| /* |
| * 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.cassandra.io.sstable; |
| |
| import org.apache.cassandra.config.Config; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.io.util.DiskOptimizationStrategy; |
| import org.apache.cassandra.io.util.SequentialWriterOption; |
| |
| public class IOOptions |
| { |
| public static IOOptions fromDatabaseDescriptor() |
| { |
| return new IOOptions(DatabaseDescriptor.getDiskOptimizationStrategy(), |
| DatabaseDescriptor.getDiskAccessMode(), |
| DatabaseDescriptor.getIndexAccessMode(), |
| DatabaseDescriptor.getDiskOptimizationEstimatePercentile(), |
| SequentialWriterOption.newBuilder() |
| .trickleFsync(DatabaseDescriptor.getTrickleFsync()) |
| .trickleFsyncByteInterval(DatabaseDescriptor.getTrickleFsyncIntervalInKiB() * 1024) |
| .build(), |
| DatabaseDescriptor.getFlushCompression()); |
| } |
| |
| public final DiskOptimizationStrategy diskOptimizationStrategy; |
| public final Config.DiskAccessMode defaultDiskAccessMode; |
| public final Config.DiskAccessMode indexDiskAccessMode; |
| public final double diskOptimizationEstimatePercentile; |
| public final SequentialWriterOption writerOptions; |
| public final Config.FlushCompression flushCompression; |
| |
| public IOOptions(DiskOptimizationStrategy diskOptimizationStrategy, |
| Config.DiskAccessMode defaultDiskAccessMode, |
| Config.DiskAccessMode indexDiskAccessMode, |
| double diskOptimizationEstimatePercentile, |
| SequentialWriterOption writerOptions, |
| Config.FlushCompression flushCompression) |
| { |
| this.diskOptimizationStrategy = diskOptimizationStrategy; |
| this.defaultDiskAccessMode = defaultDiskAccessMode; |
| this.indexDiskAccessMode = indexDiskAccessMode; |
| this.diskOptimizationEstimatePercentile = diskOptimizationEstimatePercentile; |
| this.writerOptions = writerOptions; |
| this.flushCompression = flushCompression; |
| } |
| } |