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67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
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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