5a1e67fe5c
Added rpcserver.py in /agent/control which is intended to be listening on connections and hands over metadata and resource objects to a controller. git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2711 fd906abe-77d9-0310-91a1-e0d9ade77398
96 lines
3.2 KiB
Python
96 lines
3.2 KiB
Python
#
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# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Transferring information to or requesting information from a remote
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cybertools.agent instance by transferring files to the remote system
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and sending requests to a corresponding remote controller.
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$Id$
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"""
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from zope.interface import implements
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from cybertools.agent.core.agent import QueueableAgent
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from cybertools.agent.interfaces import ITransporter
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from cybertools.agent.transport.rpcclient import RPCClient
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from cybertools.agent.crawl.base import Metadata
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from cybertools.agent.crawl.mail import MailResource
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from cybertools.agent.crawl.filesystem import FileResource
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class Transporter(QueueableAgent):
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implements(ITransporter)
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serverURL = ''
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method = ''
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machineName = ''
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userName = ''
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password = ''
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xmlrpcClient = ''
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resource = None
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def __init__(self, master, params={}):
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super(Transporter, self).__init__(master)
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if params.has_key(serverURL):
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self.xmlrpcClient = RPCClient(self.serverURL)
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def transfer(self, resource):
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""" Transfer the resource (an object providing IResource)
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to the server and return a Deferred.
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"""
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deferred = self.xmlrpcClient.transferResource(resource)
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# concept test method
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# sftp transfer here with callback to self.cb_sendMetadata
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deferred.addCallback(self.cb_sendMetadata)
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deferred.addErrback(self.cb_errorHandler)
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def cb_sendMetadata(self, serverResponse=''):
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"""
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After the resource object has been sent successfully to the
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RPCServer this method is invoked by a callback from the
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transfer method and is sending the according metadata of the resource.
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"""
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# maybe react here to a special server response like
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# e.g. delay because of server being in heavy load condition
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deferred = self.xmlrpcClient.transferMetadata(self.resource.metadata)
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deferred.addCallback(self.cb_transferDone)
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deferred.addErrback(self.cb_errorHandler)
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def cb_errorHandler(self, errorInfo):
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"""
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This is a callback error Handler
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"""
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print errorInfo
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self.xmlrpcClient.close()
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def cb_transferDone(self, successMessage=''):
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"""
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This callback method is called when resource and metadata
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have been transferred successfully.
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"""
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pass
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# def process(self):
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# return self.collect()
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# def collect(self, filter=None):
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# d = defer.succeed([])
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# return d
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