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-rw-r--r--src/org/traccar/protocol/GranitFrameDecoder.java36
-rw-r--r--test/org/traccar/protocol/GranitFrameDecoderTest.java48
-rw-r--r--test/org/traccar/protocol/GranitProtocolDecoderTest.java18
3 files changed, 66 insertions, 36 deletions
diff --git a/src/org/traccar/protocol/GranitFrameDecoder.java b/src/org/traccar/protocol/GranitFrameDecoder.java
index b0581c96c..5f1297c6d 100644
--- a/src/org/traccar/protocol/GranitFrameDecoder.java
+++ b/src/org/traccar/protocol/GranitFrameDecoder.java
@@ -15,10 +15,7 @@
*/
package org.traccar.protocol;
-import java.nio.charset.StandardCharsets;
-
import org.jboss.netty.buffer.ChannelBuffer;
-import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.codec.frame.FrameDecoder;
@@ -26,39 +23,24 @@ import org.traccar.helper.StringFinder;
public class GranitFrameDecoder extends FrameDecoder {
- private static final int HEADER_LENGTH = 6;
- private static final int CHECKSUM_LENGTH = 3;
- private static final int SHORT_LENGTH = 2;
-
@Override
protected Object decode(
ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
- if (buf.readableBytes() > HEADER_LENGTH + SHORT_LENGTH) {
- ChannelBuffer frame = ChannelBuffers.dynamicBuffer();
- buf.getBytes(buf.readerIndex(), frame, HEADER_LENGTH);
- String headerString = frame.toString(StandardCharsets.US_ASCII);
- if (headerString.equals("+RRCB~") || headerString.equals("+DDAT~")) {
- int length = buf.getUnsignedShort(buf.readerIndex() + HEADER_LENGTH);
- if (buf.readableBytes() >= HEADER_LENGTH + SHORT_LENGTH + length + CHECKSUM_LENGTH) {
- frame = buf.readBytes(HEADER_LENGTH + SHORT_LENGTH + length + CHECKSUM_LENGTH);
- if (buf.readableBytes() > 2) {
- buf.skipBytes(2); //skip \r\n
- }
- return frame;
- } else {
- return null; //damaged packet
+ int indexEnd = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("\r\n"));
+ if (indexEnd != -1) {
+ int indexTilde = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("~"));
+ if (indexTilde != -1 && indexTilde < indexEnd) {
+ int length = buf.getUnsignedShort(indexTilde + 1);
+ indexEnd = buf.indexOf(indexTilde + 2 + length, buf.writerIndex(), new StringFinder("\r\n"));
+ if (indexEnd == -1) {
+ return null;
}
}
- }
-
- int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("\r\n"));
- if (index != -1) {
- ChannelBuffer frame = buf.readBytes(index - buf.readerIndex());
+ ChannelBuffer frame = buf.readBytes(indexEnd - buf.readerIndex());
buf.skipBytes(2);
return frame;
}
-
return null;
}
diff --git a/test/org/traccar/protocol/GranitFrameDecoderTest.java b/test/org/traccar/protocol/GranitFrameDecoderTest.java
new file mode 100644
index 000000000..cf84c2026
--- /dev/null
+++ b/test/org/traccar/protocol/GranitFrameDecoderTest.java
@@ -0,0 +1,48 @@
+package org.traccar.protocol;
+
+import java.nio.ByteOrder;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.traccar.ProtocolTest;
+
+public class GranitFrameDecoderTest extends ProtocolTest {
+
+ @Test
+ public void testDecode() throws Exception {
+
+ GranitFrameDecoder decoder = new GranitFrameDecoder();
+
+ Assert.assertEquals(
+ binary("2b525243427e1a003e2934757c57b8b03c38d279b4e61e9bd7006b000000001c00002a4533"),
+ decoder.decode(null, null, binary(ByteOrder.LITTLE_ENDIAN, "2b525243427e1a003e2934757c57b8b03c38d279b4e61e9bd7006b000000001c00002a45330d0a")));
+
+ Assert.assertEquals(
+ binary("2b525243427e1a000d0a34757c57b8b03c38d279b4e61e9bd7006b000000001c00002a4533"),
+ decoder.decode(null, null, binary(ByteOrder.LITTLE_ENDIAN, "2b525243427e1a000d0a34757c57b8b03c38d279b4e61e9bd7006b000000001c00002a45330d0a")));
+
+ Assert.assertEquals(
+ binary("4f4b"),
+ decoder.decode(null, null, binary(ByteOrder.LITTLE_ENDIAN, "4f4b0d0a2b525243427e1a000d0a34757c57b8b03c38d279b4e61e9bd7006b000000001c00002a45330d0a")));
+
+ Assert.assertEquals(
+ binary("2b444441547e84003e290401d01690737c57b8903c383c7fa0e5081b64006b000000001c0000b8803c388e7fe7e5102197006c000000001c0000b8813c38ad7f02e6042035006c000000001d0000b8813c38bf7f13e6001d1e006c000000001d0000b8813c38bf7f13e6001d00006c000000001d0000b8903c38977f34e6091065006c000000001e000014002a3932"),
+ decoder.decode(null, null, binary(ByteOrder.LITTLE_ENDIAN,
+ "2b444441547e84003e290401d01690737c57b8903c383c7fa0e5081b64006b000000001c0000b8803c388e7fe7e5102197006c000000001c0000b8813c38ad7f02e6042035006c000000001d0000b8813c38bf7f13e6001d1e006c000000001d0000b8813c38bf7f13e6001d00006c000000001d0000b8903c38977f34e6091065006c000000001e000014002a39320d0a")));
+
+ Assert.assertEquals(
+ binary("2b444441547e84003e290401d41680747c57f8a03c38987f50e6005300006c000000001c0000f8b03c38987f50e6005300006c000000001c0000fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe14002a4346"),
+ decoder.decode(null, null, binary(ByteOrder.LITTLE_ENDIAN,
+ "2b444441547e84003e290401d41680747c57f8a03c38987f50e6005300006c000000001c0000f8b03c38987f50e6005300006c000000001c0000fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe14002a43460d0a")));
+
+ Assert.assertEquals(
+ binary("2b49444e543a204e6176696761746f722e30347820204669726d776172652076657273696f6e202030373132474c4e202a3231"),
+ decoder.decode(null, null, binary(ByteOrder.LITTLE_ENDIAN, "2b49444e543a204e6176696761746f722e30347820204669726d776172652076657273696f6e202030373132474c4e202a32310d0a")));
+
+ Assert.assertEquals(
+ binary("4552524f522057524f4e4720434845434b53554d5f31"),
+ decoder.decode(null, null, binary(ByteOrder.LITTLE_ENDIAN, "4552524f522057524f4e4720434845434b53554d5f310d0a")));
+
+ }
+
+}
diff --git a/test/org/traccar/protocol/GranitProtocolDecoderTest.java b/test/org/traccar/protocol/GranitProtocolDecoderTest.java
index 9f1f07bf7..1e6a5e611 100644
--- a/test/org/traccar/protocol/GranitProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/GranitProtocolDecoderTest.java
@@ -13,21 +13,21 @@ public class GranitProtocolDecoderTest extends ProtocolTest {
GranitProtocolDecoder decoder = new GranitProtocolDecoder(new GranitProtocol());
verifyPosition(decoder, binary(ByteOrder.LITTLE_ENDIAN,
- "2b525243427e1a003e2934757c57b8b03c38d279b4e61e9bd7006b000000001c00002a45330d0a"));
-
+ "2b525243427e1a003e2934757c57b8b03c38d279b4e61e9bd7006b000000001c00002a4533"));
+
verifyPositions(decoder, binary(ByteOrder.LITTLE_ENDIAN,
- "2b444441547e84003e290401d01690737c57b8903c383c7fa0e5081b64006b000000001c0000b8803c388e7fe7e5102197006c000000001c0000b8813c38ad7f02e6042035006c000000001d0000b8813c38bf7f13e6001d1e006c000000001d0000b8813c38bf7f13e6001d00006c000000001d0000b8903c38977f34e6091065006c000000001e000014002a39320d0a"));
-
+ "2b444441547e84003e290401d01690737c57b8903c383c7fa0e5081b64006b000000001c0000b8803c388e7fe7e5102197006c000000001c0000b8813c38ad7f02e6042035006c000000001d0000b8813c38bf7f13e6001d1e006c000000001d0000b8813c38bf7f13e6001d00006c000000001d0000b8903c38977f34e6091065006c000000001e000014002a3932"));
+
verifyPositions(decoder, binary(ByteOrder.LITTLE_ENDIAN,
- "2b444441547e84003e290401d41680747c57f8a03c38987f50e6005300006c000000001c0000f8b03c38987f50e6005300006c000000001c0000fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe14002a43460d0a"));
-
+ "2b444441547e84003e290401d41680747c57f8a03c38987f50e6005300006c000000001c0000f8b03c38987f50e6005300006c000000001c0000fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe14002a4346"));
+
//+IDNT: Navigator.04x Firmware version 0712GLN *21
verifyAttributes(decoder, binary(ByteOrder.LITTLE_ENDIAN,
- "2b49444e543a204e6176696761746f722e30347820204669726d776172652076657273696f6e202030373132474c4e202a32310d0a"));
-
+ "2b49444e543a204e6176696761746f722e30347820204669726d776172652076657273696f6e202030373132474c4e202a3231"));
+
//ERROR WRONG CHECKSUM_1
verifyAttributes(decoder, binary(ByteOrder.LITTLE_ENDIAN,
- "4552524f522057524f4e4720434845434b53554d5f310d0a"));
+ "4552524f522057524f4e4720434845434b53554d5f31"));
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 12:07:21 +0000