1 files changed, 88 insertions, 0 deletions

diff --git a/src/org/traccar/GenericProtocolDecoder.java b/src/org/traccar/GenericProtocolDecoder.java
new file mode 100644
index 000000000..0d79818ab
--- /dev/null
+++ b/src/org/traccar/GenericProtocolDecoder.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2012 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 java.util.Timer;
+import java.util.TimerTask;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneDecoder;
+import org.jboss.netty.channel.ChannelEvent;
+import org.jboss.netty.channel.ChannelState;
+import org.jboss.netty.channel.ChannelStateEvent;
+
+/**
+ * Base class for protocol decoders
+ */
+public abstract class GenericProtocolDecoder extends OneToOneDecoder {
+
+    /**
+     * Data manager
+     */
+    private DataManager dataManager;
+
+    /**
+     * Return data manager
+     */
+    public DataManager getDataManager() {
+        return dataManager;
+    }
+
+    /**
+     * Reset connection delay
+     */
+    private Integer resetDelay;
+    
+    /**
+     * Initialize variables
+     */
+    public GenericProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        this.dataManager = dataManager;
+        this.resetDelay = resetDelay;
+    }
+    
+    /**
+     * Disconnect channel
+     */
+    private class DisconnectTask extends TimerTask {
+        private Channel channel;
+
+        public DisconnectTask(Channel channel) {
+            this.channel = channel;
+        }
+
+        public void run() {
+            channel.disconnect();
+        }
+    }
+
+    /**
+     * Handle connect event
+     */
+    @Override
+    public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
+        super.handleUpstream(ctx, evt);
+
+        if (evt instanceof ChannelStateEvent) {
+            ChannelStateEvent event = (ChannelStateEvent) evt;
+
+            if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) {
+                new Timer().schedule(new GenericProtocolDecoder.DisconnectTask(evt.getChannel()), resetDelay);
+            }
+        }
+    }
+
+}