67 lines
2.4 KiB
Java
67 lines
2.4 KiB
Java
/*
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* FileSponge
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* Copyright (C) 2023 Andrea Cavalli
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package org.warp.filesponge;
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import it.cavallium.dbengine.client.IBackuppable;
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import it.cavallium.dbengine.database.ColumnUtils;
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import it.cavallium.dbengine.database.LLDatabaseConnection;
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import it.cavallium.dbengine.database.LLDictionary;
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import it.cavallium.dbengine.database.LLKeyValueDatabase;
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import it.cavallium.dbengine.database.SafeCloseable;
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import it.cavallium.dbengine.database.UpdateMode;
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import it.cavallium.dbengine.rpc.current.data.DatabaseOptions;
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import java.util.List;
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import java.util.function.Predicate;
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import java.util.stream.Stream;
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import reactor.util.function.Tuple2;
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public interface DiskCache extends URLsDiskHandler, URLsWriter, SafeCloseable {
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void writeMetadataSync(URL url, Metadata metadata);
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void writeContentBlockSync(URL url, DataBlock dataBlock);
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Stream<DataBlock> requestContentSync(URL url);
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DiskMetadata requestDiskMetadataSync(URL url);
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Metadata requestMetadataSync(URL url);
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Tuple2<Metadata, Stream<DataBlock>> requestSync(URL url);
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static DiskCache open(LLDatabaseConnection databaseConnection,
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String dbName,
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DatabaseOptions databaseOptions,
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Predicate<URL> shouldCache) {
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var db = databaseConnection.getDatabase(dbName,
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List.of(ColumnUtils.dictionary("file-content"), ColumnUtils.dictionary("file-metadata")),
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databaseOptions
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);
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var dict1 = db.getDictionary("file-content", UpdateMode.ALLOW);
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var dict2 = db.getDictionary("file-metadata", UpdateMode.ALLOW);
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return new DiskCacheImpl(db, dict1, dict2, shouldCache);
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}
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static DiskCache openCustom(LLDictionary fileContent,
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LLDictionary fileMetadata,
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Predicate<URL> shouldCache) {
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return new DiskCacheImpl(null, fileContent, fileMetadata, shouldCache);
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}
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}
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