org.apache.hadoop.fs.s3a.impl.streams

Class AbstractObjectInputStreamFactory

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.fs.s3a.impl.streams.AbstractObjectInputStreamFactory

All Implemented Interfaces:

Closeable, AutoCloseable, ObjectInputStreamFactory, org.apache.hadoop.fs.StreamCapabilities, org.apache.hadoop.service.Service

Direct Known Subclasses:

AnalyticsStreamFactory, ClassicObjectInputStreamFactory, PrefetchingInputStreamFactory

public abstract class AbstractObjectInputStreamFactory
extends org.apache.hadoop.service.AbstractService
implements ObjectInputStreamFactory

Base implementation of ObjectInputStreamFactory.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.fs.s3a.impl.streams.ObjectInputStreamFactory

ObjectInputStreamFactory.StreamFactoryCallbacks

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Nested classes/interfaces inherited from interface org.apache.hadoop.fs.StreamCapabilities

org.apache.hadoop.fs.StreamCapabilities.StreamCapability

Field Summary

Fields inherited from interface org.apache.hadoop.fs.StreamCapabilities

ABORTABLE_STREAM, DROPBEHIND, HFLUSH, HSYNC, IOSTATISTICS, IOSTATISTICS_CONTEXT, PREADBYTEBUFFER, READAHEAD, READBYTEBUFFER, UNBUFFER, VECTOREDIO, VECTOREDIO_BUFFERS_SLICED

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractObjectInputStreamFactory(String name) Constructor.

Method Summary

Modifier and Type	Method and Description
void	bind(FactoryBindingParameters factoryBindingParameters) Bind to the callbacks.
protected ObjectInputStreamFactory.StreamFactoryCallbacks	callbacks() Get the factory callbacks.
boolean	hasCapability(String capability) Return base capabilities of all stream factories, defining what the base ObjectInputStream class does.

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, serviceInit, serviceStart, serviceStop, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.fs.s3a.impl.streams.ObjectInputStreamFactory

factoryRequirements, readObject, streamType

Methods inherited from interface org.apache.hadoop.service.Service

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, registerServiceListener, start, stop, unregisterServiceListener, waitForServiceToStop

Constructor Detail

AbstractObjectInputStreamFactory

protected AbstractObjectInputStreamFactory(String name)

Constructor.

Parameters:

name - service name.

Method Detail

bind

public void bind(FactoryBindingParameters factoryBindingParameters)
          throws IOException

Bind to the callbacks.

The base class checks service state then stores the callback interface.

Specified by:

bind in interface ObjectInputStreamFactory

Parameters:

factoryBindingParameters - parameters for the factory binding

Throws:

IOException - if IO problems.

hasCapability

public boolean hasCapability(String capability)

Return base capabilities of all stream factories, defining what the base ObjectInputStream class does. This also includes the probe for stream type capability.

Specified by:

hasCapability in interface org.apache.hadoop.fs.StreamCapabilities

Parameters:

capability - string to query the stream support for.

Returns:

true if implemented

callbacks

protected ObjectInputStreamFactory.StreamFactoryCallbacks callbacks()

Get the factory callbacks.

Returns:

callbacks.