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/*
 *
 *  * Copyright 2005-2015 Red Hat, Inc.
 *  * Red Hat 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 io.fabric8.mq.protocol.mqtt;

import org.apache.activemq.command.Response;

import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

public class FutureResponseHandler implements ResponseHandler {
    private final CountDownLatch latch = new CountDownLatch(1);
    private Response response;

    public void onResponse(MQTTProtocolConverter converter, Response response) throws IOException {
        this.response = response;
        latch.countDown();
    }

    public Response getResponse() {
        try {
            latch.await();
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
        return response;
    }

    public Response getResponse(long timeout) {
        try {
            latch.await(timeout, TimeUnit.MILLISECONDS);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
        return response;
    }
}