net.sf.mmm.util.io.base
Class StreamUtilImpl.ReaderTransferrer

java.lang.Object
  net.sf.mmm.util.io.base.StreamUtilImpl.AbstractAsyncTransferrer
      net.sf.mmm.util.io.base.StreamUtilImpl.BaseTransferrer
          net.sf.mmm.util.io.base.StreamUtilImpl.ReaderTransferrer

All Implemented Interfaces:

Callable<Long>, Stoppable

Enclosing class:

StreamUtilImpl

protected class StreamUtilImpl.ReaderTransferrer
extends StreamUtilImpl.BaseTransferrer

This inner class is used to transfer a Reader to a Writer.

Field Summary

private Writer	destination The destination to write to.
private boolean	keepDestinationOpen true if destination should be closed.
private Reader	source The source to read from (to copy).

Constructor Summary

StreamUtilImpl.ReaderTransferrer(Reader source, Writer destination, boolean keepDestinationOpen, TransferCallback callback)
The constructor.

Method Summary

long	transfer() This method performs the actual transfer.

Methods inherited from class net.sf.mmm.util.io.base.StreamUtilImpl.BaseTransferrer

call

Methods inherited from class net.sf.mmm.util.io.base.StreamUtilImpl.AbstractAsyncTransferrer

isCompleted, isStopped, setCompleted, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

source

private final Reader source

The source to read from (to copy).

destination

private final Writer destination

The destination to write to.

keepDestinationOpen

private final boolean keepDestinationOpen

true if destination should be closed.

Constructor Detail

StreamUtilImpl.ReaderTransferrer

public StreamUtilImpl.ReaderTransferrer(Reader source,
                                        Writer destination,
                                        boolean keepDestinationOpen,
                                        TransferCallback callback)

The constructor.

Parameters:

source - is Reader to read from.

destination - the Writer to write to.

keepDestinationOpen - true if the destination should be closed.

callback - is the callback or null.

See Also:

StreamUtilImpl.transfer(Reader, Writer, boolean)

Method Detail

transfer

public long transfer()
              throws IOException

This method performs the actual transfer.

Specified by:

transfer in class StreamUtilImpl.BaseTransferrer

Returns:

the number of bytes that have been transferred.

Throws:

IOException - if the transfer failed.