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/******************************************************************************
* Copyright (c) 2006 BEA Systems, Inc.
* 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 API and implementation
******************************************************************************/
package org.eclipse.jst.j2ee.project.facet;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
import org.eclipse.wst.common.project.facet.core.IDelegate;
import org.eclipse.wst.common.project.facet.core.IFacetedProject;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;
import org.eclipse.wst.common.project.facet.core.ProjectFacetsManager;
import org.eclipse.wst.common.project.facet.core.runtime.IRuntime;
/**
* @author <a href="mailto:kosta@bea.com">Konstantin Komissarchik</a>
*/
public final class EarFacetRuntimeHandler
{
/**
* Private constructor. This class is not meant to be instantiated.
*/
private EarFacetRuntimeHandler() {}
public static void updateModuleProjectRuntime( final IProject earProject,
final IProject moduleProject,
final IProgressMonitor monitor )
throws CoreException
{
if( monitor != null )
{
monitor.beginTask( "", 1 );
}
try
{
final IFacetedProject earFacetedProject
= ProjectFacetsManager.create( earProject );
final IRuntime earRuntime = earFacetedProject.getPrimaryRuntime();
final IFacetedProject moduleFacetedProject
= ProjectFacetsManager.create( moduleProject );
if( moduleFacetedProject != null &&
! equals( earRuntime, moduleFacetedProject.getPrimaryRuntime() ) )
{
boolean supports = true;
if( earRuntime != null )
{
for( Iterator itr = moduleFacetedProject.getProjectFacets().iterator();
itr.hasNext(); )
{
final IProjectFacetVersion fver
= (IProjectFacetVersion) itr.next();
if( ! earRuntime.supports( fver ) )
{
supports = false;
break;
}
}
}
if( supports )
{
moduleFacetedProject.setTargetedRuntimes( Collections.singleton( earRuntime ), submon( monitor, 1 ) );
}
}
}
finally
{
if( monitor != null )
{
monitor.done();
}
}
}
public static void updateModuleProjectRuntime( final IProject earProject,
final Set moduleProjects,
final IProgressMonitor monitor )
throws CoreException
{
if( monitor != null )
{
monitor.beginTask( "", moduleProjects.size() );
}
try
{
for( Iterator itr = moduleProjects.iterator(); itr.hasNext(); )
{
final IProject moduleProject = (IProject) itr.next();
updateModuleProjectRuntime( earProject, moduleProject,
submon( monitor, 1 ) );
}
}
finally
{
if( monitor != null )
{
monitor.done();
}
}
}
public static final class RuntimeChangedDelegate
implements IDelegate
{
public void execute( final IProject project,
final IProjectFacetVersion fv,
final Object cfg,
final IProgressMonitor monitor )
throws CoreException
{
if( monitor != null )
{
monitor.beginTask( "", 10 ); //$NON-NLS-1$
}
try
{
// Compile the list of projects referenced by this ear project.
final Set moduleProjects = new HashSet();
final IVirtualComponent earvc
= ComponentCore.createComponent( project );
final IVirtualReference[] vrefs = earvc.getReferences();
for( int i = 0; i < vrefs.length; i++ )
{
final IVirtualReference vref = vrefs[ i ];
final IVirtualComponent vc = vref.getReferencedComponent();
moduleProjects.add( vc.getProject() );
}
if( monitor != null )
{
monitor.worked( 1 );
}
// Attempt to change the runtime for each of the referenced projects.
updateModuleProjectRuntime( project, moduleProjects,
submon( monitor, 9 ) );
}
finally
{
if( monitor != null )
{
monitor.done();
}
}
}
}
private static IProgressMonitor submon( final IProgressMonitor parent,
final int ticks )
{
return ( parent == null ? null : new SubProgressMonitor( parent, ticks ) );
}
private static boolean equals( final Object obj1,
final Object obj2 )
{
if( obj1 == obj2 )
{
return true;
}
else if( obj1 == null || obj2 == null )
{
return false;
}
else
{
return obj1.equals( obj2 );
}
}
}
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