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authorSrgian Danity <srgian.danity@smartdiesel.ro>2017-01-19 09:27:18 +0200
committerSrgian Danity <srgian.danity@smartdiesel.ro>2017-01-19 09:27:18 +0200
commit49c50ef9b823a5e3c726739f801bf7b406c43bb0 (patch)
treeb7acea1bfb43aecb8f25ec034b918d3399850686 /src/org/traccar/protocol
parent2bc8572b6e93cff19cf47f2cb0183594fe3cb510 (diff)
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Implemented code review suggestions
- improved variables naming - droped bool 'connectionless' and used channel implementation for execution branching - CamelCasedAbbreviationsToo - optimized use of deviceSession
Diffstat (limited to 'src/org/traccar/protocol')
-rw-r--r--src/org/traccar/protocol/TeltonikaProtocolDecoder.java41
1 files changed, 21 insertions, 20 deletions
diff --git a/src/org/traccar/protocol/TeltonikaProtocolDecoder.java b/src/org/traccar/protocol/TeltonikaProtocolDecoder.java
index a9bb4c6a0..2c5e31afb 100644
--- a/src/org/traccar/protocol/TeltonikaProtocolDecoder.java
+++ b/src/org/traccar/protocol/TeltonikaProtocolDecoder.java
@@ -39,7 +39,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
super(protocol);
}
- private void parseIdentification(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) {
+ private DeviceSession parseIdentification(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) {
int length = buf.readUnsignedShort();
String imei = buf.toString(buf.readerIndex(), length, StandardCharsets.US_ASCII);
@@ -54,6 +54,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
}
channel.write(response);
}
+ return deviceSession;
}
public static final int CODEC_GH3000 = 0x07;
@@ -212,18 +213,21 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
}
- private List<Position> parseData(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf,
- boolean connectionless, int avlOffset, short packetId) {
+ private List<Position> parseData(
+ Channel channel, SocketAddress remoteAddress, ChannelBuffer buf, int offset, int packetId, String... imei) {
List<Position> positions = new LinkedList<>();
- buf.skipBytes(avlOffset); // marker
- if (!connectionless) {
+ buf.skipBytes(offset); // marker
+
+ if (!(channel instanceof DatagramChannel)) {
buf.readUnsignedInt(); // data length
}
+
int codec = buf.readUnsignedByte();
int count = buf.readUnsignedByte();
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+
if (deviceSession == null) {
return null;
}
@@ -244,7 +248,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
}
if (channel != null) {
- if (connectionless) {
+ if (channel instanceof DatagramChannel) {
ChannelBuffer response = ChannelBuffers.directBuffer(5);
response.writeShort(3);
response.writeShort(packetId);
@@ -266,35 +270,32 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
ChannelBuffer buf = (ChannelBuffer) msg;
if (channel instanceof DatagramChannel) {
- return decodeUDP(channel, remoteAddress, buf);
+ return decodeUdp(channel, remoteAddress, buf);
} else {
- return decodeTCP(channel, remoteAddress, buf);
+ return decodeTcp(channel, remoteAddress, buf);
}
}
- protected Object decodeTCP(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) throws Exception {
+ protected Object decodeTcp(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) throws Exception {
if (buf.getUnsignedShort(0) > 0) {
parseIdentification(channel, remoteAddress, buf);
} else {
- return parseData(channel, remoteAddress, buf, false, 4, (short) 0);
+ return parseData(channel, remoteAddress, buf, 4, 0);
}
return null;
}
- protected Object decodeUDP(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) throws Exception {
- int udpPacketLength = buf.getUnsignedShort(0);
- short udpPacketId = buf.getShort(2);
- byte udpPacketType = buf.getByte(4);
+ protected Object decodeUdp(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) throws Exception {
- byte packetId = buf.getByte(5);
+ int packetId = buf.getShort(2);
int imeiLength = buf.getUnsignedShort(6);
String imei = buf.toString(8, imeiLength, StandardCharsets.US_ASCII);
- int avlDataArrOffset = 8 + imeiLength;
- int avlDataArrLength = udpPacketLength - avlDataArrOffset + 2;
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
- return parseData(channel, remoteAddress, buf, true, avlDataArrOffset, udpPacketId);
+ int offset = 8 + imeiLength;
+
+ return parseData(channel, remoteAddress, buf, offset, packetId, imei);
+
}
}