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/**
* Copyright (C) 2011-2015 The XDocReport Team
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fr.opensagres.xdocreport.document.registry;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;
import fr.opensagres.xdocreport.core.registry.AbstractRegistry;
import fr.opensagres.xdocreport.document.DocumentContextHelper;
import fr.opensagres.xdocreport.document.discovery.ITextStylingDocumentHandlerFactoryDiscovery;
import fr.opensagres.xdocreport.document.preprocessor.sax.BufferedElement;
import fr.opensagres.xdocreport.document.textstyling.BasicTransformResult;
import fr.opensagres.xdocreport.document.textstyling.IDocumentHandler;
import fr.opensagres.xdocreport.document.textstyling.ITextStylingTransformer;
import fr.opensagres.xdocreport.document.textstyling.ITransformResult;
import fr.opensagres.xdocreport.template.IContext;
import fr.opensagres.xdocreport.template.ITemplateEngine;
import fr.opensagres.xdocreport.template.TemplateContextHelper;
/**
* Text styling registry to register {@link IDocumentHandler} and transform some content from syntax (HTML, MediaWiki,
* etc) to another syntax (docx, odt, etc) by using text styling transformer registered in the
* {@link TextStylingTransformerRegistry}.
*/
public class TextStylingRegistry
extends AbstractRegistry
{
private static final TextStylingRegistry INSTANCE = new TextStylingRegistry();
private final Map documentHandlers =
new HashMap();
public TextStylingRegistry()
{
super( ITextStylingDocumentHandlerFactoryDiscovery.class );
}
public static TextStylingRegistry getRegistry()
{
return INSTANCE;
}
@Override
protected boolean registerInstance( ITextStylingDocumentHandlerFactoryDiscovery discovery )
{
documentHandlers.put( discovery.getId(), discovery );
return true;
}
@Override
protected void doDispose()
{
documentHandlers.clear();
}
/**
* Transform the given content written with the given syntaxKind (HTML, MediaWiki, etc) to another syntax defined by
* the document kind (docx, odt).
*
* @param content the content to transform.
* @param syntaxKind the syntax of the content.
* @param syntaxWithDirective true if there is directive in the content and false otherwise.
* @param documentKind the syntax to obtain after the transformation.
* @return
*/
public ITransformResult transform( final String initialContent, String syntaxKind, boolean syntaxWithDirective,
String documentKind, String elementId, IContext context, String entryName )
{
// 1) Retrieve transformer from the text styling transformer registry.
ITextStylingTransformer transformer =
TextStylingTransformerRegistry.getRegistry().getTextStylingTransformer( syntaxKind );
if ( transformer != null )
{
try
{
String content = initialContent;
if ( syntaxWithDirective )
{
// the content contains some directive (${name} which must be replaced)
// Apply template engine to this content.
ITemplateEngine templateEngine = TemplateContextHelper.getTemplateEngine( context );
if ( templateEngine != null )
{
StringWriter newContent = new StringWriter();
templateEngine.process( entryName, context, new StringReader( initialContent ), newContent );
content = newContent.toString();
}
}
// Transformer found, create an instance of document handler
// (docx, odt, etc).
IDocumentHandler visitor = createDocumentHandler( documentKind, elementId, context, entryName );
// 3) Process the transformation.
return transformer.transform( content, visitor );
}
catch ( Throwable e )
{
// Error while transformation, returns the original content???
e.printStackTrace();
return new BasicTransformResult( initialContent );
}
}
return new BasicTransformResult( initialContent );
}
/**
* Create an instance of document handler for the given document kind.
*
* @param documentKind
* @return
*/
public IDocumentHandler createDocumentHandler( String documentKind, String elementId, IContext context,
String entryName )
{
super.initializeIfNeeded();
ITextStylingDocumentHandlerFactoryDiscovery factory = documentHandlers.get( documentKind );
if ( factory == null )
{
return null;
}
// Get the parent buffered element
BufferedElement parent = DocumentContextHelper.getElementById( context, elementId );
return factory.createDocumentHandler( parent, context, entryName );
}
}
