metadata_check.py

from pyeclib.ec_iface import ECDriver
from random import shuffle

def select_without_hole(fragments, hole, k):
    available = fragments[:hole] + fragments[hole+1:]
    shuffle(available)
    return available[:k]


if __name__ == '__main__':
    driver = ECDriver(ec_type='jerasure_rs_vand', k=9, m=3)
    encoded = driver.encode('aaaaaa' * 1024)

    print len(encoded[0])

    # for i in range(10): 
    for x in range(12):
        fragments = encoded[:]
        available = select_without_hole(fragments, x, 9)
        recon = driver.reconstruct(available, [x])
        print len(recon[0])
        print driver.get_metadata(recon[0], formatted=True)