| /* |
| * 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.jackrabbit.oak.segment; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import com.google.common.base.Supplier; |
| import com.google.common.cache.CacheStats; |
| import org.apache.jackrabbit.oak.cache.AbstractCacheStats; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * Statistics for {@link RecordCache}. |
| */ |
| public class RecordCacheStats extends AbstractCacheStats { |
| |
| @NotNull |
| private final Supplier<CacheStats> stats; |
| |
| @NotNull |
| private final Supplier<Long> elementCount; |
| |
| @NotNull |
| private final Supplier<Long> weight; |
| |
| public RecordCacheStats( |
| @NotNull String name, |
| @NotNull Supplier<CacheStats> stats, |
| @NotNull Supplier<Long> elementCount, |
| @NotNull Supplier<Long> weight) { |
| super(name); |
| this.stats = checkNotNull(stats); |
| this.elementCount = checkNotNull(elementCount); |
| this.weight = checkNotNull(weight); |
| } |
| |
| @Override |
| protected CacheStats getCurrentStats() { |
| return stats.get(); |
| } |
| |
| @Override |
| public long getElementCount() { |
| return elementCount.get(); |
| } |
| |
| @Override |
| public long getMaxTotalWeight() { |
| return -1; |
| } |
| |
| @Override |
| public long estimateCurrentWeight() { |
| return weight.get(); |
| } |
| } |