package org.apidesign.aserverinfo.cummulativefactory;

import org.apidesign.aserverinfo.spi.NameProvider;

import org.apidesign.aserverinfo.spi.ResetHandler;

import org.apidesign.aserverinfo.spi.URLProvider;

import java.net.URL;

import org.apidesign.aserverinfo.spi.ShutdownHandler;

// BEGIN: aserverinfo.api

/** A class to connect to server, identify it and manipulate with

 * it state. The <a href="http://apidesign.org">Practical API Design</a>

 * book used to call it AServerInfo.

 * <p>

 */

public final class ServerConnector {

    public String getName() {

        return name == null ? "noname" : name.getName();

    }

    public URL getURL() {

        return url == null ? null : url.getURL();

    }

    public void reset() {

        if (reset != null) {

            reset.reset();

        }

    }

    /** Additional method for API clients not available from first version.

     * @since 2.0

     */

    public void shutdown() {

        if (shutdown != null) {

            shutdown.shutdown();

        }

    }

// FINISH: aserverinfo.api

    //

    // cumulative factory methods

    //

    // BEGIN: aserverinfo.cumulative.factory

    public static ServerConnector empty() {

        return new ServerConnector(null, null, null, null);

    }

    public final ServerConnector nameProvider(NameProvider np) {

        return new ServerConnector(np, this.url, this.reset, this.shutdown);

    }

    public final ServerConnector urlProvider(URLProvider up) {

        return new ServerConnector(this.name, up, this.reset, this.shutdown);

    }

    public final ServerConnector reset(ResetHandler h) {

        return new ServerConnector(this.name, this.url, h, this.shutdown);

    }

    /** All one needs to do when there is a need to add new

     * style of creation is to add new <em>clonning</em> method.

     * @param handler

     * @return

     * @since 2.0

     */

    public final ServerConnector shutdown(ShutdownHandler handler) {

        return new ServerConnector(this.name, this.url, this.reset, handler);

    }

    // END: aserverinfo.cumulative.factory

    //

    // private part

    //

    private final NameProvider name;

    private final URLProvider url;

    private final ResetHandler reset;

    private final ShutdownHandler shutdown;

    private ServerConnector(

        NameProvider name, URLProvider url,

        ResetHandler reset, ShutdownHandler shutdown

    ) {

        this.name = name;

        this.url = url;

        this.reset = reset;

        this.shutdown = shutdown;

    }

}