org.apache.oodt.cas.workflow.examples

Class FilterTask

java.lang.Object

org.apache.oodt.cas.workflow.examples.FilterTask

All Implemented Interfaces:

WorkflowTaskInstance

public class FilterTask
extends Object
implements WorkflowTaskInstance

Filters dynamic Metadata from the provided metadata in the run(Metadata, WorkflowTaskConfiguration) method. The config parameter in run(Metadata, WorkflowTaskConfiguration) defines metadata parameters to remove and rename via the following directives:

• Remove_Key - a comma separated list of keys to remove
• Rename_[Key] - set the value of this property to the new name of the [Key] parameter. E.g., having a key in the task configuration named Rename_Filename with value set to Prior_Filename will rename the key in the dynamic metadata named Filename to the new name of Prior_Filename, preserving its prior value.

Note that the Rename keys will be evaluated first, before the Remove_Key configuration parameter is evaluated.

Constructor Summary

Constructors

Constructor and Description
FilterTask()

Method Summary

Methods

Modifier and Type	Method and Description
void	run(Metadata metadata, WorkflowTaskConfiguration config) Runs the Task with the specified metadata context.

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterTask

public FilterTask()

Method Detail

run

public void run(Metadata metadata,
       WorkflowTaskConfiguration config)
         throws WorkflowTaskInstanceException

Description copied from interface: WorkflowTaskInstance

Runs the Task with the specified metadata context.

Specified by:

run in interface WorkflowTaskInstance

Parameters:

metadata - The TaskContext of metadata that is shared between the tasks.

config - The static configuration metadata for this task.

Throws:

WorkflowTaskInstanceException