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authorAnton Tananaev <anton.tananaev@gmail.com>2015-04-22 23:00:35 +1200
committerAnton Tananaev <anton.tananaev@gmail.com>2015-04-22 23:00:35 +1200
commitcefba4b9227c8aeb96e290f70689960541755f0d (patch)
treebe4dbe695d79e3b6cad12724ea596c3f112aff97 /src/org/traccar
parent05b0272bff05efaffcdfe416d1b258607a908d2b (diff)
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Add latest position cache
Diffstat (limited to 'src/org/traccar')
-rw-r--r--src/org/traccar/BasePipelineFactory.java13
-rw-r--r--src/org/traccar/ServerManager.java31
-rw-r--r--src/org/traccar/TrackerEventHandler.java16
-rw-r--r--src/org/traccar/database/DataCache.java74
4 files changed, 110 insertions, 24 deletions
diff --git a/src/org/traccar/BasePipelineFactory.java b/src/org/traccar/BasePipelineFactory.java
index 3a8d1f48f..469bbc49f 100644
--- a/src/org/traccar/BasePipelineFactory.java
+++ b/src/org/traccar/BasePipelineFactory.java
@@ -21,26 +21,22 @@ import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.*;
import org.jboss.netty.handler.logging.LoggingHandler;
import org.jboss.netty.handler.timeout.IdleStateHandler;
+import org.traccar.database.DataCache;
+import org.traccar.database.DataManager;
import org.traccar.geocode.ReverseGeocoder;
import org.traccar.helper.Log;
-import org.traccar.database.DataManager;
-/**
- * Base pipeline factory
- */
public abstract class BasePipelineFactory implements ChannelPipelineFactory {
private final TrackerServer server;
private final DataManager dataManager;
+ private final DataCache dataCache;
private final Boolean loggerEnabled;
private final ReverseGeocoder reverseGeocoder;
private FilterHandler filterHandler;
private Integer resetDelay;
private Boolean processInvalidPositions;
- /**
- * Open channel handler
- */
protected class OpenChannelHandler extends SimpleChannelHandler {
private final TrackerServer server;
@@ -90,6 +86,7 @@ public abstract class BasePipelineFactory implements ChannelPipelineFactory {
public BasePipelineFactory(ServerManager serverManager, TrackerServer server, String protocol) {
this.server = server;
dataManager = serverManager.getDataManager();
+ dataCache = serverManager.getDataCache();
loggerEnabled = serverManager.isLoggerEnabled();
reverseGeocoder = serverManager.getReverseGeocoder();
@@ -133,7 +130,7 @@ public abstract class BasePipelineFactory implements ChannelPipelineFactory {
if (reverseGeocoder != null) {
pipeline.addLast("geocoder", new ReverseGeocoderHandler(reverseGeocoder, processInvalidPositions));
}
- pipeline.addLast("handler", new TrackerEventHandler(dataManager));
+ pipeline.addLast("handler", new TrackerEventHandler(dataManager, dataCache));
return pipeline;
}
diff --git a/src/org/traccar/ServerManager.java b/src/org/traccar/ServerManager.java
index 184b54078..31da6848f 100644
--- a/src/org/traccar/ServerManager.java
+++ b/src/org/traccar/ServerManager.java
@@ -15,6 +15,14 @@
*/
package org.traccar;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.ByteOrder;
+import java.sql.SQLException;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Properties;
import org.jboss.netty.bootstrap.ConnectionlessBootstrap;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.channel.ChannelPipeline;
@@ -26,21 +34,16 @@ import org.jboss.netty.handler.codec.http.HttpRequestDecoder;
import org.jboss.netty.handler.codec.http.HttpResponseEncoder;
import org.jboss.netty.handler.codec.string.StringDecoder;
import org.jboss.netty.handler.codec.string.StringEncoder;
+import org.traccar.database.DataCache;
import org.traccar.database.DataManager;
import org.traccar.geocode.GoogleReverseGeocoder;
import org.traccar.geocode.NominatimReverseGeocoder;
import org.traccar.geocode.ReverseGeocoder;
import org.traccar.helper.Log;
import org.traccar.http.WebServer;
+import org.traccar.model.Position;
import org.traccar.protocol.*;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.nio.ByteOrder;
-import java.sql.SQLException;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Properties;
/**
* Server Manager
@@ -65,6 +68,12 @@ public class ServerManager {
return dataManager;
}
+ private DataCache dataCache;
+
+ public DataCache getDataCache() {
+ return dataCache;
+ }
+
private ReverseGeocoder reverseGeocoder;
public ReverseGeocoder getReverseGeocoder() {
@@ -98,6 +107,14 @@ public class ServerManager {
}
dataManager = new DataManager(properties);
+ dataCache = new DataCache(dataManager);
+
+ dataCache.addListener(Arrays.asList(1l), new DataCache.DataCacheListener() {
+ @Override
+ public void onUpdate(Position position) {
+ System.out.println("position: " + position.getLatitude() + ":" + position.getLongitude());
+ }
+ });
initGeocoder(properties);
diff --git a/src/org/traccar/TrackerEventHandler.java b/src/org/traccar/TrackerEventHandler.java
index 39c70ccc7..ecce97fa4 100644
--- a/src/org/traccar/TrackerEventHandler.java
+++ b/src/org/traccar/TrackerEventHandler.java
@@ -19,23 +19,20 @@ import java.util.List;
import org.jboss.netty.channel.*;
import org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler;
import org.jboss.netty.handler.timeout.IdleStateEvent;
+import org.traccar.database.DataCache;
import org.traccar.helper.Log;
import org.traccar.database.DataManager;
import org.traccar.model.Position;
-/**
- * Tracker message handler
- */
@ChannelHandler.Sharable
public class TrackerEventHandler extends IdleStateAwareChannelHandler {
- /**
- * Data manager
- */
- private DataManager dataManager;
+ private final DataManager dataManager;
+ private final DataCache dataCache;
- TrackerEventHandler(DataManager newDataManager) {
- dataManager = newDataManager;
+ TrackerEventHandler(DataManager dataManager, DataCache dataCache) {
+ this.dataManager = dataManager;
+ this.dataCache = dataCache;
}
private Long processSinglePosition(Position position) {
@@ -77,6 +74,7 @@ public class TrackerEventHandler extends IdleStateAwareChannelHandler {
if (lastPostition != null) {
try {
dataManager.updateLatestPosition(lastPostition, id);
+ dataCache.update(lastPostition);
} catch (Exception error) {
Log.warning(error);
}
diff --git a/src/org/traccar/database/DataCache.java b/src/org/traccar/database/DataCache.java
new file mode 100644
index 000000000..f5aa3b1e9
--- /dev/null
+++ b/src/org/traccar/database/DataCache.java
@@ -0,0 +1,74 @@
+/*
+ * 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.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import org.traccar.model.Position;
+
+public class DataCache {
+
+ private final Map<Long, Position> positions = new HashMap<Long, Position>();
+ private final Map<Long, Set<DataCacheListener>> listeners = new HashMap<Long, Set<DataCacheListener>>();
+
+ public DataCache(DataManager dataManager) {
+ // TODO: load latest data from datavase
+ }
+
+ public void update(Position position) {
+ long device = position.getDeviceId();
+ positions.put(device, position);
+ if (listeners.containsKey(device)) {
+ for (DataCacheListener listener : listeners.get(device)) {
+ listener.onUpdate(position);
+ }
+ }
+ }
+
+ public static interface DataCacheListener {
+ public void onUpdate(Position position);
+ }
+
+ public void addListener(Collection<Long> devices, DataCacheListener listener) {
+ for (long device : devices) {
+ addListener(device, listener);
+ }
+ }
+
+ public void addListener(long device, DataCacheListener listener) {
+ if (!listeners.containsKey(device)) {
+ listeners.put(device, new HashSet<DataCacheListener>());
+ }
+ listeners.get(device).add(listener);
+ }
+
+ public void removeListener(Collection<Long> devices, DataCacheListener listener) {
+ for (long device : devices) {
+ removeListener(device, listener);
+ }
+ }
+
+ public void removeListener(long device, DataCacheListener listener) {
+ if (!listeners.containsKey(device)) {
+ listeners.put(device, new HashSet<DataCacheListener>());
+ }
+ listeners.get(device).remove(listener);
+ }
+
+}