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authorAnton Tananaev <anton.tananaev@gmail.com>2019-08-03 23:16:11 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-08-03 23:16:11 -0700
commitb5e9d84cfeb8d4e6a4e1133a2e0510652be1de6b (patch)
tree36f14a8a052163f2e1b0a770c65204ebc938eff0 /src/main/java/org/traccar/protocol/NavisetFrameDecoder.java
parent10da32b83608a882744212373e3ff4ff2716aadf (diff)
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Implement Naviset protocol
Diffstat (limited to 'src/main/java/org/traccar/protocol/NavisetFrameDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/NavisetFrameDecoder.java39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/NavisetFrameDecoder.java b/src/main/java/org/traccar/protocol/NavisetFrameDecoder.java
new file mode 100644
index 000000000..e5e13b305
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/NavisetFrameDecoder.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2019 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.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+import org.traccar.BaseFrameDecoder;
+import org.traccar.helper.BitUtil;
+
+public class NavisetFrameDecoder extends BaseFrameDecoder {
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
+
+ int length = 2 + BitUtil.to(buf.getUnsignedShortLE(buf.readerIndex()), 12) + 2;
+
+ if (buf.readableBytes() >= length) {
+ return buf.readRetainedSlice(length);
+ }
+
+ return null;
+ }
+
+}