def append_tar_media_xml_element(doc, filepath, domain, media_id):
mediaElement = doc.createElement(domain)
mediaElement.setAttribute('_id', media_id)
mediaElement.setAttribute('md5', ltoUtil.get_md5_hash(filepath))
mediaElement.setAttribute('size', str(ltoUtil.get_filesize(filepath)))
mediaElement.setAttribute('filename', ltoUtil.get_filename(filepath))
doc.documentElement.appendChild(mediaElement)
par2TarElement = doc.createElement('par2Tar')
par2TarElement.setAttribute('md5', ltoUtil.get_md5_hash(filepath+'.par2.tar'))
par2TarElement.setAttribute('size', str(ltoUtil.get_filesize(filepath+'.par2.tar')))
par2TarElement.setAttribute('filename', ltoUtil.get_filename(filepath)+'.par2.tar')
mediaElement.appendChild(par2TarElement)
def restore_media_items(config, domain, vectors):
tape = ltoUtil.get_tape_device(config)
restore_dir = ltoUtil.get_restore_dir(config)
bs = int(ltoUtil.get_blocksize(config))
blocking_factor = bs/512
setup_done = False
prev_tape_id = ""
for v in vectors:
tape_id = v[0]
offset = v[1]
filesize = v[2]
record_offset = v[3]
filename = v[4]
md5 = v[5]
blocks = int(filesize/bs)+2
trim = (record_offset*512)%bs
if not prev_tape_id == tape_id:
raw_input('Insert tape: '+tape_id+' [Press Enter to continue]')
if not setup_done:
ltoWriteUtil.setup_tape_drive(config)
setup_done = True
print '\nSeeking to tape block: '+str(offset)
p = subprocess.Popen('mt -f '+tape+' seek '+str(offset), shell=True)
sts = os.waitpid(p.pid, 0)
print 'Restoring file: '+filename
p = subprocess.Popen('dd if='+tape+' bs='+str(bs)+' count='+str(blocks)+' | dd bs='+str(trim)+' skip=1 | tar -x -C '+restore_dir+' '+filename+' --occurrence', shell=True, stderr=subprocess.PIPE)
sts = os.waitpid(p.pid, 0)
#md5 check restored files
if md5 == ltoUtil.get_md5_hash(restore_dir+'/'+filename):
print 'Verified MD5: '+filename
else:
print 'MD5 verification failed for '+filename
#Rename files to include event metadata
extra_metadata_str = get_session_full_name(config, session_id)
filepath = restore_dir+'/'+filename
ltoUtil.move(filepath, filepath[:-4]+'_'+extra_metadata_str+'.'+ltoUtil.get_file_extn(filepath))
prev_tape_id = tape_id
print '\nAll files successfully restored to '+ltoUtil.get_restore_dir(config)
def update_tar_xml_root_attributes(config, doc, tar_name):
doc.documentElement.setAttribute('md5', ltoUtil.get_md5_hash(ltoUtil.get_tar_build_dir(config)+'/'+tar_name))
doc.documentElement.setAttribute('size', str(ltoUtil.get_filesize(ltoUtil.get_tar_build_dir(config)+'/'+tar_name)))
