/*

 * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.internal.net.http;

import java.io.IOException;

import java.lang.ref.Reference;

import java.net.Authenticator;

import java.net.CookieHandler;

import java.net.ProxySelector;

import java.time.Duration;

import java.util.Optional;

import java.util.concurrent.CompletableFuture;

import java.util.concurrent.Executor;

import javax.net.ssl.SSLContext;

import javax.net.ssl.SSLParameters;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

import java.net.http.HttpResponse.BodyHandler;

import java.net.http.HttpResponse.PushPromiseHandler;

import java.net.http.WebSocket;

import jdk.internal.net.http.common.OperationTrackers.Trackable;

import jdk.internal.net.http.common.OperationTrackers.Tracker;

/**

 * An HttpClientFacade is a simple class that wraps an HttpClient implementation

 * and delegates everything to its implementation delegate.

 */

final class HttpClientFacade extends HttpClient implements Trackable {

    final HttpClientImpl impl;

    /**

     * Creates an HttpClientFacade.

     */

    HttpClientFacade(HttpClientImpl impl) {

        this.impl = impl;

    }

    @Override // for tests

    public Tracker getOperationsTracker() {

        return impl.getOperationsTracker();

    }

    @Override

    public Optional<CookieHandler> cookieHandler() {

        return impl.cookieHandler();

    }

    @Override

    public Optional<Duration> connectTimeout() {

        return impl.connectTimeout();

    }

    @Override

    public Redirect followRedirects() {

        return impl.followRedirects();

    }

    @Override

    public Optional<ProxySelector> proxy() {

        return impl.proxy();

    }

    @Override

    public SSLContext sslContext() {

        return impl.sslContext();

    }

    @Override

    public SSLParameters sslParameters() {

        return impl.sslParameters();

    }

    @Override

    public Optional<Authenticator> authenticator() {

        return impl.authenticator();

    }

    @Override

    public HttpClient.Version version() {

        return impl.version();

    }

    @Override

    public Optional<Executor> executor() {

        return impl.executor();

    }

    @Override

    public <T> HttpResponse<T>

    send(HttpRequest req, HttpResponse.BodyHandler<T> responseBodyHandler)

        throws IOException, InterruptedException

    {

        try {

            return impl.send(req, responseBodyHandler);

        } finally {

            Reference.reachabilityFence(this);

        }

    }

    @Override

    public <T> CompletableFuture<HttpResponse<T>>

    sendAsync(HttpRequest req, HttpResponse.BodyHandler<T> responseBodyHandler) {

        try {

            return impl.sendAsync(req, responseBodyHandler);

        } finally {

            Reference.reachabilityFence(this);

        }

    }

    @Override

    public <T> CompletableFuture<HttpResponse<T>>

    sendAsync(HttpRequest req,

              BodyHandler<T> responseBodyHandler,

              PushPromiseHandler<T> pushPromiseHandler){

        try {

            return impl.sendAsync(req, responseBodyHandler, pushPromiseHandler);

        } finally {

            Reference.reachabilityFence(this);

        }

    }

    @Override

    public WebSocket.Builder newWebSocketBuilder() {

        try {

            return impl.newWebSocketBuilder();

        } finally {

            Reference.reachabilityFence(this);

        }

    }

    @Override

    public String toString() {

        // Used by tests to get the client's id.

        return impl.toString();

    }

}