opendaylight/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.core.Context;
  25 import javax.ws.rs.core.MediaType;
  26 import javax.ws.rs.core.Response;
  27 import javax.ws.rs.core.SecurityContext;
  28 import javax.ws.rs.core.UriInfo;
  29 import javax.xml.bind.JAXBElement;
  30
  31 import org.codehaus.enunciate.jaxrs.ResponseCode;
  32 import org.codehaus.enunciate.jaxrs.StatusCodes;
  33 import org.codehaus.enunciate.jaxrs.TypeHint;
  34 import org.opendaylight.controller.containermanager.IContainerManager;
  35 import org.opendaylight.controller.hosttracker.IfIptoHost;
  36 import org.opendaylight.controller.hosttracker.hostAware.HostNodeConnector;
  37 import org.opendaylight.controller.northbound.commons.RestMessages;
  38 import org.opendaylight.controller.northbound.commons.exception.BadRequestException;
  39 import org.opendaylight.controller.northbound.commons.exception.ResourceConflictException;
  40 import org.opendaylight.controller.northbound.commons.exception.ResourceNotFoundException;
  41 import org.opendaylight.controller.northbound.commons.exception.ServiceUnavailableException;
  42 import org.opendaylight.controller.northbound.commons.exception.UnauthorizedException;
  43 import org.opendaylight.controller.northbound.commons.utils.NorthboundUtils;
  44 import org.opendaylight.controller.sal.authorization.Privilege;
  45 import org.opendaylight.controller.sal.core.Node;
  46 import org.opendaylight.controller.sal.core.NodeConnector;
  47 import org.opendaylight.controller.sal.utils.GlobalConstants;
  48 import org.opendaylight.controller.sal.utils.ServiceHelper;
  49 import org.opendaylight.controller.sal.utils.Status;
  50 import org.opendaylight.controller.switchmanager.ISwitchManager;
  51
  52 /**
  53  * Host Tracker Northbound REST APIs.<br>
  54  * This class provides REST APIs to track host location in a network. Host
  55  * Location is represented by Host node connector which is essentially a logical
  56  * entity that represents a Switch/Port. A host is represented by it's
  57  * IP-address and mac-address.
  58  *
  59  * <br>
  60  * <br>
  61  * Authentication scheme : <b>HTTP Basic</b><br>
  62  * Authentication realm : <b>opendaylight</b><br>
  63  * Transport : <b>HTTP and HTTPS</b><br>
  64  * <br>
  65  * HTTPS Authentication is disabled by default. Administrator can enable it in
  66  * tomcat-server.xml after adding a proper keystore / SSL certificate from a
  67  * trusted authority.<br>
  68  * More info :
  69  * http://tomcat.apache.org/tomcat-7.0-doc/ssl-howto.html#Configuration
  70  *
  71  */
  72
  73 @Path("/")
  74 public class HostTrackerNorthbound {
  75
  76     private String username;
  77
  78     @Context
  79     public void setSecurityContext(SecurityContext context) {
  80         if (context != null && context.getUserPrincipal() != null) username = context.getUserPrincipal().getName();
  81     }
  82
  83     protected String getUserName() {
  84         return username;
  85     }
  86
  87     private IfIptoHost getIfIpToHostService(String containerName) {
  88         IContainerManager containerManager = (IContainerManager) ServiceHelper.getGlobalInstance(
  89                 IContainerManager.class, this);
  90         if (containerManager == null) {
  91             throw new ServiceUnavailableException("Container " + RestMessages.SERVICEUNAVAILABLE.toString());
  92         }
  93
  94         boolean found = false;
  95         List<String> containerNames = containerManager.getContainerNames();
  96         for (String cName : containerNames) {
  97             if (cName.trim().equalsIgnoreCase(containerName.trim())) {
  98                 found = true;
  99                 break;
 100             }
 101         }
 102
 103         if (!found) {
 104             throw new ResourceNotFoundException(containerName + " " + RestMessages.NOCONTAINER.toString());
 105         }
 106
 107         IfIptoHost hostTracker = (IfIptoHost) ServiceHelper.getInstance(IfIptoHost.class, containerName, this);
 108         if (hostTracker == null) {
 109             throw new ServiceUnavailableException("Host Tracker " + RestMessages.SERVICEUNAVAILABLE.toString());
 110         }
 111
 112         return hostTracker;
 113     }
 114
 115     private Hosts convertHosts(Set<HostNodeConnector> hostNodeConnectors) {
 116         if(hostNodeConnectors == null) {
 117             return null;
 118         }
 119         Set<HostConfig> hosts = new HashSet<HostConfig>();
 120         for(HostNodeConnector hnc : hostNodeConnectors) {
 121             hosts.add(HostConfig.convert(hnc));
 122         }
 123         return new Hosts(hosts);
 124     }
 125
 126     /**
 127      * Returns a list of all Hosts : both configured via PUT API and dynamically
 128      * learnt on the network.
 129      *
 130      * @param containerName
 131      *            Name of the Container. The Container name for the base
 132      *            controller is "default".
 133      * @return List of Active Hosts.
 134      * <pre>
 135      *
 136      * Example:
 137      *
 138      * RequestURL:
 139      *
 140      * http://localhost:8080/controller/nb/v2/host/default
 141      *
 142      * Response in XML
 143      *
 144      * &lt;list&gt;
 145      * &#x20;&lt;hostConfig&gt;
 146      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 147      * &#x20;&#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 148      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 149      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 150      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 151      * &#x20;&#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 152      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 153      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 154      * &#x20;&lt;/hostConfig&gt;
 155      * &#x20;&lt;hostConfig&gt;
 156      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:02:02&lt;/dataLayerAddress&gt;
 157      * &#x20;&#x20;&lt;networkAddress&gt;2.2.2.2&lt;/networkAddress&gt;
 158      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 159      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:02&lt;/nodeId&gt;
 160      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 161      * &#x20;&#x20;&lt;nodeConnectorId&gt;5&lt;/nodeConnectorId&gt;
 162      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 163      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 164      * &#x20;&lt;/hostConfig&gt;
 165      * &lt;/list&gt;
 166      *
 167      * Response in JSON:
 168      *
 169      * {
 170      * &#x20;"hostConfig":[
 171      * &#x20;&#x20;{
 172      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:01:01",
 173      * &#x20;&#x20;&#x20;"nodeType":"OF",
 174      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:01",
 175      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 176      * &#x20;&#x20;&#x20;"nodeConnectorId":"9",
 177      * &#x20;&#x20;&#x20;"vlan":"0",
 178      * &#x20;&#x20;&#x20;"staticHost":"false",
 179      * &#x20;&#x20;&#x20;"networkAddress":"1.1.1.1"
 180      * &#x20;&#x20;},
 181      * &#x20;&#x20;{
 182      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:02:02",
 183      * &#x20;&#x20;&#x20;"nodeType":"OF",
 184      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:02",
 185      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 186      * &#x20;&#x20;&#x20;"nodeConnectorId":"5",
 187      * &#x20;&#x20;&#x20;"vlan":"0",
 188      * &#x20;&#x20;&#x20;"staticHost":"false",
 189      * &#x20;&#x20;&#x20;"networkAddress":"2.2.2.2"
 190      * &#x20;&#x20;}
 191      * &#x20;]
 192      * }
 193      * </pre>
 194      */
 195     @Path("/{containerName}")
 196     @GET
 197     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 198     @TypeHint(Hosts.class)
 199     @StatusCodes({
 200             @ResponseCode(code = 200, condition = "Operation successful"),
 201             @ResponseCode(code = 404, condition = "The containerName is not found"),
 202             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 203     public Hosts getActiveHosts(@PathParam("containerName") String containerName) {
 204
 205         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 206             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 207                     + containerName);
 208         }
 209         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 210         return convertHosts(hostTracker.getAllHosts());
 211     }
 212
 213     /**
 214      * Returns a list of Hosts that are statically configured and are connected
 215      * to a NodeConnector that is down.
 216      *
 217      * @param containerName
 218      *            Name of the Container. The Container name for the base
 219      *            controller is "default".
 220      * @return List of inactive Hosts.
 221      * <pre>
 222      *
 223      * Example:
 224      *
 225      * RequestURL:
 226      *
 227      * http://localhost:8080/controller/nb/v2/host/default/inactive
 228      *
 229      * Response in XML
 230      *
 231      * &lt;list&gt;
 232      * &#x20;&lt;hostConfig&gt;
 233      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 234      * &#x20;&#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 235      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 236      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 237      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 238      * &#x20;&#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 239      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 240      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 241      * &#x20;&lt;/hostConfig&gt;
 242      * &#x20;&lt;hostConfig&gt;
 243      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:02:02&lt;/dataLayerAddress&gt;
 244      * &#x20;&#x20;&lt;networkAddress&gt;2.2.2.2&lt;/networkAddress&gt;
 245      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 246      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:02&lt;/nodeId&gt;
 247      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 248      * &#x20;&#x20;&lt;nodeConnectorId&gt;5&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      * &lt;/list&gt;
 253      *
 254      * Response in JSON:
 255      *
 256      * {
 257      * &#x20;"hostConfig":[
 258      * &#x20;&#x20;{
 259      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:01:01",
 260      * &#x20;&#x20;&#x20;"nodeType":"OF",
 261      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:01",
 262      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 263      * &#x20;&#x20;&#x20;"nodeConnectorId":"9",
 264      * &#x20;&#x20;&#x20;"vlan":"0",
 265      * &#x20;&#x20;&#x20;"staticHost":"false",
 266      * &#x20;&#x20;&#x20;"networkAddress":"1.1.1.1"
 267      * &#x20;&#x20;},
 268      * &#x20;&#x20;{
 269      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:02:02",
 270      * &#x20;&#x20;&#x20;"nodeType":"OF",
 271      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:02",
 272      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 273      * &#x20;&#x20;&#x20;"nodeConnectorId":"5",
 274      * &#x20;&#x20;&#x20;"vlan":"0",
 275      * &#x20;&#x20;&#x20;"staticHost":"false",
 276      * &#x20;&#x20;&#x20;"networkAddress":"2.2.2.2"
 277      * &#x20;&#x20;}
 278      * &#x20;]
 279      * }
 280      * </pre>
 281      */
 282     @Path("/{containerName}/inactive")
 283     @GET
 284     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 285     @TypeHint(Hosts.class)
 286     @StatusCodes({
 287             @ResponseCode(code = 200, condition = "Operation successful"),
 288             @ResponseCode(code = 404, condition = "The containerName is not found"),
 289             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 290     public Hosts getInactiveHosts(
 291             @PathParam("containerName") String containerName) {
 292         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 293             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 294                     + containerName);
 295         }
 296         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 297         return convertHosts(hostTracker.getInactiveStaticHosts());
 298     }
 299
 300     /**
 301      * Returns a host that matches the IP Address value passed as parameter.
 302      *
 303      * @param containerName
 304      *            Name of the Container. The Container name for the base
 305      *            controller is "default".
 306      * @param networkAddress
 307      *            IP Address being looked up
 308      * @return host that matches the IP Address
 309      * <pre>
 310      *
 311      * Example:
 312      *
 313      * RequestURL:
 314      *
 315      * http://localhost:8080/controller/nb/v2/host/default/1.1.1.1
 316      *
 317      * Response in XML
 318      *
 319      * &lt;hostConfig&gt;
 320      * &#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 321      * &#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 322      * &#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 323      * &#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 324      * &#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 325      * &#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 326      * &#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 327      * &#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 328      * &lt;/hostConfig&gt;
 329      *
 330      * Response in JSON:
 331      *
 332      * {
 333      * &#x20;"dataLayerAddress":"00:00:00:00:01:01",
 334      * &#x20;"nodeType":"OF",
 335      * &#x20;"nodeId":"00:00:00:00:00:00:00:01",
 336      * &#x20;"nodeConnectorType":"OF",
 337      * &#x20;"nodeConnectorId":"9",
 338      * &#x20;"vlan":"0",
 339      * &#x20;"staticHost":"false",
 340      * &#x20;"networkAddress":"1.1.1.1"
 341      * }
 342      * </pre>
 343      */
 344     @Path("/{containerName}/{networkAddress}")
 345     @GET
 346     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 347     @TypeHint(HostConfig.class)
 348     @StatusCodes({
 349             @ResponseCode(code = 200, condition = "Operation successful"),
 350             @ResponseCode(code = 400, condition = "Invalid IP specified in networkAddress parameter"),
 351             @ResponseCode(code = 404, condition = "The containerName is not found"),
 352             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 353     public HostConfig getHostDetails(
 354             @PathParam("containerName") String containerName,
 355             @PathParam("networkAddress") String networkAddress) {
 356         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 357             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 358                     + containerName);
 359         }
 360         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 361
 362         InetAddress ip;
 363         try {
 364             ip = InetAddress.getByName(networkAddress);
 365         } catch (UnknownHostException e) {
 366             throw new BadRequestException(RestMessages.INVALIDADDRESS.toString() + " " + networkAddress);
 367         }
 368         for (HostNodeConnector host : hostTracker.getAllHosts()) {
 369             if (host.getNetworkAddress().equals(ip)) {
 370                 return HostConfig.convert(host);
 371             }
 372         }
 373         throw new ResourceNotFoundException(RestMessages.NOHOST.toString());
 374     }
 375
 376     /**
 377      * Add a Static Host configuration
 378      *
 379      * @param containerName
 380      *            Name of the Container. The Container name for the base
 381      *            controller is "default".
 382      * @param networkAddress
 383      *            Host IP Address
 384      * @param hostConfig
 385      *            Host Config Details
 386      * @return Response as dictated by the HTTP Response Status code
 387      *
 388      * <pre>
 389      *
 390      * Example:
 391      *
 392      * RequestURL:
 393      *
 394      * http://localhost:8080/controller/nb/v2/host/default/1.1.1.1
 395      *
 396      * Request in XML
 397      *
 398      * &lt;hostConfig&gt;
 399      * &#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 400      * &#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 401      * &#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 402      * &#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 403      * &#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 404      * &#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 405      * &#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 406      * &#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 407      * &lt;/hostConfig&gt;
 408      *
 409      * Request in JSON:
 410      *
 411      * {
 412      * &#x20;"dataLayerAddress":"00:00:00:00:01:01",
 413      * &#x20;"nodeType":"OF",
 414      * &#x20;"nodeId":"00:00:00:00:00:00:00:01",
 415      * &#x20;"nodeConnectorType":"OF",
 416      * &#x20;"nodeConnectorId":"9",
 417      * &#x20;"vlan":"0",
 418      * &#x20;"staticHost":"false",
 419      * &#x20;"networkAddress":"1.1.1.1"
 420      * }
 421      * </pre>
 422      */
 423
 424     @Path("/{containerName}/{networkAddress}")
 425     @PUT
 426     @Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 427     @StatusCodes({
 428             @ResponseCode(code = 201, condition = "Static host created successfully"),
 429             @ResponseCode(code = 400, condition = "Invalid parameters specified, see response body for details"),
 430             @ResponseCode(code = 404, condition = "The container or resource is not found"),
 431             @ResponseCode(code = 409, condition = "Resource conflict, see response body for details"),
 432             @ResponseCode(code = 503, condition = "One or more of Controller services are unavailable") })
 433     public Response addHost(@Context UriInfo uriInfo, @PathParam("containerName") String containerName,
 434             @PathParam("networkAddress") String networkAddress,
 435             @TypeHint(HostConfig.class) JAXBElement<HostConfig> hostConfig) {
 436
 437         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.WRITE, this)) {
 438             return Response.status(Response.Status.UNAUTHORIZED)
 439                     .entity("User is not authorized to perform this operation on container " + containerName)
 440                     .build();
 441         }
 442         handleDefaultDisabled(containerName);
 443
 444         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 445
 446         HostConfig hc = hostConfig.getValue();
 447         if (!networkAddress.equals(hc.getNetworkAddress())) {
 448             return Response.status(Response.Status.CONFLICT)
 449                     .entity("Resource name in config object doesn't match URI")
 450                     .build();
 451         }
 452         if (!hc.isStaticHost()) {
 453             return Response.status(Response.Status.BAD_REQUEST)
 454                     .entity("Can only add static host.")
 455                     .build();
 456         }
 457         Node node = handleNodeAvailability(containerName, hc.getNodeType(), hc.getNodeId());
 458         NodeConnector nc = NodeConnector.fromStringNoNode(hc.getNodeConnectorType(), hc.getNodeConnectorId(), node);
 459
 460         Status status = hostTracker.addStaticHost(networkAddress, hc.getDataLayerAddress(), nc, hc.getVlan());
 461         if (status.isSuccess()) {
 462             NorthboundUtils.auditlog("Static Host", username, "added", networkAddress, containerName);
 463             return Response.created(uriInfo.getRequestUri()).build();
 464         }
 465
 466         return NorthboundUtils.getResponse(status);
 467     }
 468
 469     /**
 470      * Delete a Static Host configuration
 471      *
 472      * @param containerName
 473      *            Name of the Container. The Container name for the base
 474      *            controller is "default".
 475      * @param networkAddress
 476      *            IP Address
 477      * @return Response as dictated by the HTTP Response code.
 478      */
 479
 480     @Path("/{containerName}/{networkAddress}")
 481     @DELETE
 482     @Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 483     @StatusCodes({
 484             @ResponseCode(code = 204, condition = "Static host deleted successfully"),
 485             @ResponseCode(code = 404, condition = "The container or a specified resource was not found"),
 486             @ResponseCode(code = 406, condition = "Cannot operate on Default Container when other Containers are active"),
 487             @ResponseCode(code = 503, condition = "One or more of Controller service is unavailable") })
 488     public Response deleteHost(
 489             @PathParam(value = "containerName") String containerName,
 490             @PathParam(value = "networkAddress") String networkAddress) {
 491
 492         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.WRITE, this)) {
 493             return Response.status(Response.Status.UNAUTHORIZED)
 494                     .entity("User is not authorized to perform this operation on container " + containerName)
 495                     .build();
 496         }
 497         handleDefaultDisabled(containerName);
 498         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 499
 500         Status status = hostTracker.removeStaticHost(networkAddress);
 501         if (status.isSuccess()) {
 502             NorthboundUtils.auditlog("Static Host", username, "removed", networkAddress, containerName);
 503             return Response.noContent().build();
 504         }
 505         return NorthboundUtils.getResponse(status);
 506
 507     }
 508
 509     private void handleDefaultDisabled(String containerName) {
 510         IContainerManager containerManager = (IContainerManager) ServiceHelper
 511                 .getGlobalInstance(IContainerManager.class, this);
 512         if (containerManager == null) {
 513             throw new ServiceUnavailableException(
 514                     RestMessages.SERVICEUNAVAILABLE.toString());
 515         }
 516         if (containerName.equals(GlobalConstants.DEFAULT.toString())
 517                 && containerManager.hasNonDefaultContainer()) {
 518             throw new ResourceConflictException(
 519                     RestMessages.DEFAULTDISABLED.toString());
 520         }
 521     }
 522
 523     private Node handleNodeAvailability(String containerName, String nodeType, String nodeId) {
 524
 525         Node node = Node.fromString(nodeType, nodeId);
 526         if (node == null) {
 527             throw new ResourceNotFoundException(nodeId + " : "
 528                     + RestMessages.NONODE.toString());
 529         }
 530
 531         ISwitchManager sm = (ISwitchManager) ServiceHelper.getInstance(
 532                 ISwitchManager.class, containerName, this);
 533
 534         if (sm == null) {
 535             throw new ServiceUnavailableException("Switch Manager "
 536                     + RestMessages.SERVICEUNAVAILABLE.toString());
 537         }
 538
 539         if (!sm.getNodes().contains(node)) {
 540             throw new ResourceNotFoundException(node.toString() + " : "
 541                     + RestMessages.NONODE.toString());
 542         }
 543         return node;
 544     }
 545
 546 }