BlockInputStream.java

/** Copyright (c) 2010 Scott A. Crosby. <scott@sacrosby.com>

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as 
   published by the Free Software Foundation, either version 3 of the 
   License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

package crosby.binary.file;

import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;

public class BlockInputStream implements Closeable {
    // TODO: Should be seekable input stream!
    public BlockInputStream(InputStream input, BlockReaderAdapter adaptor) {
        this.input = input;
        this.adaptor = adaptor;
    }

    public void process() throws Exception {
      try {
        while (input.available() > 0) {
          FileBlock.process(input, adaptor);
        }
        adaptor.complete();
      } catch (Exception e) {
        adaptor.failure(e);
      }
    }

    @Override
    public void close() throws IOException {
        input.close();
    }

    InputStream input;
    BlockReaderAdapter adaptor;
}