New Activity Info Provider API resource which accept an array of activity IDs to get activity information (#1161)

* New Activity Info Provider API resource which accept an array of activity IDs to get activity information

* Modifications to the new activity info provider api

* Add acceptable activity list count validation

* Modifications to the new activity provider API resource

* Added license header to the test class

* Modifications to the new activity provider api

components/device-mgt/org.wso2.carbon.device.mgt.api/src/main/java/org/wso2/carbon/device/mgt/jaxrs/common/ActivityIdList.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 Inc. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.wso2.carbon.device.mgt.jaxrs.common;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class ActivityIdList {
+
+    private String ids;
+    private List<String> idList;
+
+    public ActivityIdList(String ids) {
+        this.ids = ids;
+        if (ids != null) {
+            String[] splits = ids.split(",");
+            if (splits.length > 0 && splits.length < 11 && splits[0] != null && !splits[0].isEmpty()) {
+                idList = Arrays.asList(splits);
+            }
+        }
+    }
+
+    public List<String> getIdList() {
+        return idList;
+    }
+
+    public String getIds() {
+        return ids;
+    }
+}

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

@@ -18,16 +18,33 @@
  */
 package org.wso2.carbon.device.mgt.jaxrs.service.api;
 
-import io.swagger.annotations.*;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import io.swagger.annotations.ApiResponse;
+import io.swagger.annotations.ApiResponses;
+import io.swagger.annotations.Extension;
+import io.swagger.annotations.ExtensionProperty;
+import io.swagger.annotations.Info;
+import io.swagger.annotations.ResponseHeader;
+import io.swagger.annotations.SwaggerDefinition;
+import io.swagger.annotations.Tag;
 import org.wso2.carbon.apimgt.annotations.api.Scope;
 import org.wso2.carbon.apimgt.annotations.api.Scopes;
 import org.wso2.carbon.device.mgt.common.operation.mgt.Activity;
 import org.wso2.carbon.device.mgt.jaxrs.beans.ActivityList;
 import org.wso2.carbon.device.mgt.jaxrs.beans.ErrorResponse;
+import org.wso2.carbon.device.mgt.jaxrs.common.ActivityIdList;
 import org.wso2.carbon.device.mgt.jaxrs.util.Constants;
 
 import javax.validation.constraints.Size;
-import javax.ws.rs.*;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.HeaderParam;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 
@@ -139,6 +156,68 @@ public interface ActivityInfoProviderService {
                     required = false)
             @HeaderParam("If-Modified-Since") String ifModifiedSince);
 
+    @GET
+    @Path("/ids")
+    @ApiOperation(
+            produces = MediaType.APPLICATION_JSON,
+            httpMethod = "GET",
+            value = "Getting Details of activities for given set of activity/operation Ids",
+            notes = "Retrieve the details of specific activity/operation Ids, such as the meta information of " +
+                    "an operation, including the responses from the devices.",
+            tags = "Activity Info Provider",
+            extensions = {
+                    @Extension(properties = {
+                            @ExtensionProperty(name = Constants.SCOPE, value = "perm:get-activity")
+                    })
+            }
+    )
+    @ApiResponses(value = {
+            @ApiResponse(
+                    code = 200,
+                    message = "OK. \n Successfully fetched the activity details.",
+                    response = Activity.class,
+                    responseHeaders = {
+                            @ResponseHeader(
+                                    name = "Content-Type",
+                                    description = "The content type of the body"),
+                            @ResponseHeader(
+                                    name = "ETag",
+                                    description = "Entity Tag of the response resource.\n" +
+                                            "Used by caches, or in conditional requests."),
+                            @ResponseHeader(
+                                    name = "Last-Modified",
+                                    description = "Date and time the resource was last modified.\n" +
+                                            "Used by caches, or in conditional requests."),
+                    }),
+            @ApiResponse(
+                    code = 400,
+                    message = "Bad Request. \n Activity Ids shouldn't be empty",
+                    response = ErrorResponse.class),
+            @ApiResponse(
+                    code = 401,
+                    message = "Unauthorized. \n Unauthorized operation! Only admin role can perform this "
+                            + "operation."),
+            @ApiResponse(
+                    code = 404,
+                    message = "Not Found. \n No activity found with the given IDs.",
+                    response = ErrorResponse.class),
+            @ApiResponse(
+                    code = 406,
+                    message = "Not Acceptable.\n The requested media type is not supported"),
+            @ApiResponse(
+                    code = 500,
+                    message = "Internal Server Error. \n ErrorResponse occurred while fetching the activity "
+                            + "list for the supplied ids.",
+                    response = ErrorResponse.class)
+    })
+    Response getActivities(
+            @ApiParam(
+                    name = "ids",
+                    value = "Comma separated activity/operation ids",
+                    required = true,
+                    defaultValue = "ACTIVITY_0")
+            @QueryParam("ids") ActivityIdList activityIdList);
+
 
     @GET
     @Path("/{id}/{devicetype}/{deviceid}")

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

@@ -26,13 +26,20 @@ import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManagementExcept
 import org.wso2.carbon.device.mgt.core.service.DeviceManagementProviderService;
 import org.wso2.carbon.device.mgt.jaxrs.beans.ActivityList;
 import org.wso2.carbon.device.mgt.jaxrs.beans.ErrorResponse;
+import org.wso2.carbon.device.mgt.jaxrs.common.ActivityIdList;
 import org.wso2.carbon.device.mgt.jaxrs.service.api.ActivityInfoProviderService;
 import org.wso2.carbon.device.mgt.jaxrs.service.impl.util.RequestValidationUtil;
 import org.wso2.carbon.device.mgt.jaxrs.util.DeviceMgtAPIUtils;
 import org.wso2.carbon.user.api.UserStoreException;
 
 import javax.validation.constraints.Size;
-import javax.ws.rs.*;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.HeaderParam;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 import java.text.ParseException;
@@ -79,6 +86,55 @@ public class ActivityProviderServiceImpl implements ActivityInfoProviderService
         }
     }
 
+    @GET
+    @Override
+    @Path("/ids")
+    public Response getActivities(@QueryParam("ids") ActivityIdList activityIdList) {
+
+        List<String> idList;
+        idList = activityIdList.getIdList();
+        if (idList == null || idList.isEmpty()) {
+            String msg = "Activity Ids shouldn't be empty";
+            log.error(msg);
+            return Response.status(400).entity(
+                    new ErrorResponse.ErrorResponseBuilder().setMessage(msg).build()).build();
+        }
+        Response validationFailedResponse = validateAdminUser();
+        if (validationFailedResponse == null) {
+            List<Activity> activities;
+            ActivityList activityList = new ActivityList();
+            DeviceManagementProviderService dmService;
+            try {
+                for (String id : idList) {
+                    RequestValidationUtil.validateActivityId(id);
+                }
+                dmService = DeviceMgtAPIUtils.getDeviceManagementService();
+                activities = dmService.getOperationByActivityIds(idList);
+                if (!activities.isEmpty()) {
+                    activityList.setList(activities);
+                    int count = activities.size();
+                    if (log.isDebugEnabled()) {
+                        log.debug("Number of activities : " + count);
+                    }
+                    activityList.setCount(count);
+                    return Response.ok().entity(activityList).build();
+                } else {
+                    String msg = "No activity found with the given IDs.";
+                    log.error(msg);
+                    return Response.status(404).entity(
+                            new ErrorResponse.ErrorResponseBuilder().setMessage(msg).build()).build();
+                }
+            } catch (OperationManagementException e) {
+                String msg = "ErrorResponse occurred while fetching the activity list for the supplied ids.";
+                log.error(msg, e);
+                return Response.serverError().entity(
+                        new ErrorResponse.ErrorResponseBuilder().setMessage(msg).build()).build();
+            }
+        } else {
+            return validationFailedResponse;
+        }
+    }
+
 
     @GET
     @Override

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

@@ -188,24 +188,24 @@ public class RequestValidationUtil {
 
     public static void validateActivityId(String activityId) {
         if (activityId == null || activityId.isEmpty()) {
-            throw new InputValidationException(
-                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage("Activity Id " +
-                            "cannot be null or empty. It should be in the form of " +
+            throw new InputValidationException(new ErrorResponse.ErrorResponseBuilder().setCode(400l)
+                    .setMessage("Activity Id cannot be null or empty. It should be in the form of " +
                             "'[ACTIVITY][_][any-positive-integer]' instead").build());
         }
         String[] splits = activityId.split("_");
-        if (splits == null || splits[0] == null || splits[0].isEmpty() || !"ACTIVITY".equals(splits[0]) ||
-                splits[1] == null || splits[0].isEmpty()) {
-            throw new InputValidationException(
-                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage(
-                            "Activity Id should be in the form of '[ACTIVITY][_][any-positive-integer]'").build());
-        }
-        try {
-            Long.parseLong(splits[1]);
-        } catch (NumberFormatException e) {
-            throw new InputValidationException(
-                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage(
-                            "Activity Id should be in the form of '[ACTIVITY][_][any-positive-integer]'").build());
+        if (splits.length > 1 && splits[0] != null && !splits[0].isEmpty() && "ACTIVITY".equals(splits[0])) {
+            try {
+                Long.parseLong(splits[1]);
+            } catch (NumberFormatException e) {
+                throw new InputValidationException(new ErrorResponse.ErrorResponseBuilder().setCode(400l)
+                        .setMessage(
+                                "Activity Id should be in the form of '[ACTIVITY][_][any-positive-integer]'")
+                        .build());
+            }
+        } else {
+            throw new InputValidationException(new ErrorResponse.ErrorResponseBuilder().setCode(400l)
+                    .setMessage("Activity Id should be in the form of '[ACTIVITY][_][any-positive-integer]'")
+                    .build());
         }
     }
 

components/device-mgt/org.wso2.carbon.device.mgt.api/src/test/java/org/wso2/carbon/device/mgt/jaxrs/service/impl/ActivityProviderServiceImplTest.java

@@ -0,0 +1,245 @@
+/*
+ *   Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *   WSO2 Inc. licenses this file to you under the Apache License,
+ *   Version 2.0 (the "License"); you may not use this file except
+ *   in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing,
+ *   software distributed under the License is distributed on an
+ *   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *   KIND, either express or implied.  See the License for the
+ *   specific language governing permissions and limitations
+ *   under the License.
+ *
+ */
+
+package org.wso2.carbon.device.mgt.jaxrs.service.impl;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.mockito.Mockito;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PowerMockIgnore;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.core.classloader.annotations.SuppressStaticInitializationFor;
+import org.testng.Assert;
+import org.testng.IObjectFactory;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.ObjectFactory;
+import org.testng.annotations.Test;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
+import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.authorization.DeviceAccessAuthorizationService;
+import org.wso2.carbon.device.mgt.common.operation.mgt.Activity;
+import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManagementException;
+import org.wso2.carbon.device.mgt.core.authorization.DeviceAccessAuthorizationServiceImpl;
+import org.wso2.carbon.device.mgt.core.service.DeviceManagementProviderService;
+import org.wso2.carbon.device.mgt.core.service.DeviceManagementProviderServiceImpl;
+import org.wso2.carbon.device.mgt.jaxrs.common.ActivityIdList;
+import org.wso2.carbon.device.mgt.jaxrs.service.api.ActivityInfoProviderService;
+import org.wso2.carbon.device.mgt.jaxrs.service.api.DeviceManagementService;
+import org.wso2.carbon.device.mgt.jaxrs.service.impl.util.RequestValidationUtil;
+import org.wso2.carbon.device.mgt.jaxrs.util.DeviceMgtAPIUtils;
+import org.wso2.carbon.policy.mgt.core.util.PolicyManagerUtil;
+
+import javax.ws.rs.core.Response;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.mockito.MockitoAnnotations.initMocks;
+
+/**
+ * This is a test class for {@link ActivityProviderServiceImpl}.
+ */
+@PowerMockIgnore("javax.ws.rs.*")
+@SuppressStaticInitializationFor({ "org.wso2.carbon.device.mgt.jaxrs.util.DeviceMgtAPIUtils",
+        "org.wso2.carbon.context.CarbonContext", "org.wso2.carbon.context.PrivilegedCarbonContext" })
+@PrepareForTest({ DeviceMgtAPIUtils.class, PolicyManagerUtil.class, PrivilegedCarbonContext.class })
+public class ActivityProviderServiceImplTest {
+
+    private static final Log log = LogFactory.getLog(ActivityProviderServiceImplTest.class);
+    private static final String TEST_ACTIVITY_ID = "ACTIVITY_1";
+    private static final String IF_MODIFIED_SINCE = "01Aug2018";
+    private static final String DEVICE_TYPE = "android";
+    private static final String DEVICE_ID = "1234567";
+    private static final String OPERATION_CODE = "111222";
+    private static final int OFFSET = 0;
+    private static final int LIMIT = 5;
+    private static final String TEST_ACTIVITY_ID_LIST = "ACTIVITY_1,ACTIVITY_2";
+    private static final List<String> idList = new ArrayList();
+    private static final List<Activity> activities = new ArrayList<>();
+    private static final ActivityIdList activityList = new ActivityIdList(TEST_ACTIVITY_ID_LIST);
+    private static final ActivityIdList activityListEmpty = new ActivityIdList("");
+
+    private List<String> idList1;
+    private Activity activity;
+    private List<Activity> activities1;
+
+    private DeviceManagementService deviceManagementService;
+    private DeviceAccessAuthorizationService deviceAccessAuthorizationService;
+    private DeviceManagementProviderService deviceManagementProviderService;
+    private ActivityInfoProviderService activityInfoProviderService;
+    private DeviceIdentifier deviceIdentifier;
+
+    @ObjectFactory
+    public IObjectFactory getObjectFactory() {
+        return new org.powermock.modules.testng.PowerMockObjectFactory();
+    }
+
+    @BeforeClass
+    public void init() {
+        log.info("Initializing ActivityProviderServiceImplTest tests");
+        initMocks(this);
+        this.deviceManagementProviderService = Mockito.mock(DeviceManagementProviderServiceImpl.class,
+                Mockito.RETURNS_MOCKS);
+        this.deviceIdentifier = new DeviceIdentifier();
+        this.deviceManagementService = new DeviceManagementServiceImpl();
+        this.activityInfoProviderService = new ActivityProviderServiceImpl();
+        this.deviceAccessAuthorizationService = Mockito.mock(DeviceAccessAuthorizationServiceImpl.class);
+        idList.add("ACTIVITY_1");
+        idList.add("ACTIVITY_2");
+        this.activity = new Activity();
+        Activity activity1 = new Activity();
+        Activity activity2 = new Activity();
+        activity1.setActivityId("ACTIVITY_1");
+        activity2.setActivityId("ACTIVITY_2");
+        activities.add(activity1);
+        activities.add(activity2);
+    }
+
+    @Test(description =
+            "This method tests  getting details of an activity with an admin user with an existing"
+                    + " activity Id")
+    public void testGetActivitiesWithValidAdminUserWithValidId() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(true);
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(this.deviceManagementProviderService.getOperationByActivityId(TEST_ACTIVITY_ID))
+                .thenReturn(activity);
+        Response response = this.activityInfoProviderService.getActivity(TEST_ACTIVITY_ID, IF_MODIFIED_SINCE);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.OK.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests getting details of an activity with an invalid admin user")
+    public void testGetActivitiesWithInvalidAdminUserWithValidId() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(false);
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(this.deviceManagementProviderService.getOperationByActivityId(TEST_ACTIVITY_ID))
+                .thenReturn(activity);
+        Response response = this.activityInfoProviderService.getActivity(TEST_ACTIVITY_ID, IF_MODIFIED_SINCE);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.UNAUTHORIZED.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests getting details of an activity which does not exists")
+    public void testGetActivitiesWithNonExistingActivityID() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(true);
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(this.deviceManagementProviderService.getOperationByActivityId(TEST_ACTIVITY_ID))
+                .thenReturn(null);
+        Response response = this.activityInfoProviderService.getActivity(TEST_ACTIVITY_ID, IF_MODIFIED_SINCE);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.NOT_FOUND.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests the getActivity method under negative conditions.")
+    public void testGetActivitiesWithOperationManagementException() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(true);
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(this.deviceManagementProviderService.getOperationByActivityId(Mockito.any())).thenThrow(
+                new OperationManagementException());
+        Response response = this.activityInfoProviderService.getActivity(TEST_ACTIVITY_ID, IF_MODIFIED_SINCE);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.INTERNAL_SERVER_ERROR.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests getting details of list of given activity IDs")
+    public void testGetActivitiesWithActivityIdList() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(true);
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(this.deviceManagementProviderService.getOperationByActivityIds(idList)).thenReturn(
+                activities);
+        Response response = this.activityInfoProviderService.getActivities(activityList);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.OK.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests trying to get details activity IDs when call with empty list")
+    public void testGetActivitiesWithEmptyActivityIdList() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(true);
+        Response response = this.activityInfoProviderService.getActivities(activityListEmpty);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.BAD_REQUEST.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests trying to get details of a list activity IDs which does not exists")
+    public void testGetActivitiesWithNonExistingActivityIdList() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(true);
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(this.deviceManagementProviderService.getOperationByActivityIds(idList1)).thenReturn(
+                activities1);
+        Response response = this.activityInfoProviderService.getActivities(activityList);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.NOT_FOUND.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests  getting details of an activity for a given device")
+    public void testGetActivitiesByDevice() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(this.deviceManagementProviderService
+                .getOperationByActivityIdAndDevice(TEST_ACTIVITY_ID, deviceIdentifier)).thenReturn(activity);
+        Response response = this.activityInfoProviderService.getActivityByDevice(TEST_ACTIVITY_ID,
+                DEVICE_TYPE, DEVICE_ID, IF_MODIFIED_SINCE);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.OK.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests getting details of an activity for a given device")
+    public void testGetActivities() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(true);
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(
+                this.deviceManagementProviderService.getFilteredActivities(OPERATION_CODE, OFFSET, LIMIT))
+                .thenReturn(activities);
+        Response response = this.activityInfoProviderService.getActivities(OPERATION_CODE, OFFSET, LIMIT);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.OK.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+    @Test(description = "This method tests getting details of an activity for a given device")
+    public void testGetActivitiesForInvalidUser() throws OperationManagementException {
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "isAdmin")).toReturn(false);
+        PowerMockito.stub(PowerMockito.method(RequestValidationUtil.class, "validateActivityId"));
+        PowerMockito.stub(PowerMockito.method(DeviceMgtAPIUtils.class, "getDeviceManagementService"))
+                .toReturn(this.deviceManagementProviderService);
+        Mockito.when(
+                this.deviceManagementProviderService.getFilteredActivities(OPERATION_CODE, OFFSET, LIMIT))
+                .thenReturn(activities);
+        Response response = this.activityInfoProviderService.getActivities(OPERATION_CODE, OFFSET, LIMIT);
+        Assert.assertNotNull(response);
+        Assert.assertEquals(response.getStatus(), Response.Status.UNAUTHORIZED.getStatusCode());
+        Mockito.reset(this.deviceManagementProviderService);
+    }
+
+}

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java

@@ -91,6 +91,8 @@ public interface OperationManager {
 
     Activity getOperationByActivityId(String activity) throws OperationManagementException;
 
+    List<Activity> getOperationByActivityIds(List<String> idList) throws OperationManagementException;
+
     Activity getOperationByActivityIdAndDevice(String activity, DeviceIdentifier deviceId)
             throws OperationManagementException;
 

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java

@@ -737,6 +737,35 @@ public class OperationManagerImpl implements OperationManager {
         }
     }
 
+    @Override
+    public List<Activity> getOperationByActivityIds(List<String> activities)
+            throws OperationManagementException {
+        List<Integer> operationIds = new ArrayList<>();
+        for (String id : activities) {
+            int operationId = Integer.parseInt(
+                    id.replace(DeviceManagementConstants.OperationAttributes.ACTIVITY, ""));
+            if (operationId == 0) {
+                throw new IllegalArgumentException("Operation ID cannot be null or zero (0).");
+            } else {
+                operationIds.add(operationId);
+            }
+        }
+
+        try {
+            OperationManagementDAOFactory.openConnection();
+            return operationDAO.getActivityList(operationIds);
+        } catch (SQLException e) {
+            throw new OperationManagementException(
+                    "Error occurred while opening a connection to the data source.", e);
+        } catch (OperationManagementDAOException e) {
+            throw new OperationManagementException(
+                    "Error occurred while retrieving the operation with activity Id '" + activities
+                            .toString(), e);
+        } finally {
+            OperationManagementDAOFactory.closeConnection();
+        }
+    }
+
     public Activity getOperationByActivityIdAndDevice(String activity, DeviceIdentifier deviceId) throws OperationManagementException {
         // This parses the operation id from activity id (ex : ACTIVITY_23) and converts to the integer.
         int operationId = Integer.parseInt(

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/OperationDAO.java

@@ -61,6 +61,8 @@ public interface OperationDAO {
 
     Activity getActivity(int operationId) throws OperationManagementDAOException;
 
+    List<Activity> getActivityList(List<Integer> operationIds) throws OperationManagementDAOException;
+
     Activity getActivityByDevice(int operationId, int deviceId) throws OperationManagementDAOException;
 
     List<Activity> getActivitiesUpdatedAfter(long timestamp, int limit, int offset) throws OperationManagementDAOException;

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/GenericOperationDAOImpl.java

@@ -309,6 +309,133 @@ public class GenericOperationDAOImpl implements OperationDAO {
         return activity;
     }
 
+
+    @Override
+    public List<Activity> getActivityList(List<Integer> activityIds) throws OperationManagementDAOException {
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        Activity activity;
+        List<Activity> activities = new ArrayList<>();
+        Object[] data = activityIds.toArray();
+
+        try {
+            Connection conn = OperationManagementDAOFactory.getConnection();
+            String sql =
+                    "SELECT eom.ENROLMENT_ID, eom.OPERATION_ID, eom.ID AS EOM_MAPPING_ID, "
+                            + "dor.ID AS OP_RES_ID, de.DEVICE_ID, d.DEVICE_IDENTIFICATION, d.DEVICE_TYPE_ID, "
+                            + "dt.NAME AS DEVICE_TYPE_NAME, eom.STATUS, eom.CREATED_TIMESTAMP, "
+                            + "eom.UPDATED_TIMESTAMP, op.OPERATION_CODE, op.TYPE AS OPERATION_TYPE, "
+                            + "dor.OPERATION_RESPONSE, dor.RECEIVED_TIMESTAMP FROM "
+                            + "DM_ENROLMENT_OP_MAPPING eom INNER JOIN DM_OPERATION op "
+                            + "ON op.ID=eom.OPERATION_ID INNER JOIN DM_ENROLMENT de "
+                            + "ON de.ID=eom.ENROLMENT_ID INNER JOIN DM_DEVICE d ON d.ID=de.DEVICE_ID \n"
+                            + "INNER JOIN DM_DEVICE_TYPE dt ON dt.ID=d.DEVICE_TYPE_ID\n"
+                            + "LEFT JOIN DM_DEVICE_OPERATION_RESPONSE dor ON dor.ENROLMENT_ID=de.id \n"
+                            + "AND dor.OPERATION_ID = eom.OPERATION_ID WHERE eom.OPERATION_ID "
+                            + "IN (SELECT * FROM TABLE(x INT = ?)) AND de.TENANT_ID = ?";
+
+            stmt = conn.prepareStatement(sql);
+            stmt.setObject(1, data);
+
+            stmt.setInt(2, PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId());
+            rs = stmt.executeQuery();
+
+            int operationId = 0;
+            int enrolmentId = 0;
+            int responseId = 0;
+            ActivityStatus activityStatus = new ActivityStatus();
+            while (rs.next()) {
+                activity = new Activity();
+
+                if (operationId != rs.getInt("OPERATION_ID")) {
+                    activities.add(activity);
+                    List<ActivityStatus> statusList = new ArrayList<>();
+                    activityStatus = new ActivityStatus();
+
+                    operationId = rs.getInt("OPERATION_ID");
+                    enrolmentId = rs.getInt("ENROLMENT_ID");
+
+                    activity.setType(Activity.Type.valueOf(rs.getString("OPERATION_TYPE")));
+                    activity.setCreatedTimeStamp(
+                            new java.util.Date(rs.getLong(("CREATED_TIMESTAMP")) * 1000).toString());
+                    activity.setCode(rs.getString("OPERATION_CODE"));
+
+                    DeviceIdentifier deviceIdentifier = new DeviceIdentifier();
+                    deviceIdentifier.setId(rs.getString("DEVICE_IDENTIFICATION"));
+                    deviceIdentifier.setType(rs.getString("DEVICE_TYPE_NAME"));
+
+                    activityStatus.setDeviceIdentifier(deviceIdentifier);
+
+                    activityStatus.setStatus(ActivityStatus.Status.valueOf(rs.getString("STATUS")));
+
+                    List<OperationResponse> operationResponses = new ArrayList<>();
+                    if (rs.getInt("UPDATED_TIMESTAMP") != 0) {
+                        activityStatus.setUpdatedTimestamp(
+                                new java.util.Date(rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
+
+                    }
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
+                        operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
+                        responseId = rs.getInt("OP_RES_ID");
+                    }
+                    activityStatus.setResponses(operationResponses);
+                    statusList.add(activityStatus);
+                    activity.setActivityStatus(statusList);
+                    activity.setActivityId(OperationDAOUtil.getActivityId(rs.getInt("OPERATION_ID")));
+                }
+
+                if (operationId == rs.getInt("OPERATION_ID") && enrolmentId != rs.getInt("ENROLMENT_ID")) {
+                    activityStatus = new ActivityStatus();
+
+                    activity.setType(Activity.Type.valueOf(rs.getString("OPERATION_TYPE")));
+                    activity.setCreatedTimeStamp(
+                            new java.util.Date(rs.getLong(("CREATED_TIMESTAMP")) * 1000).toString());
+                    activity.setCode(rs.getString("OPERATION_CODE"));
+
+                    DeviceIdentifier deviceIdentifier = new DeviceIdentifier();
+                    deviceIdentifier.setId(rs.getString("DEVICE_IDENTIFICATION"));
+                    deviceIdentifier.setType(rs.getString("DEVICE_TYPE_NAME"));
+                    activityStatus.setDeviceIdentifier(deviceIdentifier);
+
+                    activityStatus.setStatus(ActivityStatus.Status.valueOf(rs.getString("STATUS")));
+
+                    List<OperationResponse> operationResponses = new ArrayList<>();
+                    if (rs.getInt("UPDATED_TIMESTAMP") != 0) {
+                        activityStatus.setUpdatedTimestamp(
+                                new java.util.Date(rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
+                    }
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
+                        operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
+                        responseId = rs.getInt("OP_RES_ID");
+                    }
+                    activityStatus.setResponses(operationResponses);
+                    activity.getActivityStatus().add(activityStatus);
+
+                    enrolmentId = rs.getInt("ENROLMENT_ID");
+                }
+
+                if (rs.getInt("OP_RES_ID") != 0 && responseId != rs.getInt("OP_RES_ID") && rs.getTimestamp(
+                        "RECEIVED_TIMESTAMP") != null) {
+                    activityStatus.getResponses().add(OperationDAOUtil.getOperationResponse(rs));
+                    responseId = rs.getInt("OP_RES_ID");
+                }
+            }
+
+        } catch (SQLException e) {
+            throw new OperationManagementDAOException(
+                    "Error occurred while getting the operation details from " + "the database.", e);
+        } catch (ClassNotFoundException e) {
+            throw new OperationManagementDAOException(
+                    "Error occurred while converting the operation response to string.", e);
+        } catch (IOException e) {
+            throw new OperationManagementDAOException(
+                    "IO exception occurred while converting the operations responses.", e);
+        } finally {
+            OperationManagementDAOUtil.cleanupResources(stmt, rs);
+        }
+        return activities;
+    }
+
     public Activity getActivityByDevice(int operationId, int deviceId) throws OperationManagementDAOException {
 
         PreparedStatement stmt = null;
@@ -482,7 +609,7 @@ public class GenericOperationDAOImpl implements OperationDAO {
                                 rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
 
                     }
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -512,7 +639,7 @@ public class GenericOperationDAOImpl implements OperationDAO {
                         activityStatus.setUpdatedTimestamp(new java.util.Date(
                                 rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
                     }
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -523,7 +650,7 @@ public class GenericOperationDAOImpl implements OperationDAO {
                 }
 
                 if (rs.getInt("OP_RES_ID") != 0 && responseId != rs.getInt("OP_RES_ID")) {
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         activityStatus.getResponses().add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -669,7 +796,7 @@ public class GenericOperationDAOImpl implements OperationDAO {
                                 rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
 
                     }
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -699,7 +826,7 @@ public class GenericOperationDAOImpl implements OperationDAO {
                         activityStatus.setUpdatedTimestamp(new java.util.Date(
                                 rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
                     }
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -710,7 +837,7 @@ public class GenericOperationDAOImpl implements OperationDAO {
                 }
 
                 if (rs.getInt("OP_RES_ID") != 0 && responseId != rs.getInt("OP_RES_ID")) {
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         activityStatus.getResponses().add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/operation/MySQLOperationDAOImpl.java

@@ -77,6 +77,139 @@ public class MySQLOperationDAOImpl extends GenericOperationDAOImpl {
         return isUpdated;
     }
 
+    @Override
+    public List<Activity> getActivityList(List<Integer> activityIds) throws OperationManagementDAOException {
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        Activity activity;
+        List<Activity> activities = new ArrayList<>();
+
+        try {
+            Connection conn = OperationManagementDAOFactory.getConnection();
+
+            String sql1 = "SELECT eom.ENROLMENT_ID, eom.OPERATION_ID, eom.ID AS EOM_MAPPING_ID, "
+                    + "dor.ID AS OP_RES_ID, de.DEVICE_ID, d.DEVICE_IDENTIFICATION, d.DEVICE_TYPE_ID, "
+                    + "dt.NAME AS DEVICE_TYPE_NAME, eom.STATUS, eom.CREATED_TIMESTAMP, "
+                    + "eom.UPDATED_TIMESTAMP, op.OPERATION_CODE, op.TYPE AS OPERATION_TYPE, "
+                    + "dor.OPERATION_RESPONSE, dor.RECEIVED_TIMESTAMP FROM "
+                    + "DM_ENROLMENT_OP_MAPPING eom INNER JOIN DM_OPERATION op "
+                    + "ON op.ID=eom.OPERATION_ID INNER JOIN DM_ENROLMENT de "
+                    + "ON de.ID=eom.ENROLMENT_ID INNER JOIN DM_DEVICE d ON d.ID=de.DEVICE_ID \n"
+                    + "INNER JOIN DM_DEVICE_TYPE dt ON dt.ID=d.DEVICE_TYPE_ID\n"
+                    + "LEFT JOIN DM_DEVICE_OPERATION_RESPONSE dor ON dor.ENROLMENT_ID=de.id \n"
+                    + "AND dor.OPERATION_ID = eom.OPERATION_ID WHERE eom.OPERATION_ID " + "IN (";
+
+            StringBuilder builder = new StringBuilder();
+            for (int i = 0; i < activityIds.size(); i++) {
+                builder.append("?,");
+            }
+            sql1 += builder.deleteCharAt(builder.length() - 1).toString() + ") AND de.TENANT_ID = ?";
+            stmt = conn.prepareStatement(sql1);
+            int i;
+            for (i = 0; i < activityIds.size(); i++) {
+                stmt.setInt(i + 1, activityIds.get(i));
+            }
+            stmt.setInt(i + 1, PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId());
+
+            rs = stmt.executeQuery();
+
+            int operationId = 0;
+            int enrolmentId = 0;
+            int responseId = 0;
+            ActivityStatus activityStatus = new ActivityStatus();
+            while (rs.next()) {
+                activity = new Activity();
+
+                if (operationId != rs.getInt("OPERATION_ID")) {
+                    activities.add(activity);
+                    List<ActivityStatus> statusList = new ArrayList<>();
+                    activityStatus = new ActivityStatus();
+
+                    operationId = rs.getInt("OPERATION_ID");
+                    enrolmentId = rs.getInt("ENROLMENT_ID");
+
+                    activity.setType(Activity.Type.valueOf(rs.getString("OPERATION_TYPE")));
+                    activity.setCreatedTimeStamp(
+                            new java.util.Date(rs.getLong(("CREATED_TIMESTAMP")) * 1000).toString());
+                    activity.setCode(rs.getString("OPERATION_CODE"));
+
+                    DeviceIdentifier deviceIdentifier = new DeviceIdentifier();
+                    deviceIdentifier.setId(rs.getString("DEVICE_IDENTIFICATION"));
+                    deviceIdentifier.setType(rs.getString("DEVICE_TYPE_NAME"));
+
+                    activityStatus.setDeviceIdentifier(deviceIdentifier);
+
+                    activityStatus.setStatus(ActivityStatus.Status.valueOf(rs.getString("STATUS")));
+
+                    List<OperationResponse> operationResponses = new ArrayList<>();
+                    if (rs.getInt("UPDATED_TIMESTAMP") != 0) {
+                        activityStatus.setUpdatedTimestamp(
+                                new java.util.Date(rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
+
+                    }
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
+                        operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
+                        responseId = rs.getInt("OP_RES_ID");
+                    }
+                    activityStatus.setResponses(operationResponses);
+                    statusList.add(activityStatus);
+                    activity.setActivityStatus(statusList);
+                    activity.setActivityId(OperationDAOUtil.getActivityId(rs.getInt("OPERATION_ID")));
+                }
+
+                if (operationId == rs.getInt("OPERATION_ID") && enrolmentId != rs.getInt("ENROLMENT_ID")) {
+                    activityStatus = new ActivityStatus();
+
+                    activity.setType(Activity.Type.valueOf(rs.getString("OPERATION_TYPE")));
+                    activity.setCreatedTimeStamp(
+                            new java.util.Date(rs.getLong(("CREATED_TIMESTAMP")) * 1000).toString());
+                    activity.setCode(rs.getString("OPERATION_CODE"));
+
+                    DeviceIdentifier deviceIdentifier = new DeviceIdentifier();
+                    deviceIdentifier.setId(rs.getString("DEVICE_IDENTIFICATION"));
+                    deviceIdentifier.setType(rs.getString("DEVICE_TYPE_NAME"));
+                    activityStatus.setDeviceIdentifier(deviceIdentifier);
+
+                    activityStatus.setStatus(ActivityStatus.Status.valueOf(rs.getString("STATUS")));
+
+                    List<OperationResponse> operationResponses = new ArrayList<>();
+                    if (rs.getInt("UPDATED_TIMESTAMP") != 0) {
+                        activityStatus.setUpdatedTimestamp(
+                                new java.util.Date(rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
+                    }
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
+                        operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
+                        responseId = rs.getInt("OP_RES_ID");
+                    }
+                    activityStatus.setResponses(operationResponses);
+                    activity.getActivityStatus().add(activityStatus);
+
+                    enrolmentId = rs.getInt("ENROLMENT_ID");
+                }
+
+                if (rs.getInt("OP_RES_ID") != 0 && responseId != rs.getInt("OP_RES_ID") && rs.getTimestamp(
+                        "RECEIVED_TIMESTAMP") != null) {
+                    activityStatus.getResponses().add(OperationDAOUtil.getOperationResponse(rs));
+                    responseId = rs.getInt("OP_RES_ID");
+                }
+            }
+
+        } catch (SQLException e) {
+            throw new OperationManagementDAOException(
+                    "Error occurred while getting the operation details from " + "the database.", e);
+        } catch (ClassNotFoundException e) {
+            throw new OperationManagementDAOException(
+                    "Error occurred while converting the operation response to string.", e);
+        } catch (IOException e) {
+            throw new OperationManagementDAOException(
+                    "IO exception occurred while converting the operations responses.", e);
+        } finally {
+            OperationManagementDAOUtil.cleanupResources(stmt, rs);
+        }
+        return activities;
+    }
+
+
 
     @Override
     public List<Activity> getActivitiesUpdatedAfter(long timestamp, int limit,
@@ -176,7 +309,7 @@ public class MySQLOperationDAOImpl extends GenericOperationDAOImpl {
                                 rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
 
                     }
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -206,7 +339,7 @@ public class MySQLOperationDAOImpl extends GenericOperationDAOImpl {
                         activityStatus.setUpdatedTimestamp(new java.util.Date(
                                 rs.getLong(("UPDATED_TIMESTAMP")) * 1000).toString());
                     }
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         operationResponses.add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -217,7 +350,7 @@ public class MySQLOperationDAOImpl extends GenericOperationDAOImpl {
                 }
 
                 if (rs.getInt("OP_RES_ID") != 0 && responseId != rs.getInt("OP_RES_ID")) {
-                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != (null)) {
+                    if (rs.getTimestamp("RECEIVED_TIMESTAMP") != null) {
                         activityStatus.getResponses().add(OperationDAOUtil.getOperationResponse(rs));
                         responseId = rs.getInt("OP_RES_ID");
                     }
@@ -235,4 +368,14 @@ public class MySQLOperationDAOImpl extends GenericOperationDAOImpl {
         }
         return activities;
     }
+
+    private Integer[] getIntArrayOfActivityIds(List<Integer> activityIds) {
+        Integer[] arr = new Integer[activityIds.size()];
+        int x = 0;
+        for (Integer activityId : activityIds) {
+            arr[x] = activityId;
+            x++;
+        }
+        return arr;
+    }
 }

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

@@ -564,6 +564,8 @@ public interface DeviceManagementProviderService {
 
     Activity getOperationByActivityId(String activity) throws OperationManagementException;
 
+    List<Activity> getOperationByActivityIds(List<String> idList) throws OperationManagementException;
+
     Activity getOperationByActivityIdAndDevice(String activity, DeviceIdentifier deviceId) throws OperationManagementException;
 
     List<Activity> getActivitiesUpdatedAfter(long timestamp, int limit, int offset) throws OperationManagementException;

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

@@ -1473,6 +1473,11 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         return DeviceManagementDataHolder.getInstance().getOperationManager().getOperationByActivityId(activity);
     }
 
+    @Override
+    public List<Activity> getOperationByActivityIds(List<String> idList) throws OperationManagementException{
+        return DeviceManagementDataHolder.getInstance().getOperationManager().getOperationByActivityIds(idList);
+    }
+
     public Activity getOperationByActivityIdAndDevice(String activity, DeviceIdentifier deviceId) throws OperationManagementException {
         return DeviceManagementDataHolder.getInstance().getOperationManager().getOperationByActivityIdAndDevice(activity, deviceId);
     }