Package org.opensearch.index.store.remote.utils

Class TransferManager

java.lang.Object

org.opensearch.index.store.remote.utils.TransferManager

public class TransferManager
extends Object

This acts as entry point to fetch BlobFetchRequest and return actual IndexInput. Utilizes the BlobContainer interface to read snapshot files located within a repository. This basically adapts BlobContainer snapshots files into IndexInput

Opensearch.internal:

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	TransferManager.StreamReader	Functional interface to get an InputStream for a file at a certain offset and size

Constructor Summary

Constructors

Constructor	Description
TransferManager(TransferManager.StreamReader streamReader, FileCache fileCache)

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.store.IndexInput	fetchBlob(BlobFetchRequest blobFetchRequest)	Given a blobFetchRequestList, return it's corresponding IndexInput.

Methods inherited from class java.lang.Object

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

Constructor Details

TransferManager

public TransferManager(TransferManager.StreamReader streamReader,
 FileCache fileCache)

Method Details

fetchBlob

public org.apache.lucene.store.IndexInput fetchBlob(BlobFetchRequest blobFetchRequest)
                                             throws IOException

Given a blobFetchRequestList, return it's corresponding IndexInput.

Parameters:

blobFetchRequest - to fetch

Returns:

future of IndexInput augmented with internal caching maintenance tasks

Throws:

IOException