def queryClaimSize(self, claimType, query):
"""
Queries claim's size
Queries the data according the the given query and returns the number of records retrieved from the query.
Args:
claimType: the claimType
query: the query string
Returns:
The number of records retrieved from the query
Raises:
PersistenceException: There is DB error
"""
try:
claimType = ClaimTypeFactory.load(claimType)
query_parser = RedisQueryParser(claimType)
parse_tree = query_parser.parse(query)
query_executor = RedisQueryExecutor(self.connection, claimType)
object_ids = query_executor.visit(parse_tree)
cnt = len(object_ids)
return cnt
except RedisQueryParserError as e:
raise PersistenceException(*e.args)
except RedisError as e:
raise PersistenceException(*e.args)
def queryClaimSize(self, claimType, query):
"""
Queries claim's size
Queries the data according the the given query and returns the number of records retrieved from the query.
Args:
claimType: the claimType
query: the query string
Returns:
The number of records retrieved from the query
Raises:
PersistenceException: There is DB error
"""
try:
claimType = ClaimTypeFactory.load(claimType)
query_parser = RedisQueryParser(claimType)
parse_tree = query_parser.parse(query)
query_executor = RedisQueryExecutor(self.connection, claimType)
object_ids = query_executor.visit(parse_tree)
cnt = len(object_ids)
return cnt
except RedisQueryParserError as e:
raise PersistenceException(*e.args)
except RedisError as e:
raise PersistenceException(*e.args)
def queryClaims(self, claimType, query, pageNumber, pageSize):
"""
Queries claims
Queries the data according the the given filtering options from the given claim type, and returns the list of
records (as lists) of data for the given claim type
Args:
claimType: the claimType
query: the query string
pageNumber: the page number
pageSize: the page size
Returns:
The list of records of data for the given claim type
Raises:
PersistenceException: There is DB error
"""
try:
claimType = ClaimTypeFactory.load(claimType)
query_parser = RedisQueryParser(claimType)
parse_tree = query_parser.parse(query)
query_executor = RedisQueryExecutor(self.connection, claimType)
object_ids = query_executor.visit(parse_tree)
if pageNumber:
start = (pageNumber - 1) * pageSize
end = start + pageSize
object_ids = object_ids[start:end]
for id in object_ids:
self.cursor.hgetall(claimType.tablename + ":" + id.decode())
claims = self.cursor.execute()
for i in range(len(claims)):
claims[i] = self._convert_to_tuple(claimType, claims[i])
return claims
except RedisQueryParserError as e:
raise PersistenceException(*e.args)
except RedisError as e:
raise PersistenceException(*e.args)
def queryClaims(self, claimType, query, pageNumber, pageSize):
"""
Queries claims
Queries the data according the the given filtering options from the given claim type, and returns the list of
records (as lists) of data for the given claim type
Args:
claimType: the claimType
query: the query string
pageNumber: the page number
pageSize: the page size
Returns:
The list of records of data for the given claim type
Raises:
PersistenceException: There is DB error
"""
try:
claimType = ClaimTypeFactory.load(claimType)
query_parser = RedisQueryParser(claimType)
parse_tree = query_parser.parse(query)
query_executor = RedisQueryExecutor(self.connection, claimType)
object_ids = query_executor.visit(parse_tree)
if pageNumber:
start = (pageNumber-1) * pageSize
end = start + pageSize
object_ids = object_ids[start:end]
for id in object_ids:
self.cursor.hgetall(claimType.tablename + ":" + id.decode())
claims = self.cursor.execute()
for i in range(len(claims)):
claims[i] = self._convert_to_tuple(claimType, claims[i])
return claims
except RedisQueryParserError as e:
raise PersistenceException(*e.args)
except RedisError as e:
raise PersistenceException(*e.args)
