# pylint: disable=missing-module-docstring,invalid-name
from os.path import join, basename
from pkg_resources import resource_string
import click
from ocrd import Processor
from ocrd.decorators import ocrd_cli_options, ocrd_cli_wrap_processor
from ocrd_models.ocrd_page import to_xml
from ocrd_utils import (
getLogger,
assert_file_grp_cardinality,
make_file_id,
MIME_TO_EXT,
MIMETYPE_PAGE,
parse_json_string_with_comments
)
from ocrd_modelfactory import page_from_file
OCRD_TOOL = parse_json_string_with_comments(resource_string(__name__, 'dummy/ocrd-tool.json').decode('utf8'))
[docs]class DummyProcessor(Processor):
"""
Bare-bones processor creates PAGE-XML and optionally copies file from input group to output group
"""
[docs] def process(self):
LOG = getLogger('ocrd.dummy')
assert_file_grp_cardinality(self.input_file_grp, 1)
assert_file_grp_cardinality(self.output_file_grp, 1)
copy_files = self.parameter['copy_files']
for input_file in self.input_files:
input_file = self.workspace.download_file(input_file)
file_id = make_file_id(input_file, self.output_file_grp)
ext = MIME_TO_EXT.get(input_file.mimetype, '')
local_filename = join(self.output_file_grp, file_id + ext)
pcgts = page_from_file(self.workspace.download_file(input_file))
pcgts.set_pcGtsId(file_id)
self.add_metadata(pcgts)
if input_file.mimetype == MIMETYPE_PAGE:
LOG.info("cp %s %s # %s -> %s", input_file.url, local_filename, input_file.ID, file_id)
# Source file is PAGE-XML: Write out in-memory PcGtsType
self.workspace.add_file(
file_id=file_id,
file_grp=self.output_file_grp,
page_id=input_file.pageId,
mimetype=input_file.mimetype,
local_filename=local_filename,
content=to_xml(pcgts).encode('utf-8'))
else:
# Source file is not PAGE-XML: Copy byte-by-byte unless copy_files is False
if not copy_files:
LOG.info("Not copying %s because it is not a PAGE-XML file and copy_files was false" % input_file.local_filename)
else:
LOG.info("cp %s %s # %s -> %s", input_file.url, local_filename, input_file.ID, file_id)
with open(input_file.local_filename, 'rb') as f:
content = f.read()
self.workspace.add_file(
ID=file_id,
file_grp=self.output_file_grp,
pageId=input_file.pageId,
mimetype=input_file.mimetype,
local_filename=local_filename,
content=content)
if input_file.mimetype.startswith('image/'):
# write out the PAGE-XML representation for this image
page_file_id = file_id + '_PAGE'
pcgts.set_pcGtsId(page_file_id)
pcgts.get_Page().set_imageFilename(local_filename if copy_files else input_file.local_filename)
page_filename = join(self.output_file_grp, file_id + '.xml')
LOG.info("Add PAGE-XML %s generated for %s at %s", page_file_id, file_id, page_filename)
self.workspace.add_file(
file_id=page_file_id,
file_grp=self.output_file_grp,
page_id=input_file.pageId,
mimetype=MIMETYPE_PAGE,
local_filename=page_filename,
content=to_xml(pcgts).encode('utf-8'))
def __init__(self, *args, **kwargs):
kwargs['ocrd_tool'] = OCRD_TOOL
kwargs['version'] = '0.0.3'
super(DummyProcessor, self).__init__(*args, **kwargs)
@click.command()
@ocrd_cli_options
def cli(*args, **kwargs):
return ocrd_cli_wrap_processor(DummyProcessor, *args, **kwargs)
