Package org.eclipse.sapphire.sdk.internal

Source Code of org.eclipse.sapphire.sdk.internal.SdkJavaTypeReferenceServiceForSdef$Condition

/******************************************************************************
* 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.sdk.internal;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.sapphire.Element;
import org.eclipse.sapphire.LoggingService;
import org.eclipse.sapphire.Sapphire;
import org.eclipse.sapphire.ValueProperty;
import org.eclipse.sapphire.java.JavaType;
import org.eclipse.sapphire.java.JavaTypeName;
import org.eclipse.sapphire.java.JavaTypeReferenceService;
import org.eclipse.sapphire.java.jdt.JdtJavaType;
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 SdkJavaTypeReferenceServiceForSdef extends JavaTypeReferenceService
{
    private IJavaProject project;
   
    @Override
    protected void initReferenceService()
    {
        this.project = JavaCore.create( context( Element.class ).adapt( IProject.class ) );
    }

    @Override
    public JavaType resolve( final String name )
    {
        if( name != null && name.trim().length() != 0 && ! name.startsWith( "." ) && ! name.endsWith( "." ) )
        {
            final String n = name.replace( '$', '.' );
           
            try
            {
                IType type = this.project.findType( n );
               
                if( type == null && name.indexOf( '.' ) == -1 )
                {
                    for( IPackageReference packageRef : context( ISapphireUiDef.class ).getImportedPackages() )
                    {
                        final String packageName = packageRef.getName().text();
                       
                        if( packageName != null )
                        {
                            type = this.project.findType( packageName, n );
           
                            if( type != null && type.exists() && ! type.isAnonymous() )
                            {
                                break;
                            }
                        }
                    }
                }
               
                if( type != null )
                {
                    return new JdtJavaType( type );
                }
            }
            catch( JavaModelException e )
            {
                Sapphire.service( LoggingService.class ).log( e );
            }
        }
       
        return null;
    }
   
    public static final class Condition extends ServiceCondition
    {
        @Override
        public boolean applicable( final ServiceContext context )
        {
            final ISapphireUiDef def = context.find( ISapphireUiDef.class );
            final ValueProperty property = context.find( ValueProperty.class );
           
            if( def != null && property != null && property.getTypeClass() == JavaTypeName.class )
            {
                final Reference referenceAnnotation = property.getAnnotation( Reference.class );
   
                if( referenceAnnotation != null && referenceAnnotation.target() == JavaType.class )
                {
                    final IProject project = def.adapt( IProject.class );
                   
                    if( project != null )
                    {
                        try
                        {
                            for( String nature : project.getDescription().getNatureIds() )
                            {
                                if( nature.equals( JavaCore.NATURE_ID ) )
                                {
                                    return true;
                                }
                            }
                        }
                        catch( CoreException e )
                        {
                            Sapphire.service( LoggingService.class ).log( e );
                        }
                    }
                }
            }
           
            return false;
        }
    }
   
}
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