src/main/java/org/onap/music/rest/RestMusicLocksAPI.java

   1 /*
   2  * ============LICENSE_START==========================================
   3  * org.onap.music
   4  * ===================================================================
   5  *  Copyright (c) 2017 AT&T Intellectual Property
   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  *
  19  * ============LICENSE_END=============================================
  20  * ====================================================================
  21  */
  22 package org.onap.music.rest;
  23
  24 import java.util.Map;
  25
  26 import javax.ws.rs.Consumes;
  27 import javax.ws.rs.DELETE;
  28 import javax.ws.rs.GET;
  29 import javax.ws.rs.HeaderParam;
  30 import javax.ws.rs.POST;
  31 import javax.ws.rs.Path;
  32 import javax.ws.rs.PathParam;
  33 import javax.ws.rs.Produces;
  34 import javax.ws.rs.core.MediaType;
  35 import javax.ws.rs.core.Response;
  36 import javax.ws.rs.core.Response.ResponseBuilder;
  37 import javax.ws.rs.core.Response.Status;
  38 import org.onap.music.datastore.jsonobjects.JsonLeasedLock;
  39 import org.onap.music.eelf.logging.EELFLoggerDelegate;
  40 import org.onap.music.eelf.logging.format.AppMessages;
  41 import org.onap.music.eelf.logging.format.ErrorSeverity;
  42 import org.onap.music.eelf.logging.format.ErrorTypes;
  43 import org.onap.music.lockingservice.MusicLockState;
  44 import org.onap.music.main.MusicCore;
  45 import org.onap.music.main.MusicUtil;
  46 import org.onap.music.main.ResultType;
  47 import org.onap.music.main.ReturnType;
  48 import org.onap.music.response.jsonobjects.JsonResponse;
  49
  50 import io.swagger.annotations.Api;
  51 import io.swagger.annotations.ApiOperation;
  52 import io.swagger.annotations.ApiParam;
  53
  54
  55 @Path("/v2/locks/")
  56 @Api(value="Lock Api")
  57 public class RestMusicLocksAPI {
  58
  59     private EELFLoggerDelegate logger =EELFLoggerDelegate.getLogger(RestMusicLocksAPI.class);
  60     private static final String XMINORVERSION = "X-minorVersion";
  61     private static final String XPATCHVERSION = "X-patchVersion";
  62     private static final String VERSION = "v2";
  63
  64     /**
  65      * Puts the requesting process in the q for this lock. The corresponding
  66      * node will be created in zookeeper if it did not already exist
  67      *
  68      * @param lockName
  69      * @return
  70      * @throws Exception
  71      */
  72     @POST
  73     @Path("/create/{lockname}")
  74     @ApiOperation(value = "Create Lock",
  75         notes = "Puts the requesting process in the q for this lock." +
  76         " The corresponding node will be created in zookeeper if it did not already exist." +
  77         " Lock Name is the \"key\" of the form keyspaceName.tableName.rowId",
  78         response = Map.class)
  79     @Produces(MediaType.APPLICATION_JSON)
  80     public Response createLockReference(
  81             @ApiParam(value="Lock Name",required=true) @PathParam("lockname") String lockName,
  82             @ApiParam(value = "Minor Version",required = false) @HeaderParam(XMINORVERSION) String minorVersion,
  83             @ApiParam(value = "Patch Version",required = false) @HeaderParam(XPATCHVERSION) String patchVersion,
  84             @ApiParam(value = "AID", required = true) @HeaderParam("aid") String aid,
  85             @ApiParam(value = "Application namespace",
  86                             required = true) @HeaderParam("ns") String ns,
  87             @ApiParam(value = "userId",
  88                             required = true) @HeaderParam("userId") String userId,
  89             @ApiParam(value = "Password",
  90                             required = true) @HeaderParam("password") String password) throws Exception{
  91         ResponseBuilder response = MusicUtil.buildVersionResponse(VERSION, minorVersion, patchVersion);
  92         Map<String, Object> resultMap = MusicCore.validateLock(lockName);
  93         if (resultMap.containsKey("Exception")) {
  94             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.MISSINGINFO  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
  95             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
  96         }
  97         String keyspaceName = (String) resultMap.get("keyspace");
  98         resultMap.remove("keyspace");
  99         resultMap = MusicCore.autheticateUser(ns, userId, password, keyspaceName, aid,
 100                 "createLockReference");
 101         if (resultMap.containsKey("aid"))
 102             resultMap.remove("aid");
 103         if (!resultMap.isEmpty()) {
 104             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.MISSINGINFO  ,ErrorSeverity.CRITICAL, ErrorTypes.AUTHENTICATIONERROR);
 105             return response.status(Status.UNAUTHORIZED).entity(resultMap).build();
 106         }
 107         ResultType status = ResultType.SUCCESS;
 108         String lockId = MusicCore.createLockReference(lockName);
 109
 110         if (lockId == null) {
 111             status = ResultType.FAILURE;
 112             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.LOCKINGERROR  ,ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR);
 113             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(status).setError("Lock Id is null").toMap()).build();
 114         }
 115         return response.status(Status.OK).entity(new JsonResponse(status).setLock(lockId).toMap()).build();
 116     }
 117
 118     /**
 119      *
 120      * Checks if the node is in the top of the queue and hence acquires the lock
 121      *
 122      * @param lockId
 123      * @return
 124      * @throws Exception
 125      */
 126     @GET
 127     @Path("/acquire/{lockreference}")
 128     @ApiOperation(value = "Aquire Lock",
 129         notes = "Checks if the node is in the top of the queue and hence acquires the lock",
 130         response = Map.class)
 131     @Produces(MediaType.APPLICATION_JSON)
 132     public Response accquireLock(
 133             @ApiParam(value="Lock Reference",required=true) @PathParam("lockreference") String lockId,
 134             @ApiParam(value = "Minor Version",required = false) @HeaderParam(XMINORVERSION) String minorVersion,
 135             @ApiParam(value = "Patch Version",required = false) @HeaderParam(XPATCHVERSION) String patchVersion,
 136             @ApiParam(value = "AID", required = true) @HeaderParam("aid") String aid,
 137             @ApiParam(value = "Application namespace",
 138                             required = true) @HeaderParam("ns") String ns,
 139             @ApiParam(value = "userId",
 140                             required = true) @HeaderParam("userId") String userId,
 141             @ApiParam(value = "Password",
 142                             required = true) @HeaderParam("password") String password) throws Exception{
 143         ResponseBuilder response = MusicUtil.buildVersionResponse(VERSION, minorVersion, patchVersion);
 144         Map<String, Object> resultMap = MusicCore.validateLock(lockId);
 145         if (resultMap.containsKey("Exception")) {
 146             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 147             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 148         }
 149         String keyspaceName = (String) resultMap.get("keyspace");
 150         resultMap.remove("keyspace");
 151         resultMap = MusicCore.autheticateUser(ns, userId, password, keyspaceName, aid,
 152                 "accquireLock");
 153         if (resultMap.containsKey("aid"))
 154             resultMap.remove("aid");
 155         if (!resultMap.isEmpty()) {
 156             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 157             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 158         }
 159         try {
 160             String lockName = lockId.substring(lockId.indexOf('$')+1, lockId.lastIndexOf('$'));
 161             ReturnType lockStatus = MusicCore.acquireLock(lockName,lockId);
 162             if ( lockStatus.getResult().equals(ResultType.SUCCESS)) {
 163                 response.status(Status.OK);
 164             } else {
 165                 response.status(Status.BAD_REQUEST);
 166             }
 167             return response.entity(new JsonResponse(lockStatus.getResult()).setLock(lockId).setMessage(lockStatus.getMessage()).toMap()).build();
 168         } catch (Exception e) {
 169             logger.error(EELFLoggerDelegate.errorLogger,AppMessages.INVALIDLOCK + lockId, ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR);
 170             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError("Unable to aquire lock").toMap()).build();
 171         }
 172     }
 173
 174
 175
 176
 177     @POST
 178     @Path("/acquire-with-lease/{lockreference}")
 179     @ApiOperation(value = "Aquire Lock with Lease", response = Map.class)
 180     @Consumes(MediaType.APPLICATION_JSON)
 181     @Produces(MediaType.APPLICATION_JSON)
 182     public Response accquireLockWithLease(JsonLeasedLock lockObj,
 183             @ApiParam(value="Lock Reference",required=true) @PathParam("lockreference") String lockId,
 184             @ApiParam(value = "Minor Version",required = false) @HeaderParam(XMINORVERSION) String minorVersion,
 185             @ApiParam(value = "Patch Version",required = false) @HeaderParam(XPATCHVERSION) String patchVersion,
 186             @ApiParam(value = "AID", required = true) @HeaderParam("aid") String aid,
 187             @ApiParam(value = "Application namespace",
 188                             required = true) @HeaderParam("ns") String ns,
 189             @ApiParam(value = "userId",
 190                             required = true) @HeaderParam("userId") String userId,
 191             @ApiParam(value = "Password",
 192                             required = true) @HeaderParam("password") String password) throws Exception{
 193         ResponseBuilder response = MusicUtil.buildVersionResponse(VERSION, minorVersion, patchVersion);
 194         Map<String, Object> resultMap = MusicCore.validateLock(lockId);
 195         if (resultMap.containsKey("Exception")) {
 196             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 197             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 198         }
 199         String keyspaceName = (String) resultMap.get("keyspace");
 200         resultMap.remove("keyspace");
 201         resultMap = MusicCore.autheticateUser(ns, userId, password, keyspaceName, aid,
 202                 "accquireLockWithLease");
 203
 204         if (resultMap.containsKey("aid"))
 205             resultMap.remove("aid");
 206         if (!resultMap.isEmpty()) {
 207             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 208             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 209         }
 210         String lockName = lockId.substring(lockId.indexOf('$')+1, lockId.lastIndexOf('$'));
 211         ReturnType lockLeaseStatus = MusicCore.acquireLockWithLease(lockName, lockId, lockObj.getLeasePeriod());
 212         if ( lockLeaseStatus.getResult().equals(ResultType.SUCCESS)) {
 213             response.status(Status.OK);
 214         } else {
 215             response.status(Status.BAD_REQUEST);
 216         }
 217         return response.entity(new JsonResponse(lockLeaseStatus.getResult()).setLock(lockName)
 218                                     .setMessage(lockLeaseStatus.getMessage())
 219                                     .setLockLease(String.valueOf(lockObj.getLeasePeriod())).toMap()).build();
 220     }
 221
 222
 223     @GET
 224     @Path("/enquire/{lockname}")
 225     @ApiOperation(value = "Get Lock Holder",
 226         notes = "Gets the current Lock Holder",
 227         response = Map.class)
 228     @Produces(MediaType.APPLICATION_JSON)
 229     public Response currentLockHolder(
 230             @ApiParam(value="Lock Name",required=true) @PathParam("lockname") String lockName,
 231             @ApiParam(value = "Minor Version",required = false) @HeaderParam(XMINORVERSION) String minorVersion,
 232             @ApiParam(value = "Patch Version",required = false) @HeaderParam(XPATCHVERSION) String patchVersion,
 233             @ApiParam(value = "AID", required = true) @HeaderParam("aid") String aid,
 234             @ApiParam(value = "Application namespace",
 235                             required = true) @HeaderParam("ns") String ns,
 236             @ApiParam(value = "userId",
 237                             required = true) @HeaderParam("userId") String userId,
 238             @ApiParam(value = "Password",
 239                             required = true) @HeaderParam("password") String password) throws Exception{
 240         ResponseBuilder response = MusicUtil.buildVersionResponse(VERSION, minorVersion, patchVersion);
 241         Map<String, Object> resultMap = MusicCore.validateLock(lockName);
 242         if (resultMap.containsKey("Exception")) {
 243             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 244             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 245         }
 246         String keyspaceName = (String) resultMap.get("keyspace");
 247         resultMap.remove("keyspace");
 248         resultMap = MusicCore.autheticateUser(ns, userId, password, keyspaceName, aid,
 249                 "currentLockHolder");
 250         if (resultMap.containsKey("aid"))
 251             resultMap.remove("aid");
 252         if (!resultMap.isEmpty()) {
 253             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 254             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 255         }
 256         String who = MusicCore.whoseTurnIsIt(lockName);
 257         ResultType status = ResultType.SUCCESS;
 258         String error = "";
 259         if ( who == null ) {
 260             status = ResultType.FAILURE;
 261             error = "There was a problem getting the lock holder";
 262             logger.error(EELFLoggerDelegate.errorLogger,"There was a problem getting the lock holder", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 263             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(status).setError(error).setLock(lockName).setLockHolder(who).toMap()).build();
 264         }
 265         return response.status(Status.OK).entity(new JsonResponse(status).setError(error).setLock(lockName).setLockHolder(who).toMap()).build();
 266     }
 267
 268     @GET
 269     @Path("/{lockname}")
 270     @ApiOperation(value = "Lock State",
 271         notes = "Returns current Lock State and Holder.",
 272         response = Map.class)
 273     @Produces(MediaType.APPLICATION_JSON)
 274     public Response currentLockState(
 275             @ApiParam(value="Lock Name",required=true) @PathParam("lockname") String lockName,
 276             @ApiParam(value = "Minor Version",required = false) @HeaderParam(XMINORVERSION) String minorVersion,
 277             @ApiParam(value = "Patch Version",required = false) @HeaderParam(XPATCHVERSION) String patchVersion,
 278             @ApiParam(value = "AID", required = true) @HeaderParam("aid") String aid,
 279             @ApiParam(value = "Application namespace",
 280                             required = true) @HeaderParam("ns") String ns,
 281             @ApiParam(value = "userId",
 282                             required = true) @HeaderParam("userId") String userId,
 283             @ApiParam(value = "Password",
 284                             required = true) @HeaderParam("password") String password) throws Exception{
 285         ResponseBuilder response = MusicUtil.buildVersionResponse(VERSION, minorVersion, patchVersion);
 286         Map<String, Object> resultMap = MusicCore.validateLock(lockName);
 287         if (resultMap.containsKey("Exception")) {
 288             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 289             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 290         }
 291         String keyspaceName = (String) resultMap.get("keyspace");
 292         resultMap.remove("keyspace");
 293         resultMap = MusicCore.autheticateUser(ns, userId, password, keyspaceName, aid,
 294                 "currentLockState");
 295
 296         if (resultMap.containsKey("aid"))
 297             resultMap.remove("aid");
 298         if (!resultMap.isEmpty()) {
 299             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 300             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 301         }
 302
 303         MusicLockState mls = MusicCore.getMusicLockState(lockName);
 304         Map<String,Object> returnMap = null;
 305         JsonResponse jsonResponse = new JsonResponse(ResultType.FAILURE).setLock(lockName);
 306         if(mls == null) {
 307             jsonResponse.setError("");
 308             jsonResponse.setMessage("No lock object created yet..");
 309             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 310             return response.status(Status.BAD_REQUEST).entity(jsonResponse.toMap()).build();
 311         } else {
 312             jsonResponse.setStatus(ResultType.SUCCESS);
 313             jsonResponse.setLockStatus(mls.getLockStatus());
 314             jsonResponse.setLockHolder(mls.getLockHolder());
 315             return response.status(Status.OK).entity(jsonResponse.toMap()).build();
 316         }
 317     }
 318
 319     /**
 320      *
 321      * deletes the process from the zk queue
 322      *
 323      * @param lockId
 324      * @throws Exception
 325      */
 326     @DELETE
 327     @Path("/release/{lockreference}")
 328     @ApiOperation(value = "Release Lock",
 329         notes = "deletes the process from the zk queue",
 330         response = Map.class)
 331     @Produces(MediaType.APPLICATION_JSON)
 332     public Response unLock(@PathParam("lockreference") String lockId,
 333             @ApiParam(value = "Minor Version",required = false) @HeaderParam(XMINORVERSION) String minorVersion,
 334             @ApiParam(value = "Patch Version",required = false) @HeaderParam(XPATCHVERSION) String patchVersion,
 335             @ApiParam(value = "AID", required = true) @HeaderParam("aid") String aid,
 336             @ApiParam(value = "Application namespace",
 337                             required = true) @HeaderParam("ns") String ns,
 338             @ApiParam(value = "userId",
 339                             required = true) @HeaderParam("userId") String userId,
 340             @ApiParam(value = "Password",
 341                             required = true) @HeaderParam("password") String password) throws Exception{
 342         ResponseBuilder response = MusicUtil.buildVersionResponse(VERSION, minorVersion, patchVersion);
 343         Map<String, Object> resultMap = MusicCore.validateLock(lockId);
 344         if (resultMap.containsKey("Exception")) {
 345             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 346             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 347         }
 348         String keyspaceName = (String) resultMap.get("keyspace");
 349         resultMap.remove("keyspace");
 350         resultMap = MusicCore.autheticateUser(ns, userId, password, keyspaceName, aid,
 351                 "unLock");
 352         if (resultMap.containsKey("aid"))
 353             resultMap.remove("aid");
 354         if (!resultMap.isEmpty()) {
 355             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 356             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 357         }
 358         boolean voluntaryRelease = true;
 359         MusicLockState mls = MusicCore.releaseLock(lockId,voluntaryRelease);
 360         if(mls.getErrorMessage() != null) {
 361             resultMap.put(ResultType.EXCEPTION.getResult(), mls.getErrorMessage());
 362             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 363             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 364         }
 365         Map<String,Object> returnMap = null;
 366         if (mls.getLockStatus() == MusicLockState.LockStatus.UNLOCKED) {
 367             returnMap = new JsonResponse(ResultType.SUCCESS).setLock(lockId)
 368                                 .setLockStatus(mls.getLockStatus()).toMap();
 369             response.status(Status.OK);
 370         }
 371         if (mls.getLockStatus() == MusicLockState.LockStatus.LOCKED) {
 372             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.LOCKINGERROR  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 373             returnMap = new JsonResponse(ResultType.FAILURE).setLock(lockId)
 374                                 .setLockStatus(mls.getLockStatus()).toMap();
 375             response.status(Status.BAD_REQUEST);
 376         }
 377         return response.entity(returnMap).build();
 378     }
 379
 380     /**
 381      *
 382      * @param lockName
 383      * @throws Exception
 384      */
 385     @DELETE
 386     @Path("/delete/{lockname}")
 387     @ApiOperation(value = "Delete Lock", response = Map.class)
 388     @Produces(MediaType.APPLICATION_JSON)
 389     public Response deleteLock(@PathParam("lockname") String lockName,
 390             @ApiParam(value = "Minor Version",required = false) @HeaderParam(XMINORVERSION) String minorVersion,
 391             @ApiParam(value = "Patch Version",required = false) @HeaderParam(XPATCHVERSION) String patchVersion,
 392             @ApiParam(value = "AID", required = true) @HeaderParam("aid") String aid,
 393             @ApiParam(value = "Application namespace",
 394                             required = true) @HeaderParam("ns") String ns,
 395             @ApiParam(value = "userId",
 396                             required = true) @HeaderParam("userId") String userId,
 397             @ApiParam(value = "Password",
 398                             required = true) @HeaderParam("password") String password) throws Exception{
 399         ResponseBuilder response = MusicUtil.buildVersionResponse(VERSION, minorVersion, patchVersion);
 400         Map<String, Object> resultMap = MusicCore.validateLock(lockName);
 401         if (resultMap.containsKey("Exception")) {
 402             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.UNKNOWNERROR  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 403             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 404         }
 405         String keyspaceName = (String) resultMap.get("keyspace");
 406         resultMap.remove("keyspace");
 407         resultMap = MusicCore.autheticateUser(ns, userId, password, keyspaceName, aid,
 408                 "deleteLock");
 409         if (resultMap.containsKey("aid"))
 410             resultMap.remove("aid");
 411         if (!resultMap.isEmpty()) {
 412             logger.error(EELFLoggerDelegate.errorLogger,"", AppMessages.UNKNOWNERROR  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
 413             return response.status(Status.BAD_REQUEST).entity(resultMap).build();
 414         }
 415         try{
 416                 MusicCore.deleteLock(lockName);
 417         }catch (Exception e) {
 418             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(e.getMessage()).toMap()).build();
 419                 }
 420         return response.status(Status.OK).entity(new JsonResponse(ResultType.SUCCESS).toMap()).build();
 421     }
 422
 423 }