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package ars.invoke.remote;

import java.io.Serializable;

import ars.util.Strings;

/**
 * 远程节点
 *
 * @author wuyongqiang
 */
public class Node implements Serializable {
    private static final long serialVersionUID = 1L;

    private Protocol protocol; // 传输协议
    private String host; // 主机地址
    private int port; // 端口号

    public Node(int port) {
        this(Protocol.tcp, port);
    }

    public Node(Protocol protocol, int port) {
        this(protocol, Strings.DEFAULT_LOCALHOST_ADDRESS, port);
    }

    public Node(String host, int port) {
        this(Protocol.tcp, host, port);
    }

    public Node(Protocol protocol, String host, int port) {
        if (protocol == null) {
            throw new IllegalArgumentException("Protocol must not be null");
        }
        if (host == null) {
            throw new IllegalArgumentException("Host must not be null");
        }
        if (port < 1) {
            throw new IllegalArgumentException("Port must not be less than 1, got " + port);
        }
        this.protocol = protocol;
        this.host = host;
        this.port = port;
    }

    public Protocol getProtocol() {
        return protocol;
    }

    public String getHost() {
        return host;
    }

    public int getPort() {
        return port;
    }

    @Override
    public int hashCode() {
        int code = 1;
        code = 31 * code + this.protocol.hashCode();
        code = 31 * code + this.host.hashCode();
        code = 31 * code + this.port;
        return code;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        } else if (obj == null || !(obj instanceof Node)) {
            return false;
        }
        Node node = (Node) obj;
        return this.protocol == node.getProtocol() && this.host.equals(node.getHost()) && this.port == node.getPort();
    }

    @Override
    public String toString() {
        return new StringBuilder().append(this.protocol).append(':').append(this.host).append(':').append(this.port)
            .toString();
    }

}