| /* |
| * 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.storage.pagememory.mv.io; |
| |
| import static org.apache.ignite.internal.pagememory.util.PageUtils.putByteBuffer; |
| import static org.apache.ignite.internal.pagememory.util.PageUtils.putInt; |
| import static org.apache.ignite.internal.pagememory.util.PageUtils.putShort; |
| import static org.apache.ignite.internal.pagememory.util.PartitionlessLinks.writePartitionless; |
| import static org.apache.ignite.internal.storage.pagememory.mv.MvPageTypes.T_ROW_VERSION_DATA_IO; |
| |
| import java.nio.ByteBuffer; |
| import org.apache.ignite.internal.hlc.HybridTimestamp; |
| import org.apache.ignite.internal.lang.IgniteStringBuilder; |
| import org.apache.ignite.internal.pagememory.io.AbstractDataPageIo; |
| import org.apache.ignite.internal.pagememory.io.IoVersions; |
| import org.apache.ignite.internal.pagememory.util.PartitionlessLinks; |
| import org.apache.ignite.internal.schema.BinaryRow; |
| import org.apache.ignite.internal.storage.pagememory.mv.HybridTimestamps; |
| import org.apache.ignite.internal.storage.pagememory.mv.RowVersion; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Data pages IO for {@link RowVersion}. |
| */ |
| public class RowVersionDataIo extends AbstractDataPageIo<RowVersion> { |
| /** I/O versions. */ |
| public static final IoVersions<RowVersionDataIo> VERSIONS = new IoVersions<>(new RowVersionDataIo(1)); |
| |
| /** |
| * Constructor. |
| * |
| * @param ver Page format version. |
| */ |
| protected RowVersionDataIo(int ver) { |
| super(T_ROW_VERSION_DATA_IO, ver); |
| } |
| |
| @Override |
| protected void writeRowData(long pageAddr, int dataOff, int payloadSize, RowVersion rowVersion, boolean newRow) { |
| assertPageType(pageAddr); |
| |
| int offset = dataOff; |
| |
| putShort(pageAddr, offset, (short) payloadSize); |
| offset += Short.BYTES; |
| |
| offset += HybridTimestamps.writeTimestampToMemory(pageAddr, offset, rowVersion.timestamp()); |
| |
| offset += writePartitionless(pageAddr + offset, rowVersion.nextLink()); |
| |
| putInt(pageAddr, offset, rowVersion.valueSize()); |
| offset += Integer.BYTES; |
| |
| BinaryRow row = rowVersion.value(); |
| |
| if (row != null) { |
| putShort(pageAddr, offset, (short) row.schemaVersion()); |
| offset += Short.BYTES; |
| |
| putByteBuffer(pageAddr, offset, row.tupleSlice()); |
| } else { |
| putShort(pageAddr, offset, (short) 0); |
| } |
| } |
| |
| @Override |
| protected void writeFragmentData(RowVersion rowVersion, ByteBuffer pageBuf, int rowOff, int payloadSize) { |
| assertPageType(pageBuf); |
| |
| int headerSize = rowVersion.headerSize(); |
| |
| BinaryRow row = rowVersion.value(); |
| |
| int bufferOffset; |
| int bufferSize; |
| |
| if (rowOff == 0) { |
| // first fragment |
| assert headerSize <= payloadSize : "Header must entirely fit in the first fragment, but header size is " |
| + headerSize + " and payload size is " + payloadSize; |
| |
| HybridTimestamps.writeTimestampToBuffer(pageBuf, rowVersion.timestamp()); |
| |
| PartitionlessLinks.writeToBuffer(pageBuf, rowVersion.nextLink()); |
| |
| pageBuf.putInt(rowVersion.valueSize()); |
| |
| pageBuf.putShort(row == null ? 0 : (short) row.schemaVersion()); |
| |
| bufferOffset = 0; |
| bufferSize = payloadSize - headerSize; |
| } else { |
| // non-first fragment |
| assert rowOff >= headerSize; |
| |
| bufferOffset = rowOff - headerSize; |
| bufferSize = payloadSize; |
| } |
| |
| if (row != null) { |
| putValueBufferIntoPage(pageBuf, row.tupleSlice(), bufferOffset, bufferSize); |
| } |
| } |
| |
| /** |
| * Updates timestamp leaving the rest untouched. |
| * |
| * @param pageAddr page address |
| * @param itemId item ID of the slot where row version (or its first fragment) is stored in this page |
| * @param pageSize size of the page |
| * @param timestamp timestamp to store |
| */ |
| public void updateTimestamp(long pageAddr, int itemId, int pageSize, @Nullable HybridTimestamp timestamp) { |
| int payloadOffset = getPayloadOffset(pageAddr, itemId, pageSize, 0); |
| |
| HybridTimestamps.writeTimestampToMemory(pageAddr, payloadOffset + RowVersion.TIMESTAMP_OFFSET, timestamp); |
| } |
| |
| /** |
| * Updates next link leaving the rest untouched. |
| * |
| * @param pageAddr Page address. |
| * @param itemId Item ID of the slot where row version (or its first fragment) is stored in this page. |
| * @param pageSize Size of the page. |
| * @param nextLink Next link to store. |
| */ |
| public void updateNextLink(long pageAddr, int itemId, int pageSize, long nextLink) { |
| int payloadOffset = getPayloadOffset(pageAddr, itemId, pageSize, 0); |
| |
| writePartitionless(pageAddr + payloadOffset + RowVersion.NEXT_LINK_OFFSET, nextLink); |
| } |
| |
| @Override |
| protected void printPage(long addr, int pageSize, IgniteStringBuilder sb) { |
| sb.app("RowVersionDataIo [\n"); |
| printPageLayout(addr, pageSize, sb); |
| sb.app("\n]"); |
| } |
| } |