Implement commands support for Noran

1 files changed, 71 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/NoranProtocolEncoder.java b/src/org/traccar/protocol/NoranProtocolEncoder.java
new file mode 100644
index 000000000..6a5bfdcb2
--- /dev/null
+++ b/src/org/traccar/protocol/NoranProtocolEncoder.java
@@ -0,0 +1,71 @@
+/*
+ * 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.helper.Log;
+import org.traccar.model.Command;
+
+import java.nio.ByteOrder;
+import java.nio.charset.Charset;
+
+public class NoranProtocolEncoder extends BaseProtocolEncoder {
+
+    private ChannelBuffer encodeContent(String content) {
+
+        ChannelBuffer buf = ChannelBuffers.buffer(ByteOrder.LITTLE_ENDIAN, 12 + 56);
+
+        buf.writeBytes(
+                ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, "\r\n*KW", Charset.defaultCharset()));
+        buf.writeByte(0);
+        buf.writeShort(buf.capacity());
+        buf.writeShort(NoranProtocolDecoder.MSG_CONTROL);
+        buf.writeInt(0); // gis ip
+        buf.writeShort(0); // gis port
+        buf.writeBytes(content.getBytes(Charset.defaultCharset()));
+        buf.writerIndex(buf.writerIndex() + 50 - content.length());
+        buf.writeBytes(
+                ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, "\r\n", Charset.defaultCharset()));
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        switch (command.getType()) {
+            case Command.TYPE_POSITION_SINGLE:
+                return encodeContent("*KW,000,000,000000#");
+            case Command.TYPE_POSITION_PERIODIC:
+                int interval = ((Number) command.getAttributes().get(Command.KEY_FREQUENCY)).intValue();
+                return encodeContent("*KW,000,002,000000," + interval + "#");
+            case Command.TYPE_POSITION_STOP:
+                return encodeContent("*KW,000,002,000000,0#");
+            case Command.TYPE_ENGINE_STOP:
+                return encodeContent("*KW,000,007,000000,0#");
+            case Command.TYPE_ENGINE_RESUME:
+                return encodeContent("*KW,000,007,000000,1#");
+            default:
+                Log.warning(new UnsupportedOperationException(command.getType()));
+                break;
+        }
+
+        return null;
+    }
+
+}