com.redhat.lightblue.migrator

Class Controller

java.lang.Object

java.lang.Thread

com.redhat.lightblue.migrator.Controller

All Implemented Interfaces:

Runnable

public class Controller
extends Thread

This is the main thread. It runs until it is interrupted. Periodically it reads migration configurations, and creates MigratorController and ConsistencyChecker threads. All those threads are derived from AbstractController, and have their own thread groups.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Controller.MigrationProcess

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
Controller(MainConfiguration cfg)

Method Summary

Modifier and Type	Method and Description
void	createControllers(MigrationConfiguration[] configurations) Creates controller threads for migrators and consistency checkers based on the configuration loaded from the db.
com.redhat.lightblue.client.LightblueClient	getLightblueClient()
MainConfiguration	getMainConfiguration()
MigrationConfiguration	getMigrationConfiguration(String configurationName) Read a configuration from the database whose name matches the the given configuration name
MigrationConfiguration[]	getMigrationConfigurations() Read configurations from the database whose name matches this instance name
Map<String,Controller.MigrationProcess>	getMigrationProcesses()
ThreadMonitor	getThreadMonitor()
MigrationConfiguration	loadMigrationConfiguration(String migrationConfigurationId) Load migration configuration based on its id
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

Controller

public Controller(MainConfiguration cfg)

Method Detail

getMigrationProcesses

public Map<String,Controller.MigrationProcess> getMigrationProcesses()

getMainConfiguration

public MainConfiguration getMainConfiguration()

getThreadMonitor

public ThreadMonitor getThreadMonitor()

getMigrationConfigurations

public MigrationConfiguration[] getMigrationConfigurations()
                                                    throws IOException,
                                                           com.redhat.lightblue.client.LightblueException

Read configurations from the database whose name matches this instance name

Throws:

IOException

com.redhat.lightblue.client.LightblueException

getMigrationConfiguration

public MigrationConfiguration getMigrationConfiguration(String configurationName)
                                                 throws IOException,
                                                        com.redhat.lightblue.client.LightblueException

Read a configuration from the database whose name matches the the given configuration name

Throws:

IOException

com.redhat.lightblue.client.LightblueException

loadMigrationConfiguration

public MigrationConfiguration loadMigrationConfiguration(String migrationConfigurationId)
                                                  throws IOException,
                                                         com.redhat.lightblue.client.LightblueException

Load migration configuration based on its id

Throws:

IOException

com.redhat.lightblue.client.LightblueException

getLightblueClient

public com.redhat.lightblue.client.LightblueClient getLightblueClient()

createControllers

public void createControllers(MigrationConfiguration[] configurations)
                       throws Exception

Creates controller threads for migrators and consistency checkers based on the configuration loaded from the db. For each configuration item, a migrator controller thread is created and started. Once created, each thread manages its own lifecycle. If the corresponding configuration is removed, thread terminates, or it is modified, thread behaves accordingly.

Throws:

Exception

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread