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cli_object.py
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cli_object.py
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""":mod:`cli_object` support module for error description,
describe query parameters `SQLDescribeParam`,
describe table (cursor) columns SQLDescribeCol` returned in a query.
Using db2app64.dll under Windows, libdb2.so under linux, libdb2.dylib under OSX.
Executing `SQLConnect`.
"""
from __future__ import absolute_import
__all__ = ['Db2_Cli']
from ctypes import c_int, c_void_p, c_char_p, byref, create_string_buffer, c_int8, c_int16,c_short
from ctypes import cdll, CDLL, sizeof
from ctypes.util import find_library
#import inspect
import os
import platform
import sys
import traceback
import ibm_db
import pprint
from texttable import Texttable
from set_users import set_users
try:
import spclient_python
except ImportError as e:
print ("""go to directory cextension and run python setup.py build
cd cextension
python setup.py build
cd ..
""")
sys.exit(0)
import ctypes
if sys.version_info > (3,):
long = int
from cli_test_cases.db2_cli_constants import (
SQL_COMMIT,
SQL_DRIVER_NOPROMPT,
SQL_REAL,
SQL_DOUBLE,
SQL_UNKNOWN_TYPE,
SQL_CHAR,
SQL_NUMERIC,
SQL_DECIMAL,
SQL_INTEGER,
SQL_SMALLINT,
SQL_FLOAT,
SQL_DATETIME,
SQL_VARCHAR,
SQL_BOOLEAN,
SQL_ROW,
SQL_WCHAR,
SQL_WVARCHAR,
SQL_WLONGVARCHAR,
SQL_DECFLOAT,
# One-parameter shortcuts for date/time data types
SQL_TYPE_DATE,
SQL_TYPE_TIME,
SQL_TYPE_TIMESTAMP,
# SQL Datatype for Time Zone
SQL_TYPE_TIMESTAMP_WITH_TIMEZONE,
SQL_C_DEFAULT,
SQL_BIGINT,
SQL_GRAPHIC,
SQL_VARGRAPHIC,
SQL_LONGVARGRAPHIC,
SQL_BLOB,
SQL_CLOB,
SQL_DBCLOB,
SQL_XML,
SQL_CURSORHANDLE,
SQL_DATALINK,
SQL_USER_DEFINED_TYPE,
# SQL extended datatypes
SQL_DATE,
SQL_INTERVAL,
SQL_TIME,
SQL_TIMESTAMP,
SQL_LONGVARCHAR,
SQL_BINARY,
SQL_VARBINARY,
SQL_LONGVARBINARY,
SQL_TINYINT,
SQL_BIT,
SQL_GUID,
SQL_AUTOCOMMIT_OFF,
SQL_AUTOCOMMIT_ON
)
from cli_test_cases.db2_cli_constants import (
SQL_SUCCESS,
SQL_HANDLE_ENV,
SQL_HANDLE_DBC,
SQL_HANDLE_STMT,
SQL_NULL_HANDLE,
SQL_ATTR_ODBC_VERSION,
SQL_ATTR_AUTOCOMMIT,
SQL_ATTR_PARAMSET_SIZE,
SQL_ATTR_CONNECTION_TIMEOUT,
SQL_ATTR_DB2_APPLICATION_ID,
SQL_ATTR_DB2_APPLICATION_HANDLE,
SQL_ATTR_INFO_APPLNAME,
SQL_ATTR_LOGIN_TIMEOUT,
SQL_NTS,
SQL_INVALID_HANDLE,
SQL_ERROR,
SQL_MAX_MESSAGE_LENGTH,
SQL_SQLSTATE_SIZE,
SQL_UNBIND,
SQL_CLOSE,
SQL_RESET_PARAMS,
SQL_NEED_DATA,
SQL_STILL_EXECUTING,
SQL_SUCCESS_WITH_INFO,
SQL_ROLLBACK,
#SQL_ATTR_TRACEFILE,
SQL_NO_DATA_FOUND,
SQL_OV_ODBC3_80)
from utils.logconfig import mylog, get_linenumber
if platform.system() == "Linux":
import logging
mylog.setLevel(logging.DEBUG)
from sqlcodes import (
SQL_RC_E1032,
SQL_RC_E30081,
SQL_RC_E30082,
SQL_RC_E1031,
SQL_RC_E1639,
SQL_RC_E1042,
SQLE_RC_START_STOP_IN_PROG
)
import sqlcodes
NULL = 0
str_sql_dict = {
'SQL_UNKNOWN_TYPE' : SQL_UNKNOWN_TYPE,
'SQL_CHAR' : SQL_CHAR,
'SQL_NUMERIC' : SQL_NUMERIC,
'SQL_DECIMAL' : SQL_DECIMAL,
'SQL_INTEGER' : SQL_INTEGER,
'SQL_SMALLINT' : SQL_SMALLINT,
'SQL_FLOAT' : SQL_FLOAT,
'SQL_REAL' : SQL_REAL,
'SQL_DOUBLE' : SQL_DOUBLE,
'SQL_DATETIME' : SQL_DATETIME,
'SQL_VARCHAR' : SQL_VARCHAR,
'SQL_BOOLEAN' : SQL_BOOLEAN,
'SQL_ROW' : SQL_ROW,
'SQL_WCHAR' : SQL_WCHAR,
'SQL_WVARCHAR' : SQL_WVARCHAR,
'SQL_WLONGVARCHAR' : SQL_WLONGVARCHAR,
'SQL_DECFLOAT' : SQL_DECFLOAT,
# One-parameter shortcuts for date/time data types
'SQL_TYPE_DATE' : SQL_TYPE_DATE,
'SQL_TYPE_TIME' : SQL_TYPE_TIME,
'SQL_TYPE_TIMESTAMP' : SQL_TYPE_TIMESTAMP,
# SQL Datatype for Time Zone
'SQL_TYPE_TIMESTAMP_WITH_TIMEZONE' : SQL_TYPE_TIMESTAMP_WITH_TIMEZONE,
'SQL_C_DEFAULT' : SQL_C_DEFAULT,
'SQL_BIGINT' : SQL_BIGINT,
'SQL_GRAPHIC' : SQL_GRAPHIC,
'SQL_VARGRAPHIC' : SQL_VARGRAPHIC,
'SQL_LONGVARGRAPHIC' : SQL_LONGVARGRAPHIC,
'SQL_BLOB' : SQL_BLOB,
'SQL_CLOB' : SQL_CLOB,
'SQL_DBCLOB' : SQL_DBCLOB,
'SQL_XML' : SQL_XML,
'SQL_CURSORHANDLE' : SQL_CURSORHANDLE,
'SQL_DATALINK' : SQL_DATALINK,
'SQL_USER_DEFINED_TYPE' : SQL_USER_DEFINED_TYPE,
# SQL extended datatypes
'SQL_DATE' : SQL_DATE,
'SQL_INTERVAL' : SQL_INTERVAL,
'SQL_TIME' : SQL_TIME,
'SQL_TIMESTAMP' : SQL_TIMESTAMP,
'SQL_LONGVARCHAR' : SQL_LONGVARCHAR,
'SQL_BINARY' : SQL_BINARY,
'SQL_VARBINARY' : SQL_VARBINARY,
'SQL_LONGVARBINARY' : SQL_LONGVARBINARY,
'SQL_TINYINT' : SQL_TINYINT,
'SQL_BIT' : SQL_BIT,
'SQL_GUID' : SQL_GUID
}
if sys.version_info[0] < 3: # 2.7
str_sql_dict_reversed = {v: k for k, v in str_sql_dict.iteritems()}
else:
str_sql_dict_reversed = {v: k for k, v in str_sql_dict.items()}
class Db2_Cli(object):
"""common class to do error checking and CLI Init, CLI Term
Attributes
----------
my_dict : :class:`collections.defaultdict`
hold conn.ini variables
"""
myNull = c_void_p(None)
my_dict = set_users()
print_str = True
MODULE_NAME = __name__
DB2_SVC_NAME = my_dict['DB2_SVC_NAME']
def __init__(self, verbose=False):
self.verbose = verbose
self.LOGARCHMETH1 = ""
self.connected = False
self.DB2_NOT_STARTED = False
self.describe_cols = []
self.db2_loaddlls(verbose)
if self.verbose:
mylog.info("""
DB2_USER '%s'
DB2_PASSWORD '%s'
DB2_DATABASE '%s'
DB2_PORT '%s'
DB2_ALIAS '%s'
DB2_INSTANCE '%s'
DB2_PROTOCOL '%s'
""" % (
self.my_dict['DB2_USER'],
self.my_dict['DB2_PASSWORD'],
self.my_dict['DB2_DATABASE'],
self.my_dict['DB2_PORT'],
self.my_dict['DB2_ALIAS'],
self.my_dict['DB2_INSTANCE'],
self.my_dict['DB2_PROTOCOL']))
self.clirc = SQL_SUCCESS
self.rc = c_int(0)
self.henv = c_void_p(None) # environment handle
self.hdbc = c_void_p(None) # communication handle
self.hstmt = c_void_p(None) # statement handle
self.user = c_char_p(self.encode_utf8(self.my_dict['DB2_USER']))
self.pswd = c_char_p(self.encode_utf8(self.my_dict['DB2_PASSWORD']))
self.dbAlias = c_char_p(self.encode_utf8(self.my_dict['DB2_DATABASE'])) #this is like a DSN
self.dbRealAlias = c_char_p(self.encode_utf8(self.my_dict['DB2_ALIAS'])) # this is the database
self.nodeName = c_char_p(self.encode_utf8(self.my_dict['DB2_INSTANCE']))
self.set_conn_str()
def set_conn_str(self):
self.conn_options_autocommit_off = { ibm_db.SQL_ATTR_AUTOCOMMIT : SQL_AUTOCOMMIT_OFF }
self.conn_str = """DRIVER={IBM DB2 ODBC DRIVER};
Database=%s;
Protocol=IPC;
UID=%s;
PWD=%s;
Instance=%s;
ServiceName=%s;
SaveFile=odbc_db2.ini;
Authentication=CLIENT;
DIAGLEVEL=4;
DateTimeStringFormat=USA;
CurrentSchema=%s;
ProgramName=%s;
ProgramID=%s;
ClientUserID=%s;
ClientApplName=%s""" % (
self.my_dict['DB2_DATABASE'],
self.my_dict['DB2_USER'],
self.my_dict['DB2_PASSWORD'],
self.my_dict['DB2_INSTANCE'],
self.my_dict['DB2_SVC_NAME'],
self.my_dict['DB2_USER'],
self.MODULE_NAME,
"Program_id_%s" % self.MODULE_NAME,
"ClientUserID_JuanaBacallao",
"ClientApplName_Python")
if platform.system() == "Windows":
self.conn_str = """DRIVER={IBM DB2 ODBC DRIVER};DSN=%s""" % self.my_dict['DB2_DATABASE']
#self.conn_str = """DSN=%s""" % self.DB2_DATABASE
self.conn_str = """%s""" % self.my_dict['DB2_DATABASE']
#PROTO=TCPIP;
self.conn_str = """UID=%s;PWD=%s;DATABASE=%s;DBALIAS=%s;HOSTNAME=%s;PORT=%s;PROTOCOL=%s;PROGRAMNAME=%s;PROGRAMID=%s;CLIENTAPPLNAME=%s;CLIENTUSERID=%s;CONNECTTIMEOUT=10;""" % (
self.my_dict['DB2_USER'],
self.my_dict['DB2_PASSWORD'],
self.my_dict['DB2_DATABASE'],
self.my_dict['DB2_ALIAS'],
self.my_dict['DB2_HOSTADDR'],
self.my_dict['DB2_PORT'],
self.my_dict['DB2_PROTOCOL'],
"Python_ibm_db_test",
"ProgramId_ibm_db_test",
"Client_ibm_db_test",
"ClientUserID_ibm_db_test")
'''
I cant as it will use the OS user currently running and sometimes this user doesnt have DATABASE rights
is better to use DB2_USER
self.conn_str = """DATABASE=%s;INSTANCE=%s;PROTOCOL=IPC;ProgramName=%s;ProgramID=%s;ClientApplName=%s;ClientUserID=%s""" % (
self.encode_utf8(self.DB2_DATABASE),
self.encode_utf8(self.DB2_INSTANCE),
"Python_ibm_db_test",
"ProgramId_ibm_db_test",
"Client_ibm_db_test",
"ClientUserID_ibm_db_test")
'''
elif platform.system() == "Linux":
self.conn_str = """UID=%s;PWD=%s;DATABASE=%s;HOSTNAME=%s;PORT=%s;PROGRAMNAME=%s;PROGRAMID=%s;CLIENTAPPLNAME=%s;CLIENTUSERID=%s""" % (
self.my_dict['DB2_USER'],
self.my_dict['DB2_PASSWORD'],
self.my_dict['DB2_DATABASE'],
self.my_dict['DB2_HOSTADDR'],
self.my_dict['DB2_PORT'],
"Python_ibm_db_test",
"ProgramId_ibm_db_test",
"Client_ibm_db_test",
"ClientUserID_ibm_db_test")
else:
#DATABASE=name;HOSTNAME=host;PORT=60000;PROTOCOL=TCPIP;UID=username;
# PWD=password;
self.conn_str = "DSN=SAMPLE"
self.conn_str = """DATABASE=%s;PROTOCOL=TCPIP;INSTANCE=%s;PORT=50000;HOSTNAME=localhost;UID=%s;PWD=%s;PROGRAMNAME=%s;PROGRAMID=%s;CLIENTAPPLNAME=%s;CLIENTUSERID=%s;CONNECTTIMEOUT=10;""" % (
self.my_dict['DB2_DATABASE'],
self.my_dict['DB2_USER'].upper(),
self.my_dict['DB2_USER'],
self.my_dict['DB2_PASSWORD'],
"Python_ibm_db_test",
"ProgramId_ibm_db_test",
"Client_ibm_db_test",
"ClientUserID_ibm_db_test")
#mylog.info("conn_str %s" % self.conn_str)
#self.conn_str = """DSN=%s""" % self.DB2_DATABASE
#self.conn_str = """%s""" % self.DB2_DATABASE
'''
Instance = instance name
Usage notes:
This can be set in the [Data Source] section of the db2cli.ini file for the given data source, or in a connection string.
When you set this keyword, you must also set the following options:
Database=SAMPLE
Protocol=IPC
'''
if self.print_str and self.verbose:
self.print_conn_str()
self.print_str = False
def encode_utf8(self, s):
if sys.version_info > (3,):
#mylog.info("type %s" % type(s))
if isinstance(s, bytes):
return s.decode('utf-8', 'ignore')
else:
return s.encode('utf-8', 'ignore')
else:
return s
def print_conn_str(self):
my_conn_str_list = self.conn_str.split(";")
cont = 0
mylog.info("conn_str\n%s" % pprint.pformat(my_conn_str_list))
for param in my_conn_str_list:
param = param.replace("\n", "")
param = param.lstrip()
#print param
my_conn_str_list[cont] = self.encode_utf8(param)
cont += 1
if not sys.version_info > (3,):
return
mylog.info("conn_str encoded encode_utf8\n%s" % pprint.pformat(my_conn_str_list))
def db2_load_dylib(self, library):
"""
Parameters
----------
library : :obj:`str`
Returns
-------
:class:`ctypes.CDLL`
:obj:`str`
"""
try:
invalid_handle = long(0xfffffffffffffffe)
if find_library(library) is not None:
mylog.debug("library '%-16s' find_library '%s'" % (library, find_library(library)))
var = cdll.LoadLibrary(find_library(library))
else:
mylog.debug("library '%-16s'" % library)
var = cdll.LoadLibrary(library)
if var._name is not None:
if self.verbose:
mylog.debug ("library '%-16s' _handle : 0x%-12s _name : %-45s __module__ :%-12s\n" % (
library,
hex(var._handle),
var._name,
var.__module__))
return var
if var._handle == invalid_handle:
_head, tail = os.path.split(library)
#mylog.info(head,tail)
new_location = os.path.join("/Applications/dsdriver/lib/", tail)
mylog.info(new_location)
var = cdll.LoadLibrary(find_library(tail))
hex_handle = hex(var._handle)
mylog.info("_name '%s'" % var._name)
mylog.info("__module__ '%s'" % var.__module__)
mylog.info("_handle '0x%s'" % hex_handle)
return var
except OSError as e:
mylog.error("OSError '%s'" % e)
return None
except TypeError as e:
mylog.error("TypeError '%s'" % e)
return None
return None
def db2_loaddlls(self, verbose=False):
"""load the db2 odbc driver/library,the db2 oci library into memory and the libc library"""
if self.verbose:
mylog.info("platform.system() : '%s' " % platform.system())
self.libcli64 = None
if platform.system() == "Windows":
if self.verbose:
mylog.debug("find_library('db2app64.dll') %s" % find_library('db2app64.dll')) #db2 odbc
mylog.debug("find_library('db2ci64.dll') %s" % find_library('db2ci64.dll')) #db2 oci (oracle)functions
try:
self.libcli64 = cdll.LoadLibrary(find_library('db2app64.dll'))
except OSError as e:
mylog.error("OSError '%s'" % e)
try:
self.libci64 = cdll.LoadLibrary(find_library('db2ci64.dll'))
except OSError as e:
mylog.error("OSError '%s'" % e)
self.libc = cdll.msvcrt
if verbose:
mylog.info("""
libcli64 %-40s handle 0x%x
lbdbci64 %-40s handle 0x%x
libc %-40s handle 0x%x
""" % (self.libcli64._name, self.libcli64._handle,
self.libci64._name, self.libci64._handle,
self.libc._name, self.libc._handle,))
elif platform.system() == "Darwin":
#export DYLD_LIBRARY_PATH="/Users/mac/sqllib/lib64"
self.libdb2 = self.db2_load_dylib('libdb2.dylib')
self.libci64 = self.db2_load_dylib('libdb2ci.dylib')
if self.libci64._name is None:
mylog.warn("libci64 is None trying libdb2clixml4c.dylib")
self.libci64 = self.db2_load_dylib('libdb2clixml4c.dylib')
mylog.error("libci64 is %s " % self.libci64 )
self.libc = self.db2_load_dylib('libc.dylib')
if verbose:
mylog.info("""
libdb2 %-40s handle 0x%x
lbdbci64 %-40s handle 0x%x
libc %-40s handle 0x%x
""" % (self.libdb2._name, self.libdb2._handle,
self.libci64._name, self.libci64._handle,
self.libc._name, self.libc._handle,))
if self.libcli64 is None:
self.libcli64 = self.libdb2
if self.libci64._name is None:
mylog.warn("libci64._name is None")
sys.exit(0)
else: # Linux
path_ = ""
libdb2_path = ibm_db.__file__
home = os.getenv("HOME", "")
libpath = os.path.join(home, "sqllib")
libpath = os.path.join(libpath, "lib64")
if os.path.exists(os.path.join(libpath, "libdb2.so")):
path_ = libpath
elif os.path.exists(libdb2_path) :
#path_ = "/usr/local/lib/python2.7/dist-packages/ibm_db-2.0.8-py2.7-linux-x86_64.egg/clidriver/lib"
head, _tail = os.path.split(libdb2_path)
path_ = head
#else:
# path_ = ""
path_list = ['/usr/lib/x86_64-linux-gnu', '/lib/x86_64-linux-gnu', '%s' % path_]
path_list_joined = ':'+':'.join(path_list)
LD_LIBRARY_PATH = os.environ.get("LD_LIBRARY_PATH")
cont_path = 0
if LD_LIBRARY_PATH is not None:
for path_ in path_list:
if path_ in LD_LIBRARY_PATH:
cont_path += 1
if cont_path != len(path_list): #this is to avoid adding path_list_joined over and over
os.environ["LD_LIBRARY_PATH"] += path_list_joined
else:
os.environ["LD_LIBRARY_PATH"] = path_list_joined
cont_path = 0
PATH = os.environ.get("PATH")
if PATH is not None:
for path_ in path_list:
if path_ in PATH:
cont_path += 1
if cont_path != len(path_list): #this is to avoid adding path_list_joined over and over
os.environ["PATH"] += path_list_joined
else:
os.environ["PATH"] = path_list_joined
mylog.debug("LD_LIBRARY_PATH \n'%s'" % pprint.pformat(os.environ.get("LD_LIBRARY_PATH").split(":")))
mylog.debug("PATH \n'%s'" % pprint.pformat(os.environ.get("PATH").split(":")))
self.libdb2 = self.db2_load_dylib('libdb2.so')
self.libci64 = self.db2_load_dylib('libdb2ci.so')
if self.verbose:
mylog.info("\nlibdb2 '%s'" % self.libdb2)
if self.libci64 is None:
#if self.libci64._name is None:
mylog.error("libci64 is None ")
#self.libci64 = self.db2_load_dylib('/home/jorge/sqllib/lib64/libdb2ci.so')
#mylog.error("self.libci64 is %s " % self.libci64 )
try:
if self.libdb2 is None:
self.libdb2 = cdll.LoadLibrary('%s/libdb2.so' % path_)
mylog.info("libdb2 '%s'" % self.libdb2)
except OSError as e:
mylog.error ("OSError '%s'" % e)
try:
self.libci64 = cdll.LoadLibrary('libdb2ci.so')
except OSError as e:
mylog.error ("OSError '%s'" % e)
if self.verbose:
if self.libdb2 is not None:
mylog.info("\nlibdb2 '%s' _handle 0x%x" % (self.libdb2 ,self.libdb2._handle))
if self.libci64 is not None:
mylog.info("\nlibci64 '%s' _handle 0x%x" % (self.libci64,self.libci64._handle))
if self.libci64 is not None and self.libdb2 is not None:
mylog.info("\nlibdb2._name '%s'\nlibci64._name '%s'\n" % (self.libdb2._name,self.libci64._name))
self.libc = CDLL('libc.so.6')
if self.verbose:
mylog.info("\nlibc %s libc handle 0x%x _name '%s'\n" % (
self.libc,
self.libc._handle,
self.libc._name))
if self.libc._name is None:
self.libc = self.db2_load_dylib('/lib/x86_64-linux-gnu/libc.so')
mylog.info("\nlibc '%s'" % (self.libc))
if self.libcli64 is None: # Linux doesnt have libdb2cli.so, they have libdb2.so
if self.verbose:
mylog.warn("\nlibcli64 is None using libdb2 '%s'", self.libdb2)
self.libcli64 = self.libdb2
if self.libci64 is None:
mylog.info("self.libci64 is None")
else:
if self.libci64._name is None:
mylog.info("self.libci64._name is None")
# sys.exit(0)
def HandleInfoPrint(self,
htype, # handle type identifier
hndl, # handle used by the CLI function
clirc, # return code of the CLI function
lineno,
funcname=None,
_file=None):
"""
Parameters
----------
htype : , # handle type identifier
hndl : , # handle used by the CLI function
clirc : , # return code of the CLI function
lineno : :obj:`int`
funcname : :obj:`str`
_file
"""
rc = 0
if _file is None:
_file = sys.modules[__name__]
if hasattr(_file, "__file__"):
file_name = _file.__file__
else:
file_name = _file
err_dict = {SQL_SUCCESS_WITH_INFO: "SQL_SUCCESS_WITH_INFO",
SQL_STILL_EXECUTING : "SQL_STILL_EXECUTING",
SQL_NEED_DATA : "SQL_NEED_DATA",
SQL_NO_DATA_FOUND : "SQL_NO_DATA_FOUND"}
if clirc == SQL_SUCCESS:
pass
elif clirc == SQL_INVALID_HANDLE:
mylog.error("""
-CLI INVALID HANDLE-----
clirc %d
line %d
funcname '%s'
file '%s'""" %
(clirc,
lineno,
funcname,
file_name))
rc = 1
elif clirc == SQL_ERROR:
if self.verbose:
mylog.error("""
--CLI ERROR----SQL_ERROR-------
clirc '%s'
line '%s'
funcname '%s'
file '%s'
""" % (clirc, lineno, funcname, file_name))
return self.HandleDiagnosticsPrint(htype, hndl)
elif clirc in err_dict.keys():
mylog.warning (err_dict[clirc])
return self.HandleDiagnosticsPrint(htype, hndl)
else:
mylog.error("""
--default----------------
clirc %s line %d function_name '%s' file '%s'
""" % (clirc, lineno, funcname, _file))
rc = 3
return rc
def ENV_HANDLE_CHECK(self, henv, clirc, funcname=None ):
"""
Parameters
----------
henv : :class:`ctypes.c_void_p`
clirc : :obj:`Int`
funcname : :obj:`str`
"""
if clirc:
mylog.info("ENV_HANDLE_CHECK error %d '%s'" % (clirc, funcname))
frame = sys._getframe()
_file = frame.f_back.f_code.co_filename
lineno = frame.f_back.f_lineno
if clirc != SQL_SUCCESS:
rc = self.HandleInfoPrint(SQL_HANDLE_ENV,
henv,
clirc,
lineno,
funcname,
_file)
if rc:
return rc
return 0
def SQLGetInf_Int(self, hdbc, param, dbInfoBuf_Int):
"""Uses SQLGetInfo returns general information about the driver and data source
associated with a connection.
Parameters
----------
hdbc : :class:`ctypes.c_void_p`
param : :obj:`Int`
dbInfoBuf_Int : :class:`ctypes.c_int`
"""
self.outlen = c_int(0)
clirc = self.libcli64.SQLGetInfo(hdbc,
param,
byref(dbInfoBuf_Int),
sizeof(dbInfoBuf_Int),
byref(self.outlen))
self.DBC_HANDLE_CHECK(hdbc, clirc, "SQLGetInfo")
return self.outlen
def describe_parameters(self, hstmt):
"""this function uses SQLDescribeParam to describe the cursor parameters
SQLNumParams
Parameters
----------
hstmt : either :class:`ctypes.c_void_p` or :class:`ibm_db.IBM_DBStatement`
"""
if isinstance(hstmt, ibm_db.IBM_DBStatement):
my_hstmt = spclient_python.python_get_stmt_handle_ibm_db(hstmt, mylog.info)
else:
my_hstmt = hstmt
self.NOC = c_short()
rc = self.libcli64.SQLNumParams(my_hstmt, byref(self.NOC))
if self.NOC.value == 0:
mylog.warn("SQLNumParams = '%d'" % self.NOC.value)
return
self.STMT_HANDLE_CHECK(my_hstmt, self.hdbc, rc, "SQLNumParams")
mylog.debug("SQLNumParams '%s'" % self.NOC)
table = Texttable()
table.set_deco(Texttable.HEADER)
table.set_cols_dtype(['t',
't',
't',
't',
't',
't'])
table.set_cols_align( ['l', 'r', 'l', 'r', 'r', 'l'])
table.set_header_align(['l', 'r', 'l', 'r', 'r', 'l'])
table.header(["no",
"pfSqlType",
"sql type",
"pibScale",
"pcbColDef",
"pfNullable"])
table.set_cols_width([4, 10, 20, 10, 10, 10])
rc = 0
column_count = 0
while column_count < self.NOC.value : #rc == SQL_SUCCESS or rc == SQL_SUCCESS_WITH_INFO:
column_count += 1
#mylog.info("column %d" % column_count )
rc = self.describe_parameter(my_hstmt, column_count, table)
mylog.info("\n\n%s\n" % table.draw())
def describe_parameter(self, hstmt, col, table):
'''
Parameters
----------
hstmt : :class:`ctypes.c_void_p` statement handle
col : :obj:`int` column position on the table
table : :class:`texttable.TextTable`
SQLRETURN SQLDescribeParam (SQLHSTMT hstmt,
SQLUSMALLINT ipar,
SQLSMALLINT FAR *pfSqlType,
SQLULEN FAR *pcbColDef,
SQLSMALLINT FAR *pibScale,
SQLSMALLINT FAR *pfNullable);
'''
pfSqlType = c_int16(0)
pcbColDef = c_int(0)
pibScale = c_int16(0)
pfNullable = c_int16(0)
#pValuePtr = c_int(0)
#mylog.debug("column name size %d" % sizeof(column_name)) #yes is 100
rc4 = self.libcli64.SQLDescribeParam(hstmt,
col,
byref(pfSqlType),
byref(pcbColDef),
byref(pibScale),
byref(pfNullable))
self.STMT_HANDLE_CHECK(hstmt, self.hdbc, rc4, "SQLDescribeParam")
#rc5 = self.libcli64.SQLGetStmtAttr(hstmt,
# SQL_ATTR_PARAMSET_SIZE,
# byref(pValuePtr),
# 4,
# 0)
#self.STMT_HANDLE_CHECK(hstmt, self.hdbc, rc5, "SQLGetStmtAttr")
#mylog.info("pValuePtr %s" % pValuePtr)
str_sql_type = ""
for key in str_sql_dict.keys():
#if pfSqlType.value in str_sql_list.values() and\
if pfSqlType.value == str_sql_dict[key]:
str_sql_type = key
break
#print key,my_dict[key]
if rc4 == SQL_SUCCESS or rc4 == SQL_SUCCESS_WITH_INFO:
my_row = [col,
pfSqlType.value,
str_sql_type,
pibScale.value,
"{:,}".format(pcbColDef.value),
pfNullable.value]
table.add_row(my_row)
return rc4
def set_sql_types_ibm_db(self):
"""this function is not being used (deprecated) as I can get the stmt handle now by
spclient_python.python_get_stmt_handle_ibm_db
"""
self.ibm_db_conversion = {#"INT" : SQL_SMALLINT,
"INT" : SQL_INTEGER,
"BIGINT" : SQL_BIGINT,
"DBCLOB" : SQL_DBCLOB,
"BLOB" : SQL_BLOB,
"CLOB" : SQL_CLOB,
"XML" : SQL_XML,
"DATE" : SQL_TYPE_DATE,
"TIME" : SQL_TYPE_TIME,
"TIMESTAMP" : SQL_TYPE_TIMESTAMP,
"DECIMAL" : SQL_DECIMAL,
"REAL" : SQL_REAL}
"""
case SQL_SMALLINT:
case SQL_INTEGER:
str_val = "int";
break;
case SQL_BIGINT:
str_val = "bigint";
break;
case SQL_REAL:
case SQL_FLOAT:
case SQL_DOUBLE:
case SQL_DECFLOAT:
str_val = "real";
break;
case SQL_DECIMAL:
case SQL_NUMERIC:
str_val = "decimal";
break;
case SQL_CLOB:
str_val = "clob";
break;
case SQL_DBCLOB:
str_val = "dbclob";
break;
case SQL_BLOB:
str_val = "blob";
break;
case SQL_XML:
str_val = "xml";
break;
case SQL_TYPE_DATE:
str_val = "date";
break;
case SQL_TYPE_TIME:
str_val = "time";
break;
case SQL_TYPE_TIMESTAMP:
str_val = "timestamp";
break;
default:
str_val = "string";
"""
#SQL_CHAR
def set_table_describe_col(self):
table = Texttable()
table.set_deco(Texttable.HEADER)
table.set_header_align(['l','l', 'l', 'r', 'l','r', 'r', 'r'])
table.set_cols_dtype(['t',
't',
't',
't',
't',
't',
't',
't'])
table.set_cols_align(['l', 'l', 'l', 'r', 'l', 'r', 'r', 'r'])
table.header(["no",
"name",
"size",
"pfSqlType",
"sql type",
"pibScale",
"pcbColDef",
"pfNullable"])
table.set_cols_width([4, 50, 10, 10, 20, 10, 10, 10])
return table
def describe_column_by_libcli64(self, hstmt, col, table):
'''
Parameters
----------
hstmt : :class:`ctypes.c_void_p` statement handle
col : :obj:`int` column position on the table
table : :class:`texttable.TextTable`
SQLRETURN SQLDescribeCol ( SQLHSTMT hstmt,
SQLUSMALLINT icol,
SQLCHAR FAR *szColName,
SQLSMALLINT cbColNameMax,
SQLSMALLINT FAR *pcbColName,
SQLSMALLINT FAR *pfSqlType,
SQLULEN FAR *pcbColDef,
SQLSMALLINT FAR *pibScale,
SQLSMALLINT FAR *pfNullable);
'''
#mylog.debug("describe_column")
column_name = create_string_buffer(250)
column_name_size = c_int8(0)
pfSqlType = c_int16(0)
pcbColDef = c_int(0)
pibScale = c_int16(0)
pfNullable = c_int16(0)
#mylog.debug("column name size %d" % sizeof(column_name)) #yes is 100
rc4 = self.libcli64.SQLDescribeCol(hstmt,
col,
byref(column_name),
sizeof(column_name),
byref(column_name_size),
byref(pfSqlType),
byref(pcbColDef),
byref(pibScale),
byref(pfNullable))
# we do get an error here invalid column count on the last+1 column
self.STMT_HANDLE_CHECK(hstmt, self.hdbc, rc4, "SQLDescribeCol")
str_sql_type = ""
#my_dict = sys.modules[__name__].__dict__
for key in str_sql_dict.keys():
#if pfSqlType.value in str_sql_list.values() and\
if pfSqlType.value == str_sql_dict[key]:
str_sql_type = key
break
#print key,my_dict[key]
if rc4 == SQL_SUCCESS or rc4 == SQL_SUCCESS_WITH_INFO:
if len(column_name.value) > self.max_column_name_size:
self.max_column_name_size = len(column_name.value)
some_dic = {'name' : column_name.value,
'sql_type' : str_sql_type,
'name_size' : column_name_size.value,
'pcbColDef' : pcbColDef.value
}
self.describe_cols.append(some_dic)
my_row = [col,
column_name.value,
column_name_size.value,
pfSqlType.value,
str_sql_type,
pibScale.value,
pcbColDef.value,
pfNullable.value]
table.add_row(my_row)
return rc4
def describe_column_by_ibm_db(self, hstmt, column_index, table):
"""
Parameters
----------
hstmt : :class:`ibm_db.IBM_DBStatement`
column_index : :obj:`int` column position on the table
table : :class:`texttable.TextTable`
"""
field_name = ibm_db.field_name(hstmt, column_index)
field_type = ibm_db.field_type(hstmt, column_index)
field_display_size = ibm_db.field_display_size(hstmt, column_index)
field_type = field_type.upper()
field_scale = ibm_db.field_scale(hstmt, column_index)
field_width = ibm_db.field_width(hstmt, column_index)
field_name_len = len(field_name)
if field_name_len > self.max_column_name_size:
self.max_column_name_size = field_name_len
#str_sql_type = ""
#for key in str_sql_dict.keys():
# if field_type == str_sql_dict[key]:
# str_sql_type = key
# break
some_dic = {'name' : field_name,
'sql_type' : field_type,
'name_size' : field_name_len,
'pcbColDef' : field_width
}
self.describe_cols.append(some_dic)
my_row = [column_index,
field_name,
field_name_len,
"?",
field_type,
field_scale,
field_display_size,
"?"]