Generate Pojo with SQL server auto-gen table creation SQL code

GeneratePojo.py

import re
import fileinput

def camelCase(st):
	"""
	filter nonAlpha and nonDigit char, and camelCase the output string
	input:
		USER_DEF1
	output:
		userDef1
	"""
	output = ''.join(x for x in st.title() if x.isalpha() or x.isdigit())
	return output[0].lower() + output[1:]

def generateLine(inputLine):
	"""
	String input like:
		"	[INTERFACE_RECORD_ID] [nvarchar](25) NOT NULL,"
	output like:
		"private String interfaceRecordId;"
	"""
	words = inputLine.split()

	# dict for search types
	types = {'nvarchar': 'String', 'datetime': 'Date', 'numeric': 'BigDecimal', 'nchar': 'String' }
	words[0] = words[0].replace("[", "")
	words[0] = words[0].replace("]", "")

	for key, value in types.iteritems():
		if key in words[1]:
			print "%s %s %s%s" % ("private", value, camelCase(words[0]), ";") 

# POJO generation process, 2nd version
def generatePojo(file):
	"""
	1. use auto-gen SQL server table creation SQL like (NOTE, not full file, only part of the file, looks like the testString above)
		[INTERFACE_RECORD_ID] [nvarchar](25) NOT NULL,
		[STATUS_FLOW_NAME] [nvarchar](25) NULL,
		[warehouse] [nvarchar](25) NULL,
	2. put into the xx.txt, specify the directory input, and then run for result

	NOTE, types are limited for four types known for the current usage, check with MSDN for more data types mapping
	"""
	for line in fileinput.input(file, inplace = True):
		# Known error when there is line space, cause "IndexError: string index out of range" error
		generateLine(line)

# set the file 		
test_file = "./testfile.txt"
generatePojo(test_file)