edu.ucsb.cs.jicos.services.external.services
Class TaskExternal

java.lang.Object
  edu.ucsb.cs.jicos.services.Task
      edu.ucsb.cs.jicos.services.external.services.TaskExternal

All Implemented Interfaces:

edu.ucsb.cs.jicos.services.external.XmlConverter, java.io.Serializable

Direct Known Subclasses:

TaskMatlab

public class TaskExternal
extends Task
implements edu.ucsb.cs.jicos.services.external.XmlConverter

Author:

Pete Cappello

See Also:

Serialized Form

Field Summary

protected java.lang.Class

serviceClass

Fields inherited from class edu.ucsb.cs.jicos.services.Task

ALL_INPUTS

Fields inherited from interface edu.ucsb.cs.jicos.services.external.XmlConverter

NAMESPACE, STYLESHEET_Html, STYLESHEET_Unknown, STYLESHEET_Xml

Constructor Summary

protected	TaskExternal()
protected	TaskExternal(java.lang.Class serviceClass)

Method Summary

java.lang.Object	createInput(ExternalData externalData)
XmlDocument	createResult(java.lang.Object result)
Shared	createShared(ExternalData externalData)
java.lang.Object	execute(Environment environment) This method implements the computation encapsulated by this task.
boolean	fromXml(ExternalData externalData)
org.w3c.dom.Document	getStyleSheet(int styleSheetType)
java.lang.Class	serviceClass()
java.lang.String	toHtmlString(XmlDocument result, java.lang.String hostPort)
java.lang.String	toXml(java.lang.String prefix)

Methods inherited from class edu.ucsb.cs.jicos.services.Task

compute, execute, executeIncrementally, executeOnServer, getInput, getTaskId, isAtomic, numInputs, numUnsetInputs, toString

Methods inherited from class java.lang.Object

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

Field Detail

serviceClass

protected java.lang.Class serviceClass

Constructor Detail

TaskExternal

protected TaskExternal()

TaskExternal

protected TaskExternal(java.lang.Class serviceClass)

Method Detail

serviceClass

public java.lang.Class serviceClass()

execute

public java.lang.Object execute(Environment environment)

Description copied from class: Task

This method implements the computation encapsulated by this task. The method is the Task class's reason for being.

Specified by:

execute in class Task

Parameters:

environment - The task's environment: The computation's immutable input & its Shared Object, if any.

Returns:

The returned Object is either the execute method's computed value xor a (compose) Task. In the latter case, the compose task takes the output from this task's subtasks, and composes it to create this task's output. This, at least, is the intent of this method's returned value.

toXml

public java.lang.String toXml(java.lang.String prefix)
                       throws java.lang.Exception

Specified by:

toXml in interface edu.ucsb.cs.jicos.services.external.XmlConverter

Throws:

java.lang.Exception

fromXml

public boolean fromXml(ExternalData externalData)
                throws java.lang.Exception

Specified by:

fromXml in interface edu.ucsb.cs.jicos.services.external.XmlConverter

Throws:

java.lang.Exception

createInput

public java.lang.Object createInput(ExternalData externalData)
                             throws java.lang.Exception

Specified by:

createInput in interface edu.ucsb.cs.jicos.services.external.XmlConverter

Throws:

java.lang.Exception

createShared

public Shared createShared(ExternalData externalData)
                    throws java.lang.Exception

Specified by:

createShared in interface edu.ucsb.cs.jicos.services.external.XmlConverter

Throws:

java.lang.Exception

createResult

public XmlDocument createResult(java.lang.Object result)
                         throws java.lang.Exception

Specified by:

createResult in interface edu.ucsb.cs.jicos.services.external.XmlConverter

Throws:

java.lang.Exception

getStyleSheet

public org.w3c.dom.Document getStyleSheet(int styleSheetType)

Specified by:

getStyleSheet in interface edu.ucsb.cs.jicos.services.external.XmlConverter

toHtmlString

public java.lang.String toHtmlString(XmlDocument result,
                                     java.lang.String hostPort)

Specified by:

toHtmlString in interface edu.ucsb.cs.jicos.services.external.XmlConverter