From 589c6049fce2d74618bd5b6cd1e2c00b6c79365f Mon Sep 17 00:00:00 2001
From: Omkar Hegde <omkar.m.hegde@intel.com>
Date: Tue, 21 Jul 2015 15:17:05 -0700
Subject: [PATCH] Default entity handler for collections

Adding default entity handler for collection C samples
in the case when the resource does not exist. This change
fixes IOT-628.

Change-Id: I4f060a856fd9bb712fc145a5c98081ecbe1fec7e
Signed-off-by: Omkar Hegde <omkar.m.hegde@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/1803
Reviewed-by: Joseph Morrow <joseph.l.morrow@intel.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Erich Keane <erich.keane@intel.com>
---
 .../linux/SimpleClientServer/occlientcoll.cpp      |  2 +
 .../linux/SimpleClientServer/ocservercoll.cpp      | 53 ++++++++++++++++++++++
 2 files changed, 55 insertions(+)

diff --git a/resource/csdk/stack/samples/linux/SimpleClientServer/occlientcoll.cpp b/resource/csdk/stack/samples/linux/SimpleClientServer/occlientcoll.cpp
index 8c4ce40..94e9e14 100644
--- a/resource/csdk/stack/samples/linux/SimpleClientServer/occlientcoll.cpp
+++ b/resource/csdk/stack/samples/linux/SimpleClientServer/occlientcoll.cpp
@@ -227,6 +227,8 @@ OCStackApplicationResult discoveryReqCB(void* ctx, OCDoHandle handle,
             clientResponse->devAddr.port);
     OC_LOG_PAYLOAD(INFO, TAG, clientResponse->payload);
 
+    OC_CONNTYPE = clientResponse->connType;
+
     if(TEST == TEST_UNKNOWN_RESOURCE_GET_DEFAULT || TEST == TEST_UNKNOWN_RESOURCE_GET_BATCH ||\
             TEST == TEST_UNKNOWN_RESOURCE_GET_LINK_LIST)
     {
diff --git a/resource/csdk/stack/samples/linux/SimpleClientServer/ocservercoll.cpp b/resource/csdk/stack/samples/linux/SimpleClientServer/ocservercoll.cpp
index 86d79b5..d3fed5a 100644
--- a/resource/csdk/stack/samples/linux/SimpleClientServer/ocservercoll.cpp
+++ b/resource/csdk/stack/samples/linux/SimpleClientServer/ocservercoll.cpp
@@ -103,6 +103,57 @@ PrintReceivedMsgInfo(OCEntityHandlerFlag flag, OCEntityHandlerRequest * ehReques
             typeOfMethod);
 }
 
+//The only case when this entity handler is for a non-existing resource.
+OCEntityHandlerResult
+OCDeviceEntityHandlerCb (OCEntityHandlerFlag flag,
+        OCEntityHandlerRequest *entityHandlerRequest, char* uri, void* callbackParam)
+{
+    OC_LOG_V(INFO, TAG, "Inside device default entity handler - flags: 0x%x, uri: %s", flag, uri);
+
+    OCEntityHandlerResult ehResult = OC_EH_OK;
+    OCEntityHandlerResponse response;
+
+    if (!entityHandlerRequest)
+    {
+        OC_LOG(ERROR, TAG, "Invalid request pointer");
+        return OC_EH_ERROR;
+    }
+
+    if (entityHandlerRequest->resource == NULL)
+    {
+        OC_LOG(INFO, TAG, "Received request from client to a non-existing resource");
+        ehResult = OC_EH_RESOURCE_NOT_FOUND;
+    }
+    else
+    {
+        OC_LOG_V(INFO, TAG, "Device Handler: Received unsupported request from client %d",
+                        entityHandlerRequest->method);
+        ehResult = OC_EH_ERROR;
+    }
+
+    if (!((ehResult == OC_EH_ERROR) || (ehResult == OC_EH_FORBIDDEN)))
+    {
+        // Format the response.  Note this requires some info about the request
+        response.requestHandle = entityHandlerRequest->requestHandle;
+        response.resourceHandle = entityHandlerRequest->resource;
+        response.ehResult = ehResult;
+        response.payload = nullptr;
+        response.numSendVendorSpecificHeaderOptions = 0;
+        memset(response.sendVendorSpecificHeaderOptions,
+                0, sizeof response.sendVendorSpecificHeaderOptions);
+        // Indicate that response is NOT in a persistent buffer
+        response.persistentBufferFlag = 0;
+
+        // Send the response
+        if (OCDoResponse(&response) != OC_STACK_OK)
+        {
+            OC_LOG(ERROR, TAG, "Error sending response");
+            ehResult = OC_EH_ERROR;
+        }
+    }
+    return ehResult;
+}
+
 OCEntityHandlerResult OCEntityHandlerRoomCb(OCEntityHandlerFlag flag,
                                             OCEntityHandlerRequest * ehRequest,
                                             void* callback)
@@ -456,6 +507,8 @@ int main(int argc, char* argv[])
         return 0;
     }
 
+    OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandlerCb, NULL);
+
     /*
      * Declare and create the example resource: light
      */
-- 
2.7.4