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horadrimSoftware.py
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horadrimSoftware.py
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import sys
from table import Table
from logger import log
import os
args = sys.argv[1:]
inputFile = args[0]
outputFile = args[1]
inputFile = inputFile
outputFile = outputFile
inputFile = open(inputFile, "r")
outputFile = open(outputFile, "w")
lines = [line for line in inputFile ]
os.chdir("2018400051_2018400252/src")
catalog = Table("_catalog", 1,["tableName"], [str])
def parseInput(line):
command = line.split()
if len(command) == 0:
return
command_data = command[2:]
if command[1] == "type":
type_comm = command[0]
if type_comm == "create":
# Create a table
type_name = command_data[0].strip()
if catalog.tree.search(type_name):
log(line, False)
return
num_fields = int(command_data[1].strip())
primary_order = int(command_data[2].strip())
command_data = command_data[3:]
names = []
types = []
for i in range(0, len(command_data) -1, 2):
names.append(command_data[i])
type = int
if "str" in command_data[i+1]:
type = str
types.append(type)
Table(type_name, primary_order,names, types)
catalog.insert([type_name])
if type_comm == "delete":
type_name = command_data[0].strip()
if not catalog.tree.search(type_name):
log(line, False)
return
table = Table(type_name, None, None, None)
table.deleteTable()
catalog.delete(type_name)
if type_comm == "list":
res = catalog.list()
if len(res) ==0:
log(line, False)
return
for r in res:
tempStr = ""
for i in r:
tempStr += str(i) + " "
tempStr += "\n"
outputFile.write(tempStr)
if command[1] == "record":
record_comm = command[0]
if record_comm == "create":
type_name = command_data[0].strip()
command_data = command_data[1:]
if not catalog.tree.search(type_name):
log(line, False)
return
table = Table(type_name, None, None, None)
try:
for i in range(len(table.fieldTypes)):
if table.fieldTypes[i] == int:
command_data[i] = int(command_data[i])
table.insert(command_data)
except:
log(line, False)
return
if record_comm == "delete":
# Delete the record in given table if exists
type_name = command_data[0].strip()
command_data = command_data[1:]
if not catalog.tree.search(type_name):
log(line, False)
return
table = Table(type_name, None, None, None)
primaryValue = command_data[0]
try:
if table.primaryType == int:
primaryValue = int(primaryValue)
table.delete(primaryValue)
except:
log(line, False)
return
if record_comm == "update":
type_name = command_data[0].strip()
command_data = command_data[2:]
if not catalog.tree.search(type_name):
log(line, False)
return
table = Table(type_name, None, None, None)
try:
for i in range(len(table.fieldTypes)):
if table.fieldTypes[i] == int:
command_data[i] = int(command_data[i])
table.update(command_data)
except:
log(line, False)
return
if record_comm == "list":
type_name = command_data[0].strip()
command_data = command_data[1:]
if not catalog.tree.search(type_name):
log(line, False)
return
table = Table(type_name, None, None, None)
try:
result = table.list()
if len(result) ==0:
raise Exception()
for r in result:
tempStr = ""
for i in r:
tempStr += str(i) + " "
tempStr += "\n"
outputFile.write(tempStr)
except:
log(line, False)
return
if record_comm == "search":
type_name = command_data[0].strip()
command_data = command_data[1:]
if not catalog.tree.search(type_name):
log(line, False)
return
table = Table(type_name, None, None, None)
try:
primaryValue = command_data[0]
if table.primaryType == int:
primaryValue = int(primaryValue)
r = table.search(primaryValue)
if len(r) ==0:
raise Exception()
tempStr = ""
for i in r:
tempStr += str(i) + " "
tempStr += "\n"
outputFile.write(tempStr)
except:
log(line, False)
return
if record_comm == "filter":
# Filter record w.r.t the primary key
type_name = command_data[0].strip()
command_data = command_data[1:]
if not catalog.tree.search(type_name):
log(line, False)
return
table = Table(type_name, None, None, None)
try:
condition = command_data[0]
result = []
if ">" in condition:
min = condition.split(">")[-1]
if table.primaryType == int:
min = int(min)
result = table.filter(min = min)
if "<" in condition:
max = condition.split("<")[-1]
if table.primaryType == int:
max = int(max)
result = table.filter(max = max)
if "=" in condition:
max = condition.split("=")[-1]
if table.primaryType == int:
max = int(max)
result = [table.search(max)]
if len(result) ==0:
raise Exception()
for r in result:
tempStr = ""
for i in r:
tempStr += str(i) + " "
tempStr += "\n"
outputFile.write(tempStr)
except:
log(line, False)
return
log(line, True)
for line in lines:
parseInput(line.strip())
del catalog