| /* |
| * 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.cache; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| |
| import org.apache.cassandra.config.ColumnDefinition; |
| import org.apache.cassandra.db.*; |
| import org.apache.cassandra.db.rows.CellPath; |
| import org.apache.cassandra.db.marshal.CompositeType; |
| import org.apache.cassandra.utils.*; |
| |
| public final class CounterCacheKey extends CacheKey |
| { |
| private static final long EMPTY_SIZE = ObjectSizes.measure(new CounterCacheKey(null, ByteBufferUtil.EMPTY_BYTE_BUFFER, ByteBuffer.allocate(1))); |
| |
| public final byte[] partitionKey; |
| public final byte[] cellName; |
| |
| public CounterCacheKey(Pair<String, String> ksAndCFName, ByteBuffer partitionKey, ByteBuffer cellName) |
| { |
| super(ksAndCFName); |
| this.partitionKey = ByteBufferUtil.getArray(partitionKey); |
| this.cellName = ByteBufferUtil.getArray(cellName); |
| } |
| |
| public static CounterCacheKey create(Pair<String, String> ksAndCFName, ByteBuffer partitionKey, Clustering clustering, ColumnDefinition c, CellPath path) |
| { |
| return new CounterCacheKey(ksAndCFName, partitionKey, makeCellName(clustering, c, path)); |
| } |
| |
| private static ByteBuffer makeCellName(Clustering clustering, ColumnDefinition c, CellPath path) |
| { |
| int cs = clustering.size(); |
| ByteBuffer[] values = new ByteBuffer[cs + 1 + (path == null ? 0 : path.size())]; |
| for (int i = 0; i < cs; i++) |
| values[i] = clustering.get(i); |
| values[cs] = c.name.bytes; |
| if (path != null) |
| for (int i = 0; i < path.size(); i++) |
| values[cs + 1 + i] = path.get(i); |
| return CompositeType.build(values); |
| } |
| |
| public long unsharedHeapSize() |
| { |
| return EMPTY_SIZE |
| + ObjectSizes.sizeOfArray(partitionKey) |
| + ObjectSizes.sizeOfArray(cellName); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return String.format("CounterCacheKey(%s, %s, %s)", |
| ksAndCFName, |
| ByteBufferUtil.bytesToHex(ByteBuffer.wrap(partitionKey)), |
| ByteBufferUtil.bytesToHex(ByteBuffer.wrap(cellName))); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Arrays.deepHashCode(new Object[]{ksAndCFName, partitionKey, cellName}); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) |
| return true; |
| |
| if (!(o instanceof CounterCacheKey)) |
| return false; |
| |
| CounterCacheKey cck = (CounterCacheKey) o; |
| |
| return ksAndCFName.equals(cck.ksAndCFName) |
| && Arrays.equals(partitionKey, cck.partitionKey) |
| && Arrays.equals(cellName, cck.cellName); |
| } |
| } |