mirror of https://github.com/apache/cassandra
96 lines
2.7 KiB
Python
96 lines
2.7 KiB
Python
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import exceptions
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import datetime
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import time
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import connection
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import marshal
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# dbapi Error hierarchy
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class Warning(exceptions.StandardError): pass
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class Error (exceptions.StandardError): pass
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class InterfaceError(Error): pass
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class DatabaseError (Error): pass
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class DataError (DatabaseError): pass
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class OperationalError (DatabaseError): pass
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class IntegrityError (DatabaseError): pass
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class InternalError (DatabaseError): pass
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class ProgrammingError (DatabaseError): pass
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class NotSupportedError(DatabaseError): pass
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# Module constants
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apilevel = 1.0
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threadsafety = 1 # Threads may share the module, but not connections/cursors.
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paramstyle = 'named'
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# TODO: Pull connections out of a pool instead.
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def connect(host, port=9160, keyspace='system', user=None, password=None):
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return connection.Connection(host, port, keyspace, user, password)
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# Module Type Objects and Constructors
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Date = datetime.date
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Time = datetime.time
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Timestamp = datetime.datetime
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Binary = buffer
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def DateFromTicks(ticks):
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return Date(*time.localtime(ticks)[:3])
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def TimeFromTicks(ticks):
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return Time(*time.localtime(ticks)[3:6])
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def TimestampFromTicks(ticks):
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return Timestamp(*time.localtime(ticks)[:6])
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class DBAPITypeObject:
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def __init__(self, *values):
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self.values = values
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def __cmp__(self,other):
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if other in self.values:
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return 0
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if other < self.values:
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return 1
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else:
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return -1
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STRING = DBAPITypeObject(marshal.BYTES_TYPE, marshal.ASCII_TYPE, marshal.UTF8_TYPE)
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BINARY = DBAPITypeObject(marshal.BYTES_TYPE, marshal.UUID_TYPE, marshal.LEXICAL_UUID_TYPE)
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NUMBER = DBAPITypeObject(marshal.LONG_TYPE, marshal.INTEGER_TYPE)
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DATETIME = DBAPITypeObject(marshal.TIME_UUID_TYPE)
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ROWID = DBAPITypeObject(marshal.BYTES_TYPE, marshal.ASCII_TYPE, marshal.UTF8_TYPE,
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marshal.INTEGER_TYPE, marshal.LONG_TYPE, marshal.UUID_TYPE,
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marshal.LEXICAL_UUID_TYPE, marshal.TIME_UUID_TYPE)
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