Remove groups manager

11 files changed, 46 insertions, 214 deletions

diff --git a/src/main/java/org/traccar/Context.java b/src/main/java/org/traccar/Context.java
index cbbc73d76..9e8e3c521 100644
--- a/src/main/java/org/traccar/Context.java
+++ b/src/main/java/org/traccar/Context.java
@@ -19,14 +19,13 @@ import org.traccar.config.Config;
 import org.traccar.database.BaseObjectManager;
 import org.traccar.database.DataManager;
 import org.traccar.database.DeviceManager;
-import org.traccar.database.GroupsManager;
 import org.traccar.database.IdentityManager;
 import org.traccar.database.PermissionsManager;
 import org.traccar.helper.Log;
 import org.traccar.model.BaseModel;
 import org.traccar.model.Device;
-import org.traccar.model.Group;
 import org.traccar.session.ConnectionManager;
+import org.traccar.session.cache.CacheManager;
 import org.traccar.storage.Storage;
 
 public final class Context {
@@ -46,12 +45,6 @@ public final class Context {
         return identityManager;
     }
 
-    private static GroupsManager groupsManager;
-
-    public static GroupsManager getGroupsManager() {
-        return groupsManager;
-    }
-
     private static DeviceManager deviceManager;
 
     public static DeviceManager getDeviceManager() {
@@ -75,9 +68,9 @@ public final class Context {
             throw e;
         }
 
-        groupsManager = new GroupsManager(Main.getInjector().getInstance(DataManager.class));
         deviceManager = new DeviceManager(
                 config,
+                Main.getInjector().getInstance(CacheManager.class),
                 Main.getInjector().getInstance(DataManager.class),
                 Main.getInjector().getInstance(ConnectionManager.class));
 
@@ -92,8 +85,6 @@ public final class Context {
     public static <T extends BaseModel> BaseObjectManager<T> getManager(Class<T> clazz) {
         if (clazz.equals(Device.class)) {
             return (BaseObjectManager<T>) deviceManager;
-        } else if (clazz.equals(Group.class)) {
-            return (BaseObjectManager<T>) groupsManager;
         }
         return null;
     }
diff --git a/src/main/java/org/traccar/WebDataHandler.java b/src/main/java/org/traccar/WebDataHandler.java
index 2c0aa0f8e..db99ecaf8 100644
--- a/src/main/java/org/traccar/WebDataHandler.java
+++ b/src/main/java/org/traccar/WebDataHandler.java
@@ -31,6 +31,7 @@ import org.traccar.helper.Checksum;
 import org.traccar.model.Device;
 import org.traccar.model.Position;
 import org.traccar.model.Group;
+import org.traccar.session.cache.CacheManager;
 
 import javax.inject.Inject;
 import javax.ws.rs.core.HttpHeaders;
@@ -60,6 +61,7 @@ public class WebDataHandler extends BaseDataHandler {
     private static final String KEY_POSITION = "position";
     private static final String KEY_DEVICE = "device";
 
+    private final CacheManager cacheManager;
     private final IdentityManager identityManager;
     private final ObjectMapper objectMapper;
     private final Client client;
@@ -78,8 +80,10 @@ public class WebDataHandler extends BaseDataHandler {
 
     @Inject
     public WebDataHandler(
-            Config config, IdentityManager identityManager, ObjectMapper objectMapper, Client client) {
+            Config config, CacheManager cacheManager, IdentityManager identityManager,
+            ObjectMapper objectMapper, Client client) {
 
+        this.cacheManager = cacheManager;
         this.identityManager = identityManager;
         this.objectMapper = objectMapper;
         this.client = client;
@@ -171,7 +175,7 @@ public class WebDataHandler extends BaseDataHandler {
         if (request.contains("{group}")) {
             String deviceGroupName = "";
             if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
+                Group group = cacheManager.getObject(Group.class, device.getGroupId());
                 if (group != null) {
                     deviceGroupName = group.getName();
                 }
diff --git a/src/main/java/org/traccar/api/BaseObjectResource.java b/src/main/java/org/traccar/api/BaseObjectResource.java
index f8545a5d7..78aa12dbe 100644
--- a/src/main/java/org/traccar/api/BaseObjectResource.java
+++ b/src/main/java/org/traccar/api/BaseObjectResource.java
@@ -18,7 +18,6 @@ package org.traccar.api;
 
 import org.traccar.Context;
 import org.traccar.database.BaseObjectManager;
-import org.traccar.database.ExtendedObjectManager;
 import org.traccar.helper.LogAction;
 import org.traccar.model.BaseModel;
 import org.traccar.model.Device;
@@ -92,10 +91,16 @@ public abstract class BaseObjectResource<T extends BaseModel> extends BaseResour
     public Response update(T entity) throws StorageException {
         permissionsService.checkEdit(getUserId(), entity, false);
         permissionsService.checkPermission(baseClass, getUserId(), entity.getId());
+
         if (entity instanceof User) {
             User before = storage.getObject(User.class, new Request(
                     new Columns.All(), new Condition.Equals("id", "id", entity.getId())));
             permissionsService.checkUserUpdate(getUserId(), before, (User) entity);
+        } else if (entity instanceof Group) {
+            Group group = (Group) entity;
+            if (group.getId() == group.getGroupId()) {
+                throw new IllegalArgumentException("Cycle in group hierarchy");
+            }
         }
 
         BaseObjectManager<T> manager = Context.getManager(baseClass);
@@ -125,9 +130,6 @@ public abstract class BaseObjectResource<T extends BaseModel> extends BaseResour
         BaseObjectManager<T> manager = Context.getManager(baseClass);
         if (manager != null) {
             manager.removeItem(id);
-            if (manager instanceof ExtendedObjectManager) {
-                ((ExtendedObjectManager<T>) manager).refreshExtendedPermissions();
-            }
         } else {
             storage.removeObject(baseClass, new Request(new Condition.Equals("id", "id", id)));
         }
@@ -137,7 +139,6 @@ public abstract class BaseObjectResource<T extends BaseModel> extends BaseResour
 
         if (baseClass.equals(Group.class) || baseClass.equals(Device.class) || baseClass.equals(User.class)) {
             if (baseClass.equals(Group.class)) {
-                Context.getGroupsManager().refreshItems();
                 Context.getDeviceManager().updateDeviceCache(true);
             }
             Context.getPermissionsManager().refreshDeviceAndGroupPermissions();
diff --git a/src/main/java/org/traccar/database/DeviceManager.java b/src/main/java/org/traccar/database/DeviceManager.java
index 9ba486988..29c17c41f 100644
--- a/src/main/java/org/traccar/database/DeviceManager.java
+++ b/src/main/java/org/traccar/database/DeviceManager.java
@@ -46,6 +46,7 @@ public class DeviceManager extends BaseObjectManager<Device> implements Identity
     private static final Logger LOGGER = LoggerFactory.getLogger(DeviceManager.class);
 
     private final Config config;
+    private final CacheManager cacheManager;
     private final ConnectionManager connectionManager;
     private final long dataRefreshDelay;
 
@@ -56,9 +57,11 @@ public class DeviceManager extends BaseObjectManager<Device> implements Identity
 
     private final Map<Long, DeviceState> deviceStates = new ConcurrentHashMap<>();
 
-    public DeviceManager(Config config, DataManager dataManager, ConnectionManager connectionManager) {
+    public DeviceManager(
+            Config config, CacheManager cacheManager, DataManager dataManager, ConnectionManager connectionManager) {
         super(dataManager, Device.class);
         this.config = config;
+        this.cacheManager = cacheManager;
         this.connectionManager = connectionManager;
         try {
             writeLock();
@@ -351,8 +354,8 @@ public class DeviceManager extends BaseObjectManager<Device> implements Identity
             result = device.getAttributes().get(attributeName);
             if (result == null) {
                 long groupId = device.getGroupId();
-                while (groupId != 0) {
-                    Group group = Context.getGroupsManager().getById(groupId);
+                while (groupId > 0) {
+                    Group group = cacheManager.getObject(Group.class, device.getGroupId());
                     if (group != null) {
                         result = group.getAttributes().get(attributeName);
                         if (result != null) {
diff --git a/src/main/java/org/traccar/database/ExtendedObjectManager.java b/src/main/java/org/traccar/database/ExtendedObjectManager.java
deleted file mode 100644
index fe0ebb96e..000000000
--- a/src/main/java/org/traccar/database/ExtendedObjectManager.java
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * 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.traccar.database;
-
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.model.Device;
-import org.traccar.model.Group;
-import org.traccar.model.Permission;
-import org.traccar.model.BaseModel;
-import org.traccar.storage.StorageException;
-
-public abstract class ExtendedObjectManager<T extends BaseModel> extends SimpleObjectManager<T> {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(ExtendedObjectManager.class);
-
-    private final Map<Long, Set<Long>> deviceItems = new ConcurrentHashMap<>();
-    private final Map<Long, Set<Long>> deviceItemsWithGroups = new ConcurrentHashMap<>();
-    private final Map<Long, Set<Long>> groupItems = new ConcurrentHashMap<>();
-
-    protected ExtendedObjectManager(DataManager dataManager, Class<T> baseClass) {
-        super(dataManager, baseClass);
-        refreshExtendedPermissions();
-    }
-
-    public Set<Long> getAllDeviceItems(long deviceId) {
-        try {
-            readLock();
-            Set<Long> result = deviceItemsWithGroups.get(deviceId);
-            if (result != null) {
-                return new HashSet<>(result);
-            } else {
-                return new HashSet<>();
-            }
-        } finally {
-            readUnlock();
-        }
-    }
-
-    @Override
-    public void removeItem(long itemId) throws StorageException {
-        super.removeItem(itemId);
-        refreshExtendedPermissions();
-    }
-
-    public void refreshExtendedPermissions() {
-        if (getDataManager() != null) {
-            try {
-                Collection<Permission> databaseGroupPermissions =
-                        getDataManager().getPermissions(Group.class, getBaseClass());
-
-                Collection<Permission> databaseDevicePermissions =
-                        getDataManager().getPermissions(Device.class, getBaseClass());
-
-                writeLock();
-
-                groupItems.clear();
-                deviceItems.clear();
-                deviceItemsWithGroups.clear();
-
-                for (Permission groupPermission : databaseGroupPermissions) {
-                    groupItems
-                            .computeIfAbsent(groupPermission.getOwnerId(), key -> new HashSet<>())
-                            .add(groupPermission.getPropertyId());
-                }
-
-                for (Permission devicePermission : databaseDevicePermissions) {
-                    deviceItems
-                            .computeIfAbsent(devicePermission.getOwnerId(), key -> new HashSet<>())
-                            .add(devicePermission.getPropertyId());
-                    deviceItemsWithGroups
-                            .computeIfAbsent(devicePermission.getOwnerId(), key -> new HashSet<>())
-                            .add(devicePermission.getPropertyId());
-                }
-
-                for (Device device : getDataManager().getObjects(Device.class)) {
-                    long groupId = device.getGroupId();
-                    while (groupId > 0) {
-                        deviceItemsWithGroups
-                                .computeIfAbsent(device.getId(), key -> new HashSet<>())
-                                .addAll(groupItems.getOrDefault(groupId, new HashSet<>()));
-                        Group group = Context.getGroupsManager().getById(groupId);
-                        groupId = group != null ? group.getGroupId() : 0;
-                    }
-                }
-
-            } catch (StorageException | ClassNotFoundException error) {
-                LOGGER.warn("Refresh permissions error", error);
-            } finally {
-                writeUnlock();
-            }
-        }
-    }
-}
diff --git a/src/main/java/org/traccar/database/GroupsManager.java b/src/main/java/org/traccar/database/GroupsManager.java
deleted file mode 100644
index 4df848042..000000000
--- a/src/main/java/org/traccar/database/GroupsManager.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * 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.traccar.database;
-
-import java.util.HashSet;
-import java.util.Set;
-
-import org.traccar.model.Group;
-import org.traccar.storage.StorageException;
-
-public class GroupsManager extends BaseObjectManager<Group> {
-
-    public GroupsManager(DataManager dataManager) {
-        super(dataManager, Group.class);
-    }
-
-    private void checkGroupCycles(Group group) {
-        Set<Long> groups = new HashSet<>();
-        while (group != null) {
-            if (groups.contains(group.getId())) {
-                throw new IllegalArgumentException("Cycle in group hierarchy");
-            }
-            groups.add(group.getId());
-            group = getById(group.getGroupId());
-        }
-    }
-
-    @Override
-    public Set<Long> getAllItems() {
-        Set<Long> result = super.getAllItems();
-        if (result.isEmpty()) {
-            refreshItems();
-            result = super.getAllItems();
-        }
-        return result;
-    }
-
-    @Override
-    protected void addNewItem(Group group) {
-        checkGroupCycles(group);
-        super.addNewItem(group);
-    }
-
-    @Override
-    public void updateItem(Group group) throws StorageException {
-        checkGroupCycles(group);
-        super.updateItem(group);
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/PermissionsManager.java b/src/main/java/org/traccar/database/PermissionsManager.java
index 833480eea..595e236fa 100644
--- a/src/main/java/org/traccar/database/PermissionsManager.java
+++ b/src/main/java/org/traccar/database/PermissionsManager.java
@@ -162,9 +162,8 @@ public class PermissionsManager {
             groupPermissions.clear();
             devicePermissions.clear();
             try {
-                GroupTree groupTree = new GroupTree(Context.getGroupsManager().getItems(
-                        Context.getGroupsManager().getAllItems()),
-                        Context.getDeviceManager().getAllDevices());
+                var groups = dataManager.getObjects(Group.class);
+                GroupTree groupTree = new GroupTree(groups, Context.getDeviceManager().getAllDevices());
                 for (Permission groupPermission : dataManager.getPermissions(User.class, Group.class)) {
                     Set<Long> userGroupPermissions = getGroupPermissions(groupPermission.getOwnerId());
                     Set<Long> userDevicePermissions = getDevicePermissions(groupPermission.getOwnerId());
@@ -182,9 +181,9 @@ public class PermissionsManager {
                 }
 
                 groupDevices.clear();
-                for (long groupId : Context.getGroupsManager().getAllItems()) {
-                    for (Device device : groupTree.getDevices(groupId)) {
-                        getGroupDevices(groupId).add(device.getId());
+                for (var group : groups) {
+                    for (Device device : groupTree.getDevices(group.getId())) {
+                        getGroupDevices(group.getId()).add(device.getId());
                     }
                 }
 
diff --git a/src/main/java/org/traccar/reports/EventsReportProvider.java b/src/main/java/org/traccar/reports/EventsReportProvider.java
index 5148695a9..b1f7149a2 100644
--- a/src/main/java/org/traccar/reports/EventsReportProvider.java
+++ b/src/main/java/org/traccar/reports/EventsReportProvider.java
@@ -134,8 +134,9 @@ public class EventsReportProvider {
             Device device = Context.getIdentityManager().getById(deviceId);
             deviceEvents.setDeviceName(device.getName());
             sheetNames.add(WorkbookUtil.createSafeSheetName(deviceEvents.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", "id", device.getGroupId())));
                 if (group != null) {
                     deviceEvents.setGroupName(group.getName());
                 }
diff --git a/src/main/java/org/traccar/reports/RouteReportProvider.java b/src/main/java/org/traccar/reports/RouteReportProvider.java
index b1a806960..903dfe369 100644
--- a/src/main/java/org/traccar/reports/RouteReportProvider.java
+++ b/src/main/java/org/traccar/reports/RouteReportProvider.java
@@ -28,6 +28,9 @@ import org.traccar.reports.common.ReportUtils;
 import org.traccar.reports.model.DeviceReportSection;
 import org.traccar.storage.Storage;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
 import javax.inject.Inject;
 import java.io.File;
@@ -77,8 +80,9 @@ public class RouteReportProvider {
             Device device = Context.getIdentityManager().getById(deviceId);
             deviceRoutes.setDeviceName(device.getName());
             sheetNames.add(WorkbookUtil.createSafeSheetName(deviceRoutes.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", "id", device.getGroupId())));
                 if (group != null) {
                     deviceRoutes.setGroupName(group.getName());
                 }
diff --git a/src/main/java/org/traccar/reports/StopsReportProvider.java b/src/main/java/org/traccar/reports/StopsReportProvider.java
index a6a9a94cc..b9d36eb97 100644
--- a/src/main/java/org/traccar/reports/StopsReportProvider.java
+++ b/src/main/java/org/traccar/reports/StopsReportProvider.java
@@ -28,6 +28,9 @@ import org.traccar.reports.model.DeviceReportSection;
 import org.traccar.reports.model.StopReportItem;
 import org.traccar.storage.Storage;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
 import javax.inject.Inject;
 import java.io.File;
@@ -85,8 +88,9 @@ public class StopsReportProvider {
             Device device = Context.getIdentityManager().getById(deviceId);
             deviceStops.setDeviceName(device.getName());
             sheetNames.add(WorkbookUtil.createSafeSheetName(deviceStops.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", "id", device.getGroupId())));
                 if (group != null) {
                     deviceStops.setGroupName(group.getName());
                 }
diff --git a/src/main/java/org/traccar/reports/TripsReportProvider.java b/src/main/java/org/traccar/reports/TripsReportProvider.java
index bff559664..97cfccf74 100644
--- a/src/main/java/org/traccar/reports/TripsReportProvider.java
+++ b/src/main/java/org/traccar/reports/TripsReportProvider.java
@@ -28,6 +28,9 @@ import org.traccar.reports.model.DeviceReportSection;
 import org.traccar.reports.model.TripReportItem;
 import org.traccar.storage.Storage;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
 import javax.inject.Inject;
 import java.io.File;
@@ -85,8 +88,9 @@ public class TripsReportProvider {
             Device device = Context.getIdentityManager().getById(deviceId);
             deviceTrips.setDeviceName(device.getName());
             sheetNames.add(WorkbookUtil.createSafeSheetName(deviceTrips.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", "id", device.getGroupId())));
                 if (group != null) {
                     deviceTrips.setGroupName(group.getName());
                 }