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java.lang.Object java.io.InputStream org.apache.hadoop.mapred.IFileInputStream
@InterfaceAudience.Private @InterfaceStability.Unstable public class IFileInputStream
A checksum input stream, used for IFiles.
Used to validate the checksum of files created by IFileOutputStream
.
Constructor Summary | |
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IFileInputStream(InputStream in,
long len)
Create a checksum input stream that reads |
Method Summary | |
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void |
close()
Close the input stream. |
byte[] |
getChecksum()
|
long |
getPosition()
|
long |
getSize()
|
int |
read()
|
int |
read(byte[] b,
int off,
int len)
Read bytes from the stream. |
int |
readWithChecksum(byte[] b,
int off,
int len)
Read bytes from the stream. |
long |
skip(long n)
|
Methods inherited from class java.io.InputStream |
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available, mark, markSupported, read, reset |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public IFileInputStream(InputStream in, long len)
in
- The input stream to be verified for checksum.len
- The length of the input stream including checksum bytes.Method Detail |
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public void close() throws IOException
close
in interface Closeable
close
in class InputStream
IOException
public long skip(long n) throws IOException
skip
in class InputStream
IOException
public long getPosition()
public long getSize()
public int read(byte[] b, int off, int len) throws IOException
read
in class InputStream
IOException
public int readWithChecksum(byte[] b, int off, int len) throws IOException
IOException
public int read() throws IOException
read
in class InputStream
IOException
public byte[] getChecksum()
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