container-search/src/main/java/com/yahoo/search/query/profile/compiled/ValueWithSource.java


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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.query.profile.compiled;

import com.yahoo.search.query.profile.DimensionValues;

import java.util.Optional;

/**
 * A value in a query profile with information about its source.
 *
 * @author bratseth
 */
public class ValueWithSource {

    private final Object value;

    /** The id of the query profile having a value */
    private final String ownerId;

    /** The dimension values specifying a variant in that profile, or null if it is not in a variant */
    private final DimensionValues variant;

    public ValueWithSource(Object value, String ownerId, DimensionValues variant) {
        this.value = value;
        this.ownerId = ownerId;
        this.variant = variant;
    }

    public Object value() { return value; }

    public String ownerId() { return ownerId; }

    public ValueWithSource withValue(Object value) {
        return new ValueWithSource(value, ownerId, variant);
    }

    /** Returns the variant having this value, or empty if it's not in a variant */
    public Optional<DimensionValues> variant() { return Optional.ofNullable(variant); }

    @Override
    public String toString() {
        return value + " from " + ownerId + ( variant != null ? " variant " + variant : "");
    }

}