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83 lines
2.9 KiB
Python
83 lines
2.9 KiB
Python
# 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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import MySQLdb
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import os
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from utilities import bash
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from cloudException import CloudRuntimeException
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import sys
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class Database:
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"""Database connection"""
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def __init__(self, username, password=None, host='localhost', port='3306', db="cloud"):
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self.host = host
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self.username = username
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self.password = password
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self.port = port
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self.db = db
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def execute(self, statement):
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txn = None
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try:
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if self.password is not None:
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txn = MySQLdb.Connect(host=self.host, user=self.username,
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passwd=self.password, db=self.db)
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else:
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txn = MySQLdb.Connect(host=self.host, user=self.username,
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db=self.db)
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cursor = txn.cursor()
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cursor.execute(statement)
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cursor.close()
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txn.commit()
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if txn is not None:
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try:
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txn.close()
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except:
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pass
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except:
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if txn is not None:
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try:
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txn.close()
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except:
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pass
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raise CloudRuntimeException("Failed to execute:%s"%statement)
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def testConnection(self):
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try:
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if self.password is not None:
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db = MySQLdb.Connect(host=self.host, user=self.username,
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passwd=self.password, db=self.db)
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else:
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db = MySQLdb.Connect(host=self.host, user=self.username,
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db=self.db)
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return True
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except:
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raise CloudRuntimeException("Failed to Connect to DB")
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def executeFromFile(self, file):
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if not os.path.exists(file):
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return False
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cmdLine = "mysql --host=" + self.host + " --port=" + str(self.port) + " --user=" + self.username
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if self.password is not None:
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cmdLine += " --password=" + self.password
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cmdLine += " < " + file
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try:
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bash(cmdLine)
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except:
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raise CloudRuntimeException("Failed to execute " + cmdLine)
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