ocrd_models.ocrd_mets.OcrdMets.remove_file() - Code Metrics - Inspection of "Clone filter" - OCR-D/core - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#582)

by Konstantin

created 2020-09-02 07:13 UTC

ocrd_models.ocrd_mets.OcrdMets.remove_file() A

↳ Parent: ocrd_models.ocrd_mets

Complexity

Conditions

Size

Total Lines	16
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	11
dl	0
loc	16
rs	9.3333
c	0
b	0
f	0
cc	5
nop	3

"""
API to METS
"""
from datetime import datetime
from re import fullmatch
from lxml import etree as ET

from ocrd_utils import is_local_filename, getLogger, VERSION, REGEX_PREFIX

from .constants import (
    NAMESPACES as NS,
    TAG_METS_AGENT,
    TAG_METS_DIV,
    TAG_METS_FILE,
    TAG_METS_FILEGRP,
    TAG_METS_FILESEC,
    TAG_METS_FPTR,
    TAG_METS_METSHDR,
    TAG_METS_STRUCTMAP,
    IDENTIFIER_PRIORITY,
    TAG_MODS_IDENTIFIER,
    METS_XML_EMPTY,
    REGEX_FILE_ID
)

from .ocrd_xml_base import OcrdXmlDocument, ET
from .ocrd_mets_filter import OcrdMetsFilter
from .ocrd_file import OcrdFile
from .ocrd_agent import OcrdAgent

log = getLogger('ocrd_models.ocrd_mets')
REGEX_PREFIX_LEN = len(REGEX_PREFIX)

class OcrdMets(OcrdXmlDocument):
    """
    API to a single METS file
    """

    @staticmethod
    def empty_mets(now=None):
        """
        Create an empty METS file from bundled template.
        """
        if not now:
            now = datetime.now().isoformat()
        tpl = METS_XML_EMPTY.decode('utf-8')
        tpl = tpl.replace('{{ VERSION }}', VERSION)
        tpl = tpl.replace('{{ NOW }}', '%s' % now)
        return OcrdMets(content=tpl.encode('utf-8'))

    def __init__(self, **kwargs):
        """

        """
        super().__init__(**kwargs)

    def __str__(self):
        """
        String representation
        """
        return 'OcrdMets[fileGrps=%s,files=%s]' % (self.file_groups, self.find_files())

    @property
    def unique_identifier(self):
        """
        Get the unique identifier by looking through ``mods:identifier``

        See `specs <https://ocr-d.github.io/mets#unique-id-for-the-document-processed>`_ for details.
        """
        for t in IDENTIFIER_PRIORITY:
            found = self.etree_find('.//mods:identifier[@type="%s"]' % t)
            if found is not None:
                return found.text

    @unique_identifier.setter
    def unique_identifier(self, purl):
        """
        Set the unique identifier by looking through ``mods:identifier``

        See `specs <https://ocr-d.github.io/mets#unique-id-for-the-document-processed>`_ for details.
        """
        id_el = None
        for t in IDENTIFIER_PRIORITY:
            id_el = self.etree_find('.//mods:identifier[@type="%s"]' % t)
            if id_el is not None:
                break
        if id_el is None:
            mods = self.etree_find('.//mods:mods')
            id_el = ET.SubElement(mods, TAG_MODS_IDENTIFIER)
            id_el.set('type', 'purl')
        id_el.text = purl

    @property
    def agents(self):
        """
        List all `OcrdAgent </../../ocrd_models/ocrd_models.ocrd_agent.html>`_
        """
        return [OcrdAgent(el_agent) for el_agent in self.etree_findall('mets:metsHdr/mets:agent')]

    def add_agent(self, *args, **kwargs):
        """
        Add an `OcrdAgent </../../ocrd_models/ocrd_models.ocrd_agent.html>`_ to the list of agents in the metsHdr.
        """
        el_metsHdr = self.etree_find('.//mets:metsHdr')
        if el_metsHdr is None:
            el_metsHdr = ET.Element(TAG_METS_METSHDR)
            self.etree_root.insert(0, el_metsHdr)
        #  assert(el_metsHdr is not None)
        el_agent = ET.SubElement(el_metsHdr, TAG_METS_AGENT)
        #  print(ET.tostring(el_metsHdr))
        return OcrdAgent(el_agent, *args, **kwargs)

    @property
    def file_groups(self):
        """
        List the ``USE`` attributes of all ``mets:fileGrp``.
        """
        return [el.get('USE') for el in self.etree_findall('.//mets:fileGrp')]

    def find_files(self, **kwargs):
        return OcrdMetsFilter(**kwargs).find_files(self)

    def add_file_group(self, fileGrp):
        """
        Add a new ``mets:fileGrp``.

        Arguments:
            fileGrp (string): ``USE`` attribute of the new filegroup.
        """
        if ',' in fileGrp:
            raise Exception('fileGrp must not contain commas')
        el_fileSec = self.etree_find('mets:fileSec')
        if el_fileSec is None:
            el_fileSec = ET.SubElement(self.etree_root, TAG_METS_FILESEC)
        el_fileGrp = el_fileSec.find('mets:fileGrp[@USE="%s"]' % fileGrp, NS)
        if el_fileGrp is None:
            el_fileGrp = ET.SubElement(el_fileSec, TAG_METS_FILEGRP)
            el_fileGrp.set('USE', fileGrp)
        return el_fileGrp

    def remove_file_group(self, USE, recursive=False):
        """
        Remove a fileGrp (fixed ``USE``) or fileGrps (regex ``USE``)

        Arguments:
            USE (string): USE attribute of the fileGrp to delete. Can be a regex if prefixed with //
            recursive (boolean): Whether to recursively delete all files in the group
        """
        el_fileSec = self.etree_find('mets:fileSec')
        if el_fileSec is None:
            raise Exception("No fileSec!")
        if isinstance(USE, str):
            if USE.startswith(REGEX_PREFIX):
                for cand in el_fileSec.findall('mets:fileGrp', NS):
                    if fullmatch(USE[REGEX_PREFIX_LEN:], cand.get('USE')):
                        self.remove_file_group(cand, recursive=recursive)
                return
            else:
                el_fileGrp = el_fileSec.find('mets:fileGrp[@USE="%s"]' % USE, NS)
        else:
            el_fileGrp = USE
        if el_fileGrp is None:   # pylint: disable=len-as-condition
            raise Exception("No such fileGrp: %s" % USE)
        files = el_fileGrp.findall('mets:file', NS)
        if files:
            if not recursive:
                raise Exception("fileGrp %s is not empty and recursive wasn't set" % USE)
            for f in files:
                self.remove_one_file(f.get('ID'))
        el_fileGrp.getparent().remove(el_fileGrp)

    def add_file(self, fileGrp, mimetype=None, url=None, ID=None, pageId=None, force=False, local_filename=None, ignore=False, **kwargs):
        """
        Add a `OcrdFile </../../ocrd_models/ocrd_models.ocrd_file.html>`_.

        Arguments:
            fileGrp (string): Add file to ``mets:fileGrp`` with this ``USE`` attribute
            mimetype (string):
            url (string):
            ID (string):
            pageId (string):
            force (boolean): Whether to add the file even if a ``mets:file`` with the same ``ID`` already exists.
            ignore (boolean): Don't look for existing files. Shift responsibility for preventing errors from duplicate ID to the user.
            local_filename (string):
            mimetype (string):
        """
        if not ID:
            raise Exception("Must set ID of the mets:file")
        if not REGEX_FILE_ID.fullmatch(ID):
            raise Exception("Invalid syntax for mets:file/@ID %s" % ID)
        el_fileGrp = self.etree_find(".//mets:fileGrp[@USE='%s']" % fileGrp)
        if el_fileGrp is None:
            el_fileGrp = self.add_file_group(fileGrp)
        if ID and not ignore and self.find_files(ID=ID) != []:
            if not force:
                raise Exception("File with ID='%s' already exists" % ID)
            mets_file = self.find_files(ID=ID)[0]
        else:
            mets_file = OcrdFile(ET.SubElement(el_fileGrp, TAG_METS_FILE), mets=self)
        mets_file.url = url
        mets_file.mimetype = mimetype
        mets_file.ID = ID
        mets_file.pageId = pageId
        mets_file.local_filename = local_filename

        return mets_file

    def remove_file(self, *args, **kwargs):
        """
        Delete all files matching the query. Same arguments as ``OcrdMets.find_files``
        """
        # XXX must be retained for backwards-compatibility
        if args:
            kwargs['ID'] = args[0]
        files = self.find_files(**kwargs)
        if files:
            for f in files:
                self.remove_one_file(f)
            if len(files) > 1:
                return files
            else:
                return files[0] # for backwards-compatibility
        raise FileNotFoundError("File not found: %s %s" % (args, kwargs))

    def remove_one_file(self, ID):
        """
        Delete a `OcrdFile </../../ocrd_models/ocrd_models.ocrd_file.html>`_.
        """
        log.info("remove_one_file(%s)" % ID)
        if isinstance(ID, OcrdFile):
            ocrd_file = ID
            ID = ocrd_file.ID
        else:
            ocrd_file = self.find_files(ID=ID)
            if ocrd_file:
                ocrd_file = ocrd_file[0]

        if not ocrd_file:
            raise FileNotFoundError("File not found: %s" % ID)

        # Delete the physical page ref
        for fptr in self.etree_findall('.//mets:fptr[@FILEID="%s"]' % ID):
            log.info("Delete fptr element %s for page '%s'", fptr, ID)
            page_div = fptr.getparent()
            page_div.remove(fptr)
            # delete empty pages
            if not page_div.getchildren():
                log.info("Delete empty page %s", page_div)
                page_div.getparent().remove(page_div)

        # Delete the file reference
        # pylint: disable=protected-access
        ocrd_file._el.getparent().remove(ocrd_file._el)

        return ocrd_file

    @property
    def physical_pages(self):
        """
        List all page IDs
        """
        return self.etree_xpath('mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"]/@ID')

    def get_physical_pages(self, for_fileIds=None):
        """
        List all page IDs (optionally for a subset of file IDs)
        """
        if for_fileIds is None:
            return self.physical_pages
        ret = [None] * len(for_fileIds)
        for page in self.etree_xpath(
            'mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"]'):
            for fptr in page.findall('mets:fptr', NS):
                if fptr.get('FILEID') in for_fileIds:
                    ret[for_fileIds.index(fptr.get('FILEID'))] = page.get('ID')
        return ret

    def set_physical_page_for_file(self, pageId, ocrd_file, order=None, orderlabel=None):
        """
        Create a new physical page
        """
        #  print(pageId, ocrd_file)
        # delete any page mapping for this file.ID
        for el_fptr in self.etree_findall(
                'mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"]/mets:fptr[@FILEID="%s"]' %
                ocrd_file.ID):
            el_fptr.getparent().remove(el_fptr)

        # find/construct as necessary
        el_structmap = self.etree_find('mets:structMap[@TYPE="PHYSICAL"]')
        if el_structmap is None:
            el_structmap = ET.SubElement(self.etree_root, TAG_METS_STRUCTMAP)
            el_structmap.set('TYPE', 'PHYSICAL')
        el_seqdiv = el_structmap.find('mets:div[@TYPE="physSequence"]', NS)
        if el_seqdiv is None:
            el_seqdiv = ET.SubElement(el_structmap, TAG_METS_DIV)
            el_seqdiv.set('TYPE', 'physSequence')
        el_pagediv = el_seqdiv.find('mets:div[@ID="%s"]' % pageId, NS)
        if el_pagediv is None:
            el_pagediv = ET.SubElement(el_seqdiv, TAG_METS_DIV)
            el_pagediv.set('TYPE', 'page')
            el_pagediv.set('ID', pageId)
            if order:
                el_pagediv.set('ORDER', order)
            if orderlabel:
                el_pagediv.set('ORDERLABEL', orderlabel)
        el_fptr = ET.SubElement(el_pagediv, TAG_METS_FPTR)
        el_fptr.set('FILEID', ocrd_file.ID)

    def get_physical_page_for_file(self, ocrd_file):
        """
        Get the pageId for a ocrd_file
        """
        ret = self.etree_xpath(
            '/mets:mets/mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"][./mets:fptr[@FILEID="%s"]]/@ID' %
            ocrd_file.ID)
        if ret:
            return ret[0]

    def remove_physical_page(self, ID):
        mets_div = self.etree_xpath(
            'mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"][@ID="%s"]' % ID)
        if mets_div:
            mets_div[0].getparent().remove(mets_div[0])


1			"""
2			API to METS
3			"""
4			from datetime import datetime
5			from re import fullmatch
6			from lxml import etree as ET
7
8			from ocrd_utils import is_local_filename, getLogger, VERSION, REGEX_PREFIX
9
10			from .constants import (
11			NAMESPACES as NS,
12			TAG_METS_AGENT,
13			TAG_METS_DIV,
14			TAG_METS_FILE,
15			TAG_METS_FILEGRP,
16			TAG_METS_FILESEC,
17			TAG_METS_FPTR,
18			TAG_METS_METSHDR,
19			TAG_METS_STRUCTMAP,
20			IDENTIFIER_PRIORITY,
21			TAG_MODS_IDENTIFIER,
22			METS_XML_EMPTY,
23			REGEX_FILE_ID
24			)
25
26			from .ocrd_xml_base import OcrdXmlDocument, ET
27			from .ocrd_mets_filter import OcrdMetsFilter
28			from .ocrd_file import OcrdFile
29			from .ocrd_agent import OcrdAgent
30
31			log = getLogger('ocrd_models.ocrd_mets')
32			REGEX_PREFIX_LEN = len(REGEX_PREFIX)
33
34			class OcrdMets(OcrdXmlDocument):
35			"""
36			API to a single METS file
37			"""
38
39			@staticmethod
40			def empty_mets(now=None):
41			"""
42			Create an empty METS file from bundled template.
43			"""
44			if not now:
45			now = datetime.now().isoformat()
46			tpl = METS_XML_EMPTY.decode('utf-8')
47			tpl = tpl.replace('{{ VERSION }}', VERSION)
48			tpl = tpl.replace('{{ NOW }}', '%s' % now)
49			return OcrdMets(content=tpl.encode('utf-8'))
50
51			def __init__(self, **kwargs):
52			"""
53
54			"""
55			super().__init__(**kwargs)
56
57			def __str__(self):
58			"""
59			String representation
60			"""
61			return 'OcrdMets[fileGrps=%s,files=%s]' % (self.file_groups, self.find_files())
62
63			@property
64			def unique_identifier(self):
65			"""
66			Get the unique identifier by looking through ``mods:identifier``
67
68			See `specs <https://ocr-d.github.io/mets#unique-id-for-the-document-processed>`_ for details.
69			"""
70			for t in IDENTIFIER_PRIORITY:
71			found = self.etree_find('.//mods:identifier[@type="%s"]' % t)
72			if found is not None:
73			return found.text
74
75			@unique_identifier.setter
76			def unique_identifier(self, purl):
77			"""
78			Set the unique identifier by looking through ``mods:identifier``
79
80			See `specs <https://ocr-d.github.io/mets#unique-id-for-the-document-processed>`_ for details.
81			"""
82			id_el = None
83			for t in IDENTIFIER_PRIORITY:
84			id_el = self.etree_find('.//mods:identifier[@type="%s"]' % t)
85			if id_el is not None:
86			break
87			if id_el is None:
88			mods = self.etree_find('.//mods:mods')
89			id_el = ET.SubElement(mods, TAG_MODS_IDENTIFIER)
90			id_el.set('type', 'purl')
91			id_el.text = purl
92
93			@property
94			def agents(self):
95			"""
96			List all `OcrdAgent </../../ocrd_models/ocrd_models.ocrd_agent.html>`_
97			"""
98			return [OcrdAgent(el_agent) for el_agent in self.etree_findall('mets:metsHdr/mets:agent')]
99
100			def add_agent(self, args, *kwargs):
101			"""
102			Add an `OcrdAgent </../../ocrd_models/ocrd_models.ocrd_agent.html>`_ to the list of agents in the metsHdr.
103			"""
104			el_metsHdr = self.etree_find('.//mets:metsHdr')
105			if el_metsHdr is None:
106			el_metsHdr = ET.Element(TAG_METS_METSHDR)
107			self.etree_root.insert(0, el_metsHdr)
108			# assert(el_metsHdr is not None)
109			el_agent = ET.SubElement(el_metsHdr, TAG_METS_AGENT)
110			# print(ET.tostring(el_metsHdr))
111			return OcrdAgent(el_agent, args, *kwargs)
112
113			@property
114			def file_groups(self):
115			"""
116			List the ``USE`` attributes of all ``mets:fileGrp``.
117			"""
118			return [el.get('USE') for el in self.etree_findall('.//mets:fileGrp')]
119
120			def find_files(self, **kwargs):
121			return OcrdMetsFilter(**kwargs).find_files(self)
122
123			def add_file_group(self, fileGrp):
124			"""
125			Add a new ``mets:fileGrp``.
126
127			Arguments:
128			fileGrp (string): ``USE`` attribute of the new filegroup.
129			"""
130			if ',' in fileGrp:
131			raise Exception('fileGrp must not contain commas')
132			el_fileSec = self.etree_find('mets:fileSec')
133			if el_fileSec is None:
134			el_fileSec = ET.SubElement(self.etree_root, TAG_METS_FILESEC)
135			el_fileGrp = el_fileSec.find('mets:fileGrp[@USE="%s"]' % fileGrp, NS)
136			if el_fileGrp is None:
137			el_fileGrp = ET.SubElement(el_fileSec, TAG_METS_FILEGRP)
138			el_fileGrp.set('USE', fileGrp)
139			return el_fileGrp
140
141			def remove_file_group(self, USE, recursive=False):
142			"""
143			Remove a fileGrp (fixed ``USE``) or fileGrps (regex ``USE``)
144
145			Arguments:
146			USE (string): USE attribute of the fileGrp to delete. Can be a regex if prefixed with //
147			recursive (boolean): Whether to recursively delete all files in the group
148			"""
149			el_fileSec = self.etree_find('mets:fileSec')
150			if el_fileSec is None:
151			raise Exception("No fileSec!")
152			if isinstance(USE, str):
153			if USE.startswith(REGEX_PREFIX):
154			for cand in el_fileSec.findall('mets:fileGrp', NS):
155			if fullmatch(USE[REGEX_PREFIX_LEN:], cand.get('USE')):
156			self.remove_file_group(cand, recursive=recursive)
157			return
158			else:
159			el_fileGrp = el_fileSec.find('mets:fileGrp[@USE="%s"]' % USE, NS)
160			else:
161			el_fileGrp = USE
162			if el_fileGrp is None: # pylint: disable=len-as-condition
163			raise Exception("No such fileGrp: %s" % USE)
164			files = el_fileGrp.findall('mets:file', NS)
165			if files:
166			if not recursive:
167			raise Exception("fileGrp %s is not empty and recursive wasn't set" % USE)
168			for f in files:
169			self.remove_one_file(f.get('ID'))
170			el_fileGrp.getparent().remove(el_fileGrp)
171
172			def add_file(self, fileGrp, mimetype=None, url=None, ID=None, pageId=None, force=False, local_filename=None, ignore=False, **kwargs):
173			"""
174			Add a `OcrdFile </../../ocrd_models/ocrd_models.ocrd_file.html>`_.
175
176			Arguments:
177			fileGrp (string): Add file to ``mets:fileGrp`` with this ``USE`` attribute
178			mimetype (string):
179			url (string):
180			ID (string):
181			pageId (string):
182			force (boolean): Whether to add the file even if a ``mets:file`` with the same ``ID`` already exists.
183			ignore (boolean): Don't look for existing files. Shift responsibility for preventing errors from duplicate ID to the user.
184			local_filename (string):
185			mimetype (string):
186			"""
187			if not ID:
188			raise Exception("Must set ID of the mets:file")
189			if not REGEX_FILE_ID.fullmatch(ID):
190			raise Exception("Invalid syntax for mets:file/@ID %s" % ID)
191			el_fileGrp = self.etree_find(".//mets:fileGrp[@USE='%s']" % fileGrp)
192			if el_fileGrp is None:
193			el_fileGrp = self.add_file_group(fileGrp)
194			if ID and not ignore and self.find_files(ID=ID) != []:
195			if not force:
196			raise Exception("File with ID='%s' already exists" % ID)
197			mets_file = self.find_files(ID=ID)[0]
198			else:
199			mets_file = OcrdFile(ET.SubElement(el_fileGrp, TAG_METS_FILE), mets=self)
200			mets_file.url = url
201			mets_file.mimetype = mimetype
202			mets_file.ID = ID
203			mets_file.pageId = pageId
204			mets_file.local_filename = local_filename
205
206			return mets_file
207
208			def remove_file(self, args, *kwargs):
209			"""
210			Delete all files matching the query. Same arguments as ``OcrdMets.find_files``
211			"""
212			# XXX must be retained for backwards-compatibility
213			if args:
214			kwargs['ID'] = args[0]
215			files = self.find_files(**kwargs)
216			if files:
217			for f in files:
218			self.remove_one_file(f)
219			if len(files) > 1:
220			return files
221			else:
222			return files[0] # for backwards-compatibility
223			raise FileNotFoundError("File not found: %s %s" % (args, kwargs))
224
225			def remove_one_file(self, ID):
226			"""
227			Delete a `OcrdFile </../../ocrd_models/ocrd_models.ocrd_file.html>`_.
228			"""
229			log.info("remove_one_file(%s)" % ID)
230			if isinstance(ID, OcrdFile):
231			ocrd_file = ID
232			ID = ocrd_file.ID
233			else:
234			ocrd_file = self.find_files(ID=ID)
235			if ocrd_file:
236			ocrd_file = ocrd_file[0]
237
238			if not ocrd_file:
239			raise FileNotFoundError("File not found: %s" % ID)
240
241			# Delete the physical page ref
242			for fptr in self.etree_findall('.//mets:fptr[@FILEID="%s"]' % ID):
243			log.info("Delete fptr element %s for page '%s'", fptr, ID)
244			page_div = fptr.getparent()
245			page_div.remove(fptr)
246			# delete empty pages
247			if not page_div.getchildren():
248			log.info("Delete empty page %s", page_div)
249			page_div.getparent().remove(page_div)
250
251			# Delete the file reference
252			# pylint: disable=protected-access
253			ocrd_file._el.getparent().remove(ocrd_file._el)
254
255			return ocrd_file
256
257			@property
258			def physical_pages(self):
259			"""
260			List all page IDs
261			"""
262			return self.etree_xpath('mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"]/@ID')
263
264			def get_physical_pages(self, for_fileIds=None):
265			"""
266			List all page IDs (optionally for a subset of file IDs)
267			"""
268			if for_fileIds is None:
269			return self.physical_pages
270			ret = [None] * len(for_fileIds)
271			for page in self.etree_xpath(
272			'mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"]'):
273			for fptr in page.findall('mets:fptr', NS):
274			if fptr.get('FILEID') in for_fileIds:
275			ret[for_fileIds.index(fptr.get('FILEID'))] = page.get('ID')
276			return ret
277
278			def set_physical_page_for_file(self, pageId, ocrd_file, order=None, orderlabel=None):
279			"""
280			Create a new physical page
281			"""
282			# print(pageId, ocrd_file)
283			# delete any page mapping for this file.ID
284			for el_fptr in self.etree_findall(
285			'mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"]/mets:fptr[@FILEID="%s"]' %
286			ocrd_file.ID):
287			el_fptr.getparent().remove(el_fptr)
288
289			# find/construct as necessary
290			el_structmap = self.etree_find('mets:structMap[@TYPE="PHYSICAL"]')
291			if el_structmap is None:
292			el_structmap = ET.SubElement(self.etree_root, TAG_METS_STRUCTMAP)
293			el_structmap.set('TYPE', 'PHYSICAL')
294			el_seqdiv = el_structmap.find('mets:div[@TYPE="physSequence"]', NS)
295			if el_seqdiv is None:
296			el_seqdiv = ET.SubElement(el_structmap, TAG_METS_DIV)
297			el_seqdiv.set('TYPE', 'physSequence')
298			el_pagediv = el_seqdiv.find('mets:div[@ID="%s"]' % pageId, NS)
299			if el_pagediv is None:
300			el_pagediv = ET.SubElement(el_seqdiv, TAG_METS_DIV)
301			el_pagediv.set('TYPE', 'page')
302			el_pagediv.set('ID', pageId)
303			if order:
304			el_pagediv.set('ORDER', order)
305			if orderlabel:
306			el_pagediv.set('ORDERLABEL', orderlabel)
307			el_fptr = ET.SubElement(el_pagediv, TAG_METS_FPTR)
308			el_fptr.set('FILEID', ocrd_file.ID)
309
310			def get_physical_page_for_file(self, ocrd_file):
311			"""
312			Get the pageId for a ocrd_file
313			"""
314			ret = self.etree_xpath(
315			'/mets:mets/mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"][./mets:fptr[@FILEID="%s"]]/@ID' %
316			ocrd_file.ID)
317			if ret:
318			return ret[0]
319
320			def remove_physical_page(self, ID):
321			mets_div = self.etree_xpath(
322			'mets:structMap[@TYPE="PHYSICAL"]/mets:div[@TYPE="physSequence"]/mets:div[@TYPE="page"][@ID="%s"]' % ID)
323			if mets_div:
324			mets_div[0].getparent().remove(mets_div[0])
325

OCR-D / core

Pull Request — master (#582)

ocrd_models.ocrd_mets.OcrdMets.remove_file() A

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