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CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Progress statusProgress status
&
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Stéphane [email protected]
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Support to XFDU Specifications
• Final fixes to « XFDU Red Book »• Contribution to « XFDU Green Book »• Critical analysis of the standard regarding ESA needs
(ENVISAT L1/L2 and analysis of EGOS system)• Improvement of the implementations• Produce sample packages (more than 500)
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Historical Archive Rationalization (HARM)
• Core project being concluded• Additionnal packages for supporting ENVISAT Level 1
and Level 2 products (until end of February):• 49 product types• about 300 additional XML Schemas• 500 examples
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
SAFE - Physical Model Reminder
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Manifest - Internal Constraints
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Manifest - Reference Informations
« SAFE requires Representation Information of each Data Object »
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Manifest – Multiple Rep. Info’s
« Representation Information may be composed of several components »
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Manifest – Binary Metadata
« XFDU Recommends to refer to Binary Metadata Components through a Data Object »
« XFDU requires that all Data Objects should be referenced from the Information Package Map »
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Manifest file
Manifest – Reference between Components
Requires to locate the Manifest- Hight Manifest/Components coupling factor…
- Could a registry help ?-SAFE tackle this with Xquery
1
?
2
Requires to know the Manifest content
Structure/SemanticContext/Profile(…)
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
SAFE Specializations
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Specialization - Definition
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Abstract specializations
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Abstract specializations - Example
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Redefinitions and Imports
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
ESA/XFDU I/O Java/C++ API
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Overview
JNI Interface
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Use cases
• Create of an XFDU package
• Open an XFDU package
• Remove an XFDU package
• Move an XFDU package considering referenced objects
• Validate an XFDU package including the object contents
• Verify fixty i.e. Components checksums
• Add/Remove/Browse Content Units of the Information Package Map
• Add/Remove/Retrieve Metadata Objects
• Add/Remove/Retrieve Data Objects
• Apply Transformation Objects
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Java Packages
• esa.xfdu General XFDU packages management.
• esa.xfdu.map XFDU Information Package Map Section
• esa.xfdu.object Classes handling all XFDU object types.
• esa.xfdu.object.metadata XFDU meatadata object types.
• esa.xfdu.object.data Classes handling XFDU data object types.
• esa.xfdu.object.behavior Classes handling XFDU behavior object types.
• esa.xfdu.object.behavior.impl Behavior Implementations
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Main Java Interfaces
• esa.xfdu.object.Object• esa.xfdu.object.metadata.MetadataObject
• esa.xfdu.object.data.DataObject
• esa.xfdu.object.behavior.BehaviorObject
• esa.xfdu.object.behavior.Mechanism• esa.xfdu.object.behavior.Transformer
« The second version of XFDU may gather the means for referencing Metadata/Data/Behavior objects in a common object list. »
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
C++ Wrapper
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Current Version
xfdu-1-0-rc-10(April 28, 2006)
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Code Statistics
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Further information
http://www.gael.fr/xfdu
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Connected Application
• CNES has developped a GUI on top the XFDU I/O Java API: the « XFDU View »
• C.f. http://www.gael.fr/xfdu-view
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
ESA/SAFE I/O Java/C++ API
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Overview
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Use cases
• Create of a SAFE product
• Open a SAFE product
• Remove a SAFE product
• Move a SAFE product considering referenced objects
• Validate a SAFE product including the object contents
• Verify fixty i.e. Components checksums
• Add/Remove/Browse Content Units of the Information Package Map
• Add/Remove/Retrieve SAFE Specialized Metadata Objects
• Add/Remove/Retrieve SAFE Data Objects
• Browse XML and Binary Data Object Contents
• Accelerate Content access using SAFE Indexes
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Java Classes
esa.safe.object.metadata.AcquisitionPeriod
esa.safe.object.metadata.CloudVoteNotationSystem
esa.safe.object.metadata.Container
esa.safe.object.metadata.CorruptedCause
esa.safe.object.metadata.CorruptedElements
esa.safe.object.metadata.Facility
esa.safe.object.metadata.Frame
esa.safe.object.metadata.FrameSet
esa.safe.object.metadata.FrameTile
esa.safe.object.metadata.GridReference
esa.safe.object.metadata.Instrument
esa.safe.object.metadata.Line
esa.safe.object.metadata.Location
esa.safe.object.metadata.MissingElementsesa.safe.object.metadata.OrbitNumberesa.safe.object.metadata.OrbitReferenceesa.safe.object.metadata.Platform esa.safe.object.metadata.Point esa.safe.object.metadata.Processing esa.safe.object.metadata.QualityInformation esa.safe.object.metadata.Resource esa.safe.object.metadata.Softwareesa.safe.object.metadata.Time
esa.safe.Safeesa.safe.SchemaValidator
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
C++ Wrapper
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Current Version
safe-1-0-rc-13(June 10, 2006)
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Code Statistics
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Further information
ESA Official Web:
http://earth.esa.int/SAFE
GAEL’s Project Web:
http://www.gael.fr/safe
CCSDS MOIMS Falls Meeting 2007 – Colorado Springs - June 2006
SAFE Status
Conclusions
• SAFE Specifications verified that XFDU is suitable for some amount of EO data sets (59)
• An alternate XFDU implementation is available (C++/Java) and interoperates with NASA API
• Up to 59 EO sample packages have been generated• SAFE Volume 2 is ready to be conveyed to the XFDU
Green Book• An XFDU v2 may improve the v1, at least, by:
• Simplifying the association mechanism between Objects• Generalizing Metadata/Data/Behavior Object references
• Future of XFDU and SAFE within ESA: c.f. ESA Agency Report
