| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with this |
| * work for additional information regarding copyright ownership. The ASF |
| * licenses this file to You under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.hugegraph.unit.rocksdb; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.ArrayList; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.Before; |
| import org.rocksdb.RocksDBException; |
| |
| import org.apache.hugegraph.backend.store.rocksdb.RocksDBSessions; |
| import org.apache.hugegraph.backend.store.rocksdb.RocksDBStdSessions; |
| import org.apache.hugegraph.config.HugeConfig; |
| import org.apache.hugegraph.unit.BaseUnitTest; |
| import org.apache.hugegraph.unit.FakeObjects; |
| |
| public class BaseRocksDBUnitTest extends BaseUnitTest { |
| |
| private static final String TMP_DIR = System.getProperty("java.io.tmpdir"); |
| protected static final String DB_PATH = TMP_DIR + "/" + "rocksdb"; |
| protected static final String SNAPSHOT_PATH = TMP_DIR + "/" + "snapshot"; |
| |
| protected static final String TABLE = "test-table"; |
| |
| protected RocksDBSessions rocks; |
| |
| @AfterClass |
| public static void clear() throws IOException { |
| /* |
| * The FileUtils.forceDelete() can only accept a `File` |
| * in `org.apache.commons.io` version 2.4 |
| */ |
| FileUtils.forceDelete(FileUtils.getFile(DB_PATH)); |
| } |
| |
| @Before |
| public void setup() throws RocksDBException { |
| this.rocks = open(TABLE); |
| this.rocks.session(); |
| } |
| |
| @After |
| public void teardown() throws RocksDBException { |
| this.clearData(); |
| close(this.rocks); |
| } |
| |
| protected void put(String key, String value) { |
| this.rocks.session().put(TABLE, getBytes(key), getBytes(value)); |
| this.commit(); |
| } |
| |
| protected String get(String key) throws RocksDBException { |
| return getString(this.rocks.session().get(TABLE, getBytes(key))); |
| } |
| |
| protected void clearData() throws RocksDBException { |
| for (String table : new ArrayList<>(this.rocks.openedTables())) { |
| this.rocks.session().deleteRange(table, |
| new byte[]{0}, new byte[]{-1}); |
| } |
| this.commit(); |
| } |
| |
| protected void commit() { |
| try { |
| this.rocks.session().commit(); |
| } finally { |
| this.rocks.session().rollback(); |
| } |
| } |
| |
| protected static byte[] getBytes(String str) { |
| return str.getBytes(); |
| } |
| |
| protected static String getString(byte[] bytes) { |
| return bytes == null ? null : new String(bytes); |
| } |
| |
| protected static byte[] getBytes(long val) { |
| ByteBuffer buf = ByteBuffer.allocate(8).order(ByteOrder.nativeOrder()); |
| buf.putLong(val); |
| return buf.array(); |
| } |
| |
| protected static long getLong(byte[] bytes) { |
| ByteBuffer buf = ByteBuffer.wrap(bytes).order(ByteOrder.nativeOrder()); |
| return buf.getLong(); |
| } |
| |
| private static RocksDBSessions open(String table) throws RocksDBException { |
| HugeConfig config = FakeObjects.newConfig(); |
| RocksDBSessions rocks = new RocksDBStdSessions(config, "db", "store", |
| DB_PATH, DB_PATH); |
| rocks.createTable(table); |
| return rocks; |
| } |
| |
| private static void close(RocksDBSessions rocks) throws RocksDBException { |
| for (String table : new ArrayList<>(rocks.openedTables())) { |
| if (table.equals("default")) { |
| continue; |
| } |
| rocks.dropTable(table); |
| } |
| rocks.close(); |
| } |
| } |