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java.lang.Object org.apache.commons.net.io.CopyStreamAdapter
public class CopyStreamAdapter
The CopyStreamAdapter will relay CopyStreamEvents to a list of listeners when either of its bytesTransferred() methods are called. Its purpose is to facilitate the notification of the progress of a copy operation performed by one of the static copyStream() methods in org.apache.commons.io.Util to multiple listeners. The static copyStream() methods invoke the bytesTransfered(long, int) of a CopyStreamListener for performance reasons and also because multiple listeners cannot be registered given that the methods are static.
CopyStreamEvent
,
CopyStreamListener
,
Util
Constructor Summary | |
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CopyStreamAdapter()
Creates a new copyStreamAdapter. |
Method Summary | |
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void |
addCopyStreamListener(CopyStreamListener listener)
Registers a CopyStreamListener to receive CopyStreamEvents. |
void |
bytesTransferred(CopyStreamEvent event)
This method is invoked by a CopyStreamEvent source after copying a block of bytes from a stream. |
void |
bytesTransferred(long totalBytesTransferred,
int bytesTransferred,
long streamSize)
This method is not part of the JavaBeans model and is used by the static methods in the org.apache.commons.io.Util class for efficiency. |
void |
removeCopyStreamListener(CopyStreamListener listener)
Unregisters a CopyStreamListener. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public CopyStreamAdapter()
Method Detail |
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public void bytesTransferred(CopyStreamEvent event)
bytesTransferred
in interface CopyStreamListener
event
- The CopyStreamEvent fired by the copying of a block of
bytes.public void bytesTransferred(long totalBytesTransferred, int bytesTransferred, long streamSize)
bytesTransferred
in interface CopyStreamListener
totalBytesTransferred
- The total number of bytes transferred
so far by the copy operation.bytesTransferred
- The number of bytes copied by the most recent
write.streamSize
- The number of bytes in the stream being copied.
This may be equal to CopyStreamEvent.UNKNOWN_STREAM_SIZE if
the size is unknown.public void addCopyStreamListener(CopyStreamListener listener)
listener
- The CopyStreamlistener to register.public void removeCopyStreamListener(CopyStreamListener listener)
listener
- The CopyStreamlistener to unregister.
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