org.apache.oozie.action.hadoop

Class HCatCredentials

java.lang.Object

org.apache.oozie.action.hadoop.HCatCredentials

All Implemented Interfaces:

CredentialsProvider

public class HCatCredentials
extends Object
implements CredentialsProvider

Credentials implementation to store in jobConf, HCat-specific properties such as Principal and Uri User specifies these credential properties along with the action configuration The jobConf is used further to pass credentials to the tasks while running Oozie server should be configured to use this Credentials class by including it via property 'oozie.credentials.credentialclasses' User can extend the parent class to implement own class as well for handling custom token-based credentials and add to the above server property

Constructor Summary

Constructors

Constructor and Description
HCatCredentials()

Method Summary

Modifier and Type	Method and Description
void	updateCredentials(org.apache.hadoop.security.Credentials credentials, org.apache.hadoop.conf.Configuration config, CredentialsProperties props, ActionExecutor.Context context) This is the interface for all the Credentials implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

HCatCredentials

public HCatCredentials()

Method Detail

updateCredentials

public void updateCredentials(org.apache.hadoop.security.Credentials credentials,
                              org.apache.hadoop.conf.Configuration config,
                              CredentialsProperties props,
                              ActionExecutor.Context context)
                       throws Exception

Description copied from interface: CredentialsProvider

This is the interface for all the Credentials implementation. Any new credential implementation must implement this function. This function should modify the configuration which will be used further to pass the credentials to the tasks while running it. Credentials properties and context is also provided by that user can get all the necessary configuration.

Specified by:

updateCredentials in interface CredentialsProvider

Parameters:

credentials - the credentials object which is updated

config - launcher AM configuration

props - properties for getting credential token or certificate

context - workflow context

Throws:

Exception - thrown if failed