/*
 * Copyright 2022 Mitsunori Komatsu (komamitsu)
 *
 * 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.komamitsu.fluency.fluentd.ingester.sender.heartbeat;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.net.UnixDomainSocketAddress;
import java.nio.channels.SocketChannel;
import java.nio.file.Path;

public class UnixSocketHeartbeater
        extends Heartbeater
{
    private static final Logger LOG = LoggerFactory.getLogger(UnixSocketHeartbeater.class);
    private final Config config;

    public UnixSocketHeartbeater()
    {
        this(new Config());
    }

    public UnixSocketHeartbeater(final Config config)
    {
        super(config);
        this.config = config;
    }

    @Override
    protected void invoke()
            throws IOException
    {
        try (SocketChannel socketChannel = SocketChannel.open(UnixDomainSocketAddress.of(config.getPath()))) {
            LOG.trace("UnixSocketHeartbeat: {}", socketChannel);
            pong();
        }
    }

    public Path getPath()
    {
        return config.getPath();
    }

    @Override
    public String toString()
    {
        return "UnixSocketHeartbeater{" +
                "config=" + config +
                "} " + super.toString();
    }

    public static class Config
            extends Heartbeater.Config
    {
        private Path path;

        public Path getPath()
        {
            return path;
        }

        public void setPath(Path path)
        {
            this.path = path;
        }
    }
}

