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georgia-tech-db / eva / a4c010ba-78be-4818-8e6f-1da08c6af280

31 Aug 2023 11:59PM UTC coverage: 70.992% (-10.6%) from 81.552%
a4c010ba-78be-4818-8e6f-1da08c6af280

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Merge branch 'staging' into evadb_staging

54 of 54 new or added lines in 3 files covered. (100.0%)

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/evadb/storage/document_storage_engine.py
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# coding=utf-8
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# Copyright 2018-2023 EvaDB
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from pathlib import Path
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from typing import Iterator
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from evadb.catalog.models.table_catalog import TableCatalogEntry
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from evadb.database import EvaDBDatabase
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from evadb.models.storage.batch import Batch
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from evadb.readers.document.document_reader import DocumentReader
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from evadb.storage.abstract_media_storage_engine import AbstractMediaStorageEngine
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class DocumentStorageEngine(AbstractMediaStorageEngine):
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    def __init__(self, db: EvaDBDatabase):
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        super().__init__(db)
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    def read(self, table: TableCatalogEntry, chunk_params: dict) -> Iterator[Batch]:
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        for doc_files in self._rdb_handler.read(self._get_metadata_table(table), 12):
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            for _, (row_id, file_name) in doc_files.iterrows():
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                system_file_name = self._xform_file_url_to_file_name(file_name)
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                doc_file = Path(table.file_url) / system_file_name
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                # setting batch_mem_size = 1, we need fix it
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                reader = DocumentReader(
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                    str(doc_file), batch_mem_size=1, chunk_params=chunk_params
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                )
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                for batch in reader.read():
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                    batch.frames[table.columns[0].name] = row_id
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                    batch.frames[table.columns[1].name] = str(file_name)
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                    yield batch
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