2.11 SDK configuration

SDK configuration

To use the SDK, you need to provide valid CenturyLink credentials.

Credential providers

You can select from several possible credential providers.

• DefaultCredentialsProvider is a wrapper for other providers. It is used by default if the SDK default constructor is called.
• EnvironmentVariableCredentialsProvider loads credentials from environment variables. The default property keys for the username and password are CLC_USERNAME and CLC_PASSWORD.
• PropertiesFileCredentialsProvider loads user-credentials from a properties file located in the application's classpath. The default name of the classpath file is centurylink-cloud.properties.
• StaticCredentialsProvider loads credentials directly through the constructor.
• SystemVariableCredentialsProvider loads credentials from Java VM variables. The default property keys for the username and password are clc.username and clc.password.

Here is an example:

ClcSdk sdk = 
    new ClcSdk(
        new StaticCredentialsProvider("username", "password"),
        SdkConfiguration.builder()
            .maxRetries(10)
            .proxyHost("localhost")
            .proxyPort(8081)
            .proxyScheme("http")
            .proxyUsername("proxyUser")
            .proxyPassword("proxyPassword")
            .socketTimeout(5000)
            .build()
    );

SDK configuration properties

Additionally, you can provide the following configuration properties:

Name	Type	Description	Required
maxRetries	int	The maximum allowed number of re-tries	No
proxyHost	String	The proxy host name	No
proxyPort	int	The proxy port. If it is specified, proxyHost must be specified too.	No
proxyScheme	String	The proxy scheme (e.g. "http" or "https"). If it is specified, proxyHost must be specified too. The default value is "http".	No
proxyUsername	String	The proxy user name	No
proxyPassword	String	The proxy password	No
socketTimeout	long	The socket timeout in milliseconds	No