northbound-api/src/main/java/org/opendaylight/neutron/northbound/api/NeutronLoadBalancerHealthMonitorNorthbound.java

   1 /*
   2  * Copyright (C) 2014 Red Hat, Inc.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.neutron.northbound.api;
  10
  11 import java.net.HttpURLConnection;
  12
  13 import java.util.ArrayList;
  14 import java.util.HashMap;
  15 import java.util.Iterator;
  16 import java.util.List;
  17
  18 import javax.ws.rs.Consumes;
  19 import javax.ws.rs.DELETE;
  20 import javax.ws.rs.GET;
  21 import javax.ws.rs.POST;
  22 import javax.ws.rs.PUT;
  23 import javax.ws.rs.Path;
  24 import javax.ws.rs.PathParam;
  25 import javax.ws.rs.Produces;
  26 import javax.ws.rs.QueryParam;
  27 import javax.ws.rs.core.MediaType;
  28 import javax.ws.rs.core.Response;
  29
  30 import org.codehaus.enunciate.jaxrs.ResponseCode;
  31 import org.codehaus.enunciate.jaxrs.StatusCodes;
  32 import org.opendaylight.neutron.spi.INeutronLoadBalancerHealthMonitorAware;
  33 import org.opendaylight.neutron.spi.INeutronLoadBalancerHealthMonitorCRUD;
  34 import org.opendaylight.neutron.spi.NeutronCRUDInterfaces;
  35 import org.opendaylight.neutron.spi.NeutronLoadBalancerHealthMonitor;
  36
  37 /**
  38  * Neutron Northbound REST APIs for Load Balancer HealthMonitor.<br>
  39  * This class provides REST APIs for managing neutron LoadBalancerHealthMonitor
  40  *
  41  * <br>
  42  * <br>
  43  * Authentication scheme : <b>HTTP Basic</b><br>
  44  * Authentication realm : <b>opendaylight</b><br>
  45  * Transport : <b>HTTP and HTTPS</b><br>
  46  * <br>
  47  * HTTPS Authentication is disabled by default. Administrator can enable it in
  48  * tomcat-server.xml after adding a proper keystore / SSL certificate from a
  49  * trusted authority.<br>
  50  * More info :
  51  * http://tomcat.apache.org/tomcat-7.0-doc/ssl-howto.html#Configuration
  52  *
  53  */
  54 @Path("/lbaas/healthmonitors")
  55 public class NeutronLoadBalancerHealthMonitorNorthbound {
  56
  57     private static final int HTTP_OK_BOTTOM = 200;
  58     private static final int HTTP_OK_TOP = 299;
  59     private static final String INTERFACE_NAME = "LoadBalancerHealthMonitor CRUD Interface";
  60     private static final String UUID_NO_EXIST = "LoadBalancerHealthMonitor UUID does not exist.";
  61     private static final String NO_PROVIDERS = "No providers registered.  Please try again later";
  62     private static final String NO_PROVIDER_LIST = "Couldn't get providers list.  Please try again later";
  63
  64
  65     private NeutronLoadBalancerHealthMonitor extractFields(NeutronLoadBalancerHealthMonitor o, List<String> fields) {
  66         return o.extractFields(fields);
  67     }
  68
  69     private NeutronCRUDInterfaces getNeutronInterfaces() {
  70         NeutronCRUDInterfaces answer = new NeutronCRUDInterfaces().fetchINeutronLoadBalancerHealthMonitorCRUD(this);
  71         if (answer.getLoadBalancerHealthMonitorInterface() == null) {
  72             throw new ServiceUnavailableException(INTERFACE_NAME
  73                 + RestMessages.SERVICEUNAVAILABLE.toString());
  74         }
  75         return answer;
  76     }
  77
  78     /**
  79      * Returns a list of all LoadBalancerHealthMonitor */
  80     @GET
  81     @Produces({ MediaType.APPLICATION_JSON })
  82     @StatusCodes({
  83             @ResponseCode(code = HttpURLConnection.HTTP_OK, condition = "Operation successful"),
  84             @ResponseCode(code = HttpURLConnection.HTTP_UNAUTHORIZED, condition = "Unauthorized"),
  85             @ResponseCode(code = HttpURLConnection.HTTP_NOT_IMPLEMENTED, condition = "Not Implemented"),
  86             @ResponseCode(code = HttpURLConnection.HTTP_UNAVAILABLE, condition = "No providers available") })
  87
  88     public Response listGroups(
  89             // return fields
  90             @QueryParam("fields") List<String> fields,
  91             // OpenStack LoadBalancerHealthMonitor attributes
  92             @QueryParam("id") String queryLoadBalancerHealthMonitorID,
  93             @QueryParam("tenant_id") String queryLoadBalancerHealthMonitorTenantID,
  94             // TODO "type" is being a property by the JSON parser.
  95             @QueryParam("type") String queryLoadBalancerHealthMonitorType,
  96             @QueryParam("delay") Integer queryLoadBalancerHealthMonitorDelay,
  97             @QueryParam("timeout") Integer queryLoadBalancerHealthMonitorTimeout,
  98             @QueryParam("max_retries") Integer queryLoadBalancerHealthMonitorMaxRetries,
  99             @QueryParam("http_method") String queryLoadBalancerHealthMonitorHttpMethod,
 100             @QueryParam("url_path") String queryLoadBalancerHealthMonitorUrlPath,
 101             @QueryParam("expected_codes") String queryLoadBalancerHealthMonitorExpectedCodes,
 102             @QueryParam("admin_state_up") Boolean queryLoadBalancerHealthMonitorIsAdminStateUp,
 103             // pagination
 104             @QueryParam("limit") String limit,
 105             @QueryParam("marker") String marker,
 106             @QueryParam("page_reverse") String pageReverse
 107             // sorting not supported
 108     ) {
 109         INeutronLoadBalancerHealthMonitorCRUD loadBalancerHealthMonitorInterface = getNeutronInterfaces().getLoadBalancerHealthMonitorInterface();
 110         List<NeutronLoadBalancerHealthMonitor> allLoadBalancerHealthMonitors = loadBalancerHealthMonitorInterface.getAllNeutronLoadBalancerHealthMonitors();
 111         List<NeutronLoadBalancerHealthMonitor> ans = new ArrayList<NeutronLoadBalancerHealthMonitor>();
 112         Iterator<NeutronLoadBalancerHealthMonitor> i = allLoadBalancerHealthMonitors.iterator();
 113         while (i.hasNext()) {
 114             NeutronLoadBalancerHealthMonitor nsg = i.next();
 115             if ((queryLoadBalancerHealthMonitorID == null ||
 116                     queryLoadBalancerHealthMonitorID.equals(nsg.getLoadBalancerHealthMonitorID())) &&
 117                     (queryLoadBalancerHealthMonitorTenantID == null ||
 118                             queryLoadBalancerHealthMonitorTenantID.equals
 119                                     (nsg.getLoadBalancerHealthMonitorTenantID())) &&
 120                     (queryLoadBalancerHealthMonitorType == null ||
 121                             queryLoadBalancerHealthMonitorType.equals
 122                                     (nsg.getLoadBalancerHealthMonitorType())) &&
 123                     (queryLoadBalancerHealthMonitorDelay == null ||
 124                             queryLoadBalancerHealthMonitorDelay.equals
 125                                     (nsg.getLoadBalancerHealthMonitorDelay())) &&
 126                     (queryLoadBalancerHealthMonitorTimeout == null ||
 127                             queryLoadBalancerHealthMonitorTimeout.equals
 128                                     (nsg.getLoadBalancerHealthMonitorTimeout())) &&
 129                     (queryLoadBalancerHealthMonitorMaxRetries == null ||
 130                             queryLoadBalancerHealthMonitorMaxRetries.equals
 131                                     (nsg.getLoadBalancerHealthMonitorMaxRetries())) &&
 132                     (queryLoadBalancerHealthMonitorHttpMethod == null ||
 133                             queryLoadBalancerHealthMonitorHttpMethod.equals
 134                                     (nsg.getLoadBalancerHealthMonitorHttpMethod())) &&
 135                     (queryLoadBalancerHealthMonitorUrlPath == null ||
 136                             queryLoadBalancerHealthMonitorUrlPath.equals
 137                                     (nsg.getLoadBalancerHealthMonitorUrlPath())) &&
 138                     (queryLoadBalancerHealthMonitorExpectedCodes == null ||
 139                             queryLoadBalancerHealthMonitorExpectedCodes.equals
 140                                     (nsg.getLoadBalancerHealthMonitorExpectedCodes())) &&
 141                     (queryLoadBalancerHealthMonitorIsAdminStateUp == null ||
 142                             queryLoadBalancerHealthMonitorIsAdminStateUp.equals
 143                                     (nsg.getLoadBalancerHealthMonitorAdminStateIsUp()))) {
 144                 if (fields.size() > 0) {
 145                     ans.add(extractFields(nsg,fields));
 146                 } else {
 147                     ans.add(nsg);
 148                 }
 149             }
 150         }
 151         return Response.status(HttpURLConnection.HTTP_OK).entity(
 152                 new NeutronLoadBalancerHealthMonitorRequest(ans)).build();
 153     }
 154
 155     /**
 156      * Returns a specific LoadBalancerHealthMonitor */
 157
 158     @Path("{loadBalancerHealthMonitorID}")
 159     @GET
 160     @Produces({ MediaType.APPLICATION_JSON })
 161     @StatusCodes({
 162             @ResponseCode(code = HttpURLConnection.HTTP_OK, condition = "Operation successful"),
 163             @ResponseCode(code = HttpURLConnection.HTTP_UNAUTHORIZED, condition = "Unauthorized"),
 164             @ResponseCode(code = HttpURLConnection.HTTP_NOT_FOUND, condition = "Not Found"),
 165             @ResponseCode(code = HttpURLConnection.HTTP_NOT_IMPLEMENTED, condition = "Not Implemented"),
 166             @ResponseCode(code = HttpURLConnection.HTTP_UNAVAILABLE, condition = "No providers available") })
 167     public Response showLoadBalancerHealthMonitor(@PathParam("loadBalancerHealthMonitorID") String loadBalancerHealthMonitorID,
 168             // return fields
 169             @QueryParam("fields") List<String> fields) {
 170         INeutronLoadBalancerHealthMonitorCRUD loadBalancerHealthMonitorInterface = getNeutronInterfaces().getLoadBalancerHealthMonitorInterface();
 171         if (!loadBalancerHealthMonitorInterface.neutronLoadBalancerHealthMonitorExists(loadBalancerHealthMonitorID)) {
 172             throw new ResourceNotFoundException(UUID_NO_EXIST);
 173         }
 174         if (fields.size() > 0) {
 175             NeutronLoadBalancerHealthMonitor ans = loadBalancerHealthMonitorInterface.getNeutronLoadBalancerHealthMonitor(loadBalancerHealthMonitorID);
 176             return Response.status(HttpURLConnection.HTTP_OK).entity(
 177                     new NeutronLoadBalancerHealthMonitorRequest(extractFields(ans, fields))).build();
 178         } else {
 179             return Response.status(HttpURLConnection.HTTP_OK).entity(new NeutronLoadBalancerHealthMonitorRequest(loadBalancerHealthMonitorInterface.getNeutronLoadBalancerHealthMonitor(loadBalancerHealthMonitorID))).build();
 180         }
 181     }
 182
 183     /**
 184      * Creates new LoadBalancerHealthMonitor */
 185
 186     @POST
 187     @Produces({ MediaType.APPLICATION_JSON })
 188     @Consumes({ MediaType.APPLICATION_JSON })
 189     @StatusCodes({
 190             @ResponseCode(code = HttpURLConnection.HTTP_CREATED, condition = "Created"),
 191             @ResponseCode(code = HttpURLConnection.HTTP_BAD_REQUEST, condition = "Bad Request"),
 192             @ResponseCode(code = HttpURLConnection.HTTP_UNAUTHORIZED, condition = "Unauthorized"),
 193             @ResponseCode(code = HttpURLConnection.HTTP_FORBIDDEN, condition = "Forbidden"),
 194             @ResponseCode(code = HttpURLConnection.HTTP_NOT_FOUND, condition = "Not Found"),
 195             @ResponseCode(code = HttpURLConnection.HTTP_CONFLICT, condition = "Conflict"),
 196             @ResponseCode(code = HttpURLConnection.HTTP_NOT_IMPLEMENTED, condition = "Not Implemented"),
 197             @ResponseCode(code = HttpURLConnection.HTTP_UNAVAILABLE, condition = "No providers available") })
 198     public Response createLoadBalancerHealthMonitors(final NeutronLoadBalancerHealthMonitorRequest input) {
 199         INeutronLoadBalancerHealthMonitorCRUD loadBalancerHealthMonitorInterface = getNeutronInterfaces().getLoadBalancerHealthMonitorInterface();
 200         if (input.isSingleton()) {
 201             NeutronLoadBalancerHealthMonitor singleton = input.getSingleton();
 202
 203             /*
 204              *  Verify that the LoadBalancerHealthMonitor doesn't already exist.
 205              */
 206             if (loadBalancerHealthMonitorInterface.neutronLoadBalancerHealthMonitorExists(singleton.getLoadBalancerHealthMonitorID())) {
 207                 throw new BadRequestException("LoadBalancerHealthMonitor UUID already exists");
 208             }
 209
 210             Object[] instances = NeutronUtil.getInstances(INeutronLoadBalancerHealthMonitorAware.class, this);
 211             if (instances != null) {
 212                 if (instances.length > 0) {
 213                     for (Object instance : instances) {
 214                         INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 215                         int status = service.canCreateNeutronLoadBalancerHealthMonitor(singleton);
 216                         if (status < HTTP_OK_BOTTOM || status > HTTP_OK_TOP) {
 217                             return Response.status(status).build();
 218                         }
 219                     }
 220                 } else {
 221                     throw new ServiceUnavailableException(NO_PROVIDERS);
 222                 }
 223             } else {
 224                 throw new ServiceUnavailableException(NO_PROVIDER_LIST);
 225             }
 226             loadBalancerHealthMonitorInterface.addNeutronLoadBalancerHealthMonitor(singleton);
 227             if (instances != null) {
 228                 for (Object instance : instances) {
 229                     INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 230                     service.neutronLoadBalancerHealthMonitorCreated(singleton);
 231                 }
 232             }
 233         } else {
 234             List<NeutronLoadBalancerHealthMonitor> bulk = input.getBulk();
 235             Iterator<NeutronLoadBalancerHealthMonitor> i = bulk.iterator();
 236             HashMap<String, NeutronLoadBalancerHealthMonitor> testMap = new HashMap<String, NeutronLoadBalancerHealthMonitor>();
 237             Object[] instances = NeutronUtil.getInstances(INeutronLoadBalancerHealthMonitorAware.class, this);
 238             while (i.hasNext()) {
 239                 NeutronLoadBalancerHealthMonitor test = i.next();
 240
 241                 /*
 242                  *  Verify that the firewall policy doesn't already exist
 243                  */
 244
 245                 if (loadBalancerHealthMonitorInterface
 246                         .neutronLoadBalancerHealthMonitorExists(test.getLoadBalancerHealthMonitorID())) {
 247                     throw new BadRequestException("LoadBalancerHealthMonitor UUID already is already created");
 248                 }
 249                 if (testMap.containsKey(test.getLoadBalancerHealthMonitorID())) {
 250                     throw new BadRequestException("LoadBalancerHealthMonitor UUID already exists");
 251                 }
 252                 if (instances != null) {
 253                     if (instances.length > 0) {
 254                         for (Object instance : instances) {
 255                             INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 256                             int status = service.canCreateNeutronLoadBalancerHealthMonitor(test);
 257                             if (status < HTTP_OK_BOTTOM || status > HTTP_OK_TOP) {
 258                                 return Response.status(status).build();
 259                             }
 260                         }
 261                     } else {
 262                         throw new ServiceUnavailableException(NO_PROVIDERS);
 263                     }
 264                 } else {
 265                     throw new ServiceUnavailableException(NO_PROVIDER_LIST);
 266                 }
 267             }
 268             /*
 269              * now, each element of the bulk request can be added to the cache
 270              */
 271             i = bulk.iterator();
 272             while (i.hasNext()) {
 273                 NeutronLoadBalancerHealthMonitor test = i.next();
 274                 loadBalancerHealthMonitorInterface.addNeutronLoadBalancerHealthMonitor(test);
 275                 if (instances != null) {
 276                     for (Object instance : instances) {
 277                         INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 278                         service.neutronLoadBalancerHealthMonitorCreated(test);
 279                     }
 280                 }
 281             }
 282         }
 283         return Response.status(HttpURLConnection.HTTP_CREATED).entity(input).build();
 284     }
 285
 286     /**
 287      * Updates a LoadBalancerHealthMonitor Policy
 288      */
 289     @Path("{loadBalancerHealthMonitorID}")
 290     @PUT
 291     @Produces({ MediaType.APPLICATION_JSON })
 292     @Consumes({ MediaType.APPLICATION_JSON })
 293     @StatusCodes({
 294             @ResponseCode(code = HttpURLConnection.HTTP_OK, condition = "Operation successful"),
 295             @ResponseCode(code = HttpURLConnection.HTTP_BAD_REQUEST, condition = "Bad Request"),
 296             @ResponseCode(code = HttpURLConnection.HTTP_UNAUTHORIZED, condition = "Unauthorized"),
 297             @ResponseCode(code = HttpURLConnection.HTTP_FORBIDDEN, condition = "Forbidden"),
 298             @ResponseCode(code = HttpURLConnection.HTTP_NOT_FOUND, condition = "Not Found"),
 299             @ResponseCode(code = HttpURLConnection.HTTP_NOT_IMPLEMENTED, condition = "Not Implemented"),
 300             @ResponseCode(code = HttpURLConnection.HTTP_UNAVAILABLE, condition = "No providers available") })
 301     public Response updateLoadBalancerHealthMonitor(
 302             @PathParam("loadBalancerHealthMonitorID") String loadBalancerHealthMonitorID,
 303             final NeutronLoadBalancerHealthMonitorRequest input) {
 304         INeutronLoadBalancerHealthMonitorCRUD loadBalancerHealthMonitorInterface = getNeutronInterfaces().getLoadBalancerHealthMonitorInterface();
 305
 306         /*
 307          * verify the LoadBalancerHealthMonitor exists and there is only one delta provided
 308          */
 309         if (!loadBalancerHealthMonitorInterface.neutronLoadBalancerHealthMonitorExists(loadBalancerHealthMonitorID)) {
 310             throw new ResourceNotFoundException(UUID_NO_EXIST);
 311         }
 312         if (!input.isSingleton()) {
 313             throw new BadRequestException("Only singleton edit supported");
 314         }
 315         NeutronLoadBalancerHealthMonitor delta = input.getSingleton();
 316         NeutronLoadBalancerHealthMonitor original = loadBalancerHealthMonitorInterface
 317                 .getNeutronLoadBalancerHealthMonitor(loadBalancerHealthMonitorID);
 318
 319         /*
 320          * updates restricted by Neutron
 321          */
 322         if (delta.getLoadBalancerHealthMonitorID() != null ||
 323                 delta.getLoadBalancerHealthMonitorTenantID() != null ||
 324                 delta.getLoadBalancerHealthMonitorType() != null ||
 325                 delta.getLoadBalancerHealthMonitorDelay() != null ||
 326                 delta.getLoadBalancerHealthMonitorTimeout() != null ||
 327                 delta.getLoadBalancerHealthMonitorMaxRetries() != null ||
 328                 delta.getLoadBalancerHealthMonitorHttpMethod() != null ||
 329                 delta.getLoadBalancerHealthMonitorUrlPath() != null ||
 330                 delta.getLoadBalancerHealthMonitorExpectedCodes() != null ||
 331                 delta.getLoadBalancerHealthMonitorAdminStateIsUp() != null) {
 332             throw new BadRequestException("Attribute edit blocked by Neutron");
 333         }
 334
 335         Object[] instances = NeutronUtil.getInstances(INeutronLoadBalancerHealthMonitorAware.class, this);
 336         if (instances != null) {
 337             if (instances.length > 0) {
 338                 for (Object instance : instances) {
 339                     INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 340                     int status = service.canUpdateNeutronLoadBalancerHealthMonitor(delta, original);
 341                     if (status < HTTP_OK_BOTTOM || status > HTTP_OK_TOP) {
 342                         return Response.status(status).build();
 343                     }
 344                 }
 345             } else {
 346                 throw new ServiceUnavailableException(NO_PROVIDERS);
 347             }
 348         } else {
 349             throw new ServiceUnavailableException(NO_PROVIDER_LIST);
 350         }
 351
 352         /*
 353          * update the object and return it
 354          */
 355         loadBalancerHealthMonitorInterface.updateNeutronLoadBalancerHealthMonitor(loadBalancerHealthMonitorID, delta);
 356         NeutronLoadBalancerHealthMonitor updatedLoadBalancerHealthMonitor = loadBalancerHealthMonitorInterface
 357                 .getNeutronLoadBalancerHealthMonitor(loadBalancerHealthMonitorID);
 358         if (instances != null) {
 359             for (Object instance : instances) {
 360                 INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 361                 service.neutronLoadBalancerHealthMonitorUpdated(updatedLoadBalancerHealthMonitor);
 362             }
 363         }
 364         return Response.status(HttpURLConnection.HTTP_OK).entity(new NeutronLoadBalancerHealthMonitorRequest
 365                 (loadBalancerHealthMonitorInterface.getNeutronLoadBalancerHealthMonitor
 366                         (loadBalancerHealthMonitorID))).build();
 367     }
 368
 369
 370
 371     /**
 372      * Deletes a LoadBalancerHealthMonitor
 373      * */
 374     @Path("{loadBalancerHealthMonitorID}")
 375     @DELETE
 376     @StatusCodes({
 377             @ResponseCode(code = HttpURLConnection.HTTP_NO_CONTENT, condition = "No Content"),
 378             @ResponseCode(code = HttpURLConnection.HTTP_UNAUTHORIZED, condition = "Unauthorized"),
 379             @ResponseCode(code = HttpURLConnection.HTTP_NOT_FOUND, condition = "Not Found"),
 380             @ResponseCode(code = HttpURLConnection.HTTP_CONFLICT, condition = "Conflict"),
 381             @ResponseCode(code = HttpURLConnection.HTTP_NOT_IMPLEMENTED, condition = "Not Implemented"),
 382             @ResponseCode(code = HttpURLConnection.HTTP_UNAVAILABLE, condition = "No providers available") })
 383     public Response deleteLoadBalancerHealthMonitor(
 384             @PathParam("loadBalancerHealthMonitorID") String loadBalancerHealthMonitorID) {
 385         INeutronLoadBalancerHealthMonitorCRUD loadBalancerHealthMonitorInterface = getNeutronInterfaces().getLoadBalancerHealthMonitorInterface();
 386         /*
 387          * verify the LoadBalancerHealthMonitor exists and it isn't currently in use
 388          */
 389         if (!loadBalancerHealthMonitorInterface.neutronLoadBalancerHealthMonitorExists(loadBalancerHealthMonitorID)) {
 390             throw new ResourceNotFoundException(UUID_NO_EXIST);
 391         }
 392         if (loadBalancerHealthMonitorInterface.neutronLoadBalancerHealthMonitorInUse(loadBalancerHealthMonitorID)) {
 393             return Response.status(HttpURLConnection.HTTP_CONFLICT).build();
 394         }
 395         NeutronLoadBalancerHealthMonitor singleton = loadBalancerHealthMonitorInterface.getNeutronLoadBalancerHealthMonitor(loadBalancerHealthMonitorID);
 396         Object[] instances = NeutronUtil.getInstances(INeutronLoadBalancerHealthMonitorAware.class, this);
 397         if (instances != null) {
 398             if (instances.length > 0) {
 399                 for (Object instance : instances) {
 400                     INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 401                     int status = service.canDeleteNeutronLoadBalancerHealthMonitor(singleton);
 402                     if (status < HTTP_OK_BOTTOM || status > HTTP_OK_TOP) {
 403                         return Response.status(status).build();
 404                     }
 405                 }
 406             } else {
 407                 throw new ServiceUnavailableException(NO_PROVIDERS);
 408             }
 409         } else {
 410             throw new ServiceUnavailableException(NO_PROVIDER_LIST);
 411         }
 412         loadBalancerHealthMonitorInterface.removeNeutronLoadBalancerHealthMonitor(loadBalancerHealthMonitorID);
 413         if (instances != null) {
 414             for (Object instance : instances) {
 415                 INeutronLoadBalancerHealthMonitorAware service = (INeutronLoadBalancerHealthMonitorAware) instance;
 416                 service.neutronLoadBalancerHealthMonitorDeleted(singleton);
 417             }
 418         }
 419         return Response.status(HttpURLConnection.HTTP_NO_CONTENT).build();
 420     }
 421 }