com.github.zhangxd1989.basetool.system.HostInfo Maven / Gradle / Ivy

package com.github.zhangxd1989.basetool.system;

import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 * 代表当前主机的信息
 *
 * @author sheldon
 */
public class HostInfo {

    private final String HOST_NAME;
    private final String HOST_ADDRESS;

    public HostInfo() {
        String hostName;
        String hostAddress;

        try {
            InetAddress localhost = InetAddress.getLocalHost();

            hostName = localhost.getHostName();
            hostAddress = localhost.getHostAddress();
        } catch (UnknownHostException e) {
            hostName = "localhost";
            hostAddress = "127.0.0.1";
        }

        HOST_NAME = hostName;
        HOST_ADDRESS = hostAddress;
    }

    /**
     * 取得当前主机的名称。
     * 
     * 例如："webserver1"
     * 
     *
     * @return 主机名
     */
    public final String getName() {
        return HOST_NAME;
    }

    /**
     * 取得当前主机的地址。
     * 
     * 例如："192.168.0.1"
     * 
     *
     * @return 主机地址
     */
    public final String getAddress() {
        return HOST_ADDRESS;
    }

    /**
     * 将当前主机的信息转换成字符串。
     *
     * @return 主机信息的字符串表示
     */
    @Override
    public final String toString() {
        StringBuilder builder = new StringBuilder();

        SystemUtil.append(builder, "Host Name:    ", getName());
        SystemUtil.append(builder, "Host Address: ", getAddress());

        return builder.toString();
    }

}