Fixed EMM-1447, EMM-1424

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

@@ -81,7 +81,7 @@ public class ActivityProviderServiceImpl implements ActivityInfoProviderService
         long timestamp = 0;
         boolean isIfModifiedSinceSet = false;
         boolean isSinceSet = false;
-
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         if (ifModifiedSince != null && !ifModifiedSince.isEmpty()) {
             Date ifSinceDate;
             SimpleDateFormat format = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z");

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

@@ -74,7 +74,7 @@ public class DeviceManagementServiceImpl implements DeviceManagementService {
             @QueryParam("limit") int limit) {
         try {
 //            RequestValidationUtil.validateSelectionCriteria(type, user, roleName, ownership, status);
-
+            RequestValidationUtil.validatePaginationParameters(offset, limit);
             DeviceManagementProviderService dms = DeviceMgtAPIUtils.getDeviceManagementService();
             PaginationRequest request = new PaginationRequest(offset, limit);
             PaginationResult result;
@@ -154,6 +154,7 @@ public class DeviceManagementServiceImpl implements DeviceManagementService {
     public Response getDeviceByUser(@QueryParam("offset") int offset,
                                     @QueryParam("limit") int limit) {
 
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         PaginationRequest request = new PaginationRequest(offset, limit);
         PaginationResult result;
         DeviceList devices = new DeviceList();
@@ -292,6 +293,7 @@ public class DeviceManagementServiceImpl implements DeviceManagementService {
             @QueryParam("offset") int offset,
             @QueryParam("limit") int limit) {
         OperationList operationsList = new OperationList();
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         PaginationRequest request = new PaginationRequest(offset, limit);
         PaginationResult result;
         DeviceManagementProviderService dms;

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

@@ -50,6 +50,7 @@ public class NotificationManagementServiceImpl implements NotificationManagement
             @HeaderParam("If-Modified-Since") String ifModifiedSince,
             @QueryParam("offset") int offset, @QueryParam("limit") int limit) {
 
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         PaginationRequest request = new PaginationRequest(offset, limit);
         PaginationResult result;
 

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

@@ -140,6 +140,7 @@ public class PolicyManagementServiceImpl implements PolicyManagementService {
             @HeaderParam("If-Modified-Since") String ifModifiedSince,
             @QueryParam("offset") int offset,
             @QueryParam("limit") int limit) {
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         PolicyManagerService policyManagementService = DeviceMgtAPIUtils.getPolicyManagementService();
         List<Policy> policies;
         List<Policy> filteredPolicies;

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

@@ -61,6 +61,7 @@ public class RoleManagementServiceImpl implements RoleManagementService {
             @QueryParam("user-store") String userStore,
             @HeaderParam("If-Modified-Since") String ifModifiedSince,
             @QueryParam("offset") int offset, @QueryParam("limit") int limit) {
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         List<String> filteredRoles;
         RoleList targetRoles = new RoleList();
 

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

@@ -26,6 +26,7 @@ import org.wso2.carbon.device.mgt.core.service.DeviceManagementProviderService;
 import org.wso2.carbon.device.mgt.core.service.EmailMetaInfo;
 import org.wso2.carbon.device.mgt.jaxrs.beans.*;
 import org.wso2.carbon.device.mgt.jaxrs.service.api.UserManagementService;
+import org.wso2.carbon.device.mgt.jaxrs.service.impl.util.RequestValidationUtil;
 import org.wso2.carbon.device.mgt.jaxrs.util.Constants;
 import org.wso2.carbon.device.mgt.jaxrs.util.CredentialManagementResponseBuilder;
 import org.wso2.carbon.device.mgt.jaxrs.util.DeviceMgtAPIUtils;
@@ -264,6 +265,7 @@ public class UserManagementServiceImpl implements UserManagementService {
             log.debug("Getting the list of users with all user-related information");
         }
         List<BasicUserInfo> userList, offsetList;
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         String appliedFilter = ((filter == null) || filter.isEmpty() ? "*" : filter);
         int appliedLimit = (limit <= 0) ? -1 : (limit + offset);
 

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

@@ -28,6 +28,7 @@ import org.wso2.carbon.device.mgt.common.DeviceManagementException;
 import org.wso2.carbon.device.mgt.jaxrs.beans.DeviceList;
 import org.wso2.carbon.device.mgt.jaxrs.beans.ErrorResponse;
 import org.wso2.carbon.device.mgt.jaxrs.service.api.admin.DeviceManagementAdminService;
+import org.wso2.carbon.device.mgt.jaxrs.service.impl.util.RequestValidationUtil;
 import org.wso2.carbon.device.mgt.jaxrs.util.DeviceMgtAPIUtils;
 
 import javax.ws.rs.*;
@@ -50,6 +51,7 @@ public class DeviceManagementAdminServiceImpl implements DeviceManagementAdminSe
                                      @HeaderParam("If-Modified-Since") String ifModifiedSince,
                                      @QueryParam("offset") int offset,
                                      @QueryParam("limit") int limit) {
+        RequestValidationUtil.validatePaginationParameters(offset, limit);
         try {
             int currentTenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
             if (MultitenantConstants.SUPER_TENANT_ID != currentTenantId) {

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

@@ -19,6 +19,7 @@
 package org.wso2.carbon.device.mgt.jaxrs.service.impl.util;
 
 import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.PaginationRequest;
 import org.wso2.carbon.device.mgt.common.configuration.mgt.PlatformConfiguration;
 import org.wso2.carbon.device.mgt.common.notification.mgt.Notification;
 import org.wso2.carbon.device.mgt.jaxrs.beans.*;
@@ -312,4 +313,17 @@ public class RequestValidationUtil {
         }
     }
 
+    public static void validatePaginationParameters(int offset, int limit) {
+        if (offset < 0) {
+            throw new InputValidationException(
+                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage("Request parameter offset is s " +
+                                                                                      "negative value.").build());
+        }
+        if (limit < 0) {
+            throw new InputValidationException(
+                    new ErrorResponse.ErrorResponseBuilder().setCode(400l).setMessage("Request parameter limit is a " +
+                                                                                      "negative value.").build());
+        }
+    }
+
 }

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/config/DeviceManagementConfig.java

@@ -18,6 +18,7 @@
 package org.wso2.carbon.device.mgt.core.config;
 
 import org.wso2.carbon.device.mgt.core.config.identity.IdentityConfigurations;
+import org.wso2.carbon.device.mgt.core.config.pagination.PaginationConfiguration;
 import org.wso2.carbon.device.mgt.core.config.policy.PolicyConfiguration;
 import org.wso2.carbon.device.mgt.core.config.task.TaskConfiguration;
 
@@ -37,6 +38,7 @@ public final class DeviceManagementConfig {
     private TaskConfiguration taskConfiguration;
     private IdentityConfigurations identityConfigurations;
     private PolicyConfiguration policyConfiguration;
+    private PaginationConfiguration paginationConfiguration;
     private List<String> pushNotificationProviders;
 
 
@@ -87,5 +89,14 @@ public final class DeviceManagementConfig {
         this.pushNotificationProviders = pushNotificationProviders;
     }
 
+    @XmlElement(name = "PaginationConfiguration", required = true)
+    public PaginationConfiguration getPaginationConfiguration() {
+        return paginationConfiguration;
+    }
+
+    public void setPaginationConfiguration(PaginationConfiguration paginationConfiguration) {
+        this.paginationConfiguration = paginationConfiguration;
+    }
+
 }
 

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/config/pagination/PaginationConfiguration.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2016, 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.core.config.pagination;
+
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+
+/**
+ * This class represents the information related to Pagination configuration.
+ */
+@XmlRootElement(name = "PaginationConfiguration")
+public class PaginationConfiguration {
+
+    private int deviceListPageSize;
+    private int operationListPageSize;
+    private int notificationListPageSize;
+    private int activityListPageSize;
+
+    public int getDeviceListPageSize() {
+        return deviceListPageSize;
+    }
+
+    @XmlElement(name = "DeviceListPageSize", required = true)
+    public void setDeviceListPageSize(int deviceListPageSize) {
+        this.deviceListPageSize = deviceListPageSize;
+    }
+
+    public int getOperationListPageSize() {
+        return operationListPageSize;
+    }
+
+    @XmlElement(name = "OperationListPageSize", required = true)
+    public void setOperationListPageSize(int operationListPageSize) {
+        this.operationListPageSize = operationListPageSize;
+    }
+
+    public int getNotificationListPageSize() {
+        return notificationListPageSize;
+    }
+
+    @XmlElement(name = "NotificationListPageSize", required = true)
+    public void setNotificationListPageSize(int notificationListPageSize) {
+        this.notificationListPageSize = notificationListPageSize;
+    }
+
+    public int getActivityListPageSize() {
+        return activityListPageSize;
+    }
+
+    @XmlElement(name = "ActivityListPageSize", required = true)
+    public void setActivityListPageSize(int activityListPageSize) {
+        this.activityListPageSize = activityListPageSize;
+    }
+
+}

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/notification/mgt/NotificationManagementServiceImpl.java

@@ -35,6 +35,7 @@ import org.wso2.carbon.device.mgt.core.dao.DeviceManagementDAOFactory;
 import org.wso2.carbon.device.mgt.core.notification.mgt.dao.NotificationDAO;
 import org.wso2.carbon.device.mgt.core.notification.mgt.dao.NotificationManagementDAOFactory;
 import org.wso2.carbon.device.mgt.core.notification.mgt.dao.util.NotificationDAOUtil;
+import org.wso2.carbon.device.mgt.core.util.DeviceManagerUtil;
 
 import java.sql.SQLException;
 import java.util.ArrayList;
@@ -177,6 +178,7 @@ public class NotificationManagementServiceImpl implements NotificationManagement
     public PaginationResult getAllNotifications(PaginationRequest request) throws NotificationManagementException {
         PaginationResult paginationResult = new PaginationResult();
         List<Notification> notifications = new ArrayList<>();
+        request = DeviceManagerUtil.validateNotificationListPageSize(request);
         int count =0;
         try {
             NotificationManagementDAOFactory.openConnection();
@@ -199,6 +201,7 @@ public class NotificationManagementServiceImpl implements NotificationManagement
                                                      PaginationRequest request) throws NotificationManagementException{
         PaginationResult paginationResult = new PaginationResult();
         List<Notification> notifications = new ArrayList<>();
+        request = DeviceManagerUtil.validateNotificationListPageSize(request);
         int count =0;
         try {
             NotificationManagementDAOFactory.openConnection();

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

@@ -508,6 +508,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         int count = 0;
         int tenantId = this.getTenantId();
         String deviceType = request.getDeviceType();
+        request = DeviceManagerUtil.validateDeviceListPageSize(request);
         try {
             DeviceManagementDAOFactory.openConnection();
             allDevices = deviceDAO.getDevices(request, tenantId);
@@ -569,6 +570,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         List<Device> allDevices = new ArrayList<>();
         int count = 0;
         int tenantId = this.getTenantId();
+        request = DeviceManagerUtil.validateDeviceListPageSize(request);
         try {
             DeviceManagementDAOFactory.openConnection();
             allDevices = deviceDAO.getDevices(request, tenantId);
@@ -1031,6 +1033,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
     @Override
     public PaginationResult getOperations(DeviceIdentifier deviceId, PaginationRequest request)
             throws OperationManagementException {
+        request = DeviceManagerUtil.validateOperationListPageSize(request);
         return pluginRepository.getOperationManager(deviceId.getType(), this.getTenantId())
                 .getOperations(deviceId, request);
     }
@@ -1091,6 +1094,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
 
     @Override
     public List<Activity> getActivitiesUpdatedAfter(long timestamp, int limit, int offset) throws OperationManagementException {
+        limit = DeviceManagerUtil.validateActivityListPageSize(limit);
         return DeviceManagementDataHolder.getInstance().getOperationManager().getActivitiesUpdatedAfter(timestamp, limit, offset);
     }
 
@@ -1176,6 +1180,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         String username = request.getOwner();
         List<Device> devices = new ArrayList<>();
         List<Device> userDevices = new ArrayList<>();
+        request = DeviceManagerUtil.validateDeviceListPageSize(request);
         try {
             DeviceManagementDAOFactory.openConnection();
             userDevices = deviceDAO.getDevicesOfUser(request, tenantId);
@@ -1253,6 +1258,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         int deviceCount = 0;
         int tenantId = this.getTenantId();
         String ownerShip = request.getOwnership();
+        request = DeviceManagerUtil.validateDeviceListPageSize(request);
         try {
             DeviceManagementDAOFactory.openConnection();
             allDevices = deviceDAO.getDevicesByOwnership(request, tenantId);
@@ -1412,6 +1418,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
     public List<Device> getDevicesByNameAndType(String deviceName, String type, int offset, int limit) throws DeviceManagementException {
         List<Device> devices = new ArrayList<>();
         List<Device> allDevices;
+        limit = DeviceManagerUtil.validateDeviceListPageSize(limit);
         try {
             DeviceManagementDAOFactory.openConnection();
             allDevices = deviceDAO.getDevicesByNameAndType(deviceName, type, this.getTenantId(), offset, limit);
@@ -1474,6 +1481,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         List<Device> devices = new ArrayList<>();
         List<Device> allDevices = new ArrayList<>();
         String deviceName = request.getDeviceName();
+        request = DeviceManagerUtil.validateDeviceListPageSize(request);
         try {
             DeviceManagementDAOFactory.openConnection();
             allDevices = deviceDAO.getDevicesByName(request, tenantId);
@@ -1636,6 +1644,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         List<Device> allDevices = new ArrayList<>();
         int tenantId = this.getTenantId();
         String status = request.getStatus();
+        request = DeviceManagerUtil.validateDeviceListPageSize(request);
         try {
             DeviceManagementDAOFactory.openConnection();
             allDevices = deviceDAO.getDevicesByStatus(request, tenantId);

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/util/DeviceManagerUtil.java

@@ -21,10 +21,11 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.w3c.dom.Document;
 import org.wso2.carbon.base.MultitenantConstants;
-import org.wso2.carbon.device.mgt.common.Device;
+import org.wso2.carbon.device.mgt.common.*;
-import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.notification.mgt.NotificationManagementException;
-import org.wso2.carbon.device.mgt.common.DeviceManagementException;
+import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManagementException;
-import org.wso2.carbon.device.mgt.common.TransactionManagementException;
+import org.wso2.carbon.device.mgt.core.config.DeviceConfigurationManager;
+import org.wso2.carbon.device.mgt.core.config.DeviceManagementConfig;
 import org.wso2.carbon.device.mgt.core.config.datasource.DataSourceConfig;
 import org.wso2.carbon.device.mgt.core.config.datasource.JNDILookupDefinition;
 import org.wso2.carbon.device.mgt.core.dao.DeviceManagementDAOException;
@@ -241,4 +242,79 @@ public final class DeviceManagerUtil {
         }
     }
 
+    public static int validateActivityListPageSize(int limit) throws OperationManagementException {
+        if (limit == 0) {
+            DeviceManagementConfig deviceManagementConfig = DeviceConfigurationManager.getInstance().
+                    getDeviceManagementConfig();
+            if (deviceManagementConfig != null) {
+                return deviceManagementConfig.getPaginationConfiguration().getActivityListPageSize();
+            } else {
+                throw new OperationManagementException("Device-Mgt configuration has not initialized. Please check the " +
+                                                    "cdm-config.xml file.");
+            }
+        }
+        return limit;
+    }
+
+    public static PaginationRequest validateOperationListPageSize(PaginationRequest paginationRequest) throws
+                                                                                          OperationManagementException {
+        if (paginationRequest.getRowCount() == 0) {
+            DeviceManagementConfig deviceManagementConfig = DeviceConfigurationManager.getInstance().
+                    getDeviceManagementConfig();
+            if (deviceManagementConfig != null) {
+                paginationRequest.setRowCount(deviceManagementConfig.getPaginationConfiguration().
+                        getOperationListPageSize());
+            } else {
+                throw new OperationManagementException("Device-Mgt configuration has not initialized. Please check the " +
+                                                    "cdm-config.xml file.");
+            }
+        }
+        return paginationRequest;
+    }
+
+    public static PaginationRequest validateNotificationListPageSize(PaginationRequest paginationRequest) throws
+                                                                                       NotificationManagementException {
+        if (paginationRequest.getRowCount() == 0) {
+            DeviceManagementConfig deviceManagementConfig = DeviceConfigurationManager.getInstance().
+                    getDeviceManagementConfig();
+            if (deviceManagementConfig != null) {
+                paginationRequest.setRowCount(deviceManagementConfig.getPaginationConfiguration().
+                        getNotificationListPageSize());
+            } else {
+                throw new NotificationManagementException("Device-Mgt configuration has not initialized. Please check the " +
+                          "cdm-config.xml file.");
+            }
+        }
+        return paginationRequest;
+    }
+
+    public static PaginationRequest validateDeviceListPageSize(PaginationRequest paginationRequest) throws
+                                                                                             DeviceManagementException {
+        if (paginationRequest.getRowCount() == 0) {
+            DeviceManagementConfig deviceManagementConfig = DeviceConfigurationManager.getInstance().
+                    getDeviceManagementConfig();
+            if (deviceManagementConfig != null) {
+                paginationRequest.setRowCount(deviceManagementConfig.getPaginationConfiguration().
+                        getDeviceListPageSize());
+            } else {
+                throw new DeviceManagementException("Device-Mgt configuration has not initialized. Please check the " +
+                                                    "cdm-config.xml file.");
+            }
+        }
+        return paginationRequest;
+    }
+
+    public static int validateDeviceListPageSize(int limit) throws DeviceManagementException {
+        if (limit == 0) {
+            DeviceManagementConfig deviceManagementConfig = DeviceConfigurationManager.getInstance().
+                    getDeviceManagementConfig();
+            if (deviceManagementConfig != null) {
+                return deviceManagementConfig.getPaginationConfiguration().getDeviceListPageSize();
+            } else {
+                throw new DeviceManagementException("Device-Mgt configuration has not initialized. Please check the " +
+                                                    "cdm-config.xml file.");
+            }
+        }
+        return limit;
+    }
 }

features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/conf/cdm-config.xml

@@ -27,8 +27,8 @@
     </ManagementRepository>
     <PushNotificationProviders>
         <Provider>org.wso2.carbon.device.mgt.extensions.push.notification.provider.gcm.GCMBasedPushNotificationProvider</Provider>
-        <Provider>org.wso2.carbon.device.mgt.extensions.push.notification.provider.mqtt.MQTTBasedPushNotificationProvider</Provider>
+        <!--<Provider>org.wso2.carbon.device.mgt.extensions.push.notification.provider.mqtt.MQTTBasedPushNotificationProvider</Provider>-->
-        <Provider>org.wso2.carbon.device.mgt.extensions.push.notification.provider.xmpp.XMPPBasedPushNotificationProvider</Provider>
+        <!--<Provider>org.wso2.carbon.device.mgt.extensions.push.notification.provider.xmpp.XMPPBasedPushNotificationProvider</Provider>-->
     </PushNotificationProviders>
     <IdentityConfiguration>
         <ServerUrl>https://localhost:9443</ServerUrl>
@@ -37,14 +37,14 @@
     </IdentityConfiguration>
     <PolicyConfiguration>
         <MonitoringClass>org.wso2.carbon.policy.mgt</MonitoringClass>
-        <MonitoringEnable>false</MonitoringEnable>
+        <MonitoringEnable>true</MonitoringEnable>
         <MonitoringFrequency>60000</MonitoringFrequency>
         <MaxRetries>5</MaxRetries>
         <MinRetriesToMarkUnreachable>8</MinRetriesToMarkUnreachable>
         <MinRetriesToMarkInactive>20</MinRetriesToMarkInactive>
     </PolicyConfiguration>
     <TaskConfiguration>
-        <Enable>false</Enable>
+        <Enable>true</Enable>
         <Frequency>600000</Frequency>
         <TaskClass>org.wso2.carbon.device.mgt.core.task.impl.DeviceDetailsRetrieverTask</TaskClass>
         <Operations>
@@ -62,5 +62,11 @@
             </Operation>
         </Operations>
     </TaskConfiguration>
+    <PaginationConfiguration>
+        <DeviceListPageSize>20</DeviceListPageSize>
+        <NotificationListPageSize>20</NotificationListPageSize>
+        <ActivityListPageSize>20</ActivityListPageSize>
+        <OperationListPageSize>20</OperationListPageSize>
+    </PaginationConfiguration>
 </DeviceMgtConfiguration>