Implement location provider channel handler

1 files changed, 68 insertions, 0 deletions

diff --git a/src/org/traccar/LocationProviderHandler.java b/src/org/traccar/LocationProviderHandler.java
new file mode 100644
index 000000000..024d9fb95
--- /dev/null
+++ b/src/org/traccar/LocationProviderHandler.java
@@ -0,0 +1,68 @@
+/*
+ * 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;
+
+import org.jboss.netty.channel.ChannelEvent;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.channel.ChannelUpstreamHandler;
+import org.jboss.netty.channel.Channels;
+import org.jboss.netty.channel.MessageEvent;
+import org.traccar.location.LocationProvider;
+import org.traccar.model.Position;
+
+public class LocationProviderHandler implements ChannelUpstreamHandler {
+
+    private final LocationProvider locationProvider;
+
+    public LocationProviderHandler(LocationProvider locationProvider) {
+        this.locationProvider = locationProvider;
+    }
+
+    @Override
+    public void handleUpstream(final ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
+        if (!(evt instanceof MessageEvent)) {
+            ctx.sendUpstream(evt);
+            return;
+        }
+
+        final MessageEvent e = (MessageEvent) evt;
+        Object message = e.getMessage();
+        if (message instanceof Position) {
+            final Position position = (Position) message;
+            if (locationProvider != null && position.getOutdated()) {
+                locationProvider.getLocation(position.getAttributes(), new LocationProvider.LocationProviderCallback() {
+                    @Override
+                    public void onSuccess(double latitude, double longitude) {
+                        position.setFixTime(position.getDeviceTime());
+                        position.setLatitude(latitude);
+                        position.setLongitude(longitude);
+                        Channels.fireMessageReceived(ctx, position, e.getRemoteAddress());
+                    }
+
+                    @Override
+                    public void onFailure() {
+                        Channels.fireMessageReceived(ctx, position, e.getRemoteAddress());
+                    }
+                });
+            } else {
+                Channels.fireMessageReceived(ctx, position, e.getRemoteAddress());
+            }
+        } else {
+            Channels.fireMessageReceived(ctx, message, e.getRemoteAddress());
+        }
+    }
+
+}