ox ygen xml editor support for exist db xquery debugging. stefan vasile stefan@oxygenxml
Post on 31-Dec-2015
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oXygen XML Editor
Support for eXist DB XQuery debugging.
Stefan Vasilestefan@oxygenxml.com
Oxygen XML support for eXist DB
Database management (using Data Source Explorer View) Allows multiple eXist connections.
Collection management (add,delete, rename, move, dnd, properties)
Resource management (add, delete, rename, move, dnd, edit, properties)
WebDAV support (http://ipAddress:8080/exist/webdav/db/)
XQuery Editing support (outline view, content completion including eXist
extensions)
Validation support (done using eXist XQuery engine)
Execution support (transformation scenarios)
Debugging support (work in progress)
What can be debugged?
Only local debugging is accepted (remote debugging will be available soon).
You can debug a XQuery file:
That is stored into a database collection: http://127.0.0.1:8080/exist/rest/db/xquery/json-test.xql
The user can select the Xquery file using Oxygen DataSource Explorer (a tree view of database content) .
That is stored in webapp/xquery folder: http://127.0.0.1:8080/xquery/fibo.xql
There is no easy way to select the XQuery file from webapp directory (the user should know exactly the file location)
Debug XQuery in HTTP context
The common way to deploy an eXist database is in a servlet context.
The XQueryServlet or REST servlets reads XQuery scripts from the file system or database and execute them with the current HTTP context.
There could be complex interactions with an eXist application that could involve multipe XQuery scripts and various parameter passing (including the context parameters).
Users whould like to have the possibility to debug an XQuery with the current HTTP context.
The user should be able to put an XQuery script in debug mode and be able to interact with it when the script is called.
XQuery debugging perspective
Breakpoints view
Breakpoint types: Line, Conditional , Call, Return, Exception, Watch
Variables view
Saxon Variables View
Saxon
eXist DB
XWatch view
Saxon XWatch
view
eXist XWatch
view
Saxon
eXist DB
XWatch
Sequence value representation with Saxon XQuery processor.
XWatch view
Sequence value representation in eXist DB
Stack View
Saxon Stack View
Exist Stack View
Saxon
eXist DB
Output view
XQuery Profiling Views
Saxon XQuery profiling
Demo
Further directions
Finalize the features set (that could probably trigger some eXist debugging API changes).
We need a stable eXist debugging API. There is still work to be done for integration. We need to wait for eXist main release (1.5,1.6?) that
will include eXist debugging API. We need to wait for the following oXygen release after
eXist main release (probably version 13).
Q&A
Send questions to:
Oxygen XML support - support@oxygenxml.com
Stefan Vasile - stefan@oxygenxml.com
Thank You
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