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Diffstat (limited to 'src/org/traccar/database/GroupsManager.java')
-rw-r--r--src/org/traccar/database/GroupsManager.java104
1 files changed, 104 insertions, 0 deletions
diff --git a/src/org/traccar/database/GroupsManager.java b/src/org/traccar/database/GroupsManager.java
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+/*
+ * Copyright 2017 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.sql.SQLException;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.traccar.Context;
+import org.traccar.helper.Log;
+import org.traccar.model.BaseModel;
+import org.traccar.model.Group;
+
+public class GroupsManager extends BaseObjectManager implements ManagableObjects {
+
+ private AtomicLong groupsLastUpdate = new AtomicLong();
+ private final long dataRefreshDelay;
+
+ public GroupsManager(DataManager dataManager) {
+ super(dataManager, Group.class);
+ dataRefreshDelay = Context.getConfig().getLong("database.refreshDelay",
+ DeviceManager.DEFAULT_REFRESH_DELAY) * 1000;
+ }
+
+ private void checkGroupCycles(BaseModel 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) group).getGroupId());
+ }
+ }
+
+ private void updateGroupCache(boolean force) throws SQLException {
+ long lastUpdate = groupsLastUpdate.get();
+ if ((force || System.currentTimeMillis() - lastUpdate > dataRefreshDelay)
+ && groupsLastUpdate.compareAndSet(lastUpdate, System.currentTimeMillis())) {
+ refreshItems();
+ }
+ }
+
+ @Override
+ public Set<Long> getAllItems() {
+ Set<Long> result = super.getAllItems();
+ if (result.isEmpty()) {
+ try {
+ updateGroupCache(true);
+ } catch (SQLException e) {
+ Log.warning(e);
+ }
+ result = super.getAllItems();
+ }
+ return result;
+ }
+
+ @Override
+ protected void addNewItem(BaseModel item) {
+ checkGroupCycles(item);
+ super.addNewItem(item);
+ }
+
+ @Override
+ protected void updateCachedItem(BaseModel item) {
+ checkGroupCycles(item);
+ super.updateCachedItem(item);
+ }
+
+ @Override
+ public Set<Long> getUserItems(long userId) {
+ if (Context.getPermissionsManager() != null) {
+ return Context.getPermissionsManager().getGroupPermissions(userId);
+ } else {
+ return new HashSet<>();
+ }
+ }
+
+ @Override
+ public Set<Long> getManagedItems(long userId) {
+ Set<Long> result = new HashSet<>();
+ result.addAll(getUserItems(userId));
+ for (long managedUserId : Context.getUsersManager().getUserItems(userId)) {
+ result.addAll(getUserItems(managedUserId));
+ }
+ return result;
+ }
+
+}