- java.lang.Object
- java.io.OutputStream
- java.io.FilterOutputStream
- java.util.zip.CheckedOutputStream
- All Implemented Interfaces:
Closeable
,Flushable
,AutoCloseable
public class CheckedOutputStream extends FilterOutputStream
An output stream that also maintains a checksum of the data being written. The checksum can then be used to verify the integrity of the output data.- Since:
- 1.1
- See Also:
Checksum
Field Summary
Fields declared in class java.io.FilterOutputStream
out
Constructor Summary
Constructors Constructor Description CheckedOutputStream(OutputStream out, Checksum cksum)
Creates an output stream with the specified Checksum.
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Checksum
getChecksum()
Returns the Checksum for this output stream.void
write(byte[] b, int off, int len)
Writes an array of bytes.void
write(int b)
Writes a byte.Methods declared in class java.io.FilterOutputStream
close, flush, write
Methods declared in class java.io.OutputStream
nullOutputStream
Constructor Detail
CheckedOutputStream
public CheckedOutputStream(OutputStream out, Checksum cksum)
Creates an output stream with the specified Checksum.- Parameters:
out
- the output streamcksum
- the checksum
Method Detail
write
public void write(int b) throws IOException
Writes a byte. Will block until the byte is actually written.- Overrides:
write
in classFilterOutputStream
- Parameters:
b
- the byte to be written- Throws:
IOException
- if an I/O error has occurred
write
public void write(byte[] b, int off, int len) throws IOException
Writes an array of bytes. Will block until the bytes are actually written.- Overrides:
write
in classFilterOutputStream
- Parameters:
b
- the data to be writtenoff
- the start offset of the datalen
- the number of bytes to be written- Throws:
IOException
- if an I/O error has occurred- See Also:
FilterOutputStream.write(int)
getChecksum
public Checksum getChecksum()
Returns the Checksum for this output stream.- Returns:
- the Checksum