Fix getGroupHasDeviceTypes API

components/device-mgt/org.wso2.carbon.device.mgt.api/src/main/java/org/wso2/carbon/device/mgt/jaxrs/service/api/GroupManagementService.java

@@ -1193,7 +1193,7 @@ public interface GroupManagementService {
                     boolean requireGroupProps);
 
     @Path("/device-types")
-    @GET
+    @POST
     @ApiOperation(
             produces = MediaType.APPLICATION_JSON,
             httpMethod = HTTPConstants.HEADER_GET,
@@ -1242,9 +1242,8 @@ public interface GroupManagementService {
     Response getGroupHasDeviceTypes(
             @ApiParam(
                     name = "identifiers",
-                    value = "list of identifiers.",
+                    value = "GET list of identifiers.",
                     required = true)
-            @QueryParam("identifiers")
             List<String> identifiers);
 
 }

components/device-mgt/org.wso2.carbon.device.mgt.api/src/main/java/org/wso2/carbon/device/mgt/jaxrs/service/impl/GroupManagementServiceImpl.java

@@ -67,6 +67,7 @@ import org.wso2.carbon.policy.mgt.common.PolicyManagementException;
 
 import javax.ws.rs.DefaultValue;
 import javax.ws.rs.GET;
+import javax.ws.rs.POST;
 import javax.ws.rs.Path;
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.Response;
@@ -430,12 +431,10 @@ public class GroupManagementServiceImpl implements GroupManagementService {
         }
     }
 
-    @GET
+    @POST
     @Path("/device-types")
     @Override
-    public Response getGroupHasDeviceTypes(@QueryParam("identifiers") List<String> identifiers) {
-
-
+    public Response getGroupHasDeviceTypes(List<String> identifiers) {
         try {
             DeviceTypesOfGroups deviceTypesOfGroups = DeviceMgtAPIUtils.getGroupManagementProviderService()
                     .getDeviceTypesOfGroups(identifiers);
@@ -446,8 +445,6 @@ public class GroupManagementServiceImpl implements GroupManagementService {
             log.error(msg, e);
             return Response.status(Response.Status.BAD_REQUEST).entity(msg).build();
         }
-
-
     }
 
 }

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/GroupManagementProviderService.java

@@ -336,5 +336,11 @@ public interface GroupManagementProviderService {
      */
     boolean isDeviceMappedToGroup(int groupId, DeviceIdentifier deviceIdentifier) throws GroupManagementException;
 
+    /**
+     *
+     * @param identifiers identifiers of groups
+     * @return whether the groups has android, iOS, Windows device types
+     * @throws GroupManagementException
+     */
     DeviceTypesOfGroups getDeviceTypesOfGroups(List<String> identifiers) throws GroupManagementException;
 }