thingsboard-aplcache

diff --git a/application/src/main/java/org/thingsboard/server/install/ThingsboardInstallService.java b/application/src/main/java/org/thingsboard/server/install/ThingsboardInstallService.java
index f87f046..3994d99 100644
--- a/application/src/main/java/org/thingsboard/server/install/ThingsboardInstallService.java
+++ b/application/src/main/java/org/thingsboard/server/install/ThingsboardInstallService.java
@@ -23,7 +23,7 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Profile;
 import org.springframework.stereotype.Service;
 import org.thingsboard.server.service.component.ComponentDiscoveryService;
-import org.thingsboard.server.service.install.DataUpdateService;
+import org.thingsboard.server.service.install.update.DataUpdateService;
 import org.thingsboard.server.service.install.DatabaseUpgradeService;
 import org.thingsboard.server.service.install.EntityDatabaseSchemaService;
 import org.thingsboard.server.service.install.SystemDataLoaderService;

diff --git a/application/src/main/java/org/thingsboard/server/service/install/update/PaginatedUpdater.java b/application/src/main/java/org/thingsboard/server/service/install/update/PaginatedUpdater.java
new file mode 100644
index 0000000..c898918
--- /dev/null
+++ b/application/src/main/java/org/thingsboard/server/service/install/update/PaginatedUpdater.java
@@ -0,0 +1,47 @@
+/**
+ * Copyright © 2016-2018 The Thingsboard Authors
+ *
+ * Licensed 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.thingsboard.server.service.install.update;
+
+import org.thingsboard.server.common.data.SearchTextBased;
+import org.thingsboard.server.common.data.id.UUIDBased;
+import org.thingsboard.server.common.data.page.TextPageData;
+import org.thingsboard.server.common.data.page.TextPageLink;
+
+public abstract class PaginatedUpdater<I, D extends SearchTextBased<? extends UUIDBased>> {
+
+    private static final int DEFAULT_LIMIT = 100;
+
+    public void updateEntities(I id) {
+        TextPageLink pageLink = new TextPageLink(DEFAULT_LIMIT);
+        boolean hasNext = true;
+        while (hasNext) {
+            TextPageData<D> entities = findEntities(id, pageLink);
+            for (D entity : entities.getData()) {
+                updateEntity(entity);
+            }
+            hasNext = entities.hasNext();
+            if (hasNext) {
+                pageLink = entities.getNextPageLink();
+            }
+        }
+    }
+
+    protected abstract TextPageData<D> findEntities(I id, TextPageLink pageLink);
+
+    protected abstract void updateEntity(D entity);
+
+}