org.apache.hadoop.fs.azure

Class SendRequestIntercept

java.lang.Object

com.microsoft.azure.storage.StorageEvent<com.microsoft.azure.storage.SendingRequestEvent>

org.apache.hadoop.fs.azure.SendRequestIntercept

All Implemented Interfaces:

EventListener

@InterfaceAudience.Private
public final class SendRequestIntercept
extends com.microsoft.azure.storage.StorageEvent<com.microsoft.azure.storage.SendingRequestEvent>

Manages the lifetime of binding on the operation contexts to intercept send request events to Azure storage and allow concurrent OOB I/Os.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.commons.logging.Log	LOG

Method Summary

Modifier and Type	Method and Description
static void	bind(com.microsoft.azure.storage.OperationContext opContext) Binds a new lister to the operation context so the WASB file system can appropriately intercept sends and allow concurrent OOB I/Os.
void	eventOccurred(com.microsoft.azure.storage.SendingRequestEvent sendEvent) Handler which processes the sending request event from Azure SDK.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Method Detail

bind

public static void bind(com.microsoft.azure.storage.OperationContext opContext)

Binds a new lister to the operation context so the WASB file system can appropriately intercept sends and allow concurrent OOB I/Os. This by-passes the blob immutability check when reading streams.

Parameters:

opContext - the operation context assocated with this request.

eventOccurred

public void eventOccurred(com.microsoft.azure.storage.SendingRequestEvent sendEvent)

Handler which processes the sending request event from Azure SDK. The handler simply sets reset the conditional header to make all read requests unconditional if reads with concurrent OOB writes are allowed.

Specified by:

eventOccurred in class com.microsoft.azure.storage.StorageEvent<com.microsoft.azure.storage.SendingRequestEvent>

Parameters:

sendEvent - - send event context from Windows Azure SDK.