Package org.apache.ignite.internal.managers.deployment

Class GridDeploymentPerVersionStore

java.lang.Object

org.apache.ignite.internal.managers.deployment.GridDeploymentPerVersionStore

All Implemented Interfaces:

GridDeploymentStore

public class GridDeploymentPerVersionStore
extends Object

Deployment storage for DeploymentMode.SHARED and DeploymentMode.CONTINUOUS modes.

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.ignite.internal.managers.deployment.GridDeploymentCommunication	comm	Deployment communication.
protected GridKernalContext	ctx	Kernal context.
protected IgniteLogger	log	Logger.
protected DeploymentSpi	spi	Deployment SPI.

Method Summary

Modifier and Type	Method	Description
void	addParticipants(Map<UUID,IgniteUuid> allParticipants, Map<UUID,IgniteUuid> addedParticipants)	Adds participants to all deployments.
protected void	clearSerializationCaches()	Clears serialization caches to avoid PermGen memory leaks.
@Nullable GridDeployment	explicitDeploy(Class<?> cls, ClassLoader clsLdr)	Explicitly deploys class.
void	explicitUndeploy(UUID nodeId, String rsrcName)
@Nullable GridDeployment	getDeployment(GridDeploymentMetadata meta)
GridDeployment	getDeployment(IgniteUuid ldrId)	Gets class loader based on ID.
Collection<GridDeployment>	getDeployments()
protected boolean	isTask(Class<?> cls)
void	onKernalStart()	Kernal started callback.
void	onKernalStop()	Kernel stopping callback.
GridDeployment	searchDeploymentCache(GridDeploymentMetadata meta)
void	start()	Starts store.
protected String	startInfo()
void	stop()	Stops store.
protected String	stopInfo()
String	toString()
protected String	userVersion(ClassLoader ldr)

Methods inherited from class java.lang.Object

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

Field Detail

log

protected final IgniteLogger log

Logger.

spi

protected final DeploymentSpi spi

Deployment SPI.

ctx

protected final GridKernalContext ctx

Kernal context.

comm

protected final org.apache.ignite.internal.managers.deployment.GridDeploymentCommunication comm

Deployment communication.

Method Detail

start

public void start()
           throws IgniteCheckedException

Starts store.

Throws:

IgniteCheckedException - If start failed.

stop

public void stop()

Stops store.

onKernalStart

public void onKernalStart()
                   throws IgniteCheckedException

Kernal started callback.

Specified by:

onKernalStart in interface GridDeploymentStore

Throws:

IgniteCheckedException - If callback execution failed.

onKernalStop

public void onKernalStop()

Kernel stopping callback.

Specified by:

onKernalStop in interface GridDeploymentStore

getDeployments

public Collection<GridDeployment> getDeployments()

Returns:

All current deployments.

getDeployment

public GridDeployment getDeployment(IgniteUuid ldrId)

Gets class loader based on ID.

Parameters:

ldrId - Class loader ID.

Returns:

Class loader of null if not found.

searchDeploymentCache

public GridDeployment searchDeploymentCache(GridDeploymentMetadata meta)

Parameters:

meta - Deployment meatdata.

Returns:

Grid deployment instance if it was finded in cache, null otherwise.

getDeployment

@Nullable
public @Nullable GridDeployment getDeployment(GridDeploymentMetadata meta)

Parameters:

meta - Deployment metadata.

Returns:

Deployment.

addParticipants

public void addParticipants(Map<UUID,IgniteUuid> allParticipants,
                            Map<UUID,IgniteUuid> addedParticipants)

Adds participants to all deployments.

Parameters:

allParticipants - All participants to determine which deployments to add to.

addedParticipants - Participants to add.

explicitUndeploy

public void explicitUndeploy(UUID nodeId,
                             String rsrcName)

Parameters:

nodeId - Optional ID of node that initiated request.

rsrcName - Undeploys all deployments that have given

toString

public String toString()

startInfo

protected final String startInfo()

Returns:

Startup log message.

stopInfo

protected final String stopInfo()

Returns:

Stop log message.

explicitDeploy

@Nullable
public @Nullable GridDeployment explicitDeploy(Class<?> cls,
                                               ClassLoader clsLdr)
                                        throws IgniteCheckedException

Explicitly deploys class.

Specified by:

explicitDeploy in interface GridDeploymentStore

Parameters:

cls - Class to explicitly deploy.

clsLdr - Class loader.

Returns:

Grid deployment.

Throws:

IgniteCheckedException - Id deployment failed.

userVersion

protected final String userVersion(ClassLoader ldr)

Parameters:

ldr - Class loader.

Returns:

User version.

isTask

protected final boolean isTask(Class<?> cls)

Parameters:

cls - Class to check.

Returns:

True if class is task class.

clearSerializationCaches

protected final void clearSerializationCaches()

Clears serialization caches to avoid PermGen memory leaks. This method should be called on each undeployment.

For more information: http://www.szegedi.org/articles/memleak3.html.