com.cloudera.gertrude.server

Class GertrudeUtils

java.lang.Object

com.cloudera.gertrude.server.GertrudeUtils

public final class GertrudeUtils
extends Object

Some convenience methods for working with the ExperimentState in client code.

Method Summary

Methods

Modifier and Type	Method and Description
static <T> T	getFlagValue(javax.servlet.ServletRequest request, ExperimentFlag<T> flag) Shortcut for getting the value of an ExperimentFlag from a ServletRequest that contains an ExperimentState.
static ExperimentState	getState(javax.servlet.ServletRequest request) Retrieves a HttpServletExperimentState from a ServletRequest.

Methods inherited from class java.lang.Object

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

Method Detail

getState

public static ExperimentState getState(javax.servlet.ServletRequest request)

Retrieves a HttpServletExperimentState from a ServletRequest.

Parameters:

request - the request

Returns:

a HttpServletExperimentState associated with the request, or null if none exists

getFlagValue

public static <T> T getFlagValue(javax.servlet.ServletRequest request,
                 ExperimentFlag<T> flag)

Shortcut for getting the value of an ExperimentFlag from a ServletRequest that contains an ExperimentState.

Parameters:

request - the current request

flag - the value whose value for the current request is returned

Returns:

the value of the flag, using the state associated with the request, or the default value of the flag