Package org.eclipse.sapphire.ui.def.internal

Source Code of org.eclipse.sapphire.ui.def.internal.JavaTypeReferenceServiceForSdef

/******************************************************************************
* Copyright (c) 2014 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.def.internal;

import org.eclipse.sapphire.Context;
import org.eclipse.sapphire.ValueProperty;
import org.eclipse.sapphire.java.ClassBasedJavaType;
import org.eclipse.sapphire.java.JavaType;
import org.eclipse.sapphire.java.JavaTypeName;
import org.eclipse.sapphire.java.JavaTypeReferenceService;
import org.eclipse.sapphire.modeling.annotations.Reference;
import org.eclipse.sapphire.services.ServiceCondition;
import org.eclipse.sapphire.services.ServiceContext;
import org.eclipse.sapphire.ui.def.IPackageReference;
import org.eclipse.sapphire.ui.def.ISapphireUiDef;

/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/

public final class JavaTypeReferenceServiceForSdef extends JavaTypeReferenceService
{
    @Override
    public JavaType resolve( final String name )
    {
        if( name != null )
        {
            final ISapphireUiDef sdef = context( ISapphireUiDef.class );
            final Context context = sdef.adapt( Context.class );
           
            if( context != null )
            {
                Class<?> cl = context.findClass( name );
               
                if( cl == null && name.indexOf( '.' ) == -1 )
                {
                    for( IPackageReference packageRef : sdef.getImportedPackages() )
                    {
                        final String packageName = packageRef.getName().text();
                       
                        if( packageName != null )
                        {
                            cl = context.findClass( packageName + "." + name );
                           
                            if( cl != null )
                            {
                                break;
                            }
                        }
                    }
                }
               
                if( cl != null )
                {
                    return new ClassBasedJavaType( cl );
                }
            }
        }
       
        return null;
    }
   
    public static final class Condition extends ServiceCondition
    {
        @Override
        public boolean applicable( final ServiceContext context )
        {
            final ValueProperty property = context.find( ValueProperty.class );
           
            if( property != null && property.getTypeClass() == JavaTypeName.class && context.find( ISapphireUiDef.class ) != null )
            {
                final Reference referenceAnnotation = property.getAnnotation( Reference.class );
               
                if( referenceAnnotation != null && referenceAnnotation.target() == JavaType.class )
                {
                    return true;
                }
            }
           
            return false;
        }
    }

}
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