1 files changed, 96 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/api/AsyncSocket.java b/src/main/java/org/traccar/api/AsyncSocket.java
new file mode 100644
index 000000000..906d16b5b
--- /dev/null
+++ b/src/main/java/org/traccar/api/AsyncSocket.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2015 - 2016 Anton Tananaev (anton@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.api;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import org.eclipse.jetty.websocket.api.Session;
+import org.eclipse.jetty.websocket.api.WebSocketAdapter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.Context;
+import org.traccar.database.ConnectionManager;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+public class AsyncSocket extends WebSocketAdapter implements ConnectionManager.UpdateListener {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(AsyncSocket.class);
+
+    private static final String KEY_DEVICES = "devices";
+    private static final String KEY_POSITIONS = "positions";
+    private static final String KEY_EVENTS = "events";
+
+    private long userId;
+
+    public AsyncSocket(long userId) {
+        this.userId = userId;
+    }
+
+    @Override
+    public void onWebSocketConnect(Session session) {
+        super.onWebSocketConnect(session);
+
+        Map<String, Collection<?>> data = new HashMap<>();
+        data.put(KEY_POSITIONS, Context.getDeviceManager().getInitialState(userId));
+        sendData(data);
+
+        Context.getConnectionManager().addListener(userId, this);
+    }
+
+    @Override
+    public void onWebSocketClose(int statusCode, String reason) {
+        super.onWebSocketClose(statusCode, reason);
+
+        Context.getConnectionManager().removeListener(userId, this);
+    }
+
+    @Override
+    public void onUpdateDevice(Device device) {
+        Map<String, Collection<?>> data = new HashMap<>();
+        data.put(KEY_DEVICES, Collections.singletonList(device));
+        sendData(data);
+    }
+
+    @Override
+    public void onUpdatePosition(Position position) {
+        Map<String, Collection<?>> data = new HashMap<>();
+        data.put(KEY_POSITIONS, Collections.singletonList(position));
+        sendData(data);
+    }
+
+    @Override
+    public void onUpdateEvent(Event event) {
+        Map<String, Collection<?>> data = new HashMap<>();
+        data.put(KEY_EVENTS, Collections.singletonList(event));
+        sendData(data);
+    }
+
+    private void sendData(Map<String, Collection<?>> data) {
+        if (!data.isEmpty() && isConnected()) {
+            try {
+                getRemote().sendString(Context.getObjectMapper().writeValueAsString(data), null);
+            } catch (JsonProcessingException e) {
+                LOGGER.warn("Socket JSON formatting error", e);
+            }
+        }
+    }
+}