From 7b17e8d1fe1dc85b5a324776cbe87d1525230104 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Tue, 27 Sep 2016 16:14:30 +1300
Subject: Implement eeLink protocol commands

---
 src/org/traccar/protocol/EelinkProtocol.java       |  9 ++-
 .../traccar/protocol/EelinkProtocolDecoder.java    |  2 +-
 .../traccar/protocol/EelinkProtocolEncoder.java    | 68 ++++++++++++++++++++++
 3 files changed, 77 insertions(+), 2 deletions(-)
 create mode 100644 src/org/traccar/protocol/EelinkProtocolEncoder.java

(limited to 'src')

diff --git a/src/org/traccar/protocol/EelinkProtocol.java b/src/org/traccar/protocol/EelinkProtocol.java
index 4da051159..e91fc5efd 100644
--- a/src/org/traccar/protocol/EelinkProtocol.java
+++ b/src/org/traccar/protocol/EelinkProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ * Copyright 2015 - 2016 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.
@@ -20,6 +20,7 @@ import org.jboss.netty.channel.ChannelPipeline;
 import org.jboss.netty.handler.codec.frame.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.TrackerServer;
+import org.traccar.model.Command;
 
 import java.util.List;
 
@@ -27,6 +28,11 @@ public class EelinkProtocol extends BaseProtocol {
 
     public EelinkProtocol() {
         super("eelink");
+        setSupportedCommands(
+                Command.TYPE_CUSTOM,
+                Command.TYPE_ENGINE_STOP,
+                Command.TYPE_ENGINE_RESUME,
+                Command.TYPE_REBOOT_DEVICE);
     }
 
     @Override
@@ -35,6 +41,7 @@ public class EelinkProtocol extends BaseProtocol {
             @Override
             protected void addSpecificHandlers(ChannelPipeline pipeline) {
                 pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(1024, 3, 2));
+                pipeline.addLast("objectEncoder", new EelinkProtocolEncoder());
                 pipeline.addLast("objectDecoder", new EelinkProtocolDecoder(EelinkProtocol.this));
             }
         });
diff --git a/src/org/traccar/protocol/EelinkProtocolDecoder.java b/src/org/traccar/protocol/EelinkProtocolDecoder.java
index 87d706aff..10a8304c9 100644
--- a/src/org/traccar/protocol/EelinkProtocolDecoder.java
+++ b/src/org/traccar/protocol/EelinkProtocolDecoder.java
@@ -40,7 +40,7 @@ public class EelinkProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_STATE = 0x05;
     public static final int MSG_SMS = 0x06;
     public static final int MSG_OBD = 0x07;
-    public static final int MSG_INTERACTIVE = 0x80;
+    public static final int MSG_DOWNLINK = 0x80;
     public static final int MSG_DATA = 0x81;
 
     public static final int MSG_NORMAL = 0x12;
diff --git a/src/org/traccar/protocol/EelinkProtocolEncoder.java b/src/org/traccar/protocol/EelinkProtocolEncoder.java
new file mode 100644
index 000000000..a7e96aa97
--- /dev/null
+++ b/src/org/traccar/protocol/EelinkProtocolEncoder.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2016 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.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Context;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.Log;
+import org.traccar.model.Command;
+import org.traccar.model.Device;
+
+import java.nio.charset.StandardCharsets;
+
+public class EelinkProtocolEncoder extends BaseProtocolEncoder {
+
+    private ChannelBuffer encodeContent(String content) {
+
+        ChannelBuffer buf = ChannelBuffers.dynamicBuffer();
+
+        buf.writeByte(0x67);
+        buf.writeByte(0x67);
+        buf.writeByte(EelinkProtocolDecoder.MSG_DOWNLINK);
+        buf.writeShort(2 + 1 + 4 + content.length()); // length
+        buf.writeShort(0); // index
+
+        buf.writeByte(0x01); // command
+        buf.writeInt(0); // server id
+        buf.writeBytes(content.getBytes(StandardCharsets.UTF_8));
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        switch (command.getType()) {
+            case Command.TYPE_CUSTOM:
+                return encodeContent((String) command.getAttributes().get(Command.KEY_DATA));
+            case Command.TYPE_ENGINE_STOP:
+                return encodeContent("RELAY,1#");
+            case Command.TYPE_ENGINE_RESUME:
+                return encodeContent("RELAY,0#");
+            case Command.TYPE_REBOOT_DEVICE:
+                return encodeContent("RESET#");
+            default:
+                Log.warning(new UnsupportedOperationException(command.getType()));
+                break;
+        }
+
+        return null;
+    }
+
+}
-- 
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