tkalkirill commented on code in PR #947: URL: https://github.com/apache/ignite-3/pull/947#discussion_r928609841
########## modules/page-memory/src/main/java/org/apache/ignite/internal/pagememory/persistence/store/DeltaFilePageStoreIo.java: ########## @@ -0,0 +1,113 @@ +/* + * 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.pagememory.persistence.store; + +import static java.nio.ByteOrder.nativeOrder; +import static java.util.Arrays.binarySearch; +import static org.apache.ignite.internal.pagememory.persistence.store.DeltaFilePageStoreIoHeader.checkFileIndex; +import static org.apache.ignite.internal.pagememory.persistence.store.DeltaFilePageStoreIoHeader.checkFilePageIndexes; +import static org.apache.ignite.internal.pagememory.persistence.store.DeltaFilePageStoreIoHeader.readHeader; +import static org.apache.ignite.internal.pagememory.persistence.store.PageStoreUtils.checkFilePageSize; +import static org.apache.ignite.internal.pagememory.persistence.store.PageStoreUtils.checkFileVersion; +import static org.apache.ignite.internal.pagememory.util.PageIdUtils.pageIndex; + +import java.io.IOException; +import java.nio.ByteBuffer; +import java.nio.file.Path; +import org.apache.ignite.internal.fileio.FileIo; +import org.apache.ignite.internal.fileio.FileIoFactory; + +/** + * Implementation of the class for working with the delta file page storage IO. + */ +public class DeltaFilePageStoreIo extends AbstractFilePageStoreIo { + private final DeltaFilePageStoreIoHeader header; + + /** + * Constructor. + * + * @param ioFactory {@link FileIo} factory. + * @param filePath File page store path. + * @param header Delta file page store header. + */ + public DeltaFilePageStoreIo( + FileIoFactory ioFactory, + Path filePath, + DeltaFilePageStoreIoHeader header + ) { + super(ioFactory, filePath); + + this.header = header; + } + + /** {@inheritDoc} */ + @Override + public int pageSize() { + return header.pageSize(); + } + + /** {@inheritDoc} */ + @Override + public int headerSize() { + return header.headerSize(); + } + + /** {@inheritDoc} */ + @Override + public ByteBuffer headerBuffer() { + return header.toByteBuffer(); + } + + /** {@inheritDoc} */ + @Override + public void checkHeader(FileIo fileIo) throws IOException { + DeltaFilePageStoreIoHeader header = readHeader(fileIo, ByteBuffer.allocate(pageSize()).order(nativeOrder())); + + if (header == null) { + throw new IOException("Missing file header"); + } + + checkFileVersion(this.header.version(), header.version()); + checkFileIndex(this.header.index(), header.index()); + checkFilePageSize(this.header.pageSize(), header.pageSize()); + checkFilePageIndexes(this.header.pageIndexes(), header.pageIndexes()); + } + + /** + * Returns page offset within the store file, {@code -1} if not found page in delta file. Review Comment: fix it -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
