xesam is irrelevant
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Jean-Francois Dockes
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1 changed files with 0 additions and 231 deletions
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#!/usr/bin/env python
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"""
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Recoll implementation of a xesam server.
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Based on the example in the xesam-tools package by:
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Mikkel Kamstrup Erlandsen <mikkel.kamstrup@gmail.com>
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Run it like
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xesam-recoll-service
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And launch a search on it via
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xesam-tool search hello
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"""
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# Sets up path to uninstalled xesam module
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import demo
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import xesam
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import xesam.query
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import xesam.server
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import gobject
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import sys
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import datetime
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import recoll
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def timestampToIso8601(ts):
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return datetime.datetime.fromtimestamp(long(ts)).isoformat()
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class RecollServer (xesam.server.Searcher):
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"""
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"""
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def __init__ (self):
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h_fact = xesam.server.HandleFactory ()
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fact = xesam.server.ClientFactory (self, h_fact,
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RecollSession, RecollSearch)
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xesam.server.Searcher.__init__ (self, h_fact, fact)
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self.set_echo_queries (True)
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self.rcldb = recoll.connect()
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def start (self):
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# Export our selves via a SearchServerStub
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xesam.server.SearchServerStub(self).start()
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def GetProperty (self, shandle, name):
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prop = xesam.server.Searcher.GetProperty(self, shandle, name)
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xesam.debug ("Got property request for '%s' on session '%s', returning %s" % (name, shandle, prop))
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return prop
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def SetProperty (self, shandle, name, value):
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val = xesam.server.Searcher.SetProperty(self, shandle, name, value)
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xesam.debug ("Set property request for '%s=%s', on session '%s', returning %s" % (name, value, shandle,val))
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return val
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class RecollSession (xesam.server.Session):
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"""
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"""
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def __init__ (self, searcher, session_handle):
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xesam.server.Session.__init__ (self, searcher, session_handle)
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self.set_property ("recoll.org", "xesam-recoll-service")
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class RecollSearch (xesam.server.Search):
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"""
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"""
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SLICE = 10
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def __init__ (self, searcher, session, search_handle, \
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query=None, xml=None) :
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# Our parent class does possible xml-to-query parsing. We end up
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# with a query
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xesam.server.Search.__init__ (self, searcher, session, search_handle, \
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query=query, xml=xml)
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self._hit_fields = session.get_property (xesam.SESSION_HIT_FIELDS)
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if self._hit_fields is None:
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xesam.error ("Got property hit.fields as None."
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" Setting default xesam:url")
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self._hit_fields = ["xesam:url"]
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xesam.debug("RecollSearch: fields:" % self._hit_fields)
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xesam.debug ("Created %s with handle %s and query:\n%s" %
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(self.__class__, self.get_handle(), self.get_query()))
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# Instantiate a recoll query
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self.rclquery = self._searcher.rcldb.query()
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# In the latest version (>0.95), primary/secondary is replaced by
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# a field list.
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sortfield = session.get_property(xesam.SESSION_SORT_PRIMARY)
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order = session.get_property(xesam.SESSION_SORT_ORDER)
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# xesam-tool does not know how to set these for now, so let's
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# TEST here
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sortfield = "contentModified"
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order = "descending"
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xesam.debug("Session sort primary %s order %s" % (sortfield, order))
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# END TEST
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if sortfield:
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self.rclquery.sortby(sortfield, order == "ascending" and 1 or 0)
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def doc_to_hit(self, doc):
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data = []
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for fld in self._hit_fields:
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# Need to handle ContentCategory and SourceCategory
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fld = fld.lower().replace("xesam:", "")
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xesam.debug("Adding data for fld %s" % (fld))
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if fld == "snippet":
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data.append(self._searcher.rcldb.makeDocAbstract(doc,
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self.rclquery))
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elif fld == "contentmodified":
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data.append(timestampToIso8601(getattr(doc, "mtime")))
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else:
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data.append(getattr(doc, fld, ""))
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return data
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def start (self):
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xesam.debug ("RecollSearch")
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if isinstance(self.get_query(), xesam.query.UserQuery):
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self.nres = self.rclquery.execute(self.get_query().get_string())
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elif isinstance(self.get_query(), xesam.query.CompositeQuery):
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self.build_search(None)
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self.nres = self.rclquery.executesd(self.searchdata)
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else:
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raise Exception ("Neither UserQuery nor composite query ??")
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hits = 0
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done = 0
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while self.rclquery.next >= 0 and self.rclquery.next < self.nres:
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doc = self.rclquery.fetchone()
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data = self.doc_to_hit(doc)
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self.add_new_hit (self._hit_fields, data)
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hits += 1
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if hits >= self.SLICE:
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break
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else:
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done = 1
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if hits > 0:
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self.emit ("hits-added", hits)
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xesam.debug ("Search '%s' emitted 'hits-added' %d" % \
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(self.get_handle(), hits))
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if done:
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self.emit ("done")
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xesam.debug ("Search '%s' emitted 'done'" % self.get_handle())
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self.stop()
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def get_hits(self, num_hits):
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xesam.debug ("RecollSearch get_hits")
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if self._stopped:
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return xesam.server.Search.get_hits(self, num_hits)
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hits = 0
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done = 0
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while self.rclquery.next >= 0 and self.rclquery.next < self.nres:
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doc = self.rclquery.fetchone()
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data = self.doc_to_hit(doc)
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self.add_new_hit (self._hit_fields, data)
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hits += 1
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if hits >= self.SLICE or hits >= num_hits:
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break
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else:
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done = 1
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if hits > 0:
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self.emit ("hits-added", hits)
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xesam.debug ("Search '%s' emitted 'hits-added' %d" % \
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(self.get_handle(), hits))
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if done:
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self.emit ("done")
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xesam.debug ("Search '%s' emitted 'done'" % self.get_handle())
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self.stop()
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return xesam.server.Search.get_hits(self, num_hits)
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# Build Recoll searchData tree out of Xesam CompositeQuery
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# This is recursive, parent is the current SearchData into which we are
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# adding clauses/subsearches.
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def build_search(self, parent = None):
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Arrete apres le hackfest parce qu'apparemment il y a de gros changements la
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dedans.
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Il manque plein de trucs, comme traiter les "names" des selectors (see
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xesam/query.py: SELECTORS, traiter les differents types de values, et leurs
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attributs (phrase, slack, ordered etc, cf xesam/query.py: StringValue
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xq = self.get_query()
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cl = xq.get_clause()
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if isinstance(cl, xesam.query.SelectorClause):
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xesam.debug ("Selector clause")
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if parent is None:
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# Top clause is a selector. Needs to have a parent
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self.searchdata = recoll.SearchData()
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parent = self.searchdata
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# Fields. If there are several we must turn this into an OR
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# combination of searches on the different fields
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nfields = length(cl.get_fields())
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if nfields > 1:
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orsearch = recoll.SearchData(type = "or")
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for fld in cl.get_fields():
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simple_selec_addclause(self, orsearch, cl, fld)
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parent.addclause(type = "sub", subSearch = orsearch)
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elif nfields == 1:
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simple_selec_addclause(self, parent, cl, cl.get_fields[0])
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else:
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simple_selec_addclause(self, parent, cl)
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elif isinstance(cl, xesam.query.CollectorClause):
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xesam.debug ("Collector clause")
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else:
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raise Exception("Non Collector or Selector Clause found")
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# Add Recoll clause for xesam selector clause, dealing with at most
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# one field.
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def simple_selec_addclause(self, parent, cl, fld = ""):
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parent.addclause(type = "and", field = fld,
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qstring = cl.get_value().get())
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if __name__ == "__main__":
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RecollServer().start()
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