| /* |
| * 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.ignite.internal.processors.cache; |
| |
| import java.io.File; |
| import java.nio.ByteBuffer; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.configuration.CacheConfiguration; |
| import org.apache.ignite.configuration.DataStorageConfiguration; |
| import org.apache.ignite.configuration.DiskPageCompression; |
| import org.apache.ignite.internal.pagemem.store.PageStore; |
| import org.apache.ignite.internal.processors.compress.CompressionProcessor; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| |
| import static org.apache.ignite.internal.processors.compress.CompressionProcessor.checkCompressionLevelBounds; |
| import static org.apache.ignite.internal.processors.compress.CompressionProcessor.getDefaultCompressionLevel; |
| |
| /** |
| * Cache compression manager. |
| */ |
| public class CacheCompressionManager extends GridCacheManagerAdapter { |
| /** */ |
| private DiskPageCompression diskPageCompression; |
| |
| /** */ |
| private int diskPageCompressLevel; |
| |
| /** */ |
| private CompressionProcessor compressProc; |
| |
| /** {@inheritDoc} */ |
| @Override protected void start0() throws IgniteCheckedException { |
| if (cctx.kernalContext().clientNode()) { |
| diskPageCompression = DiskPageCompression.DISABLED; |
| |
| return; |
| } |
| |
| compressProc = cctx.kernalContext().compress(); |
| |
| CacheConfiguration cfg = cctx.config(); |
| |
| diskPageCompression = cctx.kernalContext().config().isClientMode() ? null : cfg.getDiskPageCompression(); |
| |
| if (diskPageCompression != DiskPageCompression.DISABLED) { |
| if (!cctx.dataRegion().config().isPersistenceEnabled()) |
| throw new IgniteCheckedException("Disk page compression makes sense only with enabled persistence."); |
| |
| Integer lvl = cfg.getDiskPageCompressionLevel(); |
| diskPageCompressLevel = lvl != null ? |
| checkCompressionLevelBounds(lvl, diskPageCompression) : |
| getDefaultCompressionLevel(diskPageCompression); |
| |
| DataStorageConfiguration dsCfg = cctx.kernalContext().config().getDataStorageConfiguration(); |
| |
| File dbPath = cctx.kernalContext().pdsFolderResolver().resolveFolders().persistentStoreRootPath(); |
| |
| assert dbPath != null; |
| |
| compressProc.checkPageCompressionSupported(dbPath.toPath(), dsCfg.getPageSize()); |
| |
| if (log.isInfoEnabled()) { |
| log.info("Disk page compression is enabled [cache=" + cctx.name() + |
| ", compression=" + diskPageCompression + ", level=" + diskPageCompressLevel + "]"); |
| } |
| } |
| } |
| |
| /** |
| * @param page Page buffer. |
| * @param store Page store. |
| * @return Compressed or the same buffer. |
| * @throws IgniteCheckedException If failed. |
| */ |
| public ByteBuffer compressPage(ByteBuffer page, PageStore store) throws IgniteCheckedException { |
| if (diskPageCompression == DiskPageCompression.DISABLED) |
| return page; |
| |
| int blockSize = store.getBlockSize(); |
| |
| if (blockSize <= 0) |
| throw new IgniteCheckedException("Failed to detect storage block size on " + U.osString()); |
| |
| return compressProc.compressPage(page, store.getPageSize(), blockSize, diskPageCompression, diskPageCompressLevel); |
| } |
| } |