PooledByteBufAllocatorMetric.java — netty Source File

Source Code

/*
 * Copyright 2017 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.buffer;

import io.netty.util.internal.StringUtil;

import java.util.List;

/**
 * Exposed metric for {@link PooledByteBufAllocator}.
 */
@SuppressWarnings("deprecation")
public final class PooledByteBufAllocatorMetric implements ByteBufAllocatorMetric {

    private final PooledByteBufAllocator allocator;

    PooledByteBufAllocatorMetric(PooledByteBufAllocator allocator) {
        this.allocator = allocator;
    }

    /**
     * Return the number of heap arenas.
     */
    public int numHeapArenas() {
        return allocator.numHeapArenas();
    }

    /**
     * Return the number of direct arenas.
     */
    public int numDirectArenas() {
        return allocator.numDirectArenas();
    }

    /**
     * Return a {@link List} of all heap {@link PoolArenaMetric}s that are provided by this pool.
     */
    public List<PoolArenaMetric> heapArenas() {
        return allocator.heapArenas();
    }

    /**
     * Return a {@link List} of all direct {@link PoolArenaMetric}s that are provided by this pool.
     */
    public List<PoolArenaMetric> directArenas() {
        return allocator.directArenas();
    }
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