svgui/pyjs/jsonrpc/jsonrpc.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Thu, 28 Apr 2016 12:58:58 +0300
changeset 1506 b9b8978dbc9d
parent 728 e0424e96e3fd
child 1730 64d8f52bc8c8
permissions -rw-r--r--
Fix error about missing attribute 'timeout' that happens sometimes during compilation

The fix [1476:49f1763a5613] of the problem with following trace was wrong.
Traceback (most recent call last):
File "./Beremiz.py", line 1229, in run_with_except_hook
run_old(*args, **kw)
File
"/home/developer/WorkData/PLC/beremiz/beremiz/util/ProcessLogger.py",
line 68, in run
self.endcallback(self.Proc.pid, err)
File
"/home/developer/WorkData/PLC/beremiz/beremiz/util/ProcessLogger.py",
line 169, in finish
if self.timeout: self.timeout.cancel()
AttributeError: ProcessLogger instance has no attribute 'timeout'
The problem was that compilation process was finished before the timeout attribute is set.
Now timeout is set before launcing of compilation process.
import gluon.contrib.simplejson as simplejson
import types
import sys

class JSONRPCServiceBase:

    def __init__(self):
        self.methods={}

    def response(self, id, result):
        return simplejson.dumps({'version': '1.1', 'id':id,
                                 'result':result, 'error':None})
    def error(self, id, code, message):
        return simplejson.dumps({'id': id,
                                 'version': '1.1',
                                 'error': {'name': 'JSONRPCError',
                                           'code': code,
                                           'message': message
                                           }
                                     })

    def add_method(self, name, method):
        self.methods[name] = method

    def process(self, data):
        data = simplejson.loads(data)
        id, method, params = data["id"], data["method"], data["params"]
        if method in self.methods:
            try:
                result =self.methods[method](*params)
                return self.response(id, result)
            except BaseException:
                etype, eval, etb = sys.exc_info()
                return self.error(id, 100, '%s: %s' %(etype.__name__, eval))
            except:
                etype, eval, etb = sys.exc_info()
                return self.error(id, 100, 'Exception %s: %s' %(etype, eval))
        else:
            return self.error(id, 100, 'method "%s" does not exist' % method)

    def listmethods(self):
        return self.methods.keys()