Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/Java/Openjdk/test/jdk/java/net/vthread/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 4 kB

Quelle InterruptHttp.java Sprache: JAVA

/*
* Copyright (c) 2020, 2022, 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.
*
* 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.
*/

/**
* @test
* @summary Test that HTTP connections can be interrupted
* @library /test/lib
* @enablePreview
* @compile InterruptHttp.java
* @run main/othervm InterruptHttp
*/

import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.net.URL;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicReference;
import jdk.test.lib.net.URIBuilder;

public class InterruptHttp {

    public static void main(String[] args) throws Exception {
        try (Server server = new Server().start()) {
            AtomicReference<Exception> exception = new AtomicReference<>();

            // http://host:port/hello
            URL url = URIBuilder.newBuilder()
                    .scheme("http")
                    .loopback()
                    .port(server.port())
                    .path("/hello")
                    .toURL();

            // start thread to connect to server
            Thread thread = Thread.ofVirtual().start(() -> {
                try {
                    try (InputStream in = url.openStream()) { }
                } catch (Exception e) {
                    exception.set(e);
                }
            });

            // give time for thread to block waiting for HTTP server
            while (server.connectionCount() == 0) {
                Thread.sleep(100);
            }
            thread.interrupt();
            thread.join();

            // HTTP request should fail with a SocketException
            Exception e = exception.get();
            if (!(e instanceof SocketException))
                throw new RuntimeException("Expected SocketException, got: " + e);

            // server should have accepted one connection
            if (server.connectionCount() != 1)
                throw new RuntimeException("Expected 1 HTTP connection");
        }
    }

    /**
     * Simple server that accepts connections but does not reply.
     */
    static class Server implements Closeable {
        private final ServerSocket listener;
        private final List<Socket> connections = new CopyOnWriteArrayList<>();

        Server() throws IOException {
            InetAddress lb = InetAddress.getLoopbackAddress();
            listener = new ServerSocket(0, -1, lb);
        }

        Server start() {
            Thread.ofVirtual().start(this::run);
            return this;
        }

        private void run() {
            try {
                while (true) {
                    Socket s = listener.accept();
                    connections.add(s);
                }
            } catch (Exception e) {
                if (!listener.isClosed()) {
                    e.printStackTrace();
                }
            }
        }

        int connectionCount() {
            return connections.size();
        }

        int port() {
            return listener.getLocalPort();
        }

        @Override
        public void close() throws IOException {
            connections.forEach(s -> {
                try { s.close(); } catch (Exception ignore) { }
            });
            listener.close();
        }
    }
}

quality85%

¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.