svgui/pyjs/jsonrpc/jsonrpc.py
author Edouard Tisserant
Thu, 20 Aug 2020 13:56:21 +0200
branchsvghmi
changeset 3031 440d74319a74
parent 1881 091005ec69c4
permissions -rw-r--r--
SVGHMI: Refactor the way JsonTable generate javascript code to access json data. Now support multiple assignments, used in the case of text to change both content and style on the same element.
from __future__ import absolute_import
import sys
import gluon.contrib.simplejson as simplejson


class JSONRPCServiceBase(object):

    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 Exception:
                etype, eval, _etb = sys.exc_info()
                return self.error(id, 100, 'Exception %s: %s' % (etype, eval))
            except BaseException:
                etype, eval, _etb = sys.exc_info()
                return self.error(id, 100, '%s: %s' % (etype.__name__, eval))
        else:
            return self.error(id, 100, 'method "%s" does not exist' % method)

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