com.google.cloud.bigtable.grpc.io
Class CredentialInterceptorCache
- java.lang.Object
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- com.google.cloud.bigtable.grpc.io.CredentialInterceptorCache
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public class CredentialInterceptorCache extends Object
CachesRefreshingOAuth2CredentialsInterceptorfor default authorization cases. In other types of authorization, such as file based Credentials, it will create a new one.- Version:
- $Id: $Id
- Author:
- sduskis
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method and Description io.grpc.ClientInterceptorgetCredentialsInterceptor(CredentialOptions credentialOptions, RetryOptions retryOptions)GivenCredentialOptionsthat define how to look up credentials, do the following: Look up the credentials If there are credentials, create a gRPC interceptor that gets OAuth2 security tokens and add that token as a header on all calls.static CredentialInterceptorCachegetInstance()Getter for the fieldinstance.
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Method Detail
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getInstance
public static CredentialInterceptorCache getInstance()
Getter for the fieldinstance.- Returns:
- a
CredentialInterceptorCacheobject.
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getCredentialsInterceptor
public io.grpc.ClientInterceptor getCredentialsInterceptor(CredentialOptions credentialOptions, RetryOptions retryOptions) throws IOException, GeneralSecurityException
GivenCredentialOptionsthat define how to look up credentials, do the following:- Look up the credentials
- If there are credentials, create a gRPC interceptor that gets OAuth2 security tokens and
add that token as a header on all calls.
NOTE:RefreshingOAuth2CredentialsInterceptorensures that the token stays fresh. It does token lookups asynchronously so that the calls themselves take as little performance penalty as possible. - Cache the interceptor in step #2 if the
CredentialOptionsuses default application credentials
- Parameters:
credentialOptions- Defines how credentials should be achievedretryOptions- aRetryOptionsobject.- Returns:
- a HeaderInterceptor
- Throws:
IOException- if any.GeneralSecurityException- if any.
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