95 lines
2.3 KiB
Python
95 lines
2.3 KiB
Python
#!/usr/bin/env python
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# Copyright (c) 2016 Hewlett Packard Enterprise Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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class DepCheck(object):
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"""Dependency checks."""
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def __init__(self, dep_check):
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self._dep_check = dep_check
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def __call__(self, node):
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res = True
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for dep in node.dependencies:
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res = res and self._dep_check(dep)
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return res and len(node.dependencies) > 0
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class AnyDepCheck(object):
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"""Dependency checks."""
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def __init__(self, dep_check):
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self._dep_check = dep_check
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def __call__(self, node):
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for dep in node.dependencies:
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if self._dep_check(dep):
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return True
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return False
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class TrueCheck(object):
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"""This dep check always pass."""
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def __call__(self, *_):
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return True
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class EqCheck(object):
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"""Check that the node has the appropriate state."""
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def __init__(self, state):
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self._state = state
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def __call__(self, node):
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return node.state == self._state
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class NeqCheck(object):
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"""Check that the node has the appropriate state."""
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def __init__(self, state):
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self._state = state
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def __call__(self, node):
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return node.state != self._state
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class OrCheck(object):
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"""Combine two check in an or expression."""
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def __init__(self, c1, c2, c3=None):
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self._c1 = c1
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self._c2 = c2
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self._c3 = c3
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def __call__(self, node):
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if self._c3 is None:
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return self._c1(node) or self._c2(node)
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else:
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return self._c1(node) or self._c2(node) or self._c3(node)
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class AndCheck(object):
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"""Combine two check in an or expression."""
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def __init__(self, c1, c2):
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self._c1 = c1
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self._c2 = c2
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def __call__(self, node):
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return self._c1(node) and self._c2(node)
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