From 0a3f525f0a2c8efbdfe55c5a27c3e8ac526662f9 Mon Sep 17 00:00:00 2001
From: kba <unixprog@gmail.com>
Date: Fri, 23 Aug 2024 18:19:28 +0200
Subject: [PATCH] port processor to core v3

---
 qurator/eynollah/processor.py | 89 +++++++++++------------------------
 requirements.txt              |  2 +-
 2 files changed, 29 insertions(+), 62 deletions(-)

diff --git a/qurator/eynollah/processor.py b/qurator/eynollah/processor.py
index 1bd190e..c8748af 100644
--- a/qurator/eynollah/processor.py
+++ b/qurator/eynollah/processor.py
@@ -1,68 +1,35 @@
-from json import loads
-from pkg_resources import resource_string
-from tempfile import NamedTemporaryFile
-from pathlib import Path
-from os.path import join
-
-from PIL import Image
-
+from typing import Optional
+from ocrd.processor.ocrd_page_result import OcrdPageResult
+from ocrd_models import OcrdPage
 from ocrd import Processor
-from ocrd_modelfactory import page_from_file, exif_from_filename
-from ocrd_models import OcrdFile, OcrdExif
-from ocrd_models.ocrd_page import to_xml
-from ocrd_utils import (
-    getLogger,
-    MIMETYPE_PAGE,
-    assert_file_grp_cardinality,
-    make_file_id
-)
 
 from .eynollah import Eynollah
-from .utils.pil_cv2 import pil2cv
-
-OCRD_TOOL = loads(resource_string(__name__, 'ocrd-tool.json').decode('utf8'))
 
 class EynollahProcessor(Processor):
 
-    def __init__(self, *args, **kwargs):
-        kwargs['ocrd_tool'] = OCRD_TOOL['tools']['ocrd-eynollah-segment']
-        kwargs['version'] = OCRD_TOOL['version']
-        super().__init__(*args, **kwargs)
+    @property
+    def metadata_location(self) -> str:
+        return 'eynollah/ocrd-tool.json'
 
-    def process(self):
-        LOG = getLogger('eynollah')
-        assert_file_grp_cardinality(self.input_file_grp, 1)
-        assert_file_grp_cardinality(self.output_file_grp, 1)
-        for n, input_file in enumerate(self.input_files):
-            page_id = input_file.pageId or input_file.ID
-            LOG.info("INPUT FILE %s (%d/%d) ", page_id, n + 1, len(self.input_files))
-            pcgts = page_from_file(self.workspace.download_file(input_file))
-            LOG.debug('width %s height %s', pcgts.get_Page().imageWidth, pcgts.get_Page().imageHeight)
-            self.add_metadata(pcgts)
-            page = pcgts.get_Page()
-            # XXX loses DPI information
-            # page_image, _, _ = self.workspace.image_from_page(page, page_id, feature_filter='binarized')
-            image_filename = self.workspace.download_file(next(self.workspace.mets.find_files(local_filename=page.imageFilename))).local_filename
-            eynollah_kwargs = {
-                'dir_models': self.resolve_resource(self.parameter['models']),
-                'allow_enhancement': False,
-                'curved_line': self.parameter['curved_line'],
-                'full_layout': self.parameter['full_layout'],
-                'allow_scaling': self.parameter['allow_scaling'],
-                'headers_off': self.parameter['headers_off'],
-                'tables': self.parameter['tables'],
-                'override_dpi': self.parameter['dpi'],
-                'logger': LOG,
-                'pcgts': pcgts,
-                'image_filename': image_filename
-                }
-            Eynollah(**eynollah_kwargs).run()
-            file_id = make_file_id(input_file, self.output_file_grp)
-            pcgts.set_pcGtsId(file_id)
-            self.workspace.add_file(
-                ID=file_id,
-                file_grp=self.output_file_grp,
-                pageId=page_id,
-                mimetype=MIMETYPE_PAGE,
-                local_filename=join(self.output_file_grp, file_id) + '.xml',
-                content=to_xml(pcgts))
+    def process_page_pcgts(self, *input_pcgts: Optional[OcrdPage], page_id: Optional[str] = None) -> OcrdPageResult:
+        assert input_pcgts
+        assert input_pcgts[0]
+        pcgts = input_pcgts[0]
+        page = pcgts.get_Page()
+        # XXX loses DPI information
+        # page_image, _, _ = self.workspace.image_from_page(page, page_id, feature_filter='binarized')
+        image_filename = self.workspace.download_file(next(self.workspace.mets.find_files(local_filename=page.imageFilename))).local_filename
+        Eynollah(
+            dir_models=self.resolve_resource(self.parameter['models']),
+            allow_enhancement=False,
+            curved_line=self.parameter['curved_line'],
+            full_layout=self.parameter['full_layout'],
+            allow_scaling=self.parameter['allow_scaling'],
+            headers_off=self.parameter['headers_off'],
+            tables=self.parameter['tables'],
+            override_dpi=self.parameter['dpi'],
+            logger=self.logger,
+            pcgts=pcgts,
+            image_filename=image_filename
+        ).run()
+        return OcrdPageResult(pcgts)
diff --git a/requirements.txt b/requirements.txt
index f01d319..feeea99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # ocrd includes opencv, numpy, shapely, click
-ocrd >= 2.23.3
+ocrd >= 3.0.0a2
 numpy <1.24.0
 scikit-learn >= 0.23.2
 tensorflow == 2.12.1