org.apache.ambari.server.stack

Class StackContext

java.lang.Object

org.apache.ambari.server.stack.StackContext

public class StackContext
extends Object

Provides external functionality to the Stack framework.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StackContext.LatestRepoQueryExecutor Executor used to execute repository update tasks.

Constructor Summary

Constructors

Constructor and Description
StackContext(MetainfoDAO metaInfoDAO, ActionMetadata actionMetaData, OsFamily osFamily) Constructor.

Method Summary

Modifier and Type	Method and Description
void	executeRepoTasks() Execute the registered repo update tasks.
boolean	haveAllRepoTasksCompleted() Determine if all registered repo update tasks have completed.
void	registerRepoUpdateTask(URI uri, StackModule stack) Register a task to obtain the latest repo url from an external location.
void	registerServiceCheck(String serviceName) Register a service check.

Methods inherited from class java.lang.Object

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

Constructor Detail

StackContext

public StackContext(MetainfoDAO metaInfoDAO,
                    ActionMetadata actionMetaData,
                    OsFamily osFamily)

Constructor.

Parameters:

metaInfoDAO - metainfo data access object

actionMetaData - action meta data

osFamily - OS family information

Method Detail

registerServiceCheck

public void registerServiceCheck(String serviceName)

Register a service check.

Parameters:

serviceName - name of the service

registerRepoUpdateTask

public void registerRepoUpdateTask(URI uri,
                                   StackModule stack)

Register a task to obtain the latest repo url from an external location.

Parameters:

url - external repo information URL

stack - stack module

executeRepoTasks

public void executeRepoTasks()

Execute the registered repo update tasks.

haveAllRepoTasksCompleted

public boolean haveAllRepoTasksCompleted()

Determine if all registered repo update tasks have completed.

Returns:

true if all tasks have completed; false otherwise