java.util.zip
Class CheckedInputStream
- AutoCloseable, Closeable
InputStream that computes a checksum of the data being read using a
supplied Checksum object.
Checksum | getChecksum()- Returns the Checksum object used.
|
int | read()- Reads one byte, updates the checksum and returns the read byte
(or -1 when the end of file was reached).
|
int | read(byte[] buf, int off, int len)- Reads at most len bytes in the supplied buffer and updates the checksum
with it.
|
long | skip(long n)- Skips n bytes by reading them in a temporary buffer and updating the
the checksum with that buffer.
|
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
getChecksum
public Checksum getChecksum()
Returns the Checksum object used. To get the data checksum computed so
far call getChecksum.getValue().
read
public int read()
throws IOException Reads one byte, updates the checksum and returns the read byte
(or -1 when the end of file was reached).
- read in interface FilterInputStream
read
public int read(byte[] buf,
int off,
int len)
throws IOException Reads at most len bytes in the supplied buffer and updates the checksum
with it. Returns the number of bytes actually read or -1 when the end
of file was reached.
- read in interface FilterInputStream
skip
public long skip(long n)
throws IOException Skips n bytes by reading them in a temporary buffer and updating the
the checksum with that buffer. Returns the actual number of bytes skiped
which can be less then requested when the end of file is reached.
- skip in interface FilterInputStream
CheckedInputStream.java - Compute checksum of data being read
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