| 1 |
------------------------------------------------------------------------------------------------------- |
| 2 |
VO-DML MAPPING GEGINNER'S EXAMPLE |
| 3 |
|
| 4 |
Based on a prototype af an Healpix extension for spatial coordinates. |
| 5 |
This is not a model proposal but a testbench for the VODML workflow. |
| 6 |
|
| 7 |
Laurent Michel 04/2017 |
| 8 |
-------------------------------------------------------------------------------------------------------- |
| 9 |
|
| 10 |
USE CASE |
| 11 |
-------- |
| 12 |
The goal of this project is to annotate a simple VOTable with a very basic source model by using the tools available in April 2017. |
| 13 |
It can be used as a toy example for VO-DML mapping beginners. |
| 14 |
|
| 15 |
This model, namely lmsource, has one class with the following attributes: |
| 16 |
- name |
| 17 |
- RA/DEC |
| 18 |
- Positional Error |
| 19 |
- Healpix index |
| 20 |
- Parallax |
| 21 |
|
| 22 |
lmsource imports the STC2 space coordinate pattern extended to support Healpix. |
| 23 |
|
| 24 |
USED MODELS |
| 25 |
----------- |
| 26 |
- lmsource : source data model |
| 27 |
- coordsys_tessel: extension of the STC2 coordsys Spatial Domain Package with a new axis class for the tesselation |
| 28 |
- coords_tessel : extension of the STC2 coords Spatial Domain Package adding a Tile to the position |
| 29 |
|
| 30 |
Each model comes with a complete documentation: |
| 31 |
- model.xmi : XMI file file generated by Modelio. XMI files have been patched by to support |
| 32 |
XSLT sheets (UML name space set as http://schema.omg.org/spec/UML/20100901) |
| 33 |
- model.vodml.xml : VODML serialization of the model, generated by an XSL transformation |
| 34 |
- model.html/gvd/map/png: Hypertext documentation of the model, generated by an XSL transformation |
| 35 |
- model_diagram.png : Class diagram focused on the package of interest, generated by Modelio |
| 36 |
|
| 37 |
MODEL DESIGN |
| 38 |
------------- |
| 39 |
All models have been designed with Modelio 3.5 on Ubuntu 14.4. |
| 40 |
Both *_tessel have been built from |
| 41 |
https://volute.g-vo.org/svn/trunk/projects/dm/STC-2.0/model/coords/STC_coords_V2.0.zip |
| 42 |
And https://volute.g-vo.org/svn/trunk/projects/dm/STC-2.0/model/coordsys/STC_coordsys_V2.0.zip |
| 43 |
|
| 44 |
These models have been renamed and then extended with the new classes. |
| 45 |
|
| 46 |
lmsource model has been created from scratch by following the instructions of VO-DMLModelingBeginnersGuide.pdf. |
| 47 |
The importation of both *_tessel models have been done by following the instructions of VODMLImportonModelio.pdf. |
| 48 |
XMIs files have been generated by Modelio with the UML2.4 template |
| 49 |
|
| 50 |
All XSL transformations have been run by the scripts located in ./scripts. |
| 51 |
These scripts use the XSLT files written by Gerard Lemson and Omar Laurino. |
| 52 |
They can be applied to different models without editing any property file. |
| 53 |
Scripts are setup for my own installation, they must be updated to be used in another context. |
| 54 |
XSLT sheets are not dupliacted in this project. |
| 55 |
|
| 56 |
VOTABLE ANNOTATION |
| 57 |
------------------ |
| 58 |
The lmsource.votable.xml contains the raw VOTable: no mention of VO-DML |
| 59 |
The lmsource.votable.annot.xml contains the VOTable annotated with the lmsource model. |
| 60 |
|
| 61 |
The annotation process has been done with the Omar's Jovial tool plus a few handcraft actions. |
| 62 |
The lmsource.groovy file contains DSL instructions used by Jovial to generate the annotations. |
| 63 |
The lmsource.groovy.output.xml file contains the Jovial output. |
| 64 |
By default, Jovial uses stdout as output stream, this output has been Copied/Pasted in that file. |
| 65 |
|
| 66 |
The <VODML> element of lmsource.groovy.output.xml has been Copied/Pasted below the <VOTABLE> element in lmsource.votable.annot.xml. |
| 67 |
The LITERALs defining the Healpix schema have been replaced by hand by <CONSTANT> elements which refer to existing <PARAM>s |
| 68 |
This patch is due to the fact the Jovial does not implement the reference to PARAMs yet. |
| 69 |
|
| 70 |
WARNING: the current version of the Groovy file is not uptodate. Most of the mapping TEMPLATEs have been writtent by hand |
| 71 |
|
| 72 |
RUNNING JOVIAL |
| 73 |
-------------- |
| 74 |
Jovial is hosted by Github: https://github.com/olaurino/jovial |
| 75 |
|
| 76 |
To run it in our context do as follow: |
| 77 |
1) git clone https://github.com/olaurino/jovial.git |
| 78 |
2) cd jovial |
| 79 |
3) mvn package # if the test step fails, adds the -DskipTests flag |
| 80 |
4) java -jar target/jovial-1.0-SNAPSHOT-jar-with-dependencies.jar -i /yourpath/lmsource.groovy |
| 81 |
|
| 82 |
VOTable validation |
| 83 |
------------------ |
| 84 |
The annotated VOTable must be valid againts the VOTable 1.4 schema referenced in the head. |
| 85 |
The validation can be checked with any XSD processor. |
| 86 |
Eclipse XML Espresso has ben used for here |
| 87 |
|
| 88 |
VOTable parsing |
| 89 |
--------------- |
| 90 |
The annotatated VOTable can be parse with the MAST parser developped by Tom Donaldson: |
| 91 |
- Connect https://masttest.stsci.edu/vodml/Mashup/Clients/Mast/Portal.html |
| 92 |
- Upload your VOTable and type <CR> |
| 93 |
- A full documentation is availabe at https://volute.g-vo.org/svn/trunk/projects/dm/vo-dml/mapping/MAST%20VODML%20Parser/VODML%20Parser.html |
| 94 |
Enjoy |
| 95 |
LM |
Parent Directory
| 
Revision Log