cloud/interface/src/main/java/org/iotivity/cloud/ciserver/resources/proxy/rd/ResourcePresence.java

   1 /*
   2  * //******************************************************************
   3  * //
   4  * // Copyright 2016 Samsung Electronics All Rights Reserved.
   5  * //
   6  * //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
   7  * //
   8  * // Licensed under the Apache License, Version 2.0 (the "License");
   9  * // you may not use this file except in compliance with the License.
  10  * // You may obtain a copy of the License at
  11  * //
  12  * //      http://www.apache.org/licenses/LICENSE-2.0
  13  * //
  14  * // Unless required by applicable law or agreed to in writing, software
  15  * // distributed under the License is distributed on an "AS IS" BASIS,
  16  * // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * // See the License for the specific language governing permissions and
  18  * // limitations under the License.
  19  * //
  20  * //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  21  */
  22 package org.iotivity.cloud.ciserver.resources.proxy.rd;
  23
  24 import java.util.Arrays;
  25 import java.util.HashMap;
  26 import java.util.List;
  27
  28 import org.iotivity.cloud.base.connector.ConnectorPool;
  29 import org.iotivity.cloud.base.device.Device;
  30 import org.iotivity.cloud.base.device.IRequestChannel;
  31 import org.iotivity.cloud.base.device.IResponseEventHandler;
  32 import org.iotivity.cloud.base.exception.ClientException;
  33 import org.iotivity.cloud.base.exception.ServerException;
  34 import org.iotivity.cloud.base.protocols.IRequest;
  35 import org.iotivity.cloud.base.protocols.IResponse;
  36 import org.iotivity.cloud.base.protocols.MessageBuilder;
  37 import org.iotivity.cloud.base.protocols.enums.RequestMethod;
  38 import org.iotivity.cloud.base.resource.Resource;
  39 import org.iotivity.cloud.ciserver.Constants;
  40 import org.iotivity.cloud.util.Cbor;
  41
  42 /**
  43  *
  44  * This class provides a set of APIs to send requests about resource presence to
  45  * resource directory
  46  *
  47  */
  48
  49 public class ResourcePresence extends Resource {
  50     private Cbor<HashMap<String, Object>> mCbor     = new Cbor<>();
  51
  52     public ResourcePresence() {
  53         super(Arrays.asList(Constants.PREFIX_OIC, Constants.RES_PRESENCE_URI));
  54     }
  55
  56     class AccountReceiveHandler implements IResponseEventHandler {
  57
  58         private Device   mSrcDevice;
  59         private IRequest mRequest;
  60
  61         public AccountReceiveHandler(IRequest request, Device srcDevice) {
  62             mSrcDevice = srcDevice;
  63             mRequest = request;
  64         }
  65
  66         @Override
  67         public void onResponseReceived(IResponse response)
  68                 throws ClientException {
  69             switch (response.getStatus()) {
  70                 case CONTENT:
  71                     HashMap<String, Object> payloadData = mCbor
  72                             .parsePayloadFromCbor(response.getPayload(),
  73                                     HashMap.class);
  74
  75                     String additionalQuery = makeAdditionalQuery(payloadData,
  76                             mSrcDevice.getDeviceId());
  77                     if (additionalQuery != null) {
  78                         String uriQuery = additionalQuery.toString()
  79                                 + (mRequest.getUriQuery() != null
  80                                         ? (";" + mRequest.getUriQuery()) : "");
  81                         mRequest = MessageBuilder.modifyRequest(mRequest, null,
  82                                 uriQuery, null, null);
  83
  84                         ConnectorPool.getConnection("rd").sendRequest(mRequest, mSrcDevice);
  85                     }
  86                     break;
  87
  88                 default:
  89                     mSrcDevice.sendResponse(response);
  90             }
  91         }
  92
  93         private String makeAdditionalQuery(HashMap<String, Object> payloadData,
  94                 String did) {
  95
  96             StringBuilder additionalQuery = new StringBuilder();
  97
  98             List<String> deviceList = getResponseDeviceList(payloadData);
  99
 100             if (deviceList.isEmpty()) {
 101                 return null;
 102             }
 103
 104             int index = deviceList.size();
 105             for (String device : deviceList) {
 106                 additionalQuery.append(Constants.REQ_DEVICE_ID + "=" + device);
 107                 if (--index > 0) {
 108                     additionalQuery.append(";");
 109                 }
 110             }
 111             return additionalQuery.toString();
 112         }
 113
 114         @SuppressWarnings("unchecked")
 115         private List<String> getResponseDeviceList(
 116                 HashMap<String, Object> payloadData) {
 117             List<String> deviceList = (List<String>) payloadData
 118                     .get(Constants.REQ_DEVICE_LIST);
 119
 120             return deviceList;
 121         }
 122     }
 123
 124     @Override
 125     public void onDefaultRequestReceived(Device srcDevice, IRequest request)
 126             throws ServerException {
 127         StringBuffer additionalQuery = new StringBuffer();
 128         additionalQuery.append(Constants.USER_ID + "=" + srcDevice.getUserId());
 129         additionalQuery.append(";");
 130         additionalQuery.append(
 131                 Constants.REQ_MEMBER_LIST + "=" + srcDevice.getUserId());
 132
 133         String uriQuery = additionalQuery.toString()
 134                 + (request.getUriQuery() != null ? (";" + request.getUriQuery())
 135                         : "");
 136         StringBuffer uriPath = new StringBuffer();
 137         uriPath.append(Constants.PREFIX_OIC + "/");
 138         uriPath.append(Constants.ACL_URI + "/");
 139         uriPath.append(Constants.GROUP_URI + "/");
 140         uriPath.append(srcDevice.getUserId());
 141
 142         IRequest requestToAS = MessageBuilder.createRequest(RequestMethod.GET,
 143                 uriPath.toString(), uriQuery);
 144
 145         ConnectorPool.getConnection("account").sendRequest(requestToAS,
 146                 new AccountReceiveHandler(request, srcDevice));
 147     }
 148 }