def __call__(self):
if self.context.klass == set:
return 'set.union(%s, %s)' % (IAlgebraCompiler(
self.context.coll1)(), IAlgebraCompiler(self.context.coll2)())
elif self.context.klass == list:
return '(%s)+(%s)' % (IAlgebraCompiler(
self.context.coll1)(), IAlgebraCompiler(self.context.coll2)())
def __call__(self):
if self.context.klass == set:
return 'set(filter(%s, %s))' % (IAlgebraCompiler(
self.context.func)(), IAlgebraCompiler(self.context.call)())
if self.context.klass == list:
return 'filter()%s, %s' % (IAlgebraCompiler(
self.context.func)(), IAlgebraCompiler(self.context.call)())
def __call__(self):
if self.context.klass == set:
return 'set(range(%s,%s))' % (IAlgebraCompiler(
self.context.start)(), IAlgebraCompiler(self.context.end)())
elif self.context.klass == list:
return 'range(%s,%s)' % (IAlgebraCompiler(
self.context.start)(), IAlgebraCompiler(self.context.end)())
def __call__(self, metadata, algebra):
algebra = self.context.tree
#code = algebra.compile()
adapter = IAlgebraCompiler(algebra)
code = adapter()
run = RunnableQuery(metadata, self.context, code)
return run
def __call__(self):
if self.context.klass == set:
return 'reduce(%s, map(%s, %s), %s)' % (IAlgebraCompiler(
self.context.aggreg)(), IAlgebraCompiler(
self.context.func)(), IAlgebraCompiler(self.context.coll)(
), IAlgebraCompiler(self.context.expr)())
elif self.context.klass == list:
return 'reduce(%s, map(%s, %s), %s)' % (IAlgebraCompiler(
self.context.aggreg)(), IAlgebraCompiler(
self.context.func)(), IAlgebraCompiler(self.context.coll)(
), IAlgebraCompiler(self.context.expr)())
def reanalyze(self):
optimizedalgebra = IAlgebraOptimizer(self.alg)(self.metadata)
runnable = IAlgebraCompiler(optimizedalgebra)(self.metadata,
optimizedalgebra)
self.metadata = runnable.metadata
self.alg = runnable.alg
self.code = runnable.code
return self
def compile(self, query):
#TODO: later use maybe named adapters
metadata = IDB(None)
objectquery = IQueryParser(query)(metadata)
optimizedoq = IQueryOptimizer(objectquery)()
algebra = IRewriter(optimizedoq)()
optimizedalgebra = IAlgebraOptimizer(algebra)()
runnable = IAlgebraCompiler(optimizedalgebra)(metadata, algebra)
return runnable
def compile(expr):
#nasty?? thing to allow compilation of not fully compliant algebra tree
#mostly required for demonstration purposes
try:
code = IAlgebraCompiler(expr)()
except TypeError:
if RELAX_COMPILE:
if isinstance(expr, basestring):
return expr
return unicode(expr)
else:
raise
return code
def compile(self, query):
#TODO: later use maybe named adapters
metadata = IDB(None)
if IObjectQueryHead.providedBy(query):
objectquery = query
else:
objectquery = IQueryParser(query)(metadata)
optimizedoq = IQueryOptimizer(objectquery)()
algebra = IRewriter(optimizedoq)()
optimizedalgebra = IAlgebraOptimizer(algebra)(metadata)
runnable = IAlgebraCompiler(optimizedalgebra)(metadata, optimizedalgebra)
return runnable
def compile(self, query):
#TODO: later use maybe named adapters
metadata = IDB(None)
if IObjectQueryHead.providedBy(query):
objectquery = query
else:
objectquery = IQueryParser(query)(metadata)
optimizedoq = IQueryOptimizer(objectquery)()
algebra = IRewriter(optimizedoq)()
optimizedalgebra = IAlgebraOptimizer(algebra)(metadata)
#algebra is passed here to keep track of the original one, not the optimized
runnable = IAlgebraCompiler(optimizedalgebra)(metadata, algebra)
return runnable
def __call__(self):
if self.context.func is LambdaCompiler and \
self.context.call is set and \
self.context.expr is IfCompiler:
if self.context.klass == set:
return 'reduce(set.union, map(%s,%s), set())' % (
IAlgebraCompiler(self.context.func)(),
IAlgebraCompiler(self.context.coll)())
if self.context.klass == list:
return 'reduce(operator.add, map(%s, %s), [])' % (
IAlgebraCompiler(self.context.func)(),
IAlgebraCompiler(self.context.coll)())
else:
if self.context.klass == set:
return 'reduce(set.union, map(%s,%s), set())' % (
IAlgebraCompiler(self.context.func)(),
IAlgebraCompiler(self.context.coll)())
if self.context.klass == list:
return 'reduce(operator.add, map(%s, %s), [])' % (
IAlgebraCompiler(self.context.func)(),
IAlgebraCompiler(self.context.coll)())
def reanalyze(self):
optimizedalgebra = IAlgebraOptimizer(self.alg)(self.metadata)
runnable = IAlgebraCompiler(optimizedalgebra)(self.metadata,
optimizedalgebra)
return runnable
def __call__(self):
if self.context.klass == set:
return 'set([' + IAlgebraCompiler(self.context.expr)() + '])'
elif self.context.klass == list:
return '[' + IAlgebraCompiler(self.context.expr)() + ']'
def __call__(self):
return '%s%s%s' % (IAlgebraCompiler(
self.context.left)(), self.context.op.op,
IAlgebraCompiler(self.context.right)())
def __call__(self):
return 'lambda %s: %s' % (self.context.var,
IAlgebraCompiler(self.context.expr)())
def __call__(self):
return '((%s) and (%s) or (%s))' % (IAlgebraCompiler(
self.context.cond)(), IAlgebraCompiler(
self.context.expr1)(), IAlgebraCompiler(self.context.expr2)())
def __call__(self):
return '%s(metadata.getAll("%s"))' % (
self.context.coll1.__name__, IAlgebraCompiler(self.context.expr)())