class IntervalCache:
# Tree is the L1 cache
tree = IntervalTree()
# L2 cache: frequent items
frequentItems = {}
# L2 eviction cache
evictedItems = {}
def __init__(self, size, threshold):
self.size = size
self.threshold = threshold
self.l1 = ARC(size, self.evict)
def evict(self, node):
pass
#self.tree.rbTree.remove(node)
# TODO: check overlaps to update frequency on overlapping items
def add(self, min, max):
# Update the L1 cache and the interval tree when an item is added
key = str(min) + " " + str(max)
if not self.l1.contains(key):
#node = self.tree.insert(Interval(min, max))
self.l1.add(key, True)
# Check the support if the item should be moved to the L2 cache
else:
self.l1.add(key, None)
if key in self.l1.t2:
if self.l1.t2[key][0] > self.threshold:
self.frequentItems[key] = time.time()
def main():
if (len(sys.argv)>1):
filename = sys.argv[1]
else:
filename = "test_data.txt"
infile = open(filename,'r')
for line in infile:
(name,start,end) = line.strip().split(' ')
print "%s, %s, %s" % (name,start,end)
i = IntervalTree()
# 1,3,4,5,6,8,10
# use a mix of insert and load
# to test the total functionality
"""
5
3 8
1 4 6 10
"""
i.insert(6)
i.insert(3)
i.insert(3)
i.insert(4)
i.load(1)
i.load(5)
i.load(8)
i.load(10)
i.unload()
print ""
i.inorder( debug2 )
# time to test insertions
i.add(3,8,"yohann")
print ""
i.inorder( debug2 )
i.inorder( debug3 )
def main():
"""
Function for testing interval tree
"""
# default filename
if (len(sys.argv)>1):
filename = sys.argv[1]
else:
filename = "composers.txt"
# open our input text file
infile = open(filename,'r')
data = []
# process the file
for line in infile:
(name,start,end) = line.strip().split(' ')
print "%s, %s, %s" % (name,start,end)
data.append((int(start),int(end),name))
print ""
# define interval-tree instance
i = IntervalTree()
"""
# special insert
i.insert(1874)
i.insert(1779)
i.insert(1951)
i.insert(1672)
i.insert(1828)
i.insert(1907)
i.insert(1971)
i.insert(1585)
i.insert(1756)
i.insert(1791)
i.insert(1843)
i.insert(1888)
################
"""
# load pts
for tup in data:
i.load(tup[0])
i.load(tup[1])
# don't forget to "unload"
i.unload()
# insert objects into interval-tree
for tup in data:
#s = StringWrapper(tup[2])
#i.add(tup[0],tup[1],s)
i.add(tup[0],tup[1],tup[2])
# dump tree contents
i.inorder( debug2 )
print ""
i.inorder( debug3 )
print ""
#while True:
#ep = int(raw_input())
#print "date: %d" % ep, ["%s" % obj for obj in i.query_endpoint( ep )]
# test endpoint
for ep in [1400,1828,1830,1907,1908,1780,1888,1887,1757]:
#print "date: %d" % ep, ["%s" % obj for obj.name in i.query_endpoint( ep )]
print "date: %d" % ep, ["%s" % obj for obj in i.query_endpoint( ep )]
