def test_mr_search(self):
"""
Try a successful map/reduce from search results.
"""
btype = self.client.bucket_type(self.yz_mr['btype'])
bucket = btype.bucket(self.yz_mr['bucket'])
bucket.new(
"Pebbles", {
"name_s": "Fruity Pebbles",
"maker_s": "Post",
"sugar_i": 9,
"calories_i": 110,
"fruit_b": True
}).store()
bucket.new(
"Loops", {
"name_s": "Froot Loops",
"maker_s": "Kellogg's",
"sugar_i": 12,
"calories_i": 110,
"fruit_b": True
}).store()
bucket.new(
"Charms", {
"name_s": "Lucky Charms",
"maker_s": "General Mills",
"sugar_i": 10,
"calories_i": 110,
"fruit_b": False
}).store()
bucket.new(
"Count", {
"name_s": "Count Chocula",
"maker_s": "General Mills",
"sugar_i": 9,
"calories_i": 100,
"fruit_b": False
}).store()
bucket.new(
"Crunch", {
"name_s": "Cap'n Crunch",
"maker_s": "Quaker Oats",
"sugar_i": 12,
"calories_i": 110,
"fruit_b": False
}).store()
# Wait for Solr to catch up
wait_for_yz_index(bucket, "Crunch")
mr = RiakMapReduce(self.client).search(self.yz_mr['bucket'],
'fruit_b:false')
mr.map("""function(v) {
var solr_doc = JSON.parse(v.values[0].data);
return [solr_doc["calories_i"]]; }""")
result = mr.reduce('function(values, arg) ' +
'{ return [values.sort()[0]]; }').run()
self.assertEqual(result, [100])
def map(self, *args):
"""
Start assembling a Map/Reduce operation.
A shortcut for :meth:`~riak.mapreduce.RiakMapReduce.map`.
:rtype: :class:`~riak.mapreduce.RiakMapReduce`
"""
mr = RiakMapReduce(self.client)
mr.add(self.bucket.name, self.key)
return mr.map(*args)
def map(self, *args):
"""
Start assembling a Map/Reduce operation.
A shortcut for :func:`RiakMapReduce.map`.
:rtype: RiakMapReduce
"""
mr = RiakMapReduce(self.client)
mr.add(self.bucket.name, self.key)
return mr.map(*args)
def map(self, *args):
"""
Start assembling a Map/Reduce operation.
A shortcut for :meth:`~riak.mapreduce.RiakMapReduce.map`.
:rtype: :class:`~riak.mapreduce.RiakMapReduce`
"""
mr = RiakMapReduce(self.client)
mr.add(self.bucket.name, self.key)
return mr.map(*args)
def map(self, *args):
"""
Start assembling a Map/Reduce operation.
A shortcut for :func:`RiakMapReduce.map`.
:rtype: RiakMapReduce
"""
mr = RiakMapReduce(self.client)
mr.add(self.bucket.name, self.key)
return mr.map(*args)
def test_mr_search(self):
"""
Try a successful map/reduce from search results.
"""
btype = self.client.bucket_type(testrun_yz_mr['btype'])
bucket = btype.bucket(testrun_yz_mr['bucket'])
bucket.new("Pebbles", {"name_s": "Fruity Pebbles",
"maker_s": "Post",
"sugar_i": 9,
"calories_i": 110,
"fruit_b": True}).store()
bucket.new("Loops", {"name_s": "Froot Loops",
"maker_s": "Kellogg's",
"sugar_i": 12,
"calories_i": 110,
"fruit_b": True}).store()
bucket.new("Charms", {"name_s": "Lucky Charms",
"maker_s": "General Mills",
"sugar_i": 10,
"calories_i": 110,
"fruit_b": False}).store()
bucket.new("Count", {"name_s": "Count Chocula",
"maker_s": "General Mills",
"sugar_i": 9,
"calories_i": 100,
"fruit_b": False}).store()
bucket.new("Crunch", {"name_s": "Cap'n Crunch",
"maker_s": "Quaker Oats",
"sugar_i": 12,
"calories_i": 110,
"fruit_b": False}).store()
# Wait for Solr to catch up
wait_for_yz_index(bucket, "Crunch")
mr = RiakMapReduce(self.client).search(testrun_yz_mr['bucket'],
'fruit_b:false')
mr.map("""function(v) {
var solr_doc = JSON.parse(v.values[0].data);
return [solr_doc["calories_i"]]; }""")
result = mr.reduce('function(values, arg) ' +
'{ return [values.sort()[0]]; }').run()
self.assertEqual(result, [100])
def _mapreduce_keyfilter(self, index, keyfilter, sortby=None, limit=None):
"""
Helper function to execute a map-reduce query using the given key filter
"""
results = None
log.debug("Riak query %r with key filter %r", index, keyfilter)
mapred = RiakMapReduce(self.client)
mapred.add_bucket(self._get_bucket(index))
mapred.add_key_filters(keyfilter)
# custom Riak.mapValuesJson() function that also adds the entry key to the data structure
mapred.map("""
function(value, keyData, arg) {
if (value.not_found) {
return [value];
}
var _data, data = value["values"][0]["data"];
if (Riak.getClassName(data) !== "Array") {
_data = JSON.parse(data);
_data["_key"] = value.key;
return [_data];
}
else {
return data
}
}
""")
if sortby is not None:
comp = '<' if limit is not None and limit < 0 else '>'
mapred.reduce_sort('function(a,b){ return (a.%s || 0) %s (b.%s || 0) ? 1 : 0; }' % (sortby, comp, sortby))
if limit is not None:
mapred.reduce_limit(abs(limit))
try:
results = mapred.run()
except Exception, e:
log.warning("Riak MapReduce exception: %s", str(e))
results = None
