Package org.apache.sis.storage

Class ProbeInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

org.apache.sis.storage.ProbeInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

final class ProbeInputStream
extends FilterInputStream

A temporary input stream used for probing purposes. This stream does not allow mark/reset operations because the mark is reserved for this class. The close() method closes this stream but not the wrapped stream, which is only reset.

Since:

1.2

Version:

1.2

See Also:

• ProbeReader
• DataStoreProvider.probeContent(StorageConnector, Class, Prober)

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
ProbeInputStream(StorageConnector owner, InputStream input)	Creates a new input stream which delegates everything to the given input except the mark/reset operations.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this stream and resets the wrapped stream to its original position.
void	mark(int readlimit)	Does nothing since marks are not supported on this input stream.
boolean	markSupported()	Notifies the caller that marks are not supported on this input stream.
void	reset()	Throws an exception since marks are not supported on this input stream.

Methods inherited from class java.io.FilterInputStream

available, read, read, read, skip

Methods inherited from class java.lang.Object

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

Constructor Details

ProbeInputStream

ProbeInputStream(StorageConnector owner,
 InputStream input)
          throws IOException,
DataStoreException

Creates a new input stream which delegates everything to the given input except the mark/reset operations.

Throws:

IOException

DataStoreException

Method Details

markSupported

public boolean markSupported()

Notifies the caller that marks are not supported on this input stream.

Overrides:

markSupported in class FilterInputStream

mark

public void mark(int readlimit)

Does nothing since marks are not supported on this input stream. Note that doing nothing is the behavior of the default InputStream.mark(int) implementation. In particular, we cannot declare the checked IOException here.

Overrides:

mark in class FilterInputStream

reset

public void reset()
           throws IOException

Throws an exception since marks are not supported on this input stream.

Overrides:

reset in class FilterInputStream

Throws:

IOException

close

public void close()
           throws IOException

Closes this stream and resets the wrapped stream to its original position.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class FilterInputStream

Throws:

IOException