#!/usr/bin/env python

"""Manages files on Amazon S3

Usage: When running on multiple nodes it is better to have different 'heart_beat_time_secs' settings or start

the processes at different times. This helps to reduce contention by the nodes.

Run using 'python s3ingest --config ${CONF_FILE_PATH} --node ${NODE}'

Multipart upload based on https://github.com/boto/boto/blob/develop/bin/s3multiput

Requires: Python 2.7

boto 2.2.0: A Python interface to Amazon Web Services

Pyinotify 0.9.3: monitor filesystem events with Python under Linux

filechunkio 1.5

Note: pyinotify 0.9.3 mangles the native logging with its own runtime class.

The 'monitored_directory' configuration item is the local watched directory and maps to the root of the S3 bucket configured as 's3_bucket_name'

Copyright (c) 2012 Sesame Workshop

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

@author: Raymond Mauge

$Date: 2012-10-09 18:15:52 -0400 (Tue, 09 Oct 2012) $

$Revision: 77 $

"""

from Queue import Empty, Queue

from boto.exception import S3ResponseError

from boto.pyami.config import Config

from boto.s3.connection import S3Connection

from boto.s3.key import Key

from boto import utils

from filechunkio import FileChunkIO

from logging import handlers

from multiprocessing import Pool

from threading import Thread

from time import sleep

import argparse

import fcntl

import logging

import math

import os

import pyinotify

import signal

import stat

import sys

import time

import traceback

#Default filename for the config file

CONFIG_FILE = './s3ingest.conf'

access_key_id = None # needed global because multiprocessing cannot pickle certain objects

secret_access_key = None # needed global because multiprocessing cannot pickle certain objects

# Must be global to be passed around

def upload_progress_cb(bytes_so_far, total_bytes):

logging.info("{0:d} / {1:d} bytes transferred".format(bytes_so_far, total_bytes))

# Must be global to be passed around

def _upload_part(target_bucket_name, multipart_id, part_num, file_path, offset, bytes, amount_of_retries=10):

_upload()

class S3Util:

sys.exit(0)

"""Removes filepath items from a queue and begins the upload process to Amazon.

"""

class S3Uploader(Thread):

sleep(2)

"""Adds filepath items to a queue when the file/dir is fully copied to the filesystem.

"""

class S3Handler(pyinotify.ProcessEvent):

#print "\nRemoved: {0}".format(os.path.join(event.path, event.name))

def main(argv):

sys.exit(0)

if __name__ == "__main__":

main(sys.argv)