com.facebook.presto.memory.MemoryInfo.java Source code

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Here is the source code for com.facebook.presto.memory.MemoryInfo.java

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/*
 * Licensed 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 com.facebook.presto.memory;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.MoreObjects;
import com.google.common.collect.ImmutableMap;
import io.airlift.units.DataSize;

import java.util.Map;

import static java.util.Objects.requireNonNull;

public class MemoryInfo {
    private final DataSize totalNodeMemory;
    private final Map<MemoryPoolId, MemoryPoolInfo> pools;

    @JsonCreator
    public MemoryInfo(@JsonProperty("totalNodeMemory") DataSize totalNodeMemory,
            @JsonProperty("pools") Map<MemoryPoolId, MemoryPoolInfo> pools) {
        this.totalNodeMemory = requireNonNull(totalNodeMemory, "totalNodeMemory is null");
        this.pools = ImmutableMap.copyOf(requireNonNull(pools, "pools is null"));
    }

    @JsonProperty
    public DataSize getTotalNodeMemory() {
        return totalNodeMemory;
    }

    @JsonProperty
    public Map<MemoryPoolId, MemoryPoolInfo> getPools() {
        return pools;
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this).add("totalNodeMemory", totalNodeMemory).add("pools", pools)
                .toString();
    }
}