org.apache.hadoop.fs.azure

Class SecureWasbRemoteCallHelper

java.lang.Object

org.apache.hadoop.fs.azure.WasbRemoteCallHelper

org.apache.hadoop.fs.azure.SecureWasbRemoteCallHelper

public class SecureWasbRemoteCallHelper
extends WasbRemoteCallHelper

Helper class the has constants and helper methods used in WASB when integrating with a remote http cred service which uses Kerberos and delegation tokens. Currently, remote service will be used to generate SAS keys, authorization and delegation token operations.

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG

Fields inherited from class org.apache.hadoop.fs.azure.WasbRemoteCallHelper

REMOTE_CALL_SUCCESS_CODE

Constructor Summary

Constructors

Constructor and Description
SecureWasbRemoteCallHelper(org.apache.hadoop.io.retry.RetryPolicy retryPolicy, boolean alwaysRequiresKerberosAuth, boolean isSpnegoTokenCachingEnabled)

Method Summary

Modifier and Type	Method and Description
org.apache.http.client.methods.HttpUriRequest	getHttpRequest(String[] urls, String path, List<org.apache.http.NameValuePair> queryParams, int urlIndex, String httpMethod, boolean requiresNewAuth)
String	makeRemoteRequest(String[] urls, String path, List<org.apache.http.NameValuePair> queryParams, String httpMethod) Helper method to make remote HTTP Get request.

Methods inherited from class org.apache.hadoop.fs.azure.WasbRemoteCallHelper

retryableRequest, updateHttpClient

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.slf4j.Logger LOG

Constructor Detail

SecureWasbRemoteCallHelper

public SecureWasbRemoteCallHelper(org.apache.hadoop.io.retry.RetryPolicy retryPolicy,
                                  boolean alwaysRequiresKerberosAuth,
                                  boolean isSpnegoTokenCachingEnabled)

Method Detail

makeRemoteRequest

public String makeRemoteRequest(String[] urls,
                                String path,
                                List<org.apache.http.NameValuePair> queryParams,
                                String httpMethod)
                         throws IOException

Description copied from class: WasbRemoteCallHelper

Helper method to make remote HTTP Get request.

Overrides:

makeRemoteRequest in class WasbRemoteCallHelper

Parameters:

urls - - Service urls to be used, if one fails try another.

path - - URL endpoint for the resource.

queryParams - - list of query parameters

httpMethod - - http Method to be used.

Returns:

Http Response body returned as a string. The caller is expected to semantically understand the response.

Throws:

IOException - when there an error in executing the remote http request.

getHttpRequest

public org.apache.http.client.methods.HttpUriRequest getHttpRequest(String[] urls,
                                                                    String path,
                                                                    List<org.apache.http.NameValuePair> queryParams,
                                                                    int urlIndex,
                                                                    String httpMethod,
                                                                    boolean requiresNewAuth)
                                                             throws URISyntaxException,
                                                                    IOException

Overrides:

getHttpRequest in class WasbRemoteCallHelper

Throws:

URISyntaxException

IOException