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/** |
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* Copyright © 2016-2025 The Thingsboard Authors |
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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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*/ |
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package org.thingsboard.server.utils; |
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import lombok.SneakyThrows; |
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import org.rocksdb.Options; |
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import org.rocksdb.RocksDB; |
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import org.rocksdb.RocksIterator; |
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import org.rocksdb.WriteOptions; |
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import java.nio.charset.StandardCharsets; |
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import java.nio.file.Files; |
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import java.nio.file.Path; |
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import java.util.function.BiConsumer; |
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public class TbRocksDb { |
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protected final String path; |
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private final WriteOptions writeOptions; |
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protected final RocksDB db; |
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static { |
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RocksDB.loadLibrary(); |
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} |
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public TbRocksDb(String path, Options dbOptions, WriteOptions writeOptions) throws Exception { |
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this.path = path; |
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this.writeOptions = writeOptions; |
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Files.createDirectories(Path.of(path).getParent()); |
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this.db = RocksDB.open(dbOptions, path); |
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} |
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@SneakyThrows |
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public void put(String key, byte[] value) { |
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db.put(writeOptions, key.getBytes(StandardCharsets.UTF_8), value); |
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} |
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public void forEach(BiConsumer<String, byte[]> processor) { |
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try (RocksIterator iterator = db.newIterator()) { |
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for (iterator.seekToFirst(); iterator.isValid(); iterator.next()) { |
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String key = new String(iterator.key(), StandardCharsets.UTF_8); |
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processor.accept(key, iterator.value()); |
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} |
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} |
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} |
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@SneakyThrows |
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public void delete(String key) { |
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db.delete(writeOptions, key.getBytes(StandardCharsets.UTF_8)); |
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} |
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public void close() { |
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if (db != null) { |
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db.close(); |
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} |
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} |
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} |
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