Class HttpCredentialsAdapter

java.lang.Object

com.google.auth.http.HttpCredentialsAdapter

All Implemented Interfaces:

com.google.api.client.http.HttpRequestInitializer, com.google.api.client.http.HttpUnsuccessfulResponseHandler

public class HttpCredentialsAdapter
extends Object
implements com.google.api.client.http.HttpRequestInitializer, com.google.api.client.http.HttpUnsuccessfulResponseHandler

A wrapper for using Credentials with the Google API Client Libraries for Java with Http.

Field Summary

Fields

Modifier and Type	Field	Description
private final Credentials	credentials
private static final Pattern	INVALID_TOKEN_ERROR	In case an abnormal HTTP response is received with WWW-Authenticate header, and its value contains this error pattern, we will try to refresh the token.
private static final Logger	LOGGER

Constructor Summary

Constructors

Constructor	Description
HttpCredentialsAdapter(Credentials credentials)

Method Summary

Modifier and Type	Method	Description
Credentials	getCredentials()	A getter for the credentials instance being used
boolean	handleResponse(com.google.api.client.http.HttpRequest request, com.google.api.client.http.HttpResponse response, boolean supportsRetry)
void	initialize(com.google.api.client.http.HttpRequest request)

Methods inherited from class Object

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

Field Details

LOGGER

private static final Logger LOGGER

INVALID_TOKEN_ERROR

private static final Pattern INVALID_TOKEN_ERROR

In case an abnormal HTTP response is received with WWW-Authenticate header, and its value contains this error pattern, we will try to refresh the token.

credentials

private final Credentials credentials

Constructor Details

HttpCredentialsAdapter

public HttpCredentialsAdapter(Credentials credentials)

Parameters:

credentials - Credentials instance to adapt for HTTP

Method Details

getCredentials

public Credentials getCredentials()

A getter for the credentials instance being used

initialize

public void initialize(com.google.api.client.http.HttpRequest request)
                throws IOException

Initialize the HTTP request prior to execution.

Specified by:

initialize in interface com.google.api.client.http.HttpRequestInitializer

Parameters:

request - HTTP request

Throws:

IOException

handleResponse

public boolean handleResponse(com.google.api.client.http.HttpRequest request,
 com.google.api.client.http.HttpResponse response,
 boolean supportsRetry)

Checks if WWW-Authenticate exists and contains a "Bearer" value (see rfc6750 section 3.1 for more details). If so, it refreshes the token in case the error code contains invalid_token. If there is no "Bearer" in WWW-Authenticate and the status code is HttpStatusCodes.STATUS_CODE_UNAUTHORIZED it refreshes the token. If the token refresh throws an I/O exception, this implementation will log the exception and return false.

Specified by:

handleResponse in interface com.google.api.client.http.HttpUnsuccessfulResponseHandler