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Diffstat (limited to 'src/org/traccar/database/ConnectionManager.java')
-rw-r--r--src/org/traccar/database/ConnectionManager.java111
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diff --git a/src/org/traccar/database/ConnectionManager.java b/src/org/traccar/database/ConnectionManager.java
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+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.net.SocketAddress;
+import java.sql.SQLException;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.jboss.netty.channel.Channel;
+import org.traccar.Protocol;
+import org.traccar.helper.Log;
+import org.traccar.model.Position;
+
+public class ConnectionManager {
+
+ private Map<String, ActiveDevice> activeDevices = new HashMap<String, ActiveDevice>();
+ private final Map<Long, Position> positions = new HashMap<Long, Position>();
+ private final Map<Long, Set<DataCacheListener>> listeners = new HashMap<Long, Set<DataCacheListener>>();
+
+ public void init(DataManager dataManager) {
+ try {
+ Collection<Position> positions = dataManager.getLatestPositions();
+ for (Position position : positions) {
+ this.positions.put(position.getDeviceId(), position);
+ }
+ } catch (SQLException error) {
+ Log.warning(error);
+ }
+ }
+
+ public void setActiveDevice(String uniqueId, Protocol protocol, Channel channel, SocketAddress remoteAddress) {
+ activeDevices.put(uniqueId, new ActiveDevice(uniqueId, protocol, channel, remoteAddress));
+ }
+
+ public ActiveDevice getActiveDevice(String uniqueId) {
+ return activeDevices.get(uniqueId);
+ }
+
+ public synchronized void update(Position position) {
+ long deviceId = position.getDeviceId();
+ positions.put(deviceId, position);
+ if (listeners.containsKey(deviceId)) {
+ for (DataCacheListener listener : listeners.get(deviceId)) {
+ listener.onUpdate(position);
+ }
+ }
+ }
+
+ public synchronized Collection<Position> getInitialState(Collection<Long> devices) {
+
+ List<Position> result = new LinkedList<Position>();
+
+ for (long device : devices) {
+ if (positions.containsKey(device)) {
+ result.add(positions.get(device));
+ }
+ }
+
+ return result;
+ }
+
+ public static interface DataCacheListener {
+ public void onUpdate(Position position);
+ }
+
+ public void addListener(Collection<Long> devices, DataCacheListener listener) {
+ for (long deviceId : devices) {
+ addListener(deviceId, listener);
+ }
+ }
+
+ public synchronized void addListener(long deviceId, DataCacheListener listener) {
+ if (!listeners.containsKey(deviceId)) {
+ listeners.put(deviceId, new HashSet<DataCacheListener>());
+ }
+ listeners.get(deviceId).add(listener);
+ }
+
+ public void removeListener(Collection<Long> devices, DataCacheListener listener) {
+ for (long deviceId : devices) {
+ removeListener(deviceId, listener);
+ }
+ }
+
+ public synchronized void removeListener(long deviceId, DataCacheListener listener) {
+ if (!listeners.containsKey(deviceId)) {
+ listeners.put(deviceId, new HashSet<DataCacheListener>());
+ }
+ listeners.get(deviceId).remove(listener);
+ }
+
+}