1 /*

     2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  */

    23 

    24 import org.reactivestreams.tck.TestEnvironment;

    25 import org.reactivestreams.tck.flow.FlowPublisherVerification;

    26 

    27 import java.io.IOException;

    28 import java.io.UncheckedIOException;

    29 import java.net.http.HttpRequest.BodyPublishers;

    30 import java.nio.ByteBuffer;

    31 import java.nio.file.Files;

    32 import java.nio.file.Path;

    33 import java.util.concurrent.Flow.Publisher;

    34 import java.util.concurrent.atomic.AtomicLong;

    35 

    36 /* See TckDriver.java for more information */

    37 public class BodyPublishersOfFile

    38         extends FlowPublisherVerification<ByteBuffer> {

    39 

    40     private static final int ELEMENT_SIZE = 16 * 1024;

    41     private static final AtomicLong UNIQUE_NUMBERS = new AtomicLong();

    42 

    43     public BodyPublishersOfFile() {

    44         super(new TestEnvironment(450L));

    45     }

    46 

    47     @Override

    48     public Publisher<ByteBuffer> createFlowPublisher(long nElements) {

    49         try {

    50             Path f = createFile(nElements * ELEMENT_SIZE);

    51             return BodyPublishers.ofFile(f);

    52         } catch (IOException e) {

    53             throw new UncheckedIOException(e);

    54         }

    55     }

    56 

    57     private static Path createFile(long nBytes) throws IOException {

    58         String name = "f" + UNIQUE_NUMBERS.getAndIncrement();

    59         Path f = Files.createFile(Path.of(name));

    60         return Files.write(f, S.arrayOfNRandomBytes(nBytes));

    61     }

    62 

    63     @Override

    64     public Publisher<ByteBuffer> createFailedFlowPublisher() {

    65         return null;

    66     }

    67 

    68     @Override

    69     public long maxElementsFromPublisher() {

    70         return 21;

    71     }

    72 }