io.sidecar.query.StatsAnswer.java Source code

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Here is the source code for io.sidecar.query.StatsAnswer.java

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/*
 * Copyright 2015 QSense, Inc.
 *
 * 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 io.sidecar.query;

import java.util.Map;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableMap.Builder;

public final class StatsAnswer implements Answer {

    private final ImmutableMap<String, ImmutableMap<String, Double>> keys;

    public StatsAnswer(Map<String, Map<String, Double>> statsKeys) {
        if (statsKeys == null) {
            keys = ImmutableMap.of();
        } else {
            Builder<String, ImmutableMap<String, Double>> imb = ImmutableMap.builder();
            for (Map.Entry<String, Map<String, Double>> e : statsKeys.entrySet()) {
                imb.put(e.getKey(), ImmutableMap.copyOf(e.getValue()));
            }
            keys = imb.build();
        }
    }

    /**
     * Each stat calculated is assigned to a key value pair (ie mean : 10.01)
     *
     * @return the stat keys and their respective numeric value
     */
    public ImmutableMap<String, ImmutableMap<String, Double>> getKeys() {
        return keys;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }

        StatsAnswer that = (StatsAnswer) obj;

        return keys.equals(that.keys);
    }

    @Override
    public int hashCode() {
        int result = 31 * keys.hashCode();
        return result;
    }

    @Override
    public String toString() {
        return "StatsAnswer{" + " keys=" + keys + '}';
    }
}