/*
 * Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * 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.helidon.metrics;

import javax.json.JsonObjectBuilder;

import org.eclipse.microprofile.metrics.Metric;

/**
 * Helidon Extension of {@link Metric}.
 * All metrics should inherit from {@link MetricImpl}.
 */
interface HelidonMetric extends Metric {
    /**
     * Add this metrics data to the JSON builder.
     *
     * @param builder builder of the registry (or of a single metric) result
     */
    void jsonData(JsonObjectBuilder builder);

    /**
     * Add this metrics metadata to the JSON builder.
     *
     * @param builder builder of the registry (or of a single metric) result
     */
    void jsonMeta(JsonObjectBuilder builder);

    /**
     * Return this metric data in prometheus format.
     *
     * @return data and metadata of this metric in Prometheus format
     */
    String prometheusData();
}
