class Sample(_VSOSimpleAttr):
pass
class Quicklook(_VSOSimpleAttr):
pass
class PScale(_VSOSimpleAttr):
pass
# The walker specifies how the Attr-tree is converted to a query the
# server can handle.
walker = AttrWalker()
@walker.add_creator(ValueAttr, AttrAnd)
# pylint: disable=E0102,C0103,W0613
def _create(wlk, root, api):
""" Implementation detail. """
value = api.factory.create('QueryRequestBlock')
wlk.apply(root, api, value)
return [value]
@walker.add_applier(ValueAttr)
# pylint: disable=E0102,C0103,W0613
def _apply(wlk, root, api, queryblock):
""" Implementation detail. """
for k, v in root.attrs.iteritems():
lst = k[-1]
self.key = key
self.value = value
self.inverted = inverted
def __invert__(self):
return self.__class__(self.key, self.value, True)
def collides(self, other):
return False
def __repr__(self):
return '<{}FitsHeaderEntry({!r}, {!r})>'.format(
'~' if self.inverted else '', self.key, self.value)
walker = AttrWalker()
@walker.add_creator(AttrOr)
def _create(wlk, root, session):
entries = [set(wlk.create(attr, session)) for attr in root.attrs]
return list(set.union(*entries))
@walker.add_creator(AttrAnd)
def _create(wlk, root, session):
entries = [set(wlk.create(attr, session)) for attr in root.attrs]
return list(set.intersection(*entries))
def _inverter_helper(query, inverted):
def __init__(self, value):
super(Sample, self).__init__(value)
self.value = value.to(u.s).value
class Quicklook(_VSOSimpleAttr):
pass
class PScale(_VSOSimpleAttr):
pass
# The walker specifies how the Attr-tree is converted to a query the
# server can handle.
walker = AttrWalker()
# The _create functions make a new VSO query from the attribute tree,
# the _apply functions take an existing query-block and update it according
# to the attribute tree passed in as root. Different attributes require
# different functions for conversion into query blocks.
@walker.add_creator(ValueAttr, AttrAnd)
# pylint: disable=E0102,C0103,W0613
def _create(wlk, root, api):
""" Implementation detail. """
value = api.factory.create('QueryRequestBlock')
wlk.apply(root, api, value)
return [value]