Thingmagic Mercury API v1.23.0 Manuel d'utilisateur télécharger pdf (Page 63)

Debug Logging

Level 2 API 63

Debug Logging

TransportListener Interface

The TransportListener interface provides a method of snooping on raw, transport-layer

packets sent to and received from any device. The class that is interested in observing

raw message packets implements this interface, and the object created with that class is

registered with:

void addTransportListener(TransportListener listener)

Once registered data transmitted or receive will cause the message() method to be

invoked.

void message(boolean tx, byte[] data, int timeout)

When data is sent to the device, message() is invoked with tx set to true.

When data is received from the device, message() is invoked with tx set to false.

The timeout originally specified by the caller is also returned.

The data field includes every byte that is sent over the connection, including framing

bytes and CRCs.

To remove a TransportListener from an object so that it no longer is notified of message

packets call removeTransportListener():

void removeTransportListener(Reader.TransportListener listener)

Note

For most users raw, transport layer packet information will not be very useful

but can be a critical tool for ThingMagic Support to debug a problem. To

facilitate debugging it is recommended that TransportListener logging be

available in all applications.

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Thingmagic Mercury API v1.23.0 Manuel d'utilisateur Page 63