- java.lang.Object
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- java.io.OutputStream
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- java.io.FilterOutputStream
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- java.util.zip.CheckedOutputStream
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- 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
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Field Summary
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Fields declared in class java.io.FilterOutputStream
out
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Constructor Summary
Constructors Constructor Description CheckedOutputStream(OutputStream out, Checksum cksum)Creates an output stream with the specified Checksum.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ChecksumgetChecksum()Returns the Checksum for this output stream.voidwrite(byte[] b, int off, int len)Writes an array of bytes.voidwrite(int b)Writes a byte.-
Methods declared in class java.io.FilterOutputStream
close, flush, write
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Methods declared in class java.io.OutputStream
nullOutputStream
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Constructor Detail
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CheckedOutputStream
public CheckedOutputStream(OutputStream out, Checksum cksum)
Creates an output stream with the specified Checksum.- Parameters:
out- the output streamcksum- the checksum
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Method Detail
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write
public void write(int b) throws IOExceptionWrites a byte. Will block until the byte is actually written.- Overrides:
writein classFilterOutputStream- Parameters:
b- the byte to be written- Throws:
IOException- if an I/O error has occurred
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write
public void write(byte[] b, int off, int len) throws IOExceptionWrites an array of bytes. Will block until the bytes are actually written.- Overrides:
writein 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)
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getChecksum
public Checksum getChecksum()
Returns the Checksum for this output stream.- Returns:
- the Checksum
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