Unidata / python-awips

awips/gfe/IFPClient.py

#
# Provides a Python-based interface for executing GFE requests.
#
#
#     SOFTWARE HISTORY
#
#    Date            Ticket#       Engineer       Description
#    ------------    ----------    -----------    --------------------------
#    07/26/12                      dgilling       Initial Creation.
#
#

from awips import ThriftClient
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.db.objects import DatabaseID
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.db.objects import ParmID
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.request import CommitGridsRequest
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.request import GetGridInventoryRequest
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.request import GetParmListRequest
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.request import GetSelectTimeRangeRequest
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.server.request import CommitGridRequest
from dynamicserialize.dstypes.com.raytheon.uf.common.message import WsId
from dynamicserialize.dstypes.com.raytheon.uf.common.site.requests import GetActiveSitesRequest
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.server.message import ServerResponse


class IFPClient(object):

This code seems to be duplicated in your project.

    def __init__(self, host, port, user, site=None, progName=None):
        self.__thrift = ThriftClient.ThriftClient(host, port)
        self.__wsId = WsId(userName=user, progName=progName)
        # retrieve default site
        if site is None:
            sr = self.getSiteID()
            if len(sr.getPayload()) > 0:
                site = sr.getPayload()[0]
        self.__siteId = site

    def commitGrid(self, request):
        if isinstance(request, CommitGridRequest):
            return self.__commitGrid([request])
        elif self.__isHomogenousIterable(request, CommitGridRequest):
            return self.__commitGrid([cgr for cgr in request])
        raise TypeError("Invalid type: " + str(type(request)) +
                        " for commitGrid(). Only accepts CommitGridRequest or lists of CommitGridRequest.")

    def __commitGrid(self, requests):
        ssr = ServerResponse()
        request = CommitGridsRequest()
        request.setCommits(requests)
        sr = self.__makeRequest(request)
        ssr.setMessages(sr.getMessages())
        return ssr

    def getParmList(self, pid):
        argType = type(pid)
        if argType is DatabaseID:
            return self.__getParmList([pid])
        elif self.__isHomogenousIterable(pid, DatabaseID):
            return self.__getParmList([dbid for dbid in pid])
        raise TypeError("Invalid type: " + str(argType) +
                        " for getParmList(). Only accepts DatabaseID or lists of DatabaseID.")

    def __getParmList(self, ids):
        ssr = ServerResponse()
        request = GetParmListRequest()
        request.setDbIds(ids)
        sr = self.__makeRequest(request)
        ssr.setMessages(sr.getMessages())
        parmlist = sr.getPayload() if sr.getPayload() is not None else []
        ssr.setPayload(parmlist)
        return ssr

    def __isHomogenousIterable(self, iterable, classType):
        try:
            iterator = iter(iterable)
            for item in iterator:
                if not isinstance(item, classType):
                    return False
        except TypeError:
            return False
        return True

    def getGridInventory(self, parmID):
        if isinstance(parmID, ParmID):
            sr = self.__getGridInventory([parmID])
            inventoryList = []
            try:
                inventoryList = sr.getPayload()[parmID]
            except KeyError:
                # no-op, we've already default the TimeRange list to empty
                pass
            sr.setPayload(inventoryList)
            return sr
        elif self.__isHomogenousIterable(parmID, ParmID):
            return self.__getGridInventory([pid for pid in parmID])
        raise TypeError("Invalid type: " + str(type(parmID)) +
                        " specified to getGridInventory(). Accepts ParmID or lists of ParmID.")

    def __getGridInventory(self, parmIDs):
        ssr = ServerResponse()
        request = GetGridInventoryRequest()
        request.setParmIds(parmIDs)
        sr = self.__makeRequest(request)
        ssr.setMessages(sr.getMessages())
        trs = sr.getPayload() if sr.getPayload() is not None else {}
        ssr.setPayload(trs)
        return ssr

    def getSelectTR(self, name):
        request = GetSelectTimeRangeRequest()
        request.setName(name)
        sr = self.__makeRequest(request)
        ssr = ServerResponse()
        ssr.setMessages(sr.getMessages())
        ssr.setPayload(sr.getPayload())
        return ssr

    def getSiteID(self):
        ssr = ServerResponse()
        request = GetActiveSitesRequest()
        sr = self.__makeRequest(request)
        ssr.setMessages(sr.getMessages())
        ids = sr.getPayload() if sr.getPayload() is not None else []
        sr.setPayload(ids)
        return sr

    def __makeRequest(self, request):
        try:
            request.setSiteID(self.__siteId)
        except AttributeError:
            pass
        try:
            request.setWorkstationID(self.__wsId)
        except AttributeError:
            pass

        sr = ServerResponse()
        response = None
        try:
            response = self.__thrift.sendRequest(request)
        except ThriftClient.ThriftRequestException as e:
            sr.setMessages([str(e)])
        try:
            sr.setPayload(response.getPayload())
        except AttributeError:
            sr.setPayload(response)
        try:
            sr.setMessages(response.getMessages())
        except AttributeError:
            # not a server response, nothing else to do
            pass

        return sr