001/*
002 * Copyright (c) 2010-2026 Mark Allen, Norbert Bartels.
003 *
004 * Permission is hereby granted, free of charge, to any person obtaining a copy
005 * of this software and associated documentation files (the "Software"), to deal
006 * in the Software without restriction, including without limitation the rights
007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
008 * copies of the Software, and to permit persons to whom the Software is
009 * furnished to do so, subject to the following conditions:
010 *
011 * The above copyright notice and this permission notice shall be included in
012 * all copies or substantial portions of the Software.
013 *
014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
020 * THE SOFTWARE.
021 */
022package com.restfb.request;
023
024import java.io.Closeable;
025import java.io.IOException;
026import java.io.OutputStream;
027import java.net.http.HttpRequest.BodyPublisher;
028import java.net.http.HttpRequest.BodyPublishers;
029import java.nio.file.Files;
030import java.nio.file.Path;
031import java.nio.file.StandardOpenOption;
032
033/**
034 * Streams request bodies via a temporary file so Java 11 HttpClient can re-read them.
035 */
036public class TempFileBodyPublisher implements Closeable {
037
038  private final Path tempFile;
039  private final OutputStream outputStream;
040  private boolean closed;
041
042  public TempFileBodyPublisher() throws IOException {
043    tempFile = Files.createTempFile("restfb-request", ".bin");
044    outputStream = Files.newOutputStream(tempFile, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE);
045  }
046
047  public OutputStream outputStream() {
048    return outputStream;
049  }
050
051  public BodyPublisher build() throws IOException {
052    outputStream.flush();
053    outputStream.close();
054    closed = true;
055    return BodyPublishers.ofFile(tempFile);
056  }
057
058  @Override
059  public void close() throws IOException {
060    if (!closed) {
061      outputStream.close();
062      closed = true;
063    }
064    Files.deleteIfExists(tempFile);
065  }
066}