.info("Generating notification RequestID : " + requestId);
 877         notification.setRequestId(requestId);
 878         notification.setEntity("controller");
 879         notification.setControllers(controllers);
 880         try {
 881             final String notificationJson = PolicyUtils.objectToJsonString(notification);
 882             LOGGER.info("Sending Notification :\n" + notificationJson);
 883             sendMessage(notificationJson);
 884         } catch (final Exception e) {
 885             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while sending notification to PDP-D "
 886                     + e.getMessage(), e);
 887         }
 888     }
 889
 890     private void sendMessage(final String message) throws IOException, GeneralSecurityException, InterruptedException {
 891
 892         if ("dmaap".equalsIgnoreCase(notificationType)) {
 893             // Sending Message through DMaaP Message Router
 894             LOGGER.debug("DMAAP Publishing Message");
 895
 896             publisher.send("MyPartitionKey", message);
 897
 898             LOGGER.debug("Message Published on DMaaP :" + dmaapList.get(0) + "for Topic: " + pubTopic);
 899
 900             Thread.sleep(dmaapDelay);
 901             publisher.close();
 902         } else {
 903             // Sending Message through UEB interface.
 904             LOGGER.debug("UEB Publishing Message");
 905
 906             final CambriaBatchingPublisher pub = pubBuilder.build();
 907             pub.send("MyPartitionKey", message);
 908
 909             final List<?> stuck = pub.close(uebDelay, TimeUnit.SECONDS);
 910             if (!stuck.isEmpty()) {
 911                 LOGGER.error(stuck.size() + " messages unsent");
 912             } else {
 913                 LOGGER.debug("Clean exit; Message Published on UEB : " + uebList + "for Topic: " + pubTopic);
 914             }
 915         }
 916
 917     }
 918
 919     private void createPom(final String name) {
 920         final Model model = new Model();
 921         model.setModelVersion("4.0.0");
 922         model.setGroupId(getGroupId(name));
 923         model.setArtifactId(getArtifactId(name));
 924         model.setVersion(getVersion(name));
 925         model.setName(name);
 926         final DistributionManagement distributionManagement = new DistributionManagement();
 927         final DeploymentRepository repository = new DeploymentRepository();
 928         repository.setId(repId);
 929         repository.setName(repName);
 930         repository.setUrl(repUrlList.get(0));
 931         distributionManagement.setRepository(repository);
 932         model.setDistributionManagement(distributionManagement);
 933         // Dependency Management goes here.
 934         List<Dependency> dependencyList = new ArrayList<>();
 935         if (groupMap.get(name).size() > 1) {
 936             @SuppressWarnings("unchecked")
 937             final ArrayList<PEDependency> dependencies = (ArrayList<PEDependency>) groupMap.get(name).get(1);
 938             for (final PEDependency dependency : dependencies) {
 939                 dependencyList.add(dependency.getDependency());
 940             }
 941         } else {
 942             // Add Default dependencies.
 943             dependencyList = getDependencies(name);
 944         }
 945         model.setDependencies(dependencyList);
 946         Writer writer = null;
 947         try {
 948             writer = WriterFactory.newXmlWriter(
 949                     new File(PROJECTSLOCATION + File.separator + getArtifactId(name) + File.separator + POM_XML_FILE));
 950             final MavenXpp3Writer pomWriter = new MavenXpp3Writer();
 951             pomWriter.write(writer, model);
 952         } catch (final Exception e) {
 953             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while creating POM for " + getArtifactId(name)
 954                     + e.getMessage(), e);
 955         } finally {
 956             IOUtil.close(writer);
 957         }
 958     }
 959
 960     private List<Dependency> getDependencies(final String controllerName) {
 961         // Read the Dependency Information from property file.
 962         final Path file = Paths.get(DEPENDENCY_FILE);
 963         if (!Files.notExists(file)) {
 964             try {
 965                 final String dependencyJson = new String(Files.readAllBytes(file), StandardCharsets.UTF_8);
 966                 final DependencyInfo dependencyInfo =
 967                         PolicyUtils.jsonStringToObject(dependencyJson, DependencyInfo.class);
 968                 String controller = "default";
 969                 if (dependencyInfo.getDependencies().containsKey(controllerName)) {
 970                     controller = controllerName;
 971                 }
 972                 final List<Dependency> dependencyList = new ArrayList<>();
 973                 for (final PEDependency dependency : dependencyInfo.getDependencies().get(controller)) {
 974                     dependencyList.add(dependency.getDependency());
 975                 }
 976                 return dependencyList;
 977             } catch (IOException | NullPointerException e) {
 978                 LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW
 979                         + "Error while getting dependecy Information for controller: " + controllerName
 980                         + e.getMessage(), e);
 981             }
 982         }
 983         return defaultDependencies(controllerName);
 984     }
 985
 986     /**
 987      * Default Dependency Section. Can be changed as required.
 988      *
 989      * @param controllerName the controller name
 990      * @return changed dependency list
 991      */
 992     public List<Dependency> defaultDependencies(final String controllerName) {
 993
 994         final List<Dependency> dependencyList = new ArrayList<>();
 995         final String version = StringEscapeUtils.escapeJava(brmsdependencyversion);
 996
 997         final Dependency demoDependency = new Dependency();
 998         demoDependency.setGroupId(DROOLS_APPS_TEMPLATE_GROUP);
 999         demoDependency.setArtifactId("template.demo");
1000         demoDependency.setVersion(version);
1001         dependencyList.add(demoDependency);
1002
1003         final Dependency controlloopDependency = new Dependency();
1004         controlloopDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
1005         controlloopDependency.setArtifactId("events");
1006         controlloopDependency.setVersion(version);
1007         dependencyList.add(controlloopDependency);
1008
1009         final Dependency restDependency = new Dependency();
1010         restDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
1011         restDependency.setArtifactId("controlloop.common.model-impl.rest");
1012         restDependency.setVersion(version);
1013         dependencyList.add(restDependency);
1014
1015         final Dependency appcDependency = new Dependency();
1016         appcDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
1017         appcDependency.setArtifactId("controlloop.common.model-impl.appc");
1018         appcDependency.setVersion(version);
1019         dependencyList.add(appcDependency);
1020
1021         final Dependency aaiDependency = new Dependency();
1022         aaiDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
1023         aaiDependency.setArtifactId("controlloop.common.model-impl.aai");
1024         aaiDependency.setVersion(version);
1025         dependencyList.add(aaiDependency);
1026
1027         final Dependency msoDependency = new Dependency();
1028         msoDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
1029         msoDependency.setArtifactId("controlloop.common.model-impl.so");
1030         msoDependency.setVersion(version);
1031         dependencyList.add(msoDependency);
1032
1033         final Dependency trafficgeneratorDependency = new Dependency();
1034         trafficgeneratorDependency.setGroupId(DROOLS_APPS_MODEL_GROUP);
1035         trafficgeneratorDependency.setArtifactId("controlloop.common.model-impl.trafficgenerator");
1036         trafficgeneratorDependency.setVersion(version);
1037         dependencyList.add(trafficgeneratorDependency);
1038         return dependencyList;
1039     }
1040
1041     private void createProject(final String path, final String ksessionName) {
1042         new File(path + File.separator + RULES).mkdirs();
1043         new File(path + File.separator + META_INF).mkdirs();
1044         if (!Files.exists(Paths.get(path + File.separator + META_INF + File.separator + KMODULE_XML_FILE))) {
1045             // Hard coding XML for PDP Drools to accept our Rules.
1046             final String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + "\n"
1047                     + "<kmodule xmlns=\"http://jboss.org/kie/6.0.0/kmodule\">" + "\n"
1048                     + "<kbase name=\"rules\" packages=\"rules\">" + "\n" + "<ksession name=\"" + ksessionName + "\"/>"
1049                     + "\n" + "</kbase></kmodule>";
1050             copyDataToFile(path + File.separator + META_INF + File.separator + KMODULE_XML_FILE, xml);
1051         }
1052     }
1053
1054     private void copyDataToFile(final String file, final String rule) {
1055         try {
1056             FileUtils.writeStringToFile(new File(file), rule);
1057         } catch (final Exception e) {
1058             LOGGER.error(
1059                     XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while creating Rule for " + file + e.getMessage(),
1060                     e);
1061         }
1062     }
1063
1064     private void readGroups(final Properties config) throws PolicyException {
1065         String[] groupNames;
1066         final String groupNamesError = "groupNames property is missing or empty from the property file ";
1067         if (!config.containsKey(GROUP_NAMES) || config.getProperty(GROUP_NAMES) == null) {
1068             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + groupNamesError);
1069         }
1070         if (config.getProperty(GROUP_NAMES).contains(",")) {
1071             groupNames = config.getProperty(GROUP_NAMES).replaceAll(" ", "").split(",");
1072         } else {
1073             groupNames = new String[] {config.getProperty(GROUP_NAMES).replaceAll(" ", "")};
1074         }
1075         if (groupNames == null || groupNames.length == 0) {
1076             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + groupNamesError);
1077             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + groupNamesError);
1078         }
1079         groupMap = new HashMap<>();
1080         for (int counter = 0; counter < groupNames.length; counter++) {
1081             final String name = groupNames[counter];
1082             final String groupId = config.getProperty(name + ".groupID");
1083             if (groupId == null) {
1084                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1085                         + ".groupID property is missing from the property file ");
1086                 throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1087                         + ".groupID property is missing from the property file ");
1088             }
1089             final String artifactId = config.getProperty(name + ".artifactID");
1090             if (artifactId == null) {
1091                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1092                         + ".artifactID property is missing from the property file ");
1093                 throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1094                         + ".artifactID property is missing from the property file ");
1095             }
1096             final PEDependency dependency = new PEDependency();
1097             dependency.setArtifactId(artifactId);
1098             dependency.setGroupId(groupId);
1099             // Add to list if we got all
1100             addToGroup(name, dependency);
1101         }
1102     }
1103
1104     private void addToGroup(final String name, final PEDependency dependency) {
1105         final EntityTransaction et = em.getTransaction();
1106         try {
1107             et.begin();
1108             final TypedQuery<BrmsGroupInfo> query = em
1109                     .createQuery("select b from BrmsGroupInfo as b where b.controllerName = :cn", BrmsGroupInfo.class);
1110             query.setParameter("cn", name);
1111             final List<BrmsGroupInfo> groupList = query.getResultList();
1112             BrmsGroupInfo brmsGroupInfo = null;
1113             if (!groupList.isEmpty()) {
1114                 LOGGER.info("Controller name already Existing in DB. Will be updating the DB Values" + name);
1115                 brmsGroupInfo = groupList.get(0);
1116             }
1117             if (brmsGroupInfo == null) {
1118                 brmsGroupInfo = new BrmsGroupInfo();
1119             }
1120             brmsGroupInfo.setControllerName(name);
1121             brmsGroupInfo.setGroupId(dependency.getGroupId());
1122             brmsGroupInfo.setArtifactId(dependency.getArtifactId());
1123             brmsGroupInfo.setVersion(dependency.getVersion());
1124             em.persist(brmsGroupInfo);
1125             em.flush();
1126             et.commit();
1127
1128             final ArrayList<Object> values = new ArrayList<>();
1129             values.add(dependency);
1130             groupMap.put(name, values);
1131         } catch (final Exception exception) {
1132             LOGGER.error("Unable add/update policy group to database for controller name: " + name, exception);
1133             et.rollback();
1134             throw exception;
1135         }
1136     }
1137
1138     private String getArtifactId(final String name) {
1139         return ((PEDependency) groupMap.get(name).get(0)).getArtifactId();
1140     }
1141
1142     private String getGroupId(final String name) {
1143         return ((PEDependency) groupMap.get(name).get(0)).getGroupId();
1144     }
1145
1146     private String getVersion(final String name) {
1147         return ((PEDependency) groupMap.get(name).get(0)).getVersion();
1148     }
1149
1150     private void getNameAndSetRemove(final String controllerName, final String policyName) {
1151         final String artifactName = getArtifactId(controllerName);
1152         final String ruleFolder = PROJECTSLOCATION + File.separator + artifactName + File.separator + "src"
1153                 + File.separator + "main" + File.separator + RESOURCES + File.separator + RULES;
1154         final File file = new File(ruleFolder + File.separator + policyName + ".drl");
1155         if (file.delete()) {
1156             LOGGER.info("Deleted File.. " + file.getAbsolutePath());
1157             removePolicyFromGroup(policyName, controllerName);
1158         }
1159         if (new File(ruleFolder).listFiles().length == 0) {
1160             removedRuleModifiedGroup(controllerName);
1161         } else {
1162             // This is an update in terms of PDPD.
1163             addModifiedGroup(controllerName, "update");
1164         }
1165     }
1166
1167     // Removes Policy from Memory and Database.
1168     private void removePolicyFromGroup(final String policyName, final String controllerName) {
1169         final EntityTransaction et = em.getTransaction();
1170         try {
1171             et.begin();
1172             final TypedQuery<BrmsPolicyInfo> query =
1173                     em.createQuery("select b from BrmsPolicyInfo as b where b.policyName = :pn", BrmsPolicyInfo.class);
1174             query.setParameter("pn", policyName);
1175             final List<BrmsPolicyInfo> pList = query.getResultList();
1176             BrmsPolicyInfo brmsPolicyInfo;
1177             if (!pList.isEmpty()) {
1178                 // Already exists.
1179                 brmsPolicyInfo = pList.get(0);
1180                 if (brmsPolicyInfo.getControllerName().getControllerName().equals(controllerName)) {
1181                     em.remove(brmsPolicyInfo);
1182                     em.flush();
1183                 }
1184             }
1185             et.commit();
1186             policyMap.remove(policyName);
1187         } catch (final Exception exception) {
1188             LOGGER.error("Unable remove policy from group to database for policy name: " + policyName, exception);
1189             et.rollback();
1190             throw exception;
1191         }
1192     }
1193
1194     private void setVersion(final String selectedName) {
1195         String newVersion = VERSION_0_1_0;
1196         createFlag = false;
1197         final NexusArtifact artifact = getLatestArtifactFromNexus(selectedName);
1198         if (artifact != null) {
1199             newVersion = incrementVersion(artifact.getVersion());
1200         }
1201         if (VERSION_0_1_0.equals(newVersion)) {
1202             createFlag = true;
1203         }
1204         setVersion(newVersion, selectedName);
1205         LOGGER.info("Controller: " + selectedName + "is on version: " + newVersion);
1206     }
1207
1208     private void setVersion(final String newVersion, final String controllerName) {
1209         final PEDependency userController = (PEDependency) groupMap.get(controllerName).get(0);
1210         userController.setVersion(newVersion);
1211         groupMap.get(controllerName).set(0, userController);
1212     }
1213
1214     // Return BackUpMonitor
1215     public static BackUpMonitor getBackUpMonitor() {
1216         return bm;
1217     }
1218
1219     /**
1220      * Rotate URLs list.
1221      */
1222     public void rotateUrls() {
1223         if (repUrlList != null) {
1224             Collections.rotate(repUrlList, -1);
1225         }
1226     }
1227
1228     /**
1229      * Get URL List Size.
1230      *
1231      * @return URL list size
1232      */
1233     public int urlListSize() {
1234         return repUrlList != null ? repUrlList.size() : 0;
1235     }
1236 }