org.apache.nifi.controller.repository.io

Class ContentClaimInputStream

java.lang.Object

java.io.InputStream

org.apache.nifi.controller.repository.io.ContentClaimInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class ContentClaimInputStream
extends InputStream

An InputStream that is provided a Content Repository, Content Claim, and offset into the Content Claim where a FlowFile's content begins, and is capable of reading the content from the Content Repository, as well as providing the ability to use mark(int)/reset() in order to re-read content without buffering it.

Field Summary

Fields

Modifier and Type	Field and Description
private long	bytesConsumed
private long	claimOffset
private ContentClaim	contentClaim
private ContentRepository	contentRepository
private long	currentOffset
private InputStream	delegate
private long	markOffset

Constructor Summary

Constructors

Constructor and Description
ContentClaimInputStream(ContentRepository contentRepository, ContentClaim contentClaim, long claimOffset)

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
private void	formDelegate()
long	getBytesConsumed()
long	getCurrentOffset()
private InputStream	getDelegate()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

contentRepository

private final ContentRepository contentRepository

contentClaim

private final ContentClaim contentClaim

claimOffset

private final long claimOffset

delegate

private InputStream delegate

bytesConsumed

private long bytesConsumed

currentOffset

private long currentOffset

markOffset

private long markOffset

Constructor Detail

ContentClaimInputStream

public ContentClaimInputStream(ContentRepository contentRepository,
                               ContentClaim contentClaim,
                               long claimOffset)

Method Detail

getDelegate

private InputStream getDelegate()
                         throws IOException

Throws:

IOException

getBytesConsumed

public long getBytesConsumed()

getCurrentOffset

public long getCurrentOffset()

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

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

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

mark

public void mark(int readlimit)

Overrides:

mark in class InputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException

formDelegate

private void formDelegate()
                   throws IOException

Throws:

IOException