ODF Template Engine
An easy document generation tool built with ODFDOM
Ying Chun GuoTechnical LeadODF ToolkitSoftware StandardsIBM
Software Group
15:00-15:45Nov 5th, 2009
@ 2009 IBM Corporation
Agenda
Overview
Implemented with ODFDOM
A CDA use case
Extension and configuration
Summary
This prensentation is for reference only, IBM does not provide
any kind of warranty/guaranty to it.
Documents generation from template is a common requirement in
many documents processing solutions.
ODF Template Engine is a tool to generate ODF documents based on
template.
A template is a fully-formatted text document with substitution
blocks indicated with special delimiters.
The substitution blocks will be replaced with data from data
sources.
Mappings between the substitution blocks and data are defined in
XML format.
Overview
Overview
ODF Template Engine is built with ODFDOM.
ODF Template Engine is easily configurable and extendable.
ODF Template Engine doesn't depend on any ODF editors.
ODF Template Engine focuses on server side processing.
Implemented with ODFDOM
Leverage ODFDOM navigation APIs to search the substitution
blocks and replace them with data.
String pattern = delimiterLeftCharacter + "([a-zA-Z0-9_#\\-]+)"
+ delimiterRightCharacter;TextNavigation search = new
TextNavigation(pattern, doc);while (search.hasNext())
{TextSelection item = (TextSelection)
search.getCurrentItem();String text = item.getText();String data =
dataRender.render(text);item.replaceWith(data);}
Implemented with ODFDOM
Leverage ODFDOM table convenient APIs to create rows and cells
to display repeated data.
OdfTableRow tr = (OdfTableRow) table.appendChild(new
OdfTableRow(contentDom));OdfTableCell td = (OdfTableCell)
tr.appendCell(new
OdfTableCell(contentDom));td.newTextPElement().setNodeValue(values[i]);
A CDA use case
Clinical documents, such as a discharge summary or progress
note, are stored as CDA format in heathcare solutions.
If a patient wants to keep electronic versions of his/her
clinical documents, there is a need to convert CDA XML documents to
ODF format.
In this case, a discharge summary in ODF format can be generated
from CDA XML document
Note: CDA is an XML-based markup standard that specifies the
structure and semantics of a clinical document for the purpose of
exchange.
A CDA use case
A CDA use case live demo : step 1
Define template and mapping file
Lotus Symphony plugin can help to do it.
A CDA use case live demo : step 2
Invoke the template engine by APIs:
//Create OdfTemplate instance and DataRender
instance.OdfTemplate odftemp =
OdfTemplate.loadTemplate(fileName,propFile);DataRender ddf =
DataRender.parseDDF(new FileInputStream(ddfile));
//Create OdfTemplateTranslate instance and register a modifier
handlerOdfTemplateTranslate engine = new
OdfTemplateTranslate();HashmarkModifierHandler handler = new
HashmarkModifierHandler();engine.registerHandler(handler);
//Run template engine to generate
documentengine.generateODF(odftemp, ddf, parentPath);
Extension and configuration
User can introduce his own modifier handler by implement
interface ModifierHandler and register the modifier handler in
template engine.
Extension and configuration
User can support his own data source and data structure by
extending class DataSource and implementing interface
DataStructure
Summary
ODF Template Engine is an easy document generation tool
which
doesn't depend on any ODF editors;
focus on server side processing;
is easily extendable and configurable.
ODFDOM can be leveraged to process ODF document.
You can get more information of ODF Toolkit from ODF Toolkit
Union
Thank you!
[email protected]
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