opendaylight/adsal/northbound/hosttracker/src/main/java/org/opendaylight/controller/hosttracker/northbound/HostTrackerNorthbound.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   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.controller.hosttracker.northbound;
  10
  11 import java.net.InetAddress;
  12 import java.net.UnknownHostException;
  13 import java.util.HashSet;
  14 import java.util.List;
  15 import java.util.Set;
  16
  17 import javax.ws.rs.Consumes;
  18 import javax.ws.rs.DELETE;
  19 import javax.ws.rs.GET;
  20 import javax.ws.rs.PUT;
  21 import javax.ws.rs.Path;
  22 import javax.ws.rs.PathParam;
  23 import javax.ws.rs.Produces;
  24 import javax.ws.rs.QueryParam;
  25 import javax.ws.rs.core.Context;
  26 import javax.ws.rs.core.MediaType;
  27 import javax.ws.rs.core.Response;
  28 import javax.ws.rs.core.SecurityContext;
  29 import javax.ws.rs.core.UriInfo;
  30 import javax.ws.rs.ext.ContextResolver;
  31
  32 import org.codehaus.enunciate.jaxrs.ResponseCode;
  33 import org.codehaus.enunciate.jaxrs.StatusCodes;
  34 import org.codehaus.enunciate.jaxrs.TypeHint;
  35 import org.opendaylight.controller.containermanager.IContainerManager;
  36 import org.opendaylight.controller.hosttracker.IfIptoHost;
  37 import org.opendaylight.controller.hosttracker.hostAware.HostNodeConnector;
  38 import org.opendaylight.controller.northbound.commons.RestMessages;
  39 import org.opendaylight.controller.northbound.commons.exception.BadRequestException;
  40 import org.opendaylight.controller.northbound.commons.exception.ResourceConflictException;
  41 import org.opendaylight.controller.northbound.commons.exception.ResourceNotFoundException;
  42 import org.opendaylight.controller.northbound.commons.exception.ServiceUnavailableException;
  43 import org.opendaylight.controller.northbound.commons.exception.UnauthorizedException;
  44 import org.opendaylight.controller.northbound.commons.query.QueryContext;
  45 import org.opendaylight.controller.northbound.commons.utils.NorthboundUtils;
  46 import org.opendaylight.controller.sal.authorization.Privilege;
  47 import org.opendaylight.controller.sal.core.Node;
  48 import org.opendaylight.controller.sal.core.NodeConnector;
  49 import org.opendaylight.controller.sal.utils.GlobalConstants;
  50 import org.opendaylight.controller.sal.utils.ServiceHelper;
  51 import org.opendaylight.controller.sal.utils.Status;
  52 import org.opendaylight.controller.switchmanager.ISwitchManager;
  53
  54 /**
  55  * Host Tracker Northbound REST APIs.<br>
  56  * This class provides REST APIs to track host location in a network. Host
  57  * Location is represented by Host node connector which is essentially a logical
  58  * entity that represents a Switch/Port. A host is represented by it's
  59  * IP-address and mac-address.
  60  *
  61  * <br>
  62  * <br>
  63  * Authentication scheme : <b>HTTP Basic</b><br>
  64  * Authentication realm : <b>opendaylight</b><br>
  65  * Transport : <b>HTTP and HTTPS</b><br>
  66  * <br>
  67  * HTTPS Authentication is disabled by default.
  68  *
  69  */
  70
  71 @Path("/")
  72 public class HostTrackerNorthbound {
  73
  74     private String username;
  75     private QueryContext queryContext;
  76
  77     @Context
  78     public void setQueryContext(ContextResolver<QueryContext> queryCtxResolver) {
  79       if (queryCtxResolver != null) {
  80         queryContext = queryCtxResolver.getContext(QueryContext.class);
  81       }
  82     }
  83
  84     @Context
  85     public void setSecurityContext(SecurityContext context) {
  86         if (context != null && context.getUserPrincipal() != null) username = context.getUserPrincipal().getName();
  87     }
  88
  89     protected String getUserName() {
  90         return username;
  91     }
  92
  93     private IfIptoHost getIfIpToHostService(String containerName) {
  94         IContainerManager containerManager = (IContainerManager) ServiceHelper.getGlobalInstance(
  95                 IContainerManager.class, this);
  96         if (containerManager == null) {
  97             throw new ServiceUnavailableException("Container " + RestMessages.SERVICEUNAVAILABLE.toString());
  98         }
  99
 100         boolean found = false;
 101         List<String> containerNames = containerManager.getContainerNames();
 102         for (String cName : containerNames) {
 103             if (cName.trim().equalsIgnoreCase(containerName.trim())) {
 104                 found = true;
 105                 break;
 106             }
 107         }
 108
 109         if (!found) {
 110             throw new ResourceNotFoundException(containerName + " " + RestMessages.NOCONTAINER.toString());
 111         }
 112
 113         IfIptoHost hostTracker = (IfIptoHost) ServiceHelper.getInstance(IfIptoHost.class, containerName, this);
 114         if (hostTracker == null) {
 115             throw new ServiceUnavailableException("Host Tracker " + RestMessages.SERVICEUNAVAILABLE.toString());
 116         }
 117
 118         return hostTracker;
 119     }
 120
 121     private Set<HostConfig> convertHosts(Set<HostNodeConnector> hostNodeConnectors) {
 122         if(hostNodeConnectors == null) {
 123             return null;
 124         }
 125         Set<HostConfig> hosts = new HashSet<HostConfig>();
 126         for(HostNodeConnector hnc : hostNodeConnectors) {
 127             hosts.add(HostConfig.convert(hnc));
 128         }
 129         return hosts;
 130     }
 131
 132     /**
 133      * Returns a list of all Hosts : both configured via PUT API and dynamically
 134      * learnt on the network.
 135      *
 136      * @param containerName
 137      *            Name of the Container. The Container name for the base
 138      *            controller is "default".
 139      * @return List of Active Hosts.
 140      * <pre>
 141      *
 142      * Example:
 143      *
 144      * Request URL:
 145      * http://localhost:8080/controller/nb/v2/hosttracker/default/hosts/active
 146      *
 147      * Response body in XML
 148      *
 149      * &lt;list&gt;
 150      * &#x20;&lt;hostConfig&gt;
 151      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 152      * &#x20;&#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 153      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 154      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 155      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 156      * &#x20;&#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 157      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 158      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 159      * &#x20;&lt;/hostConfig&gt;
 160      * &#x20;&lt;hostConfig&gt;
 161      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:02:02&lt;/dataLayerAddress&gt;
 162      * &#x20;&#x20;&lt;networkAddress&gt;2.2.2.2&lt;/networkAddress&gt;
 163      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 164      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:02&lt;/nodeId&gt;
 165      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 166      * &#x20;&#x20;&lt;nodeConnectorId&gt;5&lt;/nodeConnectorId&gt;
 167      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 168      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 169      * &#x20;&lt;/hostConfig&gt;
 170      * &lt;/list&gt;
 171      *
 172      * Response body in JSON:
 173      *
 174      * {
 175      * &#x20;"hostConfig":[
 176      * &#x20;&#x20;{
 177      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:01:01",
 178      * &#x20;&#x20;&#x20;"nodeType":"OF",
 179      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:01",
 180      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 181      * &#x20;&#x20;&#x20;"nodeConnectorId":"9",
 182      * &#x20;&#x20;&#x20;"vlan":"0",
 183      * &#x20;&#x20;&#x20;"staticHost":"false",
 184      * &#x20;&#x20;&#x20;"networkAddress":"1.1.1.1"
 185      * &#x20;&#x20;},
 186      * &#x20;&#x20;{
 187      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:02:02",
 188      * &#x20;&#x20;&#x20;"nodeType":"OF",
 189      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:02",
 190      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 191      * &#x20;&#x20;&#x20;"nodeConnectorId":"5",
 192      * &#x20;&#x20;&#x20;"vlan":"0",
 193      * &#x20;&#x20;&#x20;"staticHost":"false",
 194      * &#x20;&#x20;&#x20;"networkAddress":"2.2.2.2"
 195      * &#x20;&#x20;}
 196      * &#x20;]
 197      * }
 198      * </pre>
 199      */
 200     @Path("/{containerName}/hosts/active")
 201     @GET
 202     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 203     @TypeHint(Hosts.class)
 204     @StatusCodes({
 205             @ResponseCode(code = 200, condition = "Operation successful"),
 206             @ResponseCode(code = 404, condition = "The containerName is not found"),
 207             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 208     public Hosts getActiveHosts(@PathParam("containerName") String containerName,
 209         @QueryParam("_q") String queryString) {
 210
 211         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 212             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 213                     + containerName);
 214         }
 215         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 216         Hosts hosts = new Hosts(convertHosts(hostTracker.getAllHosts()));
 217         if (queryString != null) {
 218             queryContext.createQuery(queryString, Hosts.class)
 219                 .filter(hosts, HostConfig.class);
 220         }
 221         return hosts;
 222     }
 223
 224     /**
 225      * Returns a list of Hosts that are statically configured and are connected
 226      * to a NodeConnector that is down.
 227      *
 228      * @param containerName
 229      *            Name of the Container. The Container name for the base
 230      *            controller is "default".
 231      * @return List of inactive Hosts.
 232      * <pre>
 233      *
 234      * Example:
 235      *
 236      * Request URL:
 237      * http://localhost:8080/controller/nb/v2/hosttracker/default/hosts/inactive
 238      *
 239      * Response body in XML
 240      *
 241      * &lt;list&gt;
 242      * &#x20;&lt;hostConfig&gt;
 243      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 244      * &#x20;&#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 245      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 246      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 247      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 248      * &#x20;&#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 249      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 250      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 251      * &#x20;&lt;/hostConfig&gt;
 252      * &#x20;&lt;hostConfig&gt;
 253      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:02:02&lt;/dataLayerAddress&gt;
 254      * &#x20;&#x20;&lt;networkAddress&gt;2.2.2.2&lt;/networkAddress&gt;
 255      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 256      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:02&lt;/nodeId&gt;
 257      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 258      * &#x20;&#x20;&lt;nodeConnectorId&gt;5&lt;/nodeConnectorId&gt;
 259      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 260      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 261      * &#x20;&lt;/hostConfig&gt;
 262      * &lt;/list&gt;
 263      *
 264      * Response body in JSON:
 265      *
 266      * {
 267      * &#x20;"hostConfig":[
 268      * &#x20;&#x20;{
 269      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:01:01",
 270      * &#x20;&#x20;&#x20;"nodeType":"OF",
 271      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:01",
 272      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 273      * &#x20;&#x20;&#x20;"nodeConnectorId":"9",
 274      * &#x20;&#x20;&#x20;"vlan":"0",
 275      * &#x20;&#x20;&#x20;"staticHost":"false",
 276      * &#x20;&#x20;&#x20;"networkAddress":"1.1.1.1"
 277      * &#x20;&#x20;},
 278      * &#x20;&#x20;{
 279      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:02:02",
 280      * &#x20;&#x20;&#x20;"nodeType":"OF",
 281      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:02",
 282      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 283      * &#x20;&#x20;&#x20;"nodeConnectorId":"5",
 284      * &#x20;&#x20;&#x20;"vlan":"0",
 285      * &#x20;&#x20;&#x20;"staticHost":"false",
 286      * &#x20;&#x20;&#x20;"networkAddress":"2.2.2.2"
 287      * &#x20;&#x20;}
 288      * &#x20;]
 289      * }
 290      * </pre>
 291      */
 292     @Path("/{containerName}/hosts/inactive")
 293     @GET
 294     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 295     @TypeHint(Hosts.class)
 296     @StatusCodes({
 297             @ResponseCode(code = 200, condition = "Operation successful"),
 298             @ResponseCode(code = 404, condition = "The containerName is not found"),
 299             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 300     public Hosts getInactiveHosts(
 301             @PathParam("containerName") String containerName,
 302             @QueryParam("_q") String queryString) {
 303         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 304             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 305                     + containerName);
 306         }
 307         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 308         Hosts hosts = new Hosts(convertHosts(hostTracker.getInactiveStaticHosts()));
 309         if (queryString != null) {
 310             queryContext.createQuery(queryString, Hosts.class)
 311                 .filter(hosts, HostConfig.class);
 312         }
 313         return hosts;
 314     }
 315
 316     /**
 317      * Returns a host that matches the IP Address value passed as parameter.
 318      *
 319      * @param containerName
 320      *            Name of the Container. The Container name for the base
 321      *            controller is "default".
 322      * @param networkAddress
 323      *            IP Address being looked up
 324      * @return host that matches the IP Address
 325      * <pre>
 326      *
 327      * Example:
 328      *
 329      * Request URL:
 330      * http://localhost:8080/controller/nb/v2/hosttracker/default/address/1.1.1.1
 331      *
 332      * Response body in XML
 333      *
 334      * &lt;hostConfig&gt;
 335      * &#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 336      * &#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 337      * &#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 338      * &#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 339      * &#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 340      * &#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 341      * &#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 342      * &#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 343      * &lt;/hostConfig&gt;
 344      *
 345      * Response body in JSON:
 346      *
 347      * {
 348      * &#x20;"dataLayerAddress":"00:00:00:00:01:01",
 349      * &#x20;"nodeType":"OF",
 350      * &#x20;"nodeId":"00:00:00:00:00:00:00:01",
 351      * &#x20;"nodeConnectorType":"OF",
 352      * &#x20;"nodeConnectorId":"9",
 353      * &#x20;"vlan":"0",
 354      * &#x20;"staticHost":"false",
 355      * &#x20;"networkAddress":"1.1.1.1"
 356      * }
 357      * </pre>
 358      */
 359     @Path("/{containerName}/address/{networkAddress}")
 360     @GET
 361     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 362     @TypeHint(HostConfig.class)
 363     @StatusCodes({
 364             @ResponseCode(code = 200, condition = "Operation successful"),
 365             @ResponseCode(code = 400, condition = "Invalid IP specified in networkAddress parameter"),
 366             @ResponseCode(code = 404, condition = "The containerName is not found"),
 367             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 368     public HostConfig getHostDetails(
 369             @PathParam("containerName") String containerName,
 370             @PathParam("networkAddress") String networkAddress) {
 371         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 372             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 373                     + containerName);
 374         }
 375         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 376
 377         InetAddress ip;
 378         try {
 379             ip = InetAddress.getByName(networkAddress);
 380         } catch (UnknownHostException e) {
 381             throw new BadRequestException(RestMessages.INVALIDADDRESS.toString() + " " + networkAddress);
 382         }
 383         for (HostNodeConnector host : hostTracker.getAllHosts()) {
 384             if (host.getNetworkAddress().equals(ip)) {
 385                 return HostConfig.convert(host);
 386             }
 387         }
 388         throw new ResourceNotFoundException(RestMessages.NOHOST.toString());
 389     }
 390
 391     /**
 392      * Add a Static Host configuration. If a host by the given address already
 393      * exists, this method will respond with a non-successful status response.
 394      *
 395      * @param containerName
 396      *            Name of the Container. The Container name for the base
 397      *            controller is "default".
 398      * @param networkAddress
 399      *            Host IP Address
 400      * @param hostConfig
 401      *            Host Config Details
 402      * @return Response as dictated by the HTTP Response Status code
 403      *
 404      * <pre>
 405      *
 406      * Example:
 407      *
 408      * Request URL:
 409      * http://localhost:8080/controller/nb/v2/hosttracker/default/address/1.1.1.1
 410      *
 411      * Request body in XML
 412      *
 413      * &lt;hostConfig&gt;
 414      * &#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 415      * &#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 416      * &#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 417      * &#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 418      * &#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 419      * &#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 420      * &#x20;&lt;vlan&gt;1&lt;/vlan&gt;
 421      * &#x20;&lt;staticHost&gt;true&lt;/staticHost&gt;
 422      * &lt;/hostConfig&gt;
 423      *
 424      * Request body in JSON:
 425      *
 426      * {
 427      * &#x20;"dataLayerAddress":"00:00:00:00:01:01",
 428      * &#x20;"nodeType":"OF",
 429      * &#x20;"nodeId":"00:00:00:00:00:00:00:01",
 430      * &#x20;"nodeConnectorType":"OF",
 431      * &#x20;"nodeConnectorId":"9",
 432      * &#x20;"vlan":"1",
 433      * &#x20;"staticHost":"true",
 434      * &#x20;"networkAddress":"1.1.1.1"
 435      * }
 436      * </pre>
 437      */
 438
 439     @Path("/{containerName}/address/{networkAddress}")
 440     @PUT
 441     @Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 442     @StatusCodes({
 443             @ResponseCode(code = 201, condition = "Static host created successfully"),
 444             @ResponseCode(code = 400, condition = "Invalid parameters specified, see response body for details"),
 445             @ResponseCode(code = 404, condition = "The container or resource is not found"),
 446             @ResponseCode(code = 409, condition = "Resource conflict, see response body for details"),
 447             @ResponseCode(code = 503, condition = "One or more of Controller services are unavailable") })
 448     public Response addHost(@Context UriInfo uriInfo, @PathParam("containerName") String containerName,
 449             @PathParam("networkAddress") String networkAddress,
 450             @TypeHint(HostConfig.class) HostConfig hostConfig) {
 451
 452         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.WRITE, this)) {
 453             return Response.status(Response.Status.UNAUTHORIZED)
 454                     .entity("User is not authorized to perform this operation on container " + containerName)
 455                     .build();
 456         }
 457         handleDefaultDisabled(containerName);
 458
 459         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 460
 461         HostConfig hc = hostConfig;
 462         if (!networkAddress.equals(hc.getNetworkAddress())) {
 463             return Response.status(Response.Status.CONFLICT)
 464                     .entity("Resource name in config object doesn't match URI")
 465                     .build();
 466         }
 467         if (!hc.isStaticHost()) {
 468             return Response.status(Response.Status.BAD_REQUEST)
 469                     .entity("Can only add static host.")
 470                     .build();
 471         }
 472         Node node = handleNodeAvailability(containerName, hc.getNodeType(), hc.getNodeId());
 473         NodeConnector nc = NodeConnector.fromStringNoNode(hc.getNodeConnectorType(), hc.getNodeConnectorId(), node);
 474
 475         Status status = hostTracker.addStaticHost(networkAddress, hc.getDataLayerAddress(), nc, hc.getVlan());
 476         if (status.isSuccess()) {
 477             NorthboundUtils.auditlog("Static Host", username, "added", networkAddress, containerName);
 478             return Response.created(uriInfo.getRequestUri()).build();
 479         }
 480
 481         return NorthboundUtils.getResponse(status);
 482     }
 483
 484     /**
 485      * Delete a Static Host configuration
 486      *
 487      * @param containerName
 488      *            Name of the Container. The Container name for the base
 489      *            controller is "default".
 490      * @param networkAddress
 491      *            IP Address
 492      * @return Response as dictated by the HTTP Response code.
 493      *
 494      * Example:
 495      *
 496      * Request URL:
 497      * http://localhost:8080/controller/nb/v2/hosttracker/default/address/1.1.1.1
 498      *
 499      */
 500
 501     @Path("/{containerName}/address/{networkAddress}")
 502     @DELETE
 503     @Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 504     @StatusCodes({
 505             @ResponseCode(code = 204, condition = "Static host deleted successfully"),
 506             @ResponseCode(code = 404, condition = "The container or a specified resource was not found"),
 507             @ResponseCode(code = 406, condition = "Cannot operate on Default Container when other Containers are active"),
 508             @ResponseCode(code = 503, condition = "One or more of Controller service is unavailable") })
 509     public Response deleteHost(
 510             @PathParam(value = "containerName") String containerName,
 511             @PathParam(value = "networkAddress") String networkAddress) {
 512
 513         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.WRITE, this)) {
 514             return Response.status(Response.Status.UNAUTHORIZED)
 515                     .entity("User is not authorized to perform this operation on container " + containerName)
 516                     .build();
 517         }
 518         handleDefaultDisabled(containerName);
 519         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 520
 521         Status status = hostTracker.removeStaticHost(networkAddress);
 522         if (status.isSuccess()) {
 523             NorthboundUtils.auditlog("Static Host", username, "removed", networkAddress, containerName);
 524             return Response.noContent().build();
 525         }
 526         return NorthboundUtils.getResponse(status);
 527
 528     }
 529
 530     private void handleDefaultDisabled(String containerName) {
 531         IContainerManager containerManager = (IContainerManager) ServiceHelper
 532                 .getGlobalInstance(IContainerManager.class, this);
 533         if (containerManager == null) {
 534             throw new ServiceUnavailableException(
 535                     RestMessages.SERVICEUNAVAILABLE.toString());
 536         }
 537         if (containerName.equals(GlobalConstants.DEFAULT.toString())
 538                 && containerManager.hasNonDefaultContainer()) {
 539             throw new ResourceConflictException(
 540                     RestMessages.DEFAULTDISABLED.toString());
 541         }
 542     }
 543
 544     private Node handleNodeAvailability(String containerName, String nodeType, String nodeId) {
 545
 546         Node node = Node.fromString(nodeType, nodeId);
 547         if (node == null) {
 548             throw new ResourceNotFoundException(nodeId + " : "
 549                     + RestMessages.NONODE.toString());
 550         }
 551
 552         ISwitchManager sm = (ISwitchManager) ServiceHelper.getInstance(
 553                 ISwitchManager.class, containerName, this);
 554
 555         if (sm == null) {
 556             throw new ServiceUnavailableException("Switch Manager "
 557                     + RestMessages.SERVICEUNAVAILABLE.toString());
 558         }
 559
 560         if (!sm.getNodes().contains(node)) {
 561             throw new ResourceNotFoundException(node.toString() + " : "
 562                     + RestMessages.NONODE.toString());
 563         }
 564         return node;
 565     }
 566
 567 }