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authorAbyss777 <abyss@fox5.ru>2017-07-19 15:24:55 +0500
committerAbyss777 <abyss@fox5.ru>2017-07-19 15:24:55 +0500
commita9478ded48de140d47d17def1ee5329267fe6088 (patch)
treeadc5a9177fd5adcf10a8b56ee4620780dfc13cd9 /src/org/traccar/database/SimpleObjectManager.java
parentcb0d7cccaecfe049e04defd90884976ac1e982f9 (diff)
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Refactored four managers
Diffstat (limited to 'src/org/traccar/database/SimpleObjectManager.java')
-rw-r--r--src/org/traccar/database/SimpleObjectManager.java164
1 files changed, 164 insertions, 0 deletions
diff --git a/src/org/traccar/database/SimpleObjectManager.java b/src/org/traccar/database/SimpleObjectManager.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.Collection;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.traccar.Context;
+import org.traccar.helper.Log;
+import org.traccar.model.BaseUserPermission;
+import org.traccar.model.Identifiable;
+
+public abstract class SimpleObjectManager {
+
+ private final DataManager dataManager;
+
+ private final Map<Long, Identifiable> items = new ConcurrentHashMap<>();
+ private final Map<Long, Set<Long>> userItems = new ConcurrentHashMap<>();
+
+ private Class<? extends Identifiable> baseClass;
+ private Class<? extends BaseUserPermission> permissionClass;
+
+ protected SimpleObjectManager(DataManager dataManager,
+ Class<? extends Identifiable> baseClass,
+ Class<? extends BaseUserPermission> permissionClass) {
+ this.dataManager = dataManager;
+ this.baseClass = baseClass;
+ this.permissionClass = permissionClass;
+ }
+
+ protected final DataManager getDataManager() {
+ return dataManager;
+ }
+
+ protected final Class<? extends Identifiable> getBaseClass() {
+ return baseClass;
+ }
+
+ public final Identifiable getById(long itemId) {
+ return items.get(itemId);
+ }
+
+ protected final void clearItems() {
+ items.clear();
+ }
+
+ protected final void putItem(long itemId, Identifiable item) {
+ items.put(itemId, item);
+ }
+
+ protected final void removeCachedItem(long itemId) {
+ items.remove(itemId);
+ }
+
+ public final Set<Long> getUserItems(long userId) {
+ if (!userItems.containsKey(userId)) {
+ userItems.put(userId, new HashSet<Long>());
+ }
+ return userItems.get(userId);
+ }
+
+ protected final void clearUserItems() {
+ userItems.clear();
+ }
+
+ public final boolean checkItemPermission(long userId, long itemId) {
+ return getUserItems(userId).contains(itemId);
+ }
+
+ public void refreshItems() {
+ if (dataManager != null) {
+ try {
+ clearItems();
+ for (Identifiable item : dataManager.getObjects(this.baseClass)) {
+ putItem(item.getId(), item);
+ }
+ } catch (SQLException error) {
+ Log.warning(error);
+ }
+ }
+ refreshUserItems();
+ }
+
+ public final void refreshUserItems() {
+ if (dataManager != null) {
+ try {
+ clearUserItems();
+ for (BaseUserPermission permission : dataManager.getObjects(this.permissionClass)) {
+ getUserItems(permission.getUserId()).add(permission.getSlaveId());
+ }
+ } catch (SQLException error) {
+ Log.warning(error);
+ }
+ }
+ }
+
+ public void addItem(Identifiable item) throws SQLException {
+ dataManager.addObject(item);
+ putItem(item.getId(), item);
+ }
+
+ public void updateItem(Identifiable item) throws SQLException {
+ dataManager.updateObject(item);
+ putItem(item.getId(), item);
+ }
+
+ public void removeItem(long itemId) throws SQLException {
+ Identifiable item = getById(itemId);
+ if (item != null) {
+ dataManager.removeObject(item.getClass(), itemId);
+ removeCachedItem(itemId);
+ }
+ refreshUserItems();
+ }
+
+// public final Collection<? extends Identifiable> getItems(Set<Long> itemIds) {
+// Collection<Identifiable> result = new LinkedList<>();
+// for (long itemId : itemIds) {
+// result.add(getById(itemId));
+// }
+// return result;
+// }
+
+ public final <T> Collection<T> getItems(Class<T> clazz, Set<Long> itemIds) {
+ Collection<T> result = new LinkedList<>();
+ for (long itemId : itemIds) {
+ result.add((T) getById(itemId));
+ }
+ return result;
+ }
+
+ public final Set<Long> getAllItems() {
+ return items.keySet();
+ }
+
+ public final Set<Long> getManagedItems(long userId) {
+ Set<Long> result = new HashSet<>();
+ result.addAll(getUserItems(userId));
+ for (long managedUserId : Context.getPermissionsManager().getUserPermissions(userId)) {
+ result.addAll(getUserItems(managedUserId));
+ }
+ return result;
+ }
+
+}