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Panda Core is the core module of Panda Framework, it contains commonly used utility classes similar to apache-commons.

There is a newer version: 1.8.0

package panda.io.stream;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FilterInputStream;
import java.io.IOException;


/**
 * automatically delete file when the input stream is closed.
 */
public class AutoDeleteInputStream extends FilterInputStream {
	
	private File file;
	
	protected AutoDeleteInputStream(File f) throws FileNotFoundException {
		super(new FileInputStream(f));
		this.file = f;
	}
	
	public int read() throws IOException {
		return super.read();
	}
	
	public int read(byte[] b) throws IOException {
		return super.read(b);
	}
	
	public int read(byte[] b, int off, int len) throws IOException {
		return super.read(b, off, len);
	}
	
	public void close() throws IOException {
		super.close();
		file.delete();
	}
	
	protected void finalize() throws Throwable {
		file.delete();
		super.finalize();
	}
	
}