def compileNullTest(edge):
"""
RETURN A MVEL EXPRESSION THAT WILL EVALUATE TO true FOR OUT-OF-BOUNDS
"""
if edge.domain.type not in domains.ALGEBRAIC:
Log.error("can only translate time and duration domains")
# IS THERE A LIMIT ON THE DOMAIN?
value = edge.value
if isKeyword(value):
value = "doc[\"" + value + "\"].value"
if not edge.domain.max:
if not edge.domain.min:
return False
bot = value2MVEL(edge.domain.min)
nullTest = "" + value + "<" + bot
elif not edge.domain.min:
top = value2MVEL(edge.domain.max)
nullTest = "" + value + ">=" + top
else:
top = value2MVEL(edge.domain.max)
bot = value2MVEL(edge.domain.min)
nullTest = "(" + value + "<" + bot + ") or (" + value + ">=" + top + ")"
return nullTest
def compileNullTest(edge):
"""
RETURN A MVEL EXPRESSION THAT WILL EVALUATE TO true FOR OUT-OF-BOUNDS
"""
if edge.domain.type not in domains.ALGEBRAIC:
Log.error("can only translate time and duration domains")
# IS THERE A LIMIT ON THE DOMAIN?
value = edge.value
if isKeyword(value):
value = "doc[\"" + value + "\"].value"
if not edge.domain.max:
if not edge.domain.min:
return False
bot = value2MVEL(edge.domain.min)
nullTest = "" + value + "<" + bot
elif not edge.domain.min:
top = value2MVEL(edge.domain.max)
nullTest = "" + value + ">=" + top
else:
top = value2MVEL(edge.domain.max)
bot = value2MVEL(edge.domain.min)
nullTest = "(" + value + "<" + bot + ") or (" + value + ">=" + top + ")"
return nullTest
def compileTime2Term(edge):
"""
RETURN MVEL CODE THAT MAPS TIME AND DURATION DOMAINS DOWN TO AN INTEGER AND
AND THE JAVASCRIPT THAT WILL TURN THAT INTEGER BACK INTO A PARTITION (INCLUDING NULLS)
"""
if edge.esscript:
Log.error("edge script not supported yet")
# IS THERE A LIMIT ON THE DOMAIN?
numPartitions = len(edge.domain.partitions)
value = edge.value
if isKeyword(value):
value = "doc[\"" + value + "\"].value"
nullTest = compileNullTest(edge)
ref = coalesce(edge.domain.min, edge.domain.max, datetime(2000, 1, 1))
if edge.domain.interval.month > 0:
offset = ref.subtract(ref.floorMonth(), durations.DAY).milli
if offset > durations.DAY.milli * 28:
offset = ref.subtract(ref.ceilingMonth(), durations.DAY).milli
partition2int = "milli2Month(" + value + ", " + value2MVEL(
offset) + ")"
partition2int = "((" + nullTest + ") ? 0 : " + partition2int + ")"
def int2Partition(value):
if Math.round(value) == 0:
return edge.domain.NULL
d = datetime(str(value)[:4:], str(value)[-2:], 1)
d = d.addMilli(offset)
return edge.domain.getPartByKey(d)
else:
partition2int = "Math.floor((" + value + "-" + value2MVEL(
ref) + ")/" + edge.domain.interval.milli + ")"
partition2int = "((" + nullTest + ") ? " + numPartitions + " : " + partition2int + ")"
def int2Partition(value):
if Math.round(value) == numPartitions:
return edge.domain.NULL
return edge.domain.getPartByKey(
ref.add(edge.domain.interval.multiply(value)))
return Data(toTerm={
"head": "",
"body": partition2int
},
fromTerm=int2Partition)
def compileDuration2Term(edge):
if edge.esscript:
Log.error("edge script not supported yet")
# IS THERE A LIMIT ON THE DOMAIN?
numPartitions = len(edge.domain.partitions)
value = edge.value
if isKeyword(value):
value = "doc[\"" + value + "\"].value"
ref = coalesce(edge.domain.min, edge.domain.max, durations.ZERO)
nullTest = compileNullTest(edge)
ms = edge.domain.interval.milli
if edge.domain.interval.month > 0:
ms = durations.YEAR.milli / 12 * edge.domain.interval.month
partition2int = "Math.floor((" + value + "-" + value2MVEL(ref) + ")/" + ms + ")"
partition2int = "((" + nullTest + ") ? " + numPartitions + " : " + partition2int + ")"
def int2Partition(value):
if Math.round(value) == numPartitions:
return edge.domain.NULL
return edge.domain.getPartByKey(ref.add(edge.domain.interval.multiply(value)))
return Data(toTerm={"head": "", "body": partition2int}, fromTerm=int2Partition)
def compileDuration2Term(edge):
if edge.esscript:
Log.error("edge script not supported yet")
# IS THERE A LIMIT ON THE DOMAIN?
numPartitions = len(edge.domain.partitions)
value = edge.value
if isKeyword(value):
value = "doc[\"" + value + "\"].value"
ref = coalesce(edge.domain.min, edge.domain.max, durations.ZERO)
nullTest = compileNullTest(edge)
ms = edge.domain.interval.milli
if edge.domain.interval.month > 0:
ms = durations.YEAR.milli / 12 * edge.domain.interval.month
partition2int = "Math.floor((" + value + "-" + value2MVEL(
ref) + ")/" + ms + ")"
partition2int = "((" + nullTest + ") ? " + numPartitions + " : " + partition2int + ")"
def int2Partition(value):
if Math.round(value) == numPartitions:
return edge.domain.NULL
return edge.domain.getPartByKey(
ref.add(edge.domain.interval.multiply(value)))
return Data(toTerm={
"head": "",
"body": partition2int
},
fromTerm=int2Partition)
def compileTime2Term(edge):
"""
RETURN MVEL CODE THAT MAPS TIME AND DURATION DOMAINS DOWN TO AN INTEGER AND
AND THE JAVASCRIPT THAT WILL TURN THAT INTEGER BACK INTO A PARTITION (INCLUDING NULLS)
"""
if edge.esscript:
Log.error("edge script not supported yet")
# IS THERE A LIMIT ON THE DOMAIN?
numPartitions = len(edge.domain.partitions)
value = edge.value
if isKeyword(value):
value = 'doc["' + value + '"].value'
nullTest = compileNullTest(edge)
ref = coalesce(edge.domain.min, edge.domain.max, datetime(2000, 1, 1))
if edge.domain.interval.month > 0:
offset = ref.subtract(ref.floorMonth(), durations.DAY).milli
if offset > durations.DAY.milli * 28:
offset = ref.subtract(ref.ceilingMonth(), durations.DAY).milli
partition2int = "milli2Month(" + value + ", " + value2MVEL(offset) + ")"
partition2int = "((" + nullTest + ") ? 0 : " + partition2int + ")"
def int2Partition(value):
if Math.round(value) == 0:
return edge.domain.NULL
d = datetime(str(value)[:4:], str(value)[-2:], 1)
d = d.addMilli(offset)
return edge.domain.getPartByKey(d)
else:
partition2int = "Math.floor((" + value + "-" + value2MVEL(ref) + ")/" + edge.domain.interval.milli + ")"
partition2int = "((" + nullTest + ") ? " + numPartitions + " : " + partition2int + ")"
def int2Partition(value):
if Math.round(value) == numPartitions:
return edge.domain.NULL
return edge.domain.getPartByKey(ref.add(edge.domain.interval.multiply(value)))
return Dict(toTerm={"head": "", "body": partition2int}, fromTerm=int2Partition)
def compileNumeric2Term(edge):
if edge.script:
Log.error("edge script not supported yet")
if edge.domain.type != "numeric" and edge.domain.type != "count":
Log.error("can only translate numeric domains")
numPartitions = len(edge.domain.partitions)
value = edge.value
if isKeyword(value):
value = "doc[\"" + value + "\"].value"
if not edge.domain.max:
if not edge.domain.min:
ref = 0
partition2int = "Math.floor(" + value + ")/" + value2MVEL(
edge.domain.interval) + ")"
nullTest = "false"
else:
ref = value2MVEL(edge.domain.min)
partition2int = "Math.floor((" + value + "-" + ref + ")/" + value2MVEL(
edge.domain.interval) + ")"
nullTest = "" + value + "<" + ref
elif not edge.domain.min:
ref = value2MVEL(edge.domain.max)
partition2int = "Math.floor((" + value + "-" + ref + ")/" + value2MVEL(
edge.domain.interval) + ")"
nullTest = "" + value + ">=" + ref
else:
top = value2MVEL(edge.domain.max)
ref = value2MVEL(edge.domain.min)
partition2int = "Math.floor((" + value + "-" + ref + ")/" + value2MVEL(
edge.domain.interval) + ")"
nullTest = "(" + value + "<" + ref + ") or (" + value + ">=" + top + ")"
partition2int = "((" + nullTest + ") ? " + numPartitions + " : " + partition2int + ")"
offset = convert.value2int(ref)
def int2Partition(value):
if Math.round(value) == numPartitions:
return edge.domain.NULL
return edge.domain.getPartByKey((value * edge.domain.interval) +
offset)
return Data(toTerm={
"head": "",
"body": partition2int
},
fromTerm=int2Partition)
def compileNumeric2Term(edge):
if edge.script:
Log.error("edge script not supported yet")
if edge.domain.type != "numeric" and edge.domain.type != "count":
Log.error("can only translate numeric domains")
numPartitions = len(edge.domain.partitions)
value = edge.value
if isKeyword(value):
value = "doc[\"" + value + "\"].value"
if not edge.domain.max:
if not edge.domain.min:
ref = 0
partition2int = "Math.floor(" + value + ")/" + value2MVEL(edge.domain.interval) + ")"
nullTest = "false"
else:
ref = value2MVEL(edge.domain.min)
partition2int = "Math.floor((" + value + "-" + ref + ")/" + value2MVEL(edge.domain.interval) + ")"
nullTest = "" + value + "<" + ref
elif not edge.domain.min:
ref = value2MVEL(edge.domain.max)
partition2int = "Math.floor((" + value + "-" + ref + ")/" + value2MVEL(edge.domain.interval) + ")"
nullTest = "" + value + ">=" + ref
else:
top = value2MVEL(edge.domain.max)
ref = value2MVEL(edge.domain.min)
partition2int = "Math.floor((" + value + "-" + ref + ")/" + value2MVEL(edge.domain.interval) + ")"
nullTest = "(" + value + "<" + ref + ") or (" + value + ">=" + top + ")"
partition2int = "((" + nullTest + ") ? " + numPartitions + " : " + partition2int + ")"
offset = convert.value2int(ref)
def int2Partition(value):
if Math.round(value) == numPartitions:
return edge.domain.NULL
return edge.domain.getPartByKey((value * edge.domain.interval) + offset)
return Data(toTerm={"head": "", "body": partition2int}, fromTerm=int2Partition)