Resource.java

package jetbrains.mps.core.tool.environment.classloading;

/*Generated by MPS */

import java.net.URL;
import java.io.InputStream;
import java.io.IOException;
import java.io.ByteArrayOutputStream;

/*package*/ abstract class Resource {
  /*package*/ abstract URL getURL();
  protected abstract InputStream getInputStream() throws IOException;
  protected abstract int getContentLength() throws IOException;
  /*package*/ byte[] getBytes() throws IOException {
    InputStream in = getInputStream();
    if (in == null) {
      throw new IOException("No stream");
    }
    int size = getContentLength();
    byte[] buffer = new byte[8192];
    ByteArrayOutputStream out = new ByteArrayOutputStream((size > 0 ? size : buffer.length));
    int count;
    while ((count = in.read(buffer)) >= 0) {
      out.write(buffer, 0, count);
    }
    out.flush();
    in.close();
    return out.toByteArray();
  }
}