Package org.opencastproject.workflow.handler.videoeditor

Class SilenceDetectionWorkflowOperationHandler

java.lang.Object

org.opencastproject.workflow.api.AbstractWorkflowOperationHandler

org.opencastproject.workflow.handler.videoeditor.SilenceDetectionWorkflowOperationHandler

All Implemented Interfaces:

WorkflowOperationHandler

public class SilenceDetectionWorkflowOperationHandler
extends AbstractWorkflowOperationHandler

workflowoperationhandler for silencedetection executes the silencedetection and adds a SMIL document to the mediapackage containing the cutting points

Nested Class Summary

Nested classes/interfaces inherited from class org.opencastproject.workflow.api.AbstractWorkflowOperationHandler

AbstractWorkflowOperationHandler.Configuration

Field Summary

Fields inherited from class org.opencastproject.workflow.api.AbstractWorkflowOperationHandler

asList, description, id, serviceRegistry, SOURCE_FLAVOR, SOURCE_FLAVORS, SOURCE_TAG, SOURCE_TAGS, TARGET_FLAVOR, TARGET_FLAVORS, TARGET_TAG, TARGET_TAGS

Constructor Summary

Constructors

Constructor	Description
SilenceDetectionWorkflowOperationHandler()

Method Summary

Modifier and Type	Method	Description
void	activate(org.osgi.service.component.ComponentContext cc)	Activates this component with its properties once all of the collaborating services have been set
protected long	getSegmentDurationMS(SmilMediaObject smilElement)	Return first media segment length in milliseconds.
void	setDetectionService(SilenceDetectionService detectionService)
void	setServiceRegistry(ServiceRegistry serviceRegistry)	Sets the service registry.
void	setSmilService(SmilService smilService)
void	setWorkspace(Workspace workspace)
WorkflowOperationResult	start(WorkflowInstance workflowInstance, JobContext context)	Runs the workflow operation on this WorkflowInstance.

Methods inherited from class org.opencastproject.workflow.api.AbstractWorkflowOperationHandler

asList, cfgKeyMissing, createResult, createResult, createResult, createResult, destroy, equals, getCfg, getConfig, getConfig, getConfig, getDescription, getFileNameFromElements, getId, getOptConfig, getOptConfig, getTagsAndFlavors, hashCode, setJobBarrierPollingInterval, skip, toString, waitForStatus, waitForStatus

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

SilenceDetectionWorkflowOperationHandler

public SilenceDetectionWorkflowOperationHandler()

Method Details

start

public WorkflowOperationResult start(WorkflowInstance workflowInstance,
 JobContext context)
                              throws WorkflowOperationException

Description copied from class: AbstractWorkflowOperationHandler

Runs the workflow operation on this WorkflowInstance. If the execution fails for some reason, this must throw a WorkflowOperationException in order to handle the problem gracefully. Runtime exceptions will cause the entire workflow instance to fail.

Specified by:

start in interface WorkflowOperationHandler

Specified by:

start in class AbstractWorkflowOperationHandler

Parameters:

workflowInstance - the workflow instance

context - the job context

Returns:

the WorkflowOperationResult containing a potentially modified MediaPackage and whether to put the workflow instance into a wait state.

Throws:

WorkflowOperationException - If the workflow operation fails to execute properly, and the default error handling should be invoked.

See Also:

• WorkflowOperationHandler.start(org.opencastproject.workflow.api.WorkflowInstance, JobContext)

getSegmentDurationMS

protected long getSegmentDurationMS(SmilMediaObject smilElement)
                             throws SmilException

Return first media segment length in milliseconds. If smilElement is a container, look for sub elements and return duration from the first matching element.

Parameters:

smilElement - smil media or container element to query duration

Returns:

media duration in milliseconds

Throws:

SmilException - on smil parsing error

activate

public void activate(org.osgi.service.component.ComponentContext cc)

Description copied from class: AbstractWorkflowOperationHandler

Activates this component with its properties once all of the collaborating services have been set

Overrides:

activate in class AbstractWorkflowOperationHandler

Parameters:

cc - The component's context, containing the properties used for configuration

setDetectionService

public void setDetectionService(SilenceDetectionService detectionService)

setSmilService

public void setSmilService(SmilService smilService)

setWorkspace

public void setWorkspace(Workspace workspace)

setServiceRegistry

public void setServiceRegistry(ServiceRegistry serviceRegistry)

Description copied from class: AbstractWorkflowOperationHandler

Sets the service registry. This method is here as a convenience for developers that need the registry to do job waiting.

Overrides:

setServiceRegistry in class AbstractWorkflowOperationHandler

Parameters:

serviceRegistry - the service registry