/******************************************************************************
* Copyright (c) 2016 Oracle
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Konstantin Komissarchik - initial implementation and ongoing maintenance
******************************************************************************/
package org.eclipse.sapphire.ui.internal;
import static java.nio.charset.StandardCharsets.UTF_8;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.StringWriter;
import java.net.URL;
import java.util.Map;
import java.util.SortedSet;
import java.util.TreeMap;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.sapphire.ElementProperty;
import org.eclipse.sapphire.ElementType;
import org.eclipse.sapphire.ListProperty;
import org.eclipse.sapphire.LoggingService;
import org.eclipse.sapphire.PossibleTypesService;
import org.eclipse.sapphire.PropertyDef;
import org.eclipse.sapphire.Sapphire;
import org.eclipse.sapphire.ValueProperty;
import org.eclipse.sapphire.modeling.annotations.Documentation;
import org.eclipse.sapphire.modeling.annotations.Required;
import org.eclipse.sapphire.modeling.docsys.DocumentationContent;
import org.eclipse.sapphire.modeling.docsys.HtmlFormatter;
import org.eclipse.sapphire.modeling.xml.annotations.XmlBinding;
import org.eclipse.sapphire.modeling.xml.annotations.XmlElementBinding;
import org.eclipse.sapphire.modeling.xml.annotations.XmlListBinding;
import org.eclipse.sapphire.modeling.xml.annotations.XmlValueBinding;
import org.eclipse.sapphire.ui.IExportModelDocumentationOp;
import org.osgi.framework.Bundle;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class ExportModelDocumentationOpMethods
{
private static String STYLE;
public static String execute( final IExportModelDocumentationOp op,
final ElementType type,
final IProgressMonitor monitor )
{
final StringWriter stringWriter = new StringWriter();
final PrintWriter out = new PrintWriter( stringWriter );
if( op.getCreateFinishedDocument().content() )
{
out.println( "<html>" );
out.println();
out.println( "<head>" );
out.println( " <title>" + op.getDocumentTitle().content() + "</title>" );
if( op.getEmbedDefaultStyle().content() )
{
out.println( style() );
}
out.println( "</head>" );
out.println();
out.println( "<body>" );
}
execute( type, out );
if( op.getCreateFinishedDocument().content() )
{
out.println( "<br/><br/>" );
out.println( "</body>" );
out.println();
out.println( "</head>" );
}
out.flush();
return stringWriter.getBuffer().toString();
}
private static void execute( final ElementType type,
final PrintWriter out )
{
// Build a sorted map of XML path to property.
final TreeMap<String,PropertyDef> properties = new TreeMap<String,PropertyDef>();
for( PropertyDef property : type.properties() )
{
String xmlPath = null;
final XmlBinding xmlBindingAnnotation = property.getAnnotation( XmlBinding.class );
if( xmlBindingAnnotation != null )
{
xmlPath = xmlBindingAnnotation.path();
}
if( xmlPath == null )
{
final XmlValueBinding xmlValueBindingAnnotation = property.getAnnotation( XmlValueBinding.class );
if( xmlValueBindingAnnotation != null )
{
xmlPath = xmlValueBindingAnnotation.path();
}
}
if( xmlPath == null )
{
final XmlElementBinding xmlElementBindingAnnotation = property.getAnnotation( XmlElementBinding.class );
if( xmlElementBindingAnnotation != null )
{
final int mappingsCount = xmlElementBindingAnnotation.mappings().length;
if( mappingsCount == 0 )
{
xmlPath = xmlElementBindingAnnotation.path();
}
else if( mappingsCount == 1 )
{
xmlPath = xmlElementBindingAnnotation.mappings()[ 0 ].element();
if( xmlElementBindingAnnotation.path().length() > 0 )
{
xmlPath = xmlElementBindingAnnotation.path() + "/" + xmlPath;
}
}
else
{
continue; // todo: report unsupported
}
}
}
if( xmlPath == null )
{
final XmlListBinding xmlListBindingAnnotation = property.getAnnotation( XmlListBinding.class );
if( xmlListBindingAnnotation != null )
{
if( xmlListBindingAnnotation.mappings().length == 1 )
{
xmlPath = xmlListBindingAnnotation.mappings()[ 0 ].element();
if( xmlListBindingAnnotation.path().length() > 0 )
{
xmlPath = xmlListBindingAnnotation.path() + "/" + xmlPath;
}
}
else
{
continue; // todo: report unsupported
}
}
}
if( xmlPath != null )
{
properties.put( xmlPath, property );
}
}
// Write the summary document fragment
out.println( "<table>" );
out.println( " <tr>" );
out.println( " <th>Element</th>" );
out.println( " <th>Cardinality</th>" );
out.println( " <th>Description</th>" );
out.println( " </tr>" );
for( Map.Entry<String,PropertyDef> entry : properties.entrySet() )
{
final String xmlPath = entry.getKey();
final PropertyDef property = entry.getValue();
final String cardinality;
if( property instanceof ValueProperty )
{
if( property.hasAnnotation( Required.class ) )
{
cardinality = "1";
}
else
{
cardinality = "0 or 1";
}
}
else if( property instanceof ElementProperty )
{
cardinality = "0 or 1";
}
else if( property instanceof ListProperty )
{
cardinality = "0 or more";
}
else
{
throw new IllegalStateException();
}
out.println( " <tr>" );
out.println( td( xmlPath ) );
out.println( td( cardinality ) );
out.println( " <td>" );
if( property.hasAnnotation( Documentation.class ) )
{
documentation( out, property.getAnnotation( Documentation.class ) );
}
else
{
out.println( " " );
}
if( property instanceof ElementProperty || property instanceof ListProperty )
{
boolean skip = false;
final ElementType childType = property.service( PossibleTypesService.class ).types().iterator().next();
final SortedSet<PropertyDef> childTypeProperties = childType.properties();
if( childTypeProperties.size() == 1 )
{
final PropertyDef childTypeProperty = childTypeProperties.first();
if( childTypeProperty instanceof ValueProperty )
{
if( childTypeProperty.hasAnnotation( XmlBinding.class ) )
{
final XmlBinding b = childTypeProperty.getAnnotation( XmlBinding.class );
if( b != null && b.path().length() == 0 )
{
skip = true;
}
}
else if( childTypeProperty.hasAnnotation( XmlValueBinding.class ) )
{
final XmlValueBinding b = childTypeProperty.getAnnotation( XmlValueBinding.class );
if( b != null && b.path().length() == 0 )
{
skip = true;
}
}
}
}
if( ! skip )
{
out.println( "<br/><br/>" );
execute( childType, out );
out.println( "<br/>" );
}
}
out.println( " </td>" );
out.println( " </tr>" );
}
out.println( "</table>" );
out.println();
}
private static void documentation( final PrintWriter out,
final Documentation doc )
{
final String text = doc.content();
final DocumentationContent content = DocumentationContent.parse( text );
final String html = HtmlFormatter.format( content );
out.println( html );
}
private static String style()
{
if( STYLE == null )
{
final StringBuilder buf = new StringBuilder();
buf.append( "<style type=\"text/css\">\n" );
try
{
final Bundle bundle = Platform.getBundle( "org.eclipse.sapphire.doc" );
if( bundle != null )
{
final URL url = bundle.getEntry( "html/style.css" );
if( url != null )
{
try( InputStream in = url.openStream() )
{
final Reader reader = new InputStreamReader( in, UTF_8 );
final char[] chars = new char[ 1024 ];
for( int count = reader.read( chars ); count != -1; count = reader.read( chars ) )
{
buf.append( chars, 0, count );
}
}
}
}
}
catch( Exception e )
{
Sapphire.service( LoggingService.class ).log( e );
}
buf.append( "\n</style>" );
STYLE = buf.toString();
}
return STYLE;
}
private static String normalize( final String text,
final String textForNull )
{
return ( text == null || text.trim().length() == 0 ? textForNull : text );
}
private static String td( final String value )
{
final StringBuilder buf = new StringBuilder();
buf.append( " <td>" );
buf.append( normalize( value, " " ) );
buf.append( "</td>" );
return buf.toString();
}
}