oxdbarchive/oxdbarchive/cache.py

# -*- Mode: Python; -*-
# -*- coding: utf-8 -*-
# vi:si:et:sw=2:sts=2:ts=2

import os
from os.path import abspath, exists, join, dirname, basename
import shutil
from glob import glob

import Image
from StringIO import StringIO

from scrapeit.utils import read_url

cache_root = join(dirname(abspath(__file__)), 'cache')
img_extension = "jpg"

frame_cache_root = join(cache_root, 'frame')

def loadFile(f_name):
  f = open(f_name)
  data = f.read()
  f.close()
  return data

def saveFile(f_name, data):
  f = open(f_name, 'w')
  f.write(data)
  f.close()

def loadStaticFile(fname):
  return loadFile(join(dirname(abspath(__file__)), "static", fname))

def loadFrame(afile, position):
  position = basename(position).replace(':', '.')
  frame = join(afile.frameFolder, '%s.%s' % (position, img_extension))
  if not exists(frame):
    afile.extractFrame(position)
  if exists(frame):
    return loadFile(frame)
  return ''

def loadClip(afile, position):
  position = basename(position).replace(':', '.')
  flash = join(afile.frameFolder, '%s.%s' % (position, 'flv'))
  if not exists(flash):
    afile.extractClip(position)
  if exists(flash):
    return loadFile(flash)
  return ''

def loadTimeline(afile):
  timeline = afile.timelineFile
  if not exists(timeline):
    afile.extractTimeline()
  if exists(timeline):
    return loadFile(timeline)
  return ''