examples/mp-metrics-gauge/src/main/java/org/superbiz/rest/WeatherService.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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
 *
 *     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 org.superbiz.rest;

import org.eclipse.microprofile.metrics.annotation.Gauge;

import javax.enterprise.context.ApplicationScoped;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Path("/weather")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
@ApplicationScoped
public class WeatherService {

    @Path("/day/temperature")
    @Gauge(name = "weather_day_temperature", absolute = true, unit = "celsius",
            displayName = "Weather Day Temperature",
            description = "This metric shows the day temperature.",
            tags = {"weather=temperature"})
    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public Integer dayTemperature() {
        return 30;
    }
}