| /* |
| * 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.cache.query.index.sorted.inline.io; |
| |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.internal.cache.query.index.sorted.IndexRow; |
| import org.apache.ignite.internal.cache.query.index.sorted.InlineIndexRowHandler; |
| import org.apache.ignite.internal.cache.query.index.sorted.ThreadLocalRowHandlerHolder; |
| import org.apache.ignite.internal.cache.query.index.sorted.inline.InlineIndexKeyType; |
| import org.apache.ignite.internal.cache.query.index.sorted.inline.InlineIndexTree; |
| import org.apache.ignite.internal.pagemem.PageUtils; |
| import org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree; |
| import org.apache.ignite.internal.processors.cache.persistence.tree.io.BPlusIO; |
| import org.apache.ignite.internal.processors.cache.persistence.tree.io.BPlusInnerIO; |
| import org.apache.ignite.internal.processors.cache.persistence.tree.io.IOVersions; |
| import org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO; |
| |
| /** |
| * Inner page to store index rows with inlined keys. |
| */ |
| public abstract class AbstractInlineInnerIO extends BPlusInnerIO<IndexRow> implements InlineIO { |
| /** |
| * Amount of bytes to store inlined index keys. |
| * |
| * We do not store schema there: |
| * 1. IOs are shared between multiple indexes with the same inlineSize. |
| * 2. For backward compatibility, to restore index from PDS. |
| */ |
| private final int inlineSize; |
| |
| /** |
| * @param type Page type. |
| * @param ver Page format version. |
| * @param metaSize Size of item - information of a cache row. |
| * @param inlineSize Size of calculated inlined index keys. |
| */ |
| AbstractInlineInnerIO(short type, int ver, int metaSize, int inlineSize) { |
| super(type, ver, true, metaSize + inlineSize); |
| |
| this.inlineSize = inlineSize; |
| } |
| |
| /** |
| * Register IOs for every available {@link #inlineSize}. |
| */ |
| public static void register() { |
| for (short payload = 1; payload <= PageIO.MAX_PAYLOAD_SIZE; payload++) { |
| short ioType = (short)(PageIO.T_H2_EX_REF_INNER_START + payload - 1); |
| |
| IOVersions<? extends AbstractInlineInnerIO> versions = new IOVersions<>(new InlineInnerIO(ioType, payload)); |
| |
| PageIO.registerH2ExtraInner(versions); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("ForLoopReplaceableByForEach") |
| @Override public final void storeByOffset(long pageAddr, int off, IndexRow row) { |
| assert row.link() != 0 : row; |
| assertPageType(pageAddr); |
| |
| int fieldOff = 0; |
| |
| InlineIndexRowHandler rowHnd = ThreadLocalRowHandlerHolder.rowHandler(); |
| |
| for (int i = 0; i < rowHnd.inlineIndexKeyTypes().size(); i++) { |
| try { |
| InlineIndexKeyType keyType = rowHnd.inlineIndexKeyTypes().get(i); |
| |
| int size = keyType.put(pageAddr, off + fieldOff, row.key(i), inlineSize - fieldOff); |
| |
| // Inline size has exceeded. |
| if (size == 0) |
| break; |
| |
| fieldOff += size; |
| |
| } |
| catch (Exception e) { |
| throw new IgniteException("Failed to store new index row.", e); |
| } |
| } |
| |
| IORowHandler.store(pageAddr, off + inlineSize, row); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public final IndexRow getLookupRow(BPlusTree<IndexRow, ?> tree, long pageAddr, int idx) |
| throws IgniteCheckedException { |
| |
| long link = PageUtils.getLong(pageAddr, offset(idx) + inlineSize); |
| |
| assert link != 0; |
| |
| return ((InlineIndexTree)tree).createIndexRow(link); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public final void store(long dstPageAddr, int dstIdx, BPlusIO<IndexRow> srcIo, long srcPageAddr, int srcIdx) { |
| assertPageType(dstPageAddr); |
| |
| int srcOff = srcIo.offset(srcIdx); |
| |
| byte[] payload = PageUtils.getBytes(srcPageAddr, srcOff, inlineSize); |
| |
| int dstOff = offset(dstIdx); |
| |
| PageUtils.putBytes(dstPageAddr, dstOff, payload); |
| |
| IORowHandler.store(dstPageAddr, dstOff + inlineSize, (InlineIO)srcIo, srcPageAddr, srcIdx); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public long link(long pageAddr, int idx) { |
| return PageUtils.getLong(pageAddr, offset(idx) + inlineSize); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public int inlineSize() { |
| return inlineSize; |
| } |
| |
| /** |
| * @param payload Payload size. |
| * @return IOVersions for given payload. |
| */ |
| public static IOVersions<? extends BPlusInnerIO<IndexRow>> versions(int payload) { |
| assert payload >= 0 && payload <= PageIO.MAX_PAYLOAD_SIZE; |
| |
| return payload == 0 ? InnerIO.VERSIONS : |
| (IOVersions<BPlusInnerIO<IndexRow>>)PageIO.getInnerVersions((short)(payload - 1)); |
| } |
| } |