[Zope-Checkins] CVS: Zope2 - ZCatalogIndexes.py:1.1.2.1

andreas@digicool.com andreas@digicool.com
Wed, 9 May 2001 10:08:27 -0400 (EDT)


Update of /cvs-repository/Zope2/lib/python/Products/ZCatalog
In directory korak:/tmp/cvs-serv11255

Added Files:
      Tag: ajung-dropin-registry
	ZCatalogIndexes.py 
Log Message:




--- Added File ZCatalogIndexes.py in package Zope2 ---
##############################################################################
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##############################################################################

from  Globals import DTMLFile
import Globals
from OFS.Folder import Folder
from OFS.FindSupport import FindSupport
from OFS.History import Historical
from OFS.SimpleItem import SimpleItem
from OFS.ObjectManager import ObjectManager

import string, os, sys, time

from Acquisition import Implicit
from Persistence import Persistent
from zLOG import LOG, ERROR

from SearchIndex.PluggableIndex import PluggableIndexInterface

_marker = []

class ZCatalogIndexes (Folder, Persistent, Implicit):
    """A mapping object, responding to getattr requests by looking up
    the requested indexes in an object manager."""

    # Bleah
    __supports_pluggable_indexes__ = 1

    # The interfaces we want to show up in our object manager
    _product_interfaces = (PluggableIndexInterface, )

    meta_type="ZCatalogIndex"
    #icon="misc_/ZCatalog/ZCIndex.gif"

    manage_options = (
        ObjectManager.manage_options +
        Historical.manage_options +
        SimpleItem.manage_options
    )

    manage_main = DTMLFile('dtml/manageIndex',globals())


    __ac_permissions__ = (

        ('Manage ZCatalogIndex Entries',
            ['manage_foobar',],

            ['Manager']
        ),

        ('Search ZCatalogIndex',
            ['searchResults', '__call__', 'all_meta_types',
             'valid_roles', 'getobject'],

            ['Anonymous', 'Manager']
        )
    )

    def __init__(self, name="Indexes", vocabulary=None):
        self.id = name
        self._indexes = {}
        self._vocab_id = vocabulary

    #
    # Dictionary methods; they pretend the object manager is a dictionary
    # 

    def __len__(self):
        print "ZCatalogIndexes: __len__"
        return len(self._indexes)

    def __getitem__(self, name): 
        print "ZCatalogIndexes: __getitem__(%s)" % (name)
        if self._indexes.has_key(name): return self._indexes[name]
        if hasattr(self,name): return getattr(self, name)
        raise KeyError,"%s not in ZCatalogIndexes" % name

    def __setitem__(self, name, value):
        print "ZCatalogIndexes: __setitem__(%s, %s)" % (name, value)
        self._indexes[name] = value
        self._p_changed = 1

    def __delitem__(self, name):
        print "ZCatalogIndexes: __delitem__(%s)" % name
        del self._indexes[name]
        self._p_changed = 1

    def keys(self):
        print "ZCatalogIndexes: keys()"
        return self._indexes.keys()

    def values(self):
        print "ZCatalogIndexes: values()"
        return self._indexes.values()

    def items(self):
        print "ZCatalogIndexes: items()"
        return self._indexes.items()

    def has_key(self, name):
        print "ZCatalogIndexes: has_key(%s)" % name
        return self._indexes.has_key(name)

    def get(self, name, default=_marker):
        print "ZCatalogIndexes: get(%s,%s)" % (name, default)
        if default is _marker: return self._indexes.get(name)
        return self._indexes.get(name, default)

    def clear(self):
        print "ZCatalogIndexes: clear()"
        raise NotImplementedError, "clear is not meaningful on a ZCatalogIndex"

    def copy(self):
        print "ZCatalogIndexes: copy()"
        raise NotImplementedError, "copy is not meaningful on a ZCatalogIndex"

    def update(self, list):
        print "ZCatalogIndexes: update(%s)" % list
        raise NotImplementedError, "update is not meaningful on a ZCatalogIndex"

    #
    # Catalog methods 
    #

    def addIndex(self, caller, name, type):
        print "Add index %s, type %s" % (name, type)

        # Convert the type by finding an appropriate product which supports
        # this interface by that name.  Bleah

        products = self.all_meta_types() # It knows our desired interfaces

        p = None

        for prod in products:
            if prod['name'] == type: 
                p = prod
                break

        if p is None:
            raise ValueError, "Index of type %s not found" % type

        base = p['instance']

        if base is None:
            raise ValueError, "Index type %s does not support addIndex" % type

        index = base(name, caller)

        self[name] = index

    #
    # Object Manager methods
    #

    # base accessors loop back through our dictionary interface
    def _setOb(self, id, object): self[id] = object
    def _delOb(self, id): del self[id]
    def _getOb(self, id, default=_marker): 
        if default is _marker:  return self.get(id)
        return self.get(id, default)

    def objectIds(self, spec=None):
        print "ZCatalogIndexes: objectIds(%s)" % spec
        if spec is not None:
            if type(spec) == type('s'):
                spec = [spec]
            set = []

            for ob in self.keys():
                o = self.get(ob)
                if hasattr(o, 'meta_type') and getattr(o,'meta_type') in spec:
                    set.append(ob)

            return set

        return self.keys()

    def manage_addIndex(self, id, type, REQUEST=None):
        id = str(id)
        type = str(type)

        print "manage_addIndex: self is %s" % self

        # addIndex wants to have the base catalog available to it
        # We'll pass self for now since there isnt a better sol'n
        self.addIndex(self, id, type)
        if REQUEST is not None:
            return self.manage_main(self, REQUEST)

    #
    # traversal
    #

    def __bobo_traverse__(self, REQUEST, name):
        print "__bobo_traverse__ %s" % name

        o = self.get(name, None)
        if o is not None: return o.__of__(self)

        return getattr(self, name)