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Class java.util.zip.CheckedInputStream

java.lang.Object
   |
   +----java.io.InputStream
           |
           +----java.io.FilterInputStream
                   |
                   +----java.util.zip.CheckedInputStream

public class CheckedInputStream

extends FilterInputStream

See Also:

Checksum

CheckedInputStream(InputStream, Checksum)

Creates an input stream using the specified Checksum.

getChecksum()

Returns the Checksum for this input stream.

read()

Reads a byte.

read(byte[], int, int)

Reads into an array of bytes.

skip(long)

Skips specified number of bytes of input.

 public CheckedInputStream(InputStream in,
                           Checksum cksum)

Creates an input stream using the specified Checksum.

Parameters:

in - the input stream

cksum - the Checksum

 public int read() throws IOException

Reads a byte. Will block if no input is available.

Returns:

the byte read, or -1 if the end of the stream is reached.

Throws: IOException

if an I/O error has occurred

Overrides:

read in class FilterInputStream

 public int read(byte buf[],
                 int off,
                 int len) throws IOException

Reads into an array of bytes. Will block until some input is available.

Parameters:

buf - the buffer into which the data is read

off - the start offset of the data

len - the maximum number of bytes read

Returns:

the actual number of bytes read, or -1 if the end of the stream is reached.

Throws: IOException

if an I/O error has occurred

Overrides:

read in class FilterInputStream

 public long skip(long n) throws IOException

Skips specified number of bytes of input.

Parameters:

n - the number of bytes to skip

Returns:

the actual number of bytes skipped

Throws: IOException

if an I/O error has occurred

Overrides:

skip in class FilterInputStream

 public Checksum getChecksum()

Returns the Checksum for this input stream.

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