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# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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# All rights reserved.
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# This component and the accompanying materials are made available
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# under the terms of "Eclipse Public License v1.0"
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# which accompanies this distribution, and is available
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# at the URL "http://www.eclipse.org/legal/epl-v10.html".
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#
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# Initial Contributors:
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# Nokia Corporation - initial contribution.
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#
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# Contributors:
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#
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# Description:
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#
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'''
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Ruleml eval extension to check is passed ref changed on given layer(range).
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'''
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from cone.public import api
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import logging
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logger = logging.getLogger('cone.ruleplugin.evals.layer_utils')
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def give_changed_layers(feat):
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"""
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Returns a list of booleans where True means that feature is changed in that layer. Index is
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same than in configuration root's get_configuration_by_index().
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"""
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logger.debug('Checking feature: %s' % feat.fqr)
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root_conf = feat.get_root_configuration()
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nro_of_layers = len(root_conf.list_configurations())
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result = [False] * nro_of_layers
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for i in range(0, nro_of_layers):
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conf = root_conf.get_configuration_by_index(i)
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logger.debug("Traversing data from configuration: %s" % conf.get_path())
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datas = conf._traverse(type=api.Data, filters=[lambda d: d.fqr==feat.fqr])
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for data in datas:
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try:
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if data.get_value() != None:
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logger.debug("Feature '%s' is changed in layer %s with data '%s'" % (feat.fqr, i, data.get_value()))
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result[i] = True
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except Exception, e:
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logger.debug("Failed to check Feature '%s' data in layer %s:", (e,i))
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if result[i] == False:
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logger.debug("Feature '%s' is not changed in layer: %s" % (feat.fqr, i))
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logger.debug("Feature '%s' is changed in layers: %s" % (feat.fqr, result))
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return result
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def changed_on_last_layer(feat):
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"""
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Returns True if feature is changed in the last layer.
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"""
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root_conf = feat.get_root_configuration()
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conf = root_conf.get_configuration_by_index(-2)#autoconfig layer is ignored
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def check(node):
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if isinstance(node, api.Data) and node.fqr == feat.fqr:
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return True
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for obj in node._objects():
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if check(obj):
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return True
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if check(conf):
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return True
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else:
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return False
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def changed_on_autoconfig_layer(feat):
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"""
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Returns True if feature is changed in the autoconfig layer.
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"""
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root_conf = feat.get_root_configuration()
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conf = root_conf.get_configuration_by_index(-1)
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def check(node):
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if isinstance(node, api.Data) and node.fqr == feat.fqr:
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return True
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for obj in node._objects():
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if check(obj):
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return True
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if check(conf):
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return True
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else:
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return False
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def changed_on_layer(feat, layer):
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"""
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Returns True if feature is changed in the given layer.
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"""
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try:
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return give_changed_layers(feat)[layer]
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except IndexError, e:
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logger.warning("Given layer is not found: %s" % (layer))
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return False
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def changed_on_layers(feat, findex, tindex):
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"""
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Returns True if feature is changed in layer of given range.
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"""
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layers = give_changed_layers(feat)
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if findex == tindex:
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return changed_on_layer(feat, findex)
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for i in range(findex, tindex):
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if i > len(layers):
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continue
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if layers != None and layers[i] != None and layers[i]:
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return True
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return False
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