def create_page(
processor,
parent_asset,
document,
pdf_orig_path,
position ):
""" Convert the given PDF file (representing a s single page) to a
JPEG and a thumbnail.
"""
# Stuff we'll need later
page = operations.create_page(document, position)
base_name = os.path.splitext(pdf_orig_path)[0]
jpeg_path = pdf.convert(pdf_orig_path, 'jpeg')
thumb_path = '%s-thumbnail.jpeg' % base_name
# Save the converted JPEG as a thumbnail JPEG
image.save(
image.thumbnail(
image.load(jpeg_path),
settings.THUMBNAIL_SIZE),
thumb_path)
# Put the assets into the work queue
return [
# The oginal full-res page as a PDF
operations.create_asset_from_file(
owner = document.owner,
producer = processor,
asset_class = models.AssetClass.PAGE_ORIGINAL,
file_name = pdf_orig_path,
related_page = page,
parent = parent_asset,
child_number = page.position,
mime_type = models.MimeType.PDF ),
# The full-res page as a JPEG
operations.create_asset_from_file(
owner = document.owner,
producer = processor,
asset_class = models.AssetClass.PAGE_IMAGE,
file_name = jpeg_path,
related_page = page,
parent = parent_asset,
child_number = page.position,
mime_type = models.MimeType.JPEG ),
# The thumbnail as a JPEG
operations.create_asset_from_file(
owner = document.owner,
producer = processor,
asset_class = models.AssetClass.PAGE_THUMBNAIL,
file_name = thumb_path,
related_page = page,
parent = parent_asset,
child_number = page.position,
mime_type = models.MimeType.JPEG ),
]
def redo_page(
processor,
parent_asset,
tiff_original_path,
position ):
""" Re-convert the given TIFF file (representing a s single page) to a
JPEG and a thumbnail.
"""
try:
original = parent_asset.children.get(
child_number = position,
asset_class = models.AssetClass.PAGE_ORIGINAL)
image = parent_asset.get(
child_number = position,
asset_class = models.AssetClass.PAGE_IMAGE)
thumbnail = parent_asset.get(
child_number = position,
asset_class = models.AssetClass.PAGE_THUMBNAIL)
except Asset.DoesNotExist:
logging.debug("Skipping deleted page")
return
# Stuff we'll need later
base_name = os.path.splitext(tiff_original_path)[0]
rgba_path = '%s.rgba' % base_name
jpeg_path = '%s.jpeg' % base_name
thumb_path = '%s-thumbnail.jpeg' % base_name
# Convert original TIFF to RGBA
# TODO use convert instead of tiff2rgba
os.system('tiff2rgba %r %r' % (tiff_original_path, rgba_path))
# Save the original as JPEG
image.save(
image.load(rgba_path),
jpeg_path)
# Save the thumbnail as JPEG
image.save(
image.thumbnail(
image.load(rgba_path),
settings.THUMBNAIL_SIZE),
thumb_path)
# Upload the new asset files
operations.upload_asset_file( original, pdf_orig_path )
operations.upload_asset_file( image, jpeg_path )
operations.upload_asset_file( thumbnail, thumb_path )
# Put the assets into the work queue
return [ original, image, thumbnail ]
def redo_page(
processor,
parent_asset,
pdf_orig_path,
position ):
""" Re-convert the given PDF file (representing a s single page) to a
JPEG and a thumbnail.
"""
try:
asset = {
'original' : parent_asset.children.get(
child_number = position,
asset_class = models.AssetClass.PAGE_ORIGINAL),
'image' : parent_asset.get(
child_number = position,
asset_class = models.AssetClass.PAGE_IMAGE),
'thumbnail' : parent_asset.get(
child_number = position,
asset_class = models.AssetClass.PAGE_THUMBNAIL),
}
except models.Asset.DoesNotExist:
logging.debug("Skipping deleted page")
return
# Stuff we'll need later
base_name = os.path.splitext(pdf_orig_path)[0]
jpeg_path = pdf.convert(pdf_orig_path, 'jpeg')
thumb_path = '%s-thumbnail.jpeg' % base_name
# Save the re-converted JPEG as a new thumbnail JPEG
image.save(
image.thumbnail(
image.load(jpeg_path),
settings.THUMBNAIL_SIZE),
thumb_path)
# Upload the new asset files
operations.upload_asset_file( asset['original'], pdf_orig_path )
operations.upload_asset_file( asset['image'], jpeg_path )
operations.upload_asset_file( asset['thumbnail'], thumb_path )
# Put the assets into the work queue
return asset.values()
def redo_page(processor, parent_asset, tiff_original_path, position):
""" Re-convert the given TIFF file (representing a s single page) to a
JPEG and a thumbnail.
"""
try:
original = parent_asset.children.get(
child_number=position, asset_class=models.AssetClass.PAGE_ORIGINAL)
image = parent_asset.get(child_number=position,
asset_class=models.AssetClass.PAGE_IMAGE)
thumbnail = parent_asset.get(
child_number=position,
asset_class=models.AssetClass.PAGE_THUMBNAIL)
except Asset.DoesNotExist:
logging.debug("Skipping deleted page")
return
# Stuff we'll need later
base_name = os.path.splitext(tiff_original_path)[0]
rgba_path = '%s.rgba' % base_name
jpeg_path = '%s.jpeg' % base_name
thumb_path = '%s-thumbnail.jpeg' % base_name
# Convert original TIFF to RGBA
# TODO use convert instead of tiff2rgba
os.system('tiff2rgba %r %r' % (tiff_original_path, rgba_path))
# Save the original as JPEG
image.save(image.load(rgba_path), jpeg_path)
# Save the thumbnail as JPEG
image.save(image.thumbnail(image.load(rgba_path), settings.THUMBNAIL_SIZE),
thumb_path)
# Upload the new asset files
operations.upload_asset_file(original, pdf_orig_path)
operations.upload_asset_file(image, jpeg_path)
operations.upload_asset_file(thumbnail, thumb_path)
# Put the assets into the work queue
return [original, image, thumbnail]
def handle_page(processor, parent_asset, document, tiff_original_path,
position):
""" Convert the given TIFF file (representing a s single page) whose path
is given to a JPEG (via RGBA). Also create two thumbnails.
"""
# Stuff we'll need later
page = operations.create_page(document, position)
base_name = os.path.splitext(tiff_original_path)[0]
rgba_path = '%s.rgba' % base_name
jpeg_path = '%s.jpeg' % base_name
thumb_path = '%s-thumbnail.jpeg' % base_name
# Convert original TIFF to RGBA
# TODO use convert instead of tiff2rgba
os.system('tiff2rgba %r %r' % (tiff_original_path, rgba_path))
# Save the original as JPEG
image.save(image.load(rgba_path), jpeg_path)
# Save the thumbnail as JPEG
image.save(image.thumbnail(image.load(rgba_path), settings.THUMBNAIL_SIZE),
thumb_path)
# Put the assets into the work queue
return [
# The oginal full-res page as a TIFF
operations.create_asset_from_file(
owner=document.owner,
producer=processor,
asset_class=models.AssetClass.PAGE_ORIGINAL,
file_name=tiff_original_path,
related_page=page,
parent=parent_asset,
child_number=page.position,
mime_type=models.MimeType.TIFF),
# The full-res page as a JPEG
operations.create_asset_from_file(
owner=document.owner,
producer=processor,
asset_class=models.AssetClass.PAGE_IMAGE,
file_name=jpeg_path,
related_page=page,
parent=parent_asset,
child_number=page.position,
mime_type=models.MimeType.JPEG),
# The thumbnail as a JPEG
operations.create_asset_from_file(
owner=document.owner,
producer=processor,
asset_class=models.AssetClass.PAGE_THUMBNAIL,
file_name=thumb_path,
related_page=page,
parent=parent_asset,
child_number=page.position,
mime_type=models.MimeType.JPEG),
]
def handle_page(
processor,
parent_asset,
document,
tiff_original_path,
position ):
""" Convert the given TIFF file (representing a s single page) whose path
is given to a JPEG (via RGBA). Also create two thumbnails.
"""
# Stuff we'll need later
page = operations.create_page(document, position)
base_name = os.path.splitext(tiff_original_path)[0]
rgba_path = '%s.rgba' % base_name
jpeg_path = '%s.jpeg' % base_name
thumb_path = '%s-thumbnail.jpeg' % base_name
# Convert original TIFF to RGBA
# TODO use convert instead of tiff2rgba
os.system('tiff2rgba %r %r' % (tiff_original_path, rgba_path))
# Save the original as JPEG
image.save(
image.load(rgba_path),
jpeg_path)
# Save the thumbnail as JPEG
image.save(
image.thumbnail(
image.load(rgba_path),
settings.THUMBNAIL_SIZE),
thumb_path)
# Put the assets into the work queue
return [
# The oginal full-res page as a TIFF
operations.create_asset_from_file(
owner = document.owner,
producer = processor,
asset_class = models.AssetClass.PAGE_ORIGINAL,
file_name = tiff_original_path,
related_page = page,
parent = parent_asset,
child_number = page.position,
mime_type = models.MimeType.TIFF ),
# The full-res page as a JPEG
operations.create_asset_from_file(
owner = document.owner,
producer = processor,
asset_class = models.AssetClass.PAGE_IMAGE,
file_name = jpeg_path,
related_page = page,
parent = parent_asset,
child_number = page.position,
mime_type = models.MimeType.JPEG ),
# The thumbnail as a JPEG
operations.create_asset_from_file(
owner = document.owner,
producer = processor,
asset_class = models.AssetClass.PAGE_THUMBNAIL,
file_name = thumb_path,
related_page = page,
parent = parent_asset,
child_number = page.position,
mime_type = models.MimeType.JPEG ),
]
