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Diffstat (limited to 'src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java78
1 files changed, 78 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java
new file mode 100644
index 000000000..05560229f
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2015 - 2018 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.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Context;
+import org.traccar.helper.Checksum;
+import org.traccar.model.Command;
+
+import java.nio.charset.StandardCharsets;
+
+public class Gt06ProtocolEncoder extends BaseProtocolEncoder {
+
+ private ByteBuf encodeContent(long deviceId, String content) {
+
+ boolean language = Context.getIdentityManager().lookupAttributeBoolean(deviceId, "gt06.language", false, true);
+
+ ByteBuf buf = Unpooled.buffer();
+
+ buf.writeByte(0x78);
+ buf.writeByte(0x78);
+
+ buf.writeByte(1 + 1 + 4 + content.length() + 2 + 2 + (language ? 2 : 0)); // message length
+
+ buf.writeByte(0x80); // message type
+
+ buf.writeByte(4 + content.length()); // command length
+ buf.writeInt(0);
+ buf.writeBytes(content.getBytes(StandardCharsets.US_ASCII)); // command
+
+ if (language) {
+ buf.writeShort(2); // english language
+ }
+
+ buf.writeShort(0); // message index
+
+ buf.writeShort(Checksum.crc16(Checksum.CRC16_X25, buf.nioBuffer(2, buf.writerIndex() - 2)));
+
+ buf.writeByte('\r');
+ buf.writeByte('\n');
+
+ return buf;
+ }
+
+ @Override
+ protected Object encodeCommand(Command command) {
+
+ boolean alternative = Context.getIdentityManager().lookupAttributeBoolean(
+ command.getDeviceId(), "gt06.alternative", false, true);
+
+ switch (command.getType()) {
+ case Command.TYPE_ENGINE_STOP:
+ return encodeContent(command.getDeviceId(), alternative ? "DYD,123456#" : "Relay,1#");
+ case Command.TYPE_ENGINE_RESUME:
+ return encodeContent(command.getDeviceId(), alternative ? "HFYD,123456#" : "Relay,0#");
+ case Command.TYPE_CUSTOM:
+ return encodeContent(command.getDeviceId(), command.getString(Command.KEY_DATA));
+ default:
+ return null;
+ }
+ }
+
+}