Package org.apache.druid.data.input.impl

Class RetryingInputStream<T>

java.lang.Object

java.io.InputStream

org.apache.druid.data.input.impl.RetryingInputStream<T>

Type Parameters:

T - object type

All Implemented Interfaces:

Closeable, AutoCloseable

public class RetryingInputStream<T>
extends InputStream

This class is responsible for re-opening the underlying input stream for the input object on the given retryCondition.

Constructor Summary

Constructors

Constructor	Description
RetryingInputStream(T object, ObjectOpenFunction<T> objectOpenFunction, com.google.common.base.Predicate<Throwable> retryCondition, Integer maxTries)

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
long	skip(long n)

Methods inherited from class java.io.InputStream

mark, markSupported, nullInputStream, readAllBytes, readNBytes, readNBytes, reset, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Details

RetryingInputStream

public RetryingInputStream(T object,
 ObjectOpenFunction<T> objectOpenFunction,
 com.google.common.base.Predicate<Throwable> retryCondition,
 @Nullable
 Integer maxTries)
                    throws IOException

Parameters:

object - The object entity to open

objectOpenFunction - How to open the object

retryCondition - A predicate on a throwable to indicate if stream should retry.

maxTries - The maximum times to try. Defaults to RetryUtils.DEFAULT_MAX_TRIES when null

Throws:

IOException

Method Details

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

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException