evj2csv.py

#!/usr/bin/python

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# convert json event format to csv
from __future__ import print_function
import sys
import json

headers = "EventCode,UMask,EventName,Description,Counter,OverFlow,MSRIndex,MSRValue,PreciseEvent,Invert,AnyThread,EdgeDetect,CounterMask".split(",")

hdrmap = {
    "Description": "PublicDescription",
    "OverFlow": "SampleAfterValue",
    "PreciseEvent": "PEBS",
}

alt = {
    "PublicDescription": "BriefDescription",
}

def translate(j, x):
    if x in j:
        return j[x]
    v = j[hdrmap[x]]
    if v == "null":
        v = j[alt[hdrmap[x]]]
    return v

def oline(j):
    return ('"' +
            u'","'.join(map(lambda x: translate(j, x).replace('"', ''), headers)).encode('utf-8') +
            '"')

header = False
for fn in sys.argv[1:]:
    f = open(fn, "r")
    jo = json.load(f)
    for j in jo:
        if not header:
            print(",".join(headers))
            header = True
        print(j['EventName'], file=sys.stderr)
        if j['PublicDescription'].find("This is a non-precise version") >= 0:
            j['PublicDescription'] = 'null'
        if j['PublicDescription'].find("This is a precise version") < 0:
            print(oline(j))
        if j['PEBS'] == "1":
            j['EventName'] += "_PS"
            j['BriefDescription'] += " (Uses PEBS)"
            print(oline(j))