def testTwoBatchesInterleave(self):
register = SuspendRegister(batchMode=True)
resumed = []
def signalUpdate(stamp):
register.signalOaiUpdate(metadataPrefixes=['prefix'], sets=set(), otherKey='ignored', stamp=stamp)
def suspendBeforeSelect(clientIdentifier, continueAfter='1000'):
suspend = compose(register.suspendBeforeSelect(clientIdentifier=clientIdentifier, prefix='prefix', sets=[], continueAfter=continueAfter)).next()
suspend(CallTrace('reactor'), lambda: resumed.append(clientIdentifier))
signalUpdate(1000)
register.startOaiBatch()
suspendBeforeSelect('client0')
self.assertEquals([], resumed)
signalUpdate(1001)
signalUpdate(1002)
register.startOaiBatch()
self.assertEquals([], resumed)
suspendBeforeSelect('client1')
signalUpdate(1003)
register.stopOaiBatch()
self.assertEquals(['client0', 'client1'], sorted(resumed))
del resumed[:]
suspendBeforeSelect('client2')
signalUpdate(1004)
register.stopOaiBatch()
self.assertEquals(['client2'], sorted(resumed))
signalUpdate(1005)
self.assertRaises(AttributeError, lambda: register.stopOaiBatch())
def testSuspendBeforeSelect(self):
self.assertEqual([],
asList(SuspendRegister().suspendBeforeSelect(
continueAfter='9876', some='argument')))
self.assertEqual(
[],
asList(
SuspendRegister(batchMode=True).suspendBeforeSelect(
continueAfter='9876', some='argument')))
def testResumeOnlyMatchingSuspends(self):
def test(register):
resumed = []
def suspendAfterNoResult(clientIdentifier, prefix, sets):
if not clientIdentifier in register:
suspendObject = next(
compose(
register.suspendAfterNoResult(
clientIdentifier=clientIdentifier,
prefix=prefix,
sets=sets)))
suspendObject(CallTrace('reactor'),
lambda: resumed.append(clientIdentifier))
def prepareSuspends():
resumed[:] = []
suspendAfterNoResult(clientIdentifier="client 1",
prefix='prefix1',
sets=[])
suspendAfterNoResult(clientIdentifier="client 2",
prefix='prefix2',
sets=[])
suspendAfterNoResult(clientIdentifier="client 3",
prefix='prefix2',
sets=['set_a'])
prepareSuspends()
register.signalOaiUpdate(metadataPrefixes=['prefix2'],
sets=['set_b'],
stamp=1000)
self.assertEqual(['client 2'], resumed)
prepareSuspends()
register.signalOaiUpdate(metadataPrefixes=['prefix2'],
sets=['set_a'],
stamp=1001)
self.assertEqual(['client 2', 'client 3'], sorted(resumed))
test(SuspendRegister())
test(SuspendRegister(batchMode=True)) # immediate resume state
def testSignalOaiUpdate(self):
def test(register):
reactor = CallTrace("reactor")
suspend = next(
compose(
register.suspendAfterNoResult(
clientIdentifier="a-client-id",
prefix='prefix',
sets=[])))
self.assertEqual(Suspend, type(suspend))
resumed = []
suspend(reactor, lambda: resumed.append(True))
self.assertEqual([], resumed)
register.signalOaiUpdate(metadataPrefixes=['prefix'],
sets=set(),
otherKey='ignored',
stamp=1000)
self.assertEqual([True], resumed)
self.assertEqual(0, len(register))
test(SuspendRegister())
test(SuspendRegister(batchMode=True)) # immediate resume state
def testSuspendBeforeSelectWithoutUpdates(self):
reactor = CallTrace("reactor")
register = SuspendRegister(batchMode=True)
register.signalOaiUpdate(metadataPrefixes=['prefix'], sets=set(), otherKey='ignored', stamp=1000)
register.startOaiBatch()
resumed = []
suspend = compose(register.suspendBeforeSelect(clientIdentifier="id0", prefix='prefix', sets=[], continueAfter='1000')).next()
suspend(reactor, lambda: resumed.append(True))
self.assertEquals([], resumed)
self.assertEquals(1, len(register))
register.stopOaiBatch()
self.assertEquals([], resumed)
self.assertEquals(1, len(register))
def testInitialBatchSuspendAfterNoResult(self):
reactor = CallTrace("reactor")
register = SuspendRegister(batchMode=True)
register.startOaiBatch()
suspend = compose(register.suspendAfterNoResult(clientIdentifier="a-client-id", prefix='prefix', sets=[])).next()
self.assertEquals(Suspend, type(suspend))
resumed = []
suspend(reactor, lambda: resumed.append(True))
self.assertEquals([], resumed)
register.signalOaiUpdate(metadataPrefixes=['prefix'], sets=set(), otherKey='ignored', stamp=1000)
self.assertEquals([], resumed)
self.assertEquals(1, len(register))
register.stopOaiBatch()
self.assertEquals([True], resumed)
self.assertEquals(0, len(register))
def testSuspendBeforeSelectWithoutUpdates(self):
reactor = CallTrace("reactor")
register = SuspendRegister(batchMode=True)
register.signalOaiUpdate(metadataPrefixes=['prefix'],
sets=set(),
otherKey='ignored',
stamp=1000)
register.startOaiBatch()
resumed = []
suspend = next(
compose(
register.suspendBeforeSelect(clientIdentifier="id0",
prefix='prefix',
sets=[],
continueAfter='1000')))
suspend(reactor, lambda: resumed.append(True))
self.assertEqual([], resumed)
self.assertEqual(1, len(register))
register.stopOaiBatch()
self.assertEqual([], resumed)
self.assertEqual(1, len(register))
def testShouldResumeAPreviousSuspendAfterTooManySuspends(self):
def test(suspendMethod):
with stderr_replaced() as s:
s1 = compose(suspendMethod(clientIdentifier="a-client-id", prefix='prefix', sets=[], continueAfter='9876')).next()
s1(CallTrace('reactor'), lambda: None)
compose(suspendMethod(clientIdentifier="another-client-id", prefix='prefix', sets=[], continueAfter='9876')).next()
try:
s1.getResult()
self.fail()
except ForcedResumeException:
self.assertEquals("Too many suspended connections in SuspendRegister. One random connection has been resumed.\n", s.getvalue())
test(SuspendRegister(maximumSuspendedConnections=1).suspendAfterNoResult)
test(SuspendRegister(batchMode=True, maximumSuspendedConnections=1).suspendAfterNoResult)
batchRegister = SuspendRegister(batchMode=True, maximumSuspendedConnections=1)
batchRegister.startOaiBatch()
test(batchRegister.suspendAfterNoResult)
batchRegister = SuspendRegister(batchMode=True, maximumSuspendedConnections=1)
batchRegister._setLastStamp(1000)
batchRegister.startOaiBatch()
test(batchRegister.suspendBeforeSelect) #only suspend in batch (not outside)
def testInitialBatchSuspendBeforeResult(self):
register = SuspendRegister(batchMode=True)
register.startOaiBatch()
self.assertEqual([],
asList(
register.suspendBeforeSelect(
clientIdentifier="a-client-id",
prefix='prefix',
sets=[],
continueAfter='0')))
self.assertEqual([],
asList(
register.suspendBeforeSelect(
clientIdentifier="a-client-id",
prefix='prefix',
sets=[],
continueAfter='1000')))
def testEachBatchWillHaveItsOwnTimestamp(self):
reactor = CallTrace("reactor")
register = SuspendRegister(batchMode=True)
register.signalOaiUpdate(metadataPrefixes=['prefix'], sets=set(), otherKey='ignored', stamp=1000)
register.startOaiBatch()
suspend = compose(register.suspendBeforeSelect(clientIdentifier="id0", prefix='prefix', sets=[], continueAfter='1000')).next()
suspend(reactor, lambda: None)
register.signalOaiUpdate(metadataPrefixes=['prefix'], sets=set(), otherKey='ignored', stamp=2000)
self.assertEquals(1, len(register))
register.stopOaiBatch()
self.assertEquals(0, len(register))
register.startOaiBatch()
self.assertEquals([], asList(register.suspendBeforeSelect(clientIdentifier="id0", prefix='prefix', sets=[], continueAfter='1000')))
self.assertEquals(0, len(register))
def testStopStopBoom(self):
register = SuspendRegister(batchMode=True)
register.startOaiBatch()
register.stopOaiBatch()
self.assertRaises(AttributeError, lambda: register.stopOaiBatch())
def testSuspendRegisterWithoutBatchIgnoreStartStop(self):
register = SuspendRegister()
register.startOaiBatch()
register.startOaiBatch()
register.startOaiBatch()
def testEachBatchWillHaveItsOwnTimestamp(self):
reactor = CallTrace("reactor")
register = SuspendRegister(batchMode=True)
register.signalOaiUpdate(metadataPrefixes=['prefix'],
sets=set(),
otherKey='ignored',
stamp=1000)
register.startOaiBatch()
suspend = next(
compose(
register.suspendBeforeSelect(clientIdentifier="id0",
prefix='prefix',
sets=[],
continueAfter='1000')))
suspend(reactor, lambda: None)
register.signalOaiUpdate(metadataPrefixes=['prefix'],
sets=set(),
otherKey='ignored',
stamp=2000)
self.assertEqual(1, len(register))
register.stopOaiBatch()
self.assertEqual(0, len(register))
register.startOaiBatch()
self.assertEqual([],
asList(
register.suspendBeforeSelect(
clientIdentifier="id0",
prefix='prefix',
sets=[],
continueAfter='1000')))
self.assertEqual(0, len(register))
def testStopStopBoom(self):
register = SuspendRegister(batchMode=True)
register.startOaiBatch()
register.stopOaiBatch()
self.assertRaises(AttributeError, lambda: register.stopOaiBatch())
def testSuspendRegisterWithoutBatchIgnoreStartStop(self):
register = SuspendRegister()
register.startOaiBatch()
register.startOaiBatch()
register.startOaiBatch()
def testSuspendSameClientTwiceBeforeResuming(self):
def test(suspendMethod):
s1 = next(
compose(
suspendMethod(clientIdentifier="a-client-id",
prefix='prefix',
sets=[],
continueAfter='9876')))
s1(CallTrace('reactor'), lambda: None)
next(
compose(
suspendMethod(clientIdentifier="a-client-id",
prefix='prefix',
sets=[],
continueAfter='9876')))
try:
s1.getResult()
self.fail()
except ForcedResumeException as e:
self.assertEqual(
"Aborting suspended request because of new request for the same OaiClient with identifier: a-client-id.",
str(e))
test(SuspendRegister().suspendAfterNoResult)
test(SuspendRegister(batchMode=True).suspendAfterNoResult)
batchRegister = SuspendRegister(batchMode=True)
batchRegister.startOaiBatch()
test(batchRegister.suspendAfterNoResult)
batchRegister = SuspendRegister(batchMode=True)
batchRegister._setLastStamp(1000)
batchRegister.startOaiBatch()
test(batchRegister.suspendBeforeSelect
) #only suspend in batch (not outside)
def testInitialBatchSuspendBeforeResult(self):
register = SuspendRegister(batchMode=True)
register.startOaiBatch()
self.assertEquals([], asList(register.suspendBeforeSelect(clientIdentifier="a-client-id", prefix='prefix', sets=[], continueAfter='0')))
self.assertEquals([], asList(register.suspendBeforeSelect(clientIdentifier="a-client-id", prefix='prefix', sets=[], continueAfter='1000')))
def testTwoBatchesInterleave(self):
register = SuspendRegister(batchMode=True)
resumed = []
def signalUpdate(stamp):
register.signalOaiUpdate(metadataPrefixes=['prefix'],
sets=set(),
otherKey='ignored',
stamp=stamp)
def suspendBeforeSelect(clientIdentifier, continueAfter='1000'):
suspend = next(
compose(
register.suspendBeforeSelect(
clientIdentifier=clientIdentifier,
prefix='prefix',
sets=[],
continueAfter=continueAfter)))
suspend(CallTrace('reactor'),
lambda: resumed.append(clientIdentifier))
signalUpdate(1000)
register.startOaiBatch()
suspendBeforeSelect('client0')
self.assertEqual([], resumed)
signalUpdate(1001)
signalUpdate(1002)
register.startOaiBatch()
self.assertEqual([], resumed)
suspendBeforeSelect('client1')
signalUpdate(1003)
register.stopOaiBatch()
self.assertEqual(['client0', 'client1'], sorted(resumed))
del resumed[:]
suspendBeforeSelect('client2')
signalUpdate(1004)
register.stopOaiBatch()
self.assertEqual(['client2'], sorted(resumed))
signalUpdate(1005)
self.assertRaises(AttributeError, lambda: register.stopOaiBatch())
def testResumeOnlyMatchingSuspendsInBatchMode(self):
register = SuspendRegister(batchMode=True)
register._setLastStamp(999)
register.startOaiBatch()
resumed = []
def suspendBeforeSelect(clientIdentifier, prefix, sets, continueAfter):
suspendObject = next(
compose(
register.suspendBeforeSelect(
clientIdentifier=clientIdentifier,
prefix=prefix,
sets=sets,
continueAfter=continueAfter)))
suspendObject(CallTrace('reactor'),
lambda: resumed.append(clientIdentifier))
suspendBeforeSelect('id0',
prefix='p0',
sets=['s0'],
continueAfter='1000')
suspendBeforeSelect('id1',
prefix='p0',
sets=['s1'],
continueAfter='1000')
suspendBeforeSelect('id2',
prefix='p0',
sets=['s1'],
continueAfter='1000')
suspendBeforeSelect('id3', prefix='p0', sets=[], continueAfter='1000')
suspendBeforeSelect('id4',
prefix='p1',
sets=['s0'],
continueAfter='1000')
suspendBeforeSelect('id5', prefix='p1', sets=[], continueAfter='1000')
register.signalOaiUpdate(metadataPrefixes=['p0'],
sets=set(),
stamp=1001)
self.assertEqual([], resumed)
register.stopOaiBatch()
# nobody cared about the update
self.assertEqual(['id3'], resumed)
del resumed[:]
register.startOaiBatch()
register.signalOaiUpdate(metadataPrefixes=['p0'],
sets=set(['s0', 's1']),
stamp=1002)
self.assertEqual([], resumed)
register.stopOaiBatch()
self.assertEqual(['id0', 'id1', 'id2'], sorted(resumed))
del resumed[:]
register.startOaiBatch()
register.signalOaiUpdate(metadataPrefixes=['p1'],
sets=set('s42'),
stamp=1001)
register.stopOaiBatch()
self.assertEqual(['id5'], sorted(resumed))
def testShouldResumeAPreviousSuspendAfterTooManySuspends(self):
def test(suspendMethod):
with stderr_replaced() as s:
s1 = next(
compose(
suspendMethod(clientIdentifier="a-client-id",
prefix='prefix',
sets=[],
continueAfter='9876')))
s1(CallTrace('reactor'), lambda: None)
next(
compose(
suspendMethod(clientIdentifier="another-client-id",
prefix='prefix',
sets=[],
continueAfter='9876')))
try:
s1.getResult()
self.fail()
except ForcedResumeException:
self.assertEqual(
"Too many suspended connections in SuspendRegister. One random connection has been resumed.\n",
s.getvalue())
test(
SuspendRegister(
maximumSuspendedConnections=1).suspendAfterNoResult)
test(
SuspendRegister(
batchMode=True,
maximumSuspendedConnections=1).suspendAfterNoResult)
batchRegister = SuspendRegister(batchMode=True,
maximumSuspendedConnections=1)
batchRegister.startOaiBatch()
test(batchRegister.suspendAfterNoResult)
batchRegister = SuspendRegister(batchMode=True,
maximumSuspendedConnections=1)
batchRegister._setLastStamp(1000)
batchRegister.startOaiBatch()
test(batchRegister.suspendBeforeSelect
) #only suspend in batch (not outside)
def testResumeOnlyMatchingSuspendsInBatchMode(self):
register = SuspendRegister(batchMode=True)
register._setLastStamp(999)
register.startOaiBatch()
resumed = []
def suspendBeforeSelect(clientIdentifier, prefix, sets, continueAfter):
suspendObject = compose(register.suspendBeforeSelect(clientIdentifier=clientIdentifier, prefix=prefix, sets=sets, continueAfter=continueAfter)).next()
suspendObject(CallTrace('reactor'), lambda: resumed.append(clientIdentifier))
suspendBeforeSelect('id0', prefix='p0', sets=['s0'], continueAfter='1000')
suspendBeforeSelect('id1', prefix='p0', sets=['s1'], continueAfter='1000')
suspendBeforeSelect('id2', prefix='p0', sets=['s1'], continueAfter='1000')
suspendBeforeSelect('id3', prefix='p0', sets=[], continueAfter='1000')
suspendBeforeSelect('id4', prefix='p1', sets=['s0'], continueAfter='1000')
suspendBeforeSelect('id5', prefix='p1', sets=[], continueAfter='1000')
register.signalOaiUpdate(metadataPrefixes=['p0'], sets=set(), stamp=1001)
self.assertEquals([], resumed)
register.stopOaiBatch()
# nobody cared about the update
self.assertEquals(['id3'], resumed)
del resumed[:]
register.startOaiBatch()
register.signalOaiUpdate(metadataPrefixes=['p0'], sets=set(['s0', 's1']), stamp=1002)
self.assertEquals([], resumed)
register.stopOaiBatch()
self.assertEquals(['id0', 'id1', 'id2'], sorted(resumed))
del resumed[:]
register.startOaiBatch()
register.signalOaiUpdate(metadataPrefixes=['p1'], sets=set('s42'), stamp=1001)
register.stopOaiBatch()
self.assertEquals(['id5'], sorted(resumed))
