com.rt.storage.api.client.http.FileContent Maven / Gradle / Ivy

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package com.rt.storage.api.client.http;

import com.rt.storage.api.client.util.Preconditions;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;

/**
 * Concrete implementation of {@link AbstractInputStreamContent} that generates repeatable input
 * streams based on the contents of a file.
 *
 * Sample use:
 *
 * 
 * 
 * private static void setRequestJpegContent(HttpRequest request, File jpegFile) {
 * request.setContent(new FileContent("image/jpeg", jpegFile));
 * }
 * 
 * 
 *
 * Implementation is not thread-safe.
 *
 * @since 1.4
 */
public final class FileContent extends AbstractInputStreamContent {

  private final File file;

  /**
   * @param type Content type or {@code null} for none
   * @param file file
   * @since 1.5
   */
  public FileContent(String type, File file) {
    super(type);
    this.file = Preconditions.checkNotNull(file);
  }

  public long getLength() {
    return file.length();
  }

  public boolean retrySupported() {
    return true;
  }

  @Override
  public InputStream getInputStream() throws FileNotFoundException {
    return new FileInputStream(file);
  }

  /**
   * Returns the file.
   *
   * @since 1.5
   */
  public File getFile() {
    return file;
  }

  @Override
  public FileContent setType(String type) {
    return (FileContent) super.setType(type);
  }

  @Override
  public FileContent setCloseInputStream(boolean closeInputStream) {
    return (FileContent) super.setCloseInputStream(closeInputStream);
  }
}