public class ChecksumValidatingInputStream extends InputStream implements Abortable
Constructor and Description |
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ChecksumValidatingInputStream(InputStream in,
SdkChecksum cksum,
long streamLength)
Creates an input stream using the specified Checksum, input stream, and length.
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Modifier and Type | Method and Description |
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void |
abort() |
void |
close() |
int |
read()
Reads one byte at a time from the input stream, updates the checksum.
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int |
read(byte[] buf,
int off,
int len)
Reads up to len bytes at a time from the input stream, updates the checksum.
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void |
reset()
Resets stream state, including the running checksum.
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available, mark, markSupported, read, skip
public ChecksumValidatingInputStream(InputStream in, SdkChecksum cksum, long streamLength)
in
- the input streamcksum
- the Checksum implementationstreamLength
- the total length of the expected stream (including the extra 4 bytes on the end).public int read() throws IOException
read
in class InputStream
IOException
public int read(byte[] buf, int off, int len) throws IOException
read
in class InputStream
buf
- buffer to write intooff
- offset in the buffer to write tolen
- maximum number of bytes to attempt to read.IOException
public void reset() throws IOException
reset
in class InputStream
IOException
public void close() throws IOException
close
in interface Closeable
close
in interface AutoCloseable
close
in class InputStream
IOException
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