/*
 * Copyright 2013-2018 the original author or authors.
 *
 * 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 org.springframework.cloud.netflix.hystrix;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.actuate.endpoint.web.EndpointServlet;
import org.springframework.boot.actuate.endpoint.web.annotation.ServletEndpoint;

import java.util.Map;
import java.util.function.Supplier;

/**
 * {@link org.springframework.boot.actuate.endpoint.annotation.Endpoint} to expose a Jolokia {@link HystrixMetricsStreamServlet}.
 *
 * @author Phillip Webb
 * @since 2.0.0
 */
@ServletEndpoint(id = "hystrix.stream")
public class HystrixStreamEndpoint implements Supplier<EndpointServlet> {

    private final Map<String, String> initParameters;

    public HystrixStreamEndpoint(Map<String, String> initParameters) {
        this.initParameters = initParameters;
    }

    @Override
    public EndpointServlet get() {
        return new EndpointServlet(HystrixMetricsStreamServlet.class)
                .withInitParameters(this.initParameters);
    }
}
