org.mule.extension.file.common.api.stream

Class LazyStreamSupplier

java.lang.Object

org.mule.extension.file.common.api.stream.LazyStreamSupplier

All Implemented Interfaces:

Supplier<InputStream>

public final class LazyStreamSupplier
extends Object
implements Supplier<InputStream>

Decorate a Supplier so that the first invokation to the get() method is actually forwarded to it, but subsequent ones return the same cached value. This happens on a thread-safe (yet low contention) manner

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
LazyStreamSupplier(Supplier<InputStream> streamFactory)

Method Summary

Modifier and Type	Method and Description
InputStream	get()
boolean	isSupplied()

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyStreamSupplier

public LazyStreamSupplier(Supplier<InputStream> streamFactory)

Method Detail

get

public InputStream get()

Specified by:

get in interface Supplier<InputStream>

Returns:

a InputStream

isSupplied

public boolean isSupplied()

Returns:

whether get() has ever been invoked on this instance