Task Notes for Paul Taele

Week 5: Thursday

Data Structure forDebugging Sketches

Record Class

Record:Data structure for debugging sketches.

Sketch:Holds the before-sketch.

MethodCall:Holds the name of the method call.

Extracting “Bad” Stroke undo() Case

Step #1:Deserialize sketch XML file.

SketchXML file

Extracting “Bad” Stroke undo() Case

Step #2:Extract recursive strokes from the sketch object. Sketch

XML file

SketchObject

Extracting “Bad” Stroke undo() Case

Step #3:Recursively get all strokes in sketch.

RecursiveStrokes

SketchXML file

SketchObject

Extracting “Bad” Stroke undo() Case

Step #4:Extract the stroke with newest time stamp.

Last Stroke

RecursiveStrokes

SketchXML file

SketchObject

Proposed Undo/ClearMethod Edits

Enter

Exit

Magic

Undo/Clear: Current Implementation

Current Implementation: Does “magic” to undo and clear a sketch.

Enter

Exit

Magic

Proposed Changes

CacheSketch

Addition #1:Cache the sketch before undo/clear.

Enter

Exit

Magic

Proposed Changes

CacheSketch

Add toRecord

Addition #2:Store the sketch and label of method call into a record.

Enter

Exit

Magic

Proposed Changes

CacheSketch

Add toRecord

Locally Save

Record

Addition #3:Locally save record to disk.

Saving Debugging Sketch

Start

StartMecha

nix

Start

StartMecha

nix

Timestamp1

Start -> Undo

StartMecha

nixUndo

Timestamp1

Start -> Undo

StartMecha

nixUndo

Timestamp1

Timestamp2-

Undo.xml

Start -> Undo -> Clear

StartMecha

nixUndo

Timestamp1

Timestamp2-

Undo.xml

Clear

Start -> Undo -> Clear

StartMecha

nixUndo

Timestamp1

Timestamp2-

Undo.xml

Clear

Timestamp3-

Clear.xml

Start -> Undo -> Clear -> Undo

StartMecha

nixUndo

Timestamp1

Timestamp2-

Undo.xml

Clear

Timestamp3-

Clear.xml

Clear

Start -> Undo -> Clear -> Undo

StartMecha

nixUndo

Timestamp1

Timestamp2-

Undo.xml

Clear

Timestamp3-

Clear.xml

Timestamp4-

Undo.xml

Undo