alluxio.proxy.s3

Class S3RestUtils

java.lang.Object

alluxio.proxy.s3.S3RestUtils

public final class S3RestUtils
extends Object

Utilities for handling S3 REST calls.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	S3RestUtils.RestCallable<T> An interface representing a callable.

Method Summary

Modifier and Type	Method and Description
static <T> javax.ws.rs.core.Response	call(String resource, S3RestUtils.RestCallable<T> callable) Calls the given S3RestUtils.RestCallable and handles any exceptions thrown.
static String	getMultipartTemporaryDirForObject(String bucketPath, String objectKey)
static String	quoteETag(String etag)
static String	toS3Date(long epoch)

Methods inherited from class java.lang.Object

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

Method Detail

call

public static <T> javax.ws.rs.core.Response call(String resource,
                                                 S3RestUtils.RestCallable<T> callable)

Calls the given S3RestUtils.RestCallable and handles any exceptions thrown.

Type Parameters:

T - the return type of the callable

Parameters:

resource - the resource (bucket or object) to be operated on

callable - the callable to call

Returns:

the response object

getMultipartTemporaryDirForObject

public static String getMultipartTemporaryDirForObject(String bucketPath,
                                                       String objectKey)

Parameters:

bucketPath - the bucket path like "/bucket", "/mount/point/bucket"

objectKey - the object key like "img/2017/9/1/s3.jpg"

Returns:

the temporary directory used to hold parts of the object during multipart uploads

toS3Date

public static String toS3Date(long epoch)

Parameters:

epoch - the milliseconds from the epoch

Returns:

the string representation of the epoch in the S3 date format

quoteETag

public static String quoteETag(String etag)

Parameters:

etag - the entity tag to be used in the ETag field in the HTTP header

Returns:

the etag surrounded by quotes, if etag is already surrounded by quotes, return itself