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.AdministrativeStateException;
  77 import org.onap.policy.common.im.IntegrityMonitor;
  78 import org.onap.policy.common.logging.eelf.MessageCodes;
  79 import org.onap.policy.common.logging.eelf.PolicyLogger;
  80 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  81 import org.onap.policy.common.logging.flexlogger.Logger;
  82 import org.onap.policy.utils.BackUpHandler;
  83 import org.onap.policy.utils.BackUpMonitor;
  84 import org.onap.policy.utils.BusPublisher;
  85 import org.onap.policy.utils.PolicyUtils;
  86 import org.onap.policy.xacml.api.XACMLErrorConstants;
  87 import org.sonatype.nexus.client.NexusClient;
  88 import org.sonatype.nexus.client.NexusClientException;
  89 import org.sonatype.nexus.client.NexusConnectionException;
  90 import org.sonatype.nexus.client.rest.NexusRestClient;
  91 import org.sonatype.nexus.rest.model.NexusArtifact;
  92
  93 import com.att.nsa.cambria.client.CambriaBatchingPublisher;
  94 import com.att.nsa.cambria.client.CambriaClientBuilders;
  95 import com.att.nsa.cambria.client.CambriaClientBuilders.PublisherBuilder;
  96 import com.fasterxml.jackson.core.JsonProcessingException;
  97
  98 /**
  99  * BRMSPush: Application responsible to push policies to the BRMS PDP Policy Repository (PR). Mavenize and push policy
 100  * to PR
 101  *
 102  * @version 1.0
 103  */
 104
 105 @SuppressWarnings("deprecation")
 106 public class BRMSPush {
 107     private static final Logger LOGGER = FlexLogger.getLogger(BRMSPush.class.getName());
 108     private static final String PROJECTSLOCATION = "RuleProjects";
 109     private static final String[] GOALS = { "clean", "deploy" };
 110     private static final String DEFAULT_VERSION = "1.1.0-SNAPSHOT";
 111     private static final String DEPENDENCY_FILE = "dependency.json";
 112
 113     private static Map<String, String> modifiedGroups = new HashMap<>();
 114     private static IntegrityMonitor im;
 115     private static BackUpMonitor bm;
 116     private String defaultName = null;
 117     private String repID = null;
 118     private String repName = null;
 119     private ArrayList<String> repURLs = null;
 120     private String repUserName = null;
 121     private String repPassword = null;
 122     private String policyKeyID = null;
 123     private boolean createFlag = false;
 124     private String uebList = null;
 125     private List<String> dmaapList = null;
 126     private String pubTopic = null;
 127     private PublisherBuilder pubBuilder = null;
 128     protected BusPublisher publisher = null;
 129     private Long uebDelay = Long.parseLong("20");
 130     private Long dmaapDelay = Long.parseLong("5000");
 131     private String notificationType = null;
 132     private ArrayList<ControllerPOJO> controllers;
 133     private HashMap<String, ArrayList<Object>> groupMap = new HashMap<>();
 134     private Map<String, String> policyMap = new HashMap<>();
 135     private String brmsdependencyversion;
 136     private EntityManager em;
 137     private boolean syncFlag = false;
 138
 139     public BRMSPush(String propertiesFile, BackUpHandler handler) throws PolicyException {
 140         Properties config = new Properties();
 141         Path file = Paths.get(propertiesFile);
 142         if (Files.notExists(file)) {
 143             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "Config File doesn't Exist in the specified Path "
 144                     + file.toString());
 145             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 146                     + "Config File doesn't Exist in the specified Path " + file.toString());
 147         } else {
 148             if (file.toString().endsWith(".properties")) {
 149                 // Grab the Properties.
 150                 setProperty(file, config, handler);
 151             }
 152         }
 153     }
 154
 155     private void setProperty(Path file, Properties config, BackUpHandler handler) throws PolicyException {
 156         InputStream in;
 157         try {
 158             in = new FileInputStream(file.toFile());
 159             config.load(in);
 160         } catch (IOException e) {
 161             LOGGER.error(
 162                     XACMLErrorConstants.ERROR_DATA_ISSUE + "Data/File Read Error while reading from the property file.",
 163                     e);
 164             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 165                     + "Data/File Read Error while reading from the property file.");
 166         }
 167         LOGGER.info("Trying to set up IntegrityMonitor");
 168         String resourceName = null;
 169         try {
 170             LOGGER.info("Trying to set up IntegrityMonitor");
 171             resourceName = config.getProperty("RESOURCE_NAME");
 172             if (resourceName == null) {
 173                 LOGGER.warn("RESOURCE_NAME is missing setting default value. ");
 174                 resourceName = "brmsgw_pdp01";
 175             }
 176             resourceName = resourceName.trim();
 177             setIntegrityMonitor(IntegrityMonitor.getInstance(resourceName, config));
 178         } catch (Exception e) {
 179             LOGGER.error("Error starting Integerity Monitor: " + e);
 180         }
 181         LOGGER.info("Trying to set up BackUpMonitor");
 182         try {
 183             setBackupMonitor(BackUpMonitor.getInstance(BackUpMonitor.ResourceNode.BRMS.toString(), resourceName, config,
 184                     handler));
 185         } catch (Exception e) {
 186             LOGGER.error("Error starting BackUpMonitor: " + e);
 187         }
 188         config.setProperty(PersistenceUnitProperties.ECLIPSELINK_PERSISTENCE_XML, "META-INF/persistenceBRMS.xml");
 189         EntityManagerFactory emf = Persistence.createEntityManagerFactory("BRMSGW", config);
 190         em = emf.createEntityManager();
 191         defaultName = config.getProperty("defaultName");
 192         if (defaultName == null) {
 193             LOGGER.error(
 194                     XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file ");
 195             throw new PolicyException(
 196                     XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file");
 197         }
 198         defaultName = defaultName.trim();
 199         repID = config.getProperty("repositoryID");
 200         if (repID == null) {
 201             LOGGER.error(
 202                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
 203             throw new PolicyException(
 204                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
 205         }
 206         repID = repID.trim();
 207         repName = config.getProperty("repositoryName");
 208         if (repName == null) {
 209             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 210                     + "repositoryName property is missing from the property file ");
 211             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 212                     + "repositoryName property is missing from the property file ");
 213         }
 214         repName = repName.trim();
 215         String repURL = config.getProperty("repositoryURL");
 216         if (repURL == null) {
 217             LOGGER.error(
 218                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
 219             throw new PolicyException(
 220                     XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
 221         }
 222         if (repURL.contains(",")) {
 223             repURLs = new ArrayList<>(Arrays.asList(repURL.trim().split(",")));
 224         } else {
 225             repURLs = new ArrayList<>();
 226             repURLs.add(repURL);
 227         }
 228         repUserName = config.getProperty("repositoryUsername");
 229         repPassword = config.getProperty("repositoryPassword");
 230         if (repUserName == null || repPassword == null) {
 231             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 232                     + "repostoryUserName and respositoryPassword properties are required.");
 233             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
 234                     + "repostoryUserName and respositoryPassword properties are required.");
 235         }
 236         repUserName = repUserName.trim();
 237         repPassword = repPassword.trim();
 238         policyKeyID = config.getProperty("policyKeyID");
 239         if (policyKeyID == null) {
 240             LOGGER.error(
 241                     XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
 242             throw new PolicyException(
 243                     XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
 244         }
 245         policyKeyID = policyKeyID.trim();
 246         String syncF = config.getProperty("sync", "false").trim();
 247         syncFlag = Boolean.parseBoolean(syncF);
 248         if (syncFlag) {
 249             PolicyLogger.info("SYNC Flag is turned ON. DB will be given Priority.");
 250         }
 251         brmsdependencyversion = config.getProperty("brms.dependency.version");
 252         if (brmsdependencyversion == null) {
 253             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
 254                     + "brmsdependencyversion property is missing from the property file, Using default Version.");
 255             brmsdependencyversion = DEFAULT_VERSION;
 256         }
 257         brmsdependencyversion = brmsdependencyversion.trim();
 258         readGroups(config);
 259
 260         // Setup Publisher
 261         notificationType = config.getProperty("NOTIFICATION_TYPE");
 262         if ("dmaap".equalsIgnoreCase(notificationType)) {
 263
 264             LOGGER.info("Notification Type being used is DMaaP... creating instance of BusPublisher.");
 265             // Setting up the Publisher for DMaaP MR
 266             String dmaapServers = config.getProperty("NOTIFICATION_SERVERS");
 267             pubTopic = config.getProperty("NOTIFICATION_TOPIC");
 268             String aafLogin = config.getProperty("CLIENT_ID").trim();
 269             String aafPassword = config.getProperty("CLIENT_KEY").trim();
 270
 271             if (dmaapServers == null || pubTopic == null) {
 272                 LOGGER.error(
 273                         XACMLErrorConstants.ERROR_DATA_ISSUE + "DMaaP properties are missing from the property file ");
 274                 throw new PolicyException(
 275                         XACMLErrorConstants.ERROR_DATA_ISSUE + "DMaaP properties are missing from the property file ");
 276             }
 277
 278             dmaapServers = dmaapServers.trim();
 279             pubTopic = pubTopic.trim();
 280
 281             if (dmaapServers.contains(",")) {
 282                 dmaapList = new ArrayList<>(Arrays.asList(dmaapServers.split("\\s*,\\s*")));
 283             } else {
 284                 dmaapList = new ArrayList<>();
 285                 dmaapList.add(dmaapServers);
 286             }
 287
 288             this.publisher = new BusPublisher.DmaapPublisherWrapper(this.dmaapList, this.pubTopic, aafLogin,
 289                     aafPassword);
 290
 291             String dDelay = config.getProperty("NOTIFICATION_DELAY");
 292             if (dDelay != null && !dDelay.isEmpty()) {
 293                 dDelay = dDelay.trim();
 294                 try {
 295                     dmaapDelay = Long.parseLong(dDelay);
 296                 } catch (NumberFormatException e) {
 297                     LOGGER.error("DMAAP_DELAY not a long format number" + e);
 298                 }
 299             }
 300             LOGGER.info("DMAAP BusPublisher is created.");
 301
 302         } else {
 303             LOGGER.info("Notification Type being used is UEB... creating instance of PublisherBuilder.");
 304             // Setting up the Publisher for UEB
 305             uebList = config.getProperty("NOTIFICATION_SERVERS");
 306             pubTopic = config.getProperty("NOTIFICATION_TOPIC");
 307             String apiKey = config.getProperty("UEB_API_KEY");
 308             String apiSecret = config.getProperty("UEB_API_SECRET");
 309             if (uebList == null || pubTopic == null) {
 310                 LOGGER.error(
 311                         XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
 312                 throw new PolicyException(
 313                         XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
 314             }
 315             uebList = uebList.trim();
 316             pubTopic = pubTopic.trim();
 317             pubBuilder = new CambriaClientBuilders.PublisherBuilder();
 318             pubBuilder.usingHosts(uebList).onTopic(pubTopic);
 319             if (apiKey != null && !apiKey.isEmpty() && apiSecret != null && !apiSecret.isEmpty()) {
 320                 apiKey = apiKey.trim();
 321                 apiSecret = apiSecret.trim();
 322                 pubBuilder.authenticatedBy(apiKey, apiSecret);
 323             }
 324             String uDelay = config.getProperty("NOTIFICATION_DELAY");
 325             if (uDelay != null && !uDelay.isEmpty()) {
 326                 uDelay = uDelay.trim();
 327                 try {
 328                     uebDelay = Long.parseLong(uDelay);
 329                 } catch (NumberFormatException e) {
 330                     LOGGER.error("UEB_DELAY not a long format number" + e);
 331                 }
 332             }
 333             LOGGER.info("UEB PublisherBuilder is created.");
 334
 335         }
 336
 337     }
 338
 339     private static void setBackupMonitor(BackUpMonitor instance) {
 340         bm = instance;
 341     }
 342
 343     private static void setIntegrityMonitor(IntegrityMonitor instance) {
 344         im = instance;
 345     }
 346
 347     /**
 348      * Will Initialize the variables required for BRMSPush.
 349      */
 350     public void initiate(boolean flag) {
 351         resetModifiedGroups();
 352         controllers = new ArrayList<>();
 353         try {
 354             bm.updateNotification();
 355         } catch (Exception e) {
 356             LOGGER.error("Error while updating Notification: " + e.getMessage(), e);
 357         }
 358         if (flag)
 359             syncGroupInfo();
 360     }
 361
 362     private static void resetModifiedGroups() {
 363         modifiedGroups = new HashMap<>();
 364     }
 365
 366     /**
 367      * Will Add rules to projects. Creates necessary folders if required.
 368      */
 369     public void addRule(String name, String rule, Map<String, String> responseAttributes) {
 370         // 1 check the response Attributes and determine if this belongs to any projects.
 371         // 2 if not create folder
 372         // 3 create pom.
 373         // 4 copy the rule.
 374         // 5 store the groups that have been updated.
 375         String kSessionName = null;
 376         String selectedName = null;
 377         if (!responseAttributes.isEmpty()) {
 378             // Pick selected Value
 379             String userControllerName = null;
 380             ArrayList<PEDependency> userDependencies = new ArrayList<>();
 381             for (String key : responseAttributes.keySet()) {
 382                 if (key.equals(policyKeyID)) {
 383                     selectedName = responseAttributes.get(key);
 384                 }
 385                 // kmodule configurations
 386                 else if (key.equals("kSessionName")) {
 387                     kSessionName = responseAttributes.get(key);
 388                 }
 389                 // Check User Specific values.
 390                 if (key.equals("$controller:")) {
 391                     try {
 392                         PEDependency dependency = PolicyUtils.jsonStringToObject(responseAttributes.get(key),
 393                                 PEDependency.class);
 394                         userControllerName = key.replaceFirst("$controller:", "");
 395                         addToGroup(userControllerName, dependency);
 396                     } catch (Exception e) {
 397                         LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while resolving Controller: " + e);
 398                     }
 399
 400                 } else if (key.equals("$dependency$")) {
 401                     String value = responseAttributes.get(key);
 402                     if (value.startsWith("[") && value.endsWith("]")) {
 403                         value = value.substring(1, value.length() - 1).trim();
 404                         List<String> dependencyStrings = Arrays.asList(value.split("},{"));
 405                         for (String dependencyString : dependencyStrings) {
 406                             try {
 407                                 userDependencies
 408                                         .add(PolicyUtils.jsonStringToObject(dependencyString, PEDependency.class));
 409                             } catch (Exception e) {
 410                                 LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW
 411                                         + "Error while resolving Dependencies: " + e);
 412                             }
 413                         }
 414                     }
 415                 }
 416             }
 417             if (userControllerName != null) {
 418                 // Adding custom dependencies here.
 419                 ArrayList<Object> values = groupMap.get(userControllerName);
 420                 values.add(userDependencies);
 421                 groupMap.put(userControllerName, values);
 422                 selectedName = userControllerName;
 423             }
 424         }
 425         // If no Match then pick Default.
 426         if (selectedName == null) {
 427             selectedName = defaultName;
 428         }
 429         if (groupMap.containsKey(selectedName)) {
 430             // If the key is not got as parameters set by the user, setting the default value for kSessionName as
 431             // closedLoop
 432             if (kSessionName == null) {
 433                 if (selectedName == defaultName) {
 434                     kSessionName = "closedloop";
 435                 } else {
 436                     kSessionName = "closedloop-" + selectedName;
 437                 }
 438             }
 439             // create directories if missing.
 440             manageProject(selectedName, kSessionName, name, rule);
 441             addModifiedGroup(selectedName, "update"); // Will check for Create Later after generating the Pom.
 442         }
 443     }
 444
 445     private void syncGroupInfo() {
 446         // Sync DB to JMemory.
 447         EntityTransaction et = em.getTransaction();
 448         et.begin();
 449         Query query = em.createQuery("select b from BRMSGroupInfo AS b");
 450         List<?> bList = query.getResultList();
 451         if (bList.size() != groupMap.size()) {
 452             for (Object value : bList) {
 453                 BRMSGroupInfo brmsGroupInfo = (BRMSGroupInfo) value;
 454                 PEDependency dependency = new PEDependency();
 455                 dependency.setArtifactId(brmsGroupInfo.getArtifactId());
 456                 dependency.setGroupId(brmsGroupInfo.getGroupId());
 457                 dependency.setVersion(brmsGroupInfo.getVersion());
 458                 ArrayList<Object> values = new ArrayList<>();
 459                 values.add(dependency);
 460                 groupMap.put(brmsGroupInfo.getControllerName(), values);
 461             }
 462         }
 463         query = em.createQuery("select g from BRMSPolicyInfo AS g");
 464         bList = query.getResultList();
 465         if (bList.size() != policyMap.size()) {
 466             for (Object value : bList) {
 467                 BRMSPolicyInfo brmsPolicyInfo = (BRMSPolicyInfo) value;
 468                 policyMap.put(brmsPolicyInfo.getPolicyName(), brmsPolicyInfo.getControllerName().getControllerName());
 469             }
 470         }
 471         et.commit();
 472         LOGGER.info("Updated Local Memory values with values from database.");
 473     }
 474
 475     private void manageProject(String selectedName, String kSessionName, String name, String rule) {
 476         // Check if the Project is in Sync. If not get the latest Version.
 477         syncProject(selectedName);
 478         createProject(PROJECTSLOCATION + File.separator + getArtifactID(selectedName) + File.separator + "src"
 479                 + File.separator + "main" + File.separator + "resources", kSessionName);
 480         copyDataToFile(PROJECTSLOCATION + File.separator + getArtifactID(selectedName) + File.separator + "src"
 481                 + File.separator + "main" + File.separator + "resources" + File.separator + "rules" + File.separator
 482                 + name + ".drl", rule);
 483         addToPolicy(name, selectedName);
 484     }
 485
 486     /*
 487      * Add Policy to JMemory and DataBase.
 488      */
 489     private void addToPolicy(String policyName, String controllerName) {
 490         policyMap.put(policyName, controllerName);
 491         EntityTransaction et = em.getTransaction();
 492         et.begin();
 493         Query query = em.createQuery("select b from BRMSPolicyInfo as b where b.policyName = :pn");
 494         query.setParameter("pn", policyName);
 495         List<?> pList = query.getResultList();
 496         boolean createFlag = false;
 497         BRMSPolicyInfo brmsPolicyInfo = new BRMSPolicyInfo();
 498         if (pList.size() > 0) {
 499             // Already exists.
 500             brmsPolicyInfo = (BRMSPolicyInfo) pList.get(0);
 501             if (!brmsPolicyInfo.getControllerName().getControllerName().equals(controllerName)) {
 502                 createFlag = true;
 503             }
 504         } else {
 505             createFlag = true;
 506         }
 507         if (createFlag) {
 508             query = em.createQuery("select b from BRMSGroupInfo as b where b.controllerName = :cn");
 509             query.setParameter("cn", controllerName);
 510             List<?> bList = query.getResultList();
 511             BRMSGroupInfo brmsGroupInfo = new BRMSGroupInfo();
 512             if (bList.size() > 0) {
 513                 brmsGroupInfo = (BRMSGroupInfo) bList.get(0);
 514             }
 515             brmsPolicyInfo.setPolicyName(policyName);
 516             brmsPolicyInfo.setControllerName(brmsGroupInfo);
 517             em.persist(brmsPolicyInfo);
 518             em.flush();
 519         }
 520         et.commit();
 521     }
 522
 523     private void syncProject(String selectedName) {
 524         boolean projectExists = checkProject(selectedName);
 525         if (projectExists) {
 526             String version = null;
 527             version = getVersion(selectedName);
 528             if (version == null) {
 529                 LOGGER.error("Error getting local version for the given Controller Name:" + selectedName
 530                         + " going with Default value");
 531                 version = "0.1.0";
 532             }
 533             String nextVersion = incrementVersion(version);
 534             boolean outOfSync = checkRemoteSync(selectedName, nextVersion);
 535             if (!outOfSync) {
 536                 return;
 537             }
 538         }
 539         // We are out of Sync or Project is not Present.
 540         downloadProject(selectedName);
 541     }
 542
 543     private void downloadProject(String selectedName) {
 544         NexusArtifact artifact = getLatestArtifactFromNexus(selectedName);
 545         if (artifact == null)
 546             return;
 547         String dirName = getDirectoryName(selectedName);
 548         URL website;
 549         String fileName = "rule.jar";
 550         try {
 551             website = new URL(artifact.getResourceURI());
 552             ReadableByteChannel rbc = Channels.newChannel(website.openStream());
 553             FileOutputStream fos = new FileOutputStream(fileName);
 554             fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
 555             fos.close();
 556             extractJar(fileName, dirName);
 557             new File(fileName).delete();
 558         } catch (IOException e) {
 559             LOGGER.error("Error while downloading the project to File System. " + e.getMessage(), e);
 560         }
 561     }
 562
 563     private void extractJar(String jarFileName, String artifactId) throws IOException {
 564         JarFile jar = new JarFile(jarFileName);
 565         Enumeration<?> enumEntries = jar.entries();
 566         while (enumEntries.hasMoreElements()) {
 567             JarEntry file = (JarEntry) enumEntries.nextElement();
 568             File f = null;
 569             String fileName = file.getName().substring(file.getName().lastIndexOf("/") + 1);
 570             if (file.getName().endsWith(".drl")) {
 571                 String path = PROJECTSLOCATION + File.separator + artifactId + File.separator + "src" + File.separator
 572                         + "main" + File.separator + "resources" + File.separator + "rules";
 573                 new File(path).mkdirs();
 574                 if (syncFlag && policyMap.containsKey(fileName.replace(".drl", ""))) {
 575                     f = new File(path + File.separator + fileName);
 576                 } else {
 577                     f = new File(path + File.separator + fileName);
 578                 }
 579             } else if (file.getName().endsWith("pom.xml")) {
 580                 String path = PROJECTSLOCATION + File.separator + artifactId;
 581                 new File(path).mkdirs();
 582                 f = new File(path + File.separator + fileName);
 583             } else if (file.getName().endsWith("kmodule.xml")) {
 584                 String path = PROJECTSLOCATION + File.separator + artifactId + File.separator + "src" + File.separator
 585                         + "main" + File.separator + "resources" + File.separator + "META-INF";
 586                 new File(path).mkdirs();
 587                 f = new File(path + File.separator + fileName);
 588             }
 589             if (f != null) {
 590                 InputStream is = jar.getInputStream(file);
 591                 FileOutputStream fos = new FileOutputStream(f);
 592                 while (is.available() > 0) {
 593                     fos.write(is.read());
 594                 }
 595                 fos.close();
 596                 is.close();
 597                 f = null;
 598                 LOGGER.info(fileName + " Created..");
 599             }
 600         }
 601         jar.close();
 602     }
 603
 604     private NexusArtifact getLatestArtifactFromNexus(String selectedName) {
 605         List<NexusArtifact> artifacts = getArtifactFromNexus(selectedName, null);
 606         int bigNum = 0;
 607         int smallNum = 0;
 608         NexusArtifact result = null;
 609         for (NexusArtifact artifact : artifacts) {
 610             int majorVal = Integer.parseInt(artifact.getVersion().substring(0, artifact.getVersion().indexOf(".")));
 611             int minorVal = Integer.parseInt(artifact.getVersion().substring(artifact.getVersion().indexOf(".") + 1,
 612                     artifact.getVersion().lastIndexOf(".")));
 613             if (majorVal > bigNum) {
 614                 bigNum = majorVal;
 615                 smallNum = minorVal;
 616             }
 617             if ((bigNum == majorVal) && (minorVal > smallNum)) {
 618                 smallNum = minorVal;
 619             }
 620             if (bigNum == majorVal && minorVal == smallNum) {
 621                 result = artifact;
 622             }
 623         }
 624         return additionalNexusLatestCheck(selectedName, result);
 625     }
 626
 627     // Additional Check due to Limitations from Nexus API to check if the artifact is the latest.
 628     private NexusArtifact additionalNexusLatestCheck(String selectedName, NexusArtifact result) {
 629         String nextVersion = incrementVersion(result.getVersion());
 630         List<NexusArtifact> artifact = getArtifactFromNexus(selectedName, nextVersion);
 631         return artifact.isEmpty() ? result : additionalNexusLatestCheck(selectedName, artifact.get(0));
 632     }
 633
 634     private boolean checkRemoteSync(String selectedName, String version) {
 635         List<NexusArtifact> artifacts = getArtifactFromNexus(selectedName, version);
 636         return (artifacts.size() == 0) ? false : true;
 637     }
 638
 639     private List<NexusArtifact> getArtifactFromNexus(String selectedName, String version) {
 640         final NexusClient client = new NexusRestClient();
 641         int i = 0;
 642         boolean flag = false;
 643         while (i < repURLs.size()) {
 644             try {
 645                 String repURL = repURLs.get(0);
 646                 client.connect(repURL.substring(0, repURL.indexOf(repURL.split(":[0-9]+\\/nexus")[1])), repUserName,
 647                         repPassword);
 648                 final NexusArtifact template = new NexusArtifact();
 649                 template.setGroupId(getGroupID(selectedName));
 650                 template.setArtifactId(getArtifactID(selectedName));
 651                 if (version != null) {
 652                     template.setVersion(version);
 653                 }
 654                 List<NexusArtifact> resultList = client.searchByGAV(template);
 655                 if (resultList != null) {
 656                     flag = true;
 657                     return resultList;
 658                 }
 659             } catch (NexusClientException | NexusConnectionException | NullPointerException e) {
 660                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "Connection to remote Nexus has failed. "
 661                         + e.getMessage(), e);
 662             } finally {
 663                 try {
 664                     client.disconnect();
 665                 } catch (NexusClientException | NexusConnectionException e) {
 666                     LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "failed to disconnect Connection from Nexus."
 667                             + e.getMessage(), e);
 668                 }
 669                 if (!flag) {
 670                     Collections.rotate(repURLs, -1);
 671                     i++;
 672                 }
 673             }
 674         }
 675         return new ArrayList<>();
 676     }
 677
 678     private void setVersion(String selectedName) {
 679         String newVersion = "0.1.0";
 680         createFlag = false;
 681         NexusArtifact artifact = getLatestArtifactFromNexus(selectedName);
 682         if (artifact != null) {
 683             newVersion = incrementVersion(artifact.getVersion());
 684         }
 685         if (newVersion.equals("0.1.0")) {
 686             createFlag = true;
 687         }
 688         setVersion(newVersion, selectedName);
 689         LOGGER.info("Controller: " + selectedName + "is on version: " + newVersion);
 690     }
 691
 692     private String incrementVersion(String version) {
 693         int majorVal = Integer.parseInt(version.substring(0, version.indexOf(".")));
 694         int minorVal = Integer.parseInt(version.substring(version.indexOf(".") + 1, version.lastIndexOf(".")));
 695         if (minorVal >= 9) {
 696             majorVal += 1;
 697             minorVal = 0;
 698         } else {
 699             minorVal += 1;
 700         }
 701         return majorVal + "." + minorVal + version.substring(version.lastIndexOf("."));
 702     }
 703
 704     private boolean checkProject(String selectedName) {
 705         return new File(PROJECTSLOCATION + File.separator + getDirectoryName(selectedName)).exists();
 706     }
 707
 708     private String getDirectoryName(String selectedName) {
 709         return getArtifactID(selectedName);
 710     }
 711
 712     /**
 713      * Will Push policies to the PolicyRepo.
 714      *
 715      * @param notificationType
 716      *            <String> type of notification Type.
 717      * @throws PolicyException
 718      */
 719     public void pushRules() throws PolicyException {
 720         // Check how many groups have been updated.
 721         // Invoke their Maven process.
 722         try {
 723             im.startTransaction();
 724         } catch (AdministrativeStateException e) {
 725             LOGGER.error("Error while starting Transaction " + e);
 726         } catch (Exception e) {
 727             LOGGER.error("Error while starting Transaction " + e);
 728         }
 729         if (!modifiedGroups.isEmpty()) {
 730             Boolean flag = false;
 731             for (String group : modifiedGroups.keySet()) {
 732                 InvocationResult result = null;
 733                 try {
 734                     InvocationRequest request = new DefaultInvocationRequest();
 735                     setVersion(group);
 736                     createPom(group);
 737                     request.setPomFile(new File(
 738                             PROJECTSLOCATION + File.separator + getArtifactID(group) + File.separator + "pom.xml"));
 739                     request.setGoals(Arrays.asList(GOALS));
 740                     Invoker invoker = new DefaultInvoker();
 741                     result = invoker.execute(request);
 742                     if (result.getExecutionException() != null) {
 743                         LOGGER.error(result.getExecutionException());
 744                     } else if (result.getExitCode() != 0) {
 745                         LOGGER.error("Maven Invocation failure..!");
 746                     }
 747                 } catch (Exception e) {
 748                     LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Maven Invocation issue for "
 749                             + getArtifactID(group) + e.getMessage(), e);
 750                 }
 751                 if (result != null && result.getExitCode() == 0) {
 752                     LOGGER.info("Build Completed..!");
 753                     if (createFlag) {
 754                         addNotification(group, "create");
 755                     } else {
 756                         addNotification(group, modifiedGroups.get(group));
 757                     }
 758                     flag = true;
 759                 } else {
 760                     throw new PolicyException(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Maven Invocation failure!");
 761                 }
 762             }
 763             if (flag) {
 764                 sendNotification(controllers);
 765             }
 766         }
 767         if (im != null) {
 768             im.endTransaction();
 769         }
 770     }
 771
 772     /**
 773      * Removes a Rule from Rule Projects.
 774      */
 775     public void removeRule(String name) {
 776         String controllerName = getGroupName(name);
 777         if (controllerName == null) {
 778             LOGGER.info("Error finding the controllerName for the given Policy: " + name);
 779             return;
 780         }
 781         syncProject(controllerName);
 782         getNameAndSetRemove(controllerName, name);
 783     }
 784
 785     private String getGroupName(String name) {
 786         if (policyMap.containsKey(name)) {
 787             return policyMap.get(name);
 788         } else {
 789             syncGroupInfo();
 790             return (policyMap.containsKey(name)) ? policyMap.get(name) : null;
 791         }
 792     }
 793
 794     private void addModifiedGroup(String controllerName, String operation) {
 795         if (controllerName != null) {
 796             modifiedGroups.put(controllerName, operation);
 797         }
 798     }
 799
 800     private void addNotification(String controllerName, String operation) {
 801         ControllerPOJO controllerPOJO = new ControllerPOJO();
 802         controllerPOJO.setName(controllerName);
 803         controllerPOJO.setOperation(operation);
 804         HashMap<String, String> drools = new HashMap<>();
 805         drools.put("groupId", getGroupID(controllerName));
 806         drools.put("artifactId", getArtifactID(controllerName));
 807         drools.put("version", getVersion(controllerName));
 808         controllerPOJO.setDrools(drools);
 809         controllers.add(controllerPOJO);
 810         try {
 811             LOGGER.debug("Notification added: " + PolicyUtils.objectToJsonString(controllerPOJO));
 812         } catch (JsonProcessingException e) {
 813             LOGGER.error(MessageCodes.ERROR_SCHEMA_INVALID + "Json Processing Error " + e);
 814         }
 815     }
 816
 817     private void removedRuleModifiedGroup(String controllerName) {
 818         // This will be sending Notification to PDPD directly to Lock
 819         ControllerPOJO controllerPOJO = new ControllerPOJO();
 820         controllerPOJO.setName(controllerName);
 821         controllerPOJO.setOperation("lock");
 822         List<ControllerPOJO> controllers = new ArrayList<>();
 823         controllers.add(controllerPOJO);
 824         sendNotification(controllers);
 825     }
 826
 827     private void sendNotification(List<ControllerPOJO> controllers) {
 828         NotificationPOJO notification = new NotificationPOJO();
 829         String requestId = UUID.randomUUID().toString();
 830         LOGGER.info("Generating notification RequestID : " + requestId);
 831         notification.setRequestID(requestId);
 832         notification.setEntity("controller");
 833         notification.setControllers(controllers);
 834         try {
 835             String notificationJson = PolicyUtils.objectToJsonString(notification);
 836             LOGGER.info("Sending Notification :\n" + notificationJson);
 837             sendMessage(notificationJson);
 838         } catch (Exception e) {
 839             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while sending notification to PDP-D "
 840                     + e.getMessage(), e);
 841         }
 842     }
 843
 844     private void sendMessage(String message) throws IOException, GeneralSecurityException, InterruptedException {
 845
 846         if ("dmaap".equalsIgnoreCase(notificationType)) {
 847             // Sending Message through DMaaP Message Router
 848             LOGGER.debug("DMAAP Publishing Message");
 849
 850             publisher.send("MyPartitionKey", message);
 851
 852             LOGGER.debug("Message Published on DMaaP :" + dmaapList.get(0) + "for Topic: " + pubTopic);
 853
 854             Thread.sleep(dmaapDelay);
 855             publisher.close();
 856         } else {
 857             // Sending Message through UEB interface.
 858             LOGGER.debug("UEB Publishing Message");
 859
 860             CambriaBatchingPublisher pub = pubBuilder.build();
 861             pub.send("MyPartitionKey", message);
 862
 863             final List<?> stuck = pub.close(uebDelay, TimeUnit.SECONDS);
 864             if (stuck.size() > 0) {
 865                 LOGGER.error(stuck.size() + " messages unsent");
 866             } else {
 867                 LOGGER.debug("Clean exit; Message Published on UEB : " + uebList + "for Topic: " + pubTopic);
 868             }
 869         }
 870
 871     }
 872
 873     private void createPom(String name) {
 874         Model model = new Model();
 875         model.setModelVersion("4.0.0");
 876         model.setGroupId(getGroupID(name));
 877         model.setArtifactId(getArtifactID(name));
 878         model.setVersion(getVersion(name));
 879         model.setName(name);
 880         DistributionManagement distributionManagement = new DistributionManagement();
 881         DeploymentRepository repository = new DeploymentRepository();
 882         repository.setId(repID);
 883         repository.setName(repName);
 884         repository.setUrl(repURLs.get(0));
 885         distributionManagement.setRepository(repository);
 886         model.setDistributionManagement(distributionManagement);
 887         // Dependency Management goes here.
 888         List<Dependency> dependencyList = new ArrayList<>();
 889         if (groupMap.get(name).size() > 1) {
 890             @SuppressWarnings("unchecked")
 891             ArrayList<PEDependency> dependencies = (ArrayList<PEDependency>) groupMap.get(name).get(1);
 892             for (PEDependency dependency : dependencies) {
 893                 dependencyList.add(dependency.getDependency());
 894             }
 895         } else {
 896             // Add Default dependencies.
 897             dependencyList = getDependencies(name);
 898         }
 899         model.setDependencies(dependencyList);
 900         Writer writer = null;
 901         try {
 902             writer = WriterFactory.newXmlWriter(
 903                     new File(PROJECTSLOCATION + File.separator + getArtifactID(name) + File.separator + "pom.xml"));
 904             MavenXpp3Writer pomWriter = new MavenXpp3Writer();
 905             pomWriter.write(writer, model);
 906         } catch (Exception e) {
 907             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while creating POM for " + getArtifactID(name)
 908                     + e.getMessage(), e);
 909         } finally {
 910             IOUtil.close(writer);
 911         }
 912     }
 913
 914     private List<Dependency> getDependencies(String controllerName) {
 915         // Read the Dependency Information from property file.
 916         Path file = Paths.get(DEPENDENCY_FILE);
 917         if (!Files.notExists(file)) {
 918             try {
 919                 String dependencyJSON = new String(Files.readAllBytes(file), StandardCharsets.UTF_8);
 920                 DependencyInfo dependencyInfo = PolicyUtils.jsonStringToObject(dependencyJSON, DependencyInfo.class);
 921                 String controller = "default";
 922                 if (dependencyInfo.getDependencies().containsKey(controllerName)) {
 923                     controller = controllerName;
 924                 }
 925                 List<Dependency> dependencyList = new ArrayList<>();
 926                 for (PEDependency dependency : dependencyInfo.getDependencies().get(controller)) {
 927                     dependencyList.add(dependency.getDependency());
 928                 }
 929                 return dependencyList;
 930             } catch (IOException | NullPointerException e) {
 931                 LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW
 932                         + "Error while getting dependecy Information for controller: " + controllerName
 933                         + e.getMessage(), e);
 934             }
 935         }
 936         return defaultDependencies(controllerName);
 937     }
 938
 939     // Default Dependency Section. Can be changed as required.
 940     public List<Dependency> defaultDependencies(String controllerName) {
 941
 942         List<Dependency> dependencyList = new ArrayList<>();
 943         String version = StringEscapeUtils.escapeJava(brmsdependencyversion);
 944
 945         Dependency demoDependency = new Dependency();
 946         demoDependency.setGroupId("org.onap.policy.drools-applications");
 947         demoDependency.setArtifactId("demo");
 948         demoDependency.setVersion(version);
 949         dependencyList.add(demoDependency);
 950
 951         Dependency controlloopDependency = new Dependency();
 952         controlloopDependency.setGroupId("org.onap.policy.drools-applications");
 953         controlloopDependency.setArtifactId("events");
 954         controlloopDependency.setVersion(version);
 955         dependencyList.add(controlloopDependency);
 956
 957         Dependency restDependency = new Dependency();
 958         restDependency.setGroupId("org.onap.policy.drools-applications");
 959         restDependency.setArtifactId("rest");
 960         restDependency.setVersion(version);
 961         dependencyList.add(restDependency);
 962
 963         Dependency appcDependency = new Dependency();
 964         appcDependency.setGroupId("org.onap.policy.drools-applications");
 965         appcDependency.setArtifactId("appc");
 966         appcDependency.setVersion(version);
 967         dependencyList.add(appcDependency);
 968
 969         Dependency aaiDependency = new Dependency();
 970         aaiDependency.setGroupId("org.onap.policy.drools-applications");
 971         aaiDependency.setArtifactId("aai");
 972         aaiDependency.setVersion(version);
 973         dependencyList.add(aaiDependency);
 974
 975         Dependency msoDependency = new Dependency();
 976         msoDependency.setGroupId("org.onap.policy.drools-applications");
 977         msoDependency.setArtifactId("mso");
 978         msoDependency.setVersion(version);
 979         dependencyList.add(msoDependency);
 980
 981         Dependency trafficgeneratorDependency = new Dependency();
 982         trafficgeneratorDependency.setGroupId("org.onap.policy.drools-applications");
 983         trafficgeneratorDependency.setArtifactId("trafficgenerator");
 984         trafficgeneratorDependency.setVersion(version);
 985         dependencyList.add(trafficgeneratorDependency);
 986         return dependencyList;
 987     }
 988
 989     private void createProject(String path, String ksessionName) {
 990         new File(path + File.separator + "rules").mkdirs();
 991         new File(path + File.separator + "META-INF").mkdirs();
 992         if (!Files.exists(Paths.get(path + File.separator + "META-INF" + File.separator + "kmodule.xml"))) {
 993             // Hard coding XML for PDP Drools to accept our Rules.
 994             String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + "\n"
 995                     + "<kmodule xmlns=\"http://jboss.org/kie/6.0.0/kmodule\">" + "\n"
 996                     + "<kbase name=\"rules\" packages=\"rules\">" + "\n" + "<ksession name=\"" + ksessionName + "\"/>"
 997                     + "\n" + "</kbase></kmodule>";
 998             copyDataToFile(path + File.separator + "META-INF" + File.separator + "kmodule.xml", xml);
 999         }
1000     }
1001
1002     private void copyDataToFile(String file, String rule) {
1003         try {
1004             FileUtils.writeStringToFile(new File(file), rule);
1005         } catch (Exception e) {
1006             LOGGER.error(
1007                     XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while creating Rule for " + file + e.getMessage(),
1008                     e);
1009         }
1010     }
1011
1012     private void readGroups(Properties config) throws PolicyException {
1013         String[] groupNames = null;
1014         if (config.getProperty("groupNames").contains(",")) {
1015             groupNames = config.getProperty("groupNames").replaceAll(" ", "").split(",");
1016         } else {
1017             groupNames = new String[] { config.getProperty("groupNames").replaceAll(" ", "") };
1018         }
1019         if (groupNames == null || groupNames.length == 0) {
1020             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE
1021                     + "groupNames property is missing or empty from the property file ");
1022             throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE
1023                     + "groupNames property is missing or empty from the property file ");
1024         }
1025         groupMap = new HashMap<>();
1026         for (int counter = 0; counter < groupNames.length; counter++) {
1027             String name = groupNames[counter];
1028             String groupID = config.getProperty(name + ".groupID");
1029             if (groupID == null) {
1030                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1031                         + ".groupID property is missing from the property file ");
1032                 throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1033                         + ".groupID property is missing from the property file ");
1034             }
1035             String artifactID = config.getProperty(name + ".artifactID");
1036             if (artifactID == null) {
1037                 LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1038                         + ".artifactID property is missing from the property file ");
1039                 throw new PolicyException(XACMLErrorConstants.ERROR_DATA_ISSUE + name
1040                         + ".artifactID property is missing from the property file ");
1041             }
1042             PEDependency dependency = new PEDependency();
1043             dependency.setArtifactId(artifactID);
1044             dependency.setGroupId(groupID);
1045             // Add to list if we got all
1046             addToGroup(name, dependency);
1047         }
1048     }
1049
1050     private void addToGroup(String name, PEDependency dependency) {
1051         ArrayList<Object> values = new ArrayList<>();
1052         values.add(dependency);
1053         groupMap.put(name, values);
1054         EntityTransaction et = em.getTransaction();
1055         et.begin();
1056         Query query = em.createQuery("select b from BRMSGroupInfo as b where b.controllerName = :cn");
1057         query.setParameter("cn", name);
1058         List<?> groupList = query.getResultList();
1059         BRMSGroupInfo brmsGroupInfo = null;
1060         if (groupList.size() > 0) {
1061             LOGGER.info("Controller name already Existing in DB. Will be updating the DB Values" + name);
1062             brmsGroupInfo = (BRMSGroupInfo) groupList.get(0);
1063         }
1064         if (brmsGroupInfo == null) {
1065             brmsGroupInfo = new BRMSGroupInfo();
1066         }
1067         brmsGroupInfo.setControllerName(name);
1068         brmsGroupInfo.setGroupId(dependency.getGroupId());
1069         brmsGroupInfo.setArtifactId(dependency.getArtifactId());
1070         brmsGroupInfo.setVersion(dependency.getVersion());
1071         em.persist(brmsGroupInfo);
1072         em.flush();
1073         et.commit();
1074     }
1075
1076     private String getArtifactID(String name) {
1077         return ((PEDependency) groupMap.get(name).get(0)).getArtifactId();
1078     }
1079
1080     private String getGroupID(String name) {
1081         return ((PEDependency) groupMap.get(name).get(0)).getGroupId();
1082     }
1083
1084     private String getVersion(String name) {
1085         return ((PEDependency) groupMap.get(name).get(0)).getVersion();
1086     }
1087
1088     private void getNameAndSetRemove(String controllerName, String policyName) {
1089         String artifactName = getArtifactID(controllerName);
1090         String ruleFolder = PROJECTSLOCATION + File.separator + artifactName + File.separator + "src" + File.separator
1091                 + "main" + File.separator + "resources" + File.separator + "rules";
1092         File file = new File(ruleFolder + File.separator + policyName + ".drl");
1093         if (file.delete()) {
1094             LOGGER.info("Deleted File.. " + file.getAbsolutePath());
1095             removePolicyFromGroup(policyName, controllerName);
1096         }
1097         if (new File(ruleFolder).listFiles().length == 0) {
1098             removedRuleModifiedGroup(controllerName);
1099         } else {
1100             // This is an update in terms of PDPD.
1101             addModifiedGroup(controllerName, "update");
1102         }
1103     }
1104
1105     // Removes Policy from Memory and Database.
1106     private void removePolicyFromGroup(String policyName, String controllerName) {
1107         policyMap.remove(policyName);
1108         EntityTransaction et = em.getTransaction();
1109         et.begin();
1110         Query query = em.createQuery("select b from BRMSPolicyInfo as b where b.policyName = :pn");
1111         query.setParameter("pn", policyName);
1112         List<?> pList = query.getResultList();
1113         BRMSPolicyInfo brmsPolicyInfo = new BRMSPolicyInfo();
1114         if (pList.size() > 0) {
1115             // Already exists.
1116             brmsPolicyInfo = (BRMSPolicyInfo) pList.get(0);
1117             if (brmsPolicyInfo.getControllerName().getControllerName().equals(controllerName)) {
1118                 em.remove(brmsPolicyInfo);
1119                 em.flush();
1120             }
1121         }
1122         et.commit();
1123     }
1124
1125     private void setVersion(String newVersion, String controllerName) {
1126         PEDependency userController = (PEDependency) groupMap.get(controllerName).get(0);
1127         userController.setVersion(newVersion);
1128         groupMap.get(controllerName).set(0, userController);
1129     }
1130
1131     // Return BackUpMonitor
1132     public static BackUpMonitor getBackUpMonitor() {
1133         return bm;
1134     }
1135
1136     public void rotateURLs() {
1137         if (repURLs != null) {
1138             Collections.rotate(repURLs, -1);
1139         }
1140     }
1141
1142     public int URLListSize() {
1143         if (repURLs != null) {
1144             return repURLs.size();
1145         } else
1146             return 0;
1147     }
1148 }