mpkocher

# Common core utils are too small that don't warrant creating a package
from argparse import ArgumentParser, Namespace, ArgumentDefaultsHelpFormatter
import csv
import functools
import logging
import sys
from typing import Callable as F
from typing import List, TypeVar, Type, Iterator

from pydantic import BaseModel

djspiewak

Thread Pools

Thread pools on the JVM should usually be divided into the following three categories:

1. CPU-bound
2. Blocking IO
3. Non-blocking IO polling

Each of these categories has a different optimal configuration and usage pattern.

mpkocher

def compose(*funcs):
    """Functional composition

    [f, g, h] will be f(g(h(x)))
    """
    def compose_two(f, g):
        def c(x):
            return f(g(x))
        return c
    return functools.reduce(compose_two, funcs)