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authorAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
commit59416923dcb3a756eaf532cc4259f2f6625c0762 (patch)
tree9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/main/java/org/traccar/protocol/CastelProtocolEncoder.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
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Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/CastelProtocolEncoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/CastelProtocolEncoder.java70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/CastelProtocolEncoder.java b/src/main/java/org/traccar/protocol/CastelProtocolEncoder.java
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+++ b/src/main/java/org/traccar/protocol/CastelProtocolEncoder.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 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 CastelProtocolEncoder extends BaseProtocolEncoder {
+
+ private ByteBuf encodeContent(long deviceId, short type, ByteBuf content) {
+
+ ByteBuf buf = Unpooled.buffer(0);
+ String uniqueId = Context.getIdentityManager().getById(deviceId).getUniqueId();
+
+ buf.writeByte('@');
+ buf.writeByte('@');
+
+ buf.writeShortLE(2 + 2 + 1 + 20 + 2 + content.readableBytes() + 2 + 2); // length
+
+ buf.writeByte(1); // protocol version
+
+ buf.writeBytes(uniqueId.getBytes(StandardCharsets.US_ASCII));
+ buf.writeZero(20 - uniqueId.length());
+
+ buf.writeShort(type);
+ buf.writeBytes(content);
+
+ buf.writeShortLE(Checksum.crc16(Checksum.CRC16_X25, buf.nioBuffer()));
+
+ buf.writeByte('\r');
+ buf.writeByte('\n');
+
+ return buf;
+ }
+
+ @Override
+ protected Object encodeCommand(Command command) {
+ ByteBuf content = Unpooled.buffer(0);
+ switch (command.getType()) {
+ case Command.TYPE_ENGINE_STOP:
+ content.writeByte(1);
+ return encodeContent(command.getDeviceId(), CastelProtocolDecoder.MSG_CC_PETROL_CONTROL, content);
+ case Command.TYPE_ENGINE_RESUME:
+ content.writeByte(0);
+ return encodeContent(command.getDeviceId(), CastelProtocolDecoder.MSG_CC_PETROL_CONTROL, content);
+ default:
+ return null;
+ }
+ }
+
+}