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authorAnton Tananaev <anton.tananaev@gmail.com>2019-09-30 23:34:10 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-09-30 23:34:10 -0700
commit14f5711c4966f8fa38a49a5c9b62c7148ece06de (patch)
tree4ec985a8d1fa05969b4c2a08a85ac029d89dde8b /src/main/java/org/traccar/protocol/Pt215FrameDecoder.java
parent95d9122a4f5ac22ea25d2eb555beab11fd2c3408 (diff)
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Add PT215 frame decoder
Diffstat (limited to 'src/main/java/org/traccar/protocol/Pt215FrameDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/Pt215FrameDecoder.java55
1 files changed, 55 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/Pt215FrameDecoder.java b/src/main/java/org/traccar/protocol/Pt215FrameDecoder.java
new file mode 100644
index 000000000..0b3bae914
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Pt215FrameDecoder.java
@@ -0,0 +1,55 @@
+/*
+ * 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;
+
+public class Pt215FrameDecoder extends BaseFrameDecoder {
+
+ private ByteBuf decodeFrame(ByteBuf buf, int length) {
+ if (buf.readableBytes() >= length) {
+ return buf.readRetainedSlice(length);
+ }
+ return null;
+ }
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
+
+ if (buf.readableBytes() < 5) {
+ return null;
+ }
+
+ int type = buf.getUnsignedByte(buf.readerIndex() + 2 + 1);
+ switch (type) {
+ case Pt215ProtocolDecoder.MSG_LOGIN:
+ return decodeFrame(buf, 15);
+ case Pt215ProtocolDecoder.MSG_GPS_REALTIME:
+ case Pt215ProtocolDecoder.MSG_GPS_OFFLINE:
+ return decodeFrame(buf, 27);
+ case Pt215ProtocolDecoder.MSG_STATUS:
+ return decodeFrame(buf, 11);
+ default:
+ return null;
+
+ }
+ }
+
+}