json_dump module - README

Description

json_dump takes data from TRAP interface in JSON format and dumps it into stdout or file. It works as a "logger" for JSON interfaces.

Interfaces

• Input: 1
• Output: 0

Parameters

Common TRAP parameters

• -h [trap,1] Print help message for this module / for libtrap specific parameters.
• -i IFC_SPEC Specification of interface types and their parameters.
• -v Be verbose.
• -vv Be more verbose.
• -vvv Be even more verbose.

Module specific parameters

• -w <filename> Write dump to FILE instead of stdout (overwrite file).
• -a <filename> Write dump to FILE instead of stdout (append to file).
• -I --indent <number> Pretty-print JSON with indentation set to N spaces. Note that such format can't be read by json_replay module.
• --noflush Disable automatic flush of output buffer after writing a record (may improve performance).

Usage Examples

$ json_dump.py -i u:trap_in_ifc #write json to stdout
$ json_dump.py -i u:trap_in_ifc -w dest_file #write to file - overwrite mode
$ json_dump.py -i u:trap_in_ifc -a dest_file --noflush #write to file - append mode, disable autoflush