Package i5.las2peer.persistency.helper

Class MultiArtifactHandler

java.lang.Object

i5.las2peer.persistency.helper.MultiArtifactHandler

All Implemented Interfaces:

StorageArtifactHandler, StorageExceptionHandler

public class MultiArtifactHandler
extends Object
implements StorageArtifactHandler, StorageExceptionHandler

This class is used to handle the lookup and retrieve process for a bunch of NetworkArtifacts. It gathers all parts till it received the necessary amount specified by the first part given. After that it calls the respective handlers given, same for exceptions.

Constructor Summary

Constructors

Constructor	Description
MultiArtifactHandler(int numberOfParts, StoragePartsHandler partsHandler, StorageExceptionHandler exceptionHandler)	Initiates this lookup result collection with the given first part.

Method Summary

Modifier and Type	Method	Description
void	onException(Exception e)	This method is called in its own thread to handle the given exception.
void	onReceive(AbstractArtifact artifact)

Methods inherited from class java.lang.Object

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

Constructor Details

MultiArtifactHandler

public MultiArtifactHandler(int numberOfParts,
 StoragePartsHandler partsHandler,
 StorageExceptionHandler exceptionHandler)

Initiates this lookup result collection with the given first part. The number of parts is retrieved from the given first part.

Parameters:

numberOfParts - The number of artifacts that must be retrieved to consider a full set.

partsHandler - The result handler that gets all retrieved parts as a list.

exceptionHandler - The exception handler that should be called, if an exception occurs.

Method Details

onReceive

public void onReceive(AbstractArtifact artifact)

Specified by:

onReceive in interface StorageArtifactHandler

onException

public void onException(Exception e)

Description copied from interface: StorageExceptionHandler

This method is called in its own thread to handle the given exception.

Specified by:

onException in interface StorageExceptionHandler

Parameters:

e - An execption that occurred during a network operation. Usually the reason or metadata should be known from the surrounding context and should be provided to this handler, too.