com.github.marschall.pathclassloader.PathURLConnection Maven / Gradle / Ivy

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package com.github.marschall.pathclassloader;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;

final class PathURLConnection extends URLConnection {

  private final Path path;

  PathURLConnection(URL url, Path path) {
    super(url);
    this.path = path;
  }

  @Override
  public void connect() throws IOException {
    // nothing to do
  }

  @Override
  public long getContentLengthLong() {
    try {
      return Files.size(this.path);
    } catch (IOException e) {
      throw new RuntimeException("could not get size of: " + this.path, e);
    }
  }

  @Override
  public InputStream getInputStream() throws IOException {
    return Files.newInputStream(this.path);
  }

  @Override
  public OutputStream getOutputStream() throws IOException {
    return Files.newOutputStream(this.path);
  }

  @Override
  public String getContentType() {
    try {
      return Files.probeContentType(this.path);
    } catch (IOException e) {
      throw new RuntimeException("could not get content type of: " + this.path, e);
    }
  }
  
  @Override
  public long getLastModified() {
    try {
      BasicFileAttributes attributes = Files.readAttributes(this.path, BasicFileAttributes.class);
      return attributes.lastModifiedTime().toMillis();
    } catch (IOException e) {
      throw new RuntimeException("could not get last modified time of: " + this.path, e);
    }
  }

}