| /****************************************************************************** |
| * Copyright (c) 2005 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.wst.common.project.facet.core.internal; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IncrementalProjectBuilder; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtension; |
| import org.eclipse.core.runtime.IExtensionPoint; |
| import org.eclipse.core.runtime.IExtensionRegistry; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.wst.common.project.facet.core.IFacetedProject; |
| import org.eclipse.wst.common.project.facet.core.IFacetedProjectValidator; |
| import org.eclipse.wst.common.project.facet.core.ProjectFacetsManager; |
| |
| /** |
| * @author <a href="mailto:kosta@bea.com">Konstantin Komissarchik</a> |
| */ |
| |
| public final class FacetedProjectValidationBuilder |
| |
| extends IncrementalProjectBuilder |
| |
| { |
| public static final String BUILDER_ID |
| = FacetCorePlugin.PLUGIN_ID + ".builder"; //$NON-NLS-1$ |
| |
| public static final String VALIDATORS_EXTENSION_ID = "validators"; //$NON-NLS-1$ |
| |
| private static final String EL_VALIDATOR = "validator"; //$NON-NLS-1$ |
| private static final String EL_FACET = "facet"; //$NON-NLS-1$ |
| private static final String ATTR_CLASS = "class"; //$NON-NLS-1$ |
| |
| private static final List validators = new ArrayList(); |
| |
| static |
| { |
| readMetadata(); |
| } |
| |
| protected IProject[] build( final int kind, |
| final Map args, |
| final IProgressMonitor monitor ) |
| |
| throws CoreException |
| |
| { |
| final IProject proj = getProject(); |
| final IFacetedProject fproj = ProjectFacetsManager.create( proj ); |
| |
| proj.deleteMarkers( IFacetedProjectValidator.BASE_MARKER_ID, true, |
| IResource.DEPTH_INFINITE ); |
| |
| for( Iterator itr = validators.iterator(); itr.hasNext(); ) |
| { |
| final ValidatorDefinition def = (ValidatorDefinition) itr.next(); |
| |
| if( def.isApplicable( fproj.getProjectFacets() ) ) |
| { |
| final IFacetedProjectValidator validator = def.getValidator(); |
| |
| if( validator != null ) |
| { |
| validator.validate( fproj ); |
| } |
| } |
| } |
| |
| return new IProject[0]; |
| } |
| |
| private static void readMetadata() |
| { |
| final IExtensionRegistry registry = Platform.getExtensionRegistry(); |
| |
| final IExtensionPoint point |
| = registry.getExtensionPoint( FacetCorePlugin.PLUGIN_ID, |
| VALIDATORS_EXTENSION_ID ); |
| |
| if( point == null ) |
| { |
| throw new RuntimeException( "Extension point not found!" ); //$NON-NLS-1$ |
| } |
| |
| final ArrayList cfgels = new ArrayList(); |
| final IExtension[] extensions = point.getExtensions(); |
| |
| for( int i = 0; i < extensions.length; i++ ) |
| { |
| final IConfigurationElement[] elements |
| = extensions[ i ].getConfigurationElements(); |
| |
| for( int j = 0; j < elements.length; j++ ) |
| { |
| cfgels.add( elements[ j ] ); |
| } |
| } |
| |
| for( int i = 0, n = cfgels.size(); i < n; i++ ) |
| { |
| final IConfigurationElement config |
| = (IConfigurationElement) cfgels.get( i ); |
| |
| if( config.getName().equals( EL_VALIDATOR ) ) |
| { |
| ValidatorDefinition def = new ValidatorDefinition(); |
| def.plugin = config.getContributor().getName(); |
| |
| def.className = config.getAttribute( ATTR_CLASS ); |
| |
| if( def.className == null ) |
| { |
| ProjectFacetsManagerImpl.reportMissingAttribute( config, ATTR_CLASS ); |
| continue; |
| } |
| |
| final IConfigurationElement[] children = config.getChildren(); |
| |
| for( int j = 0; j < children.length; j++ ) |
| { |
| final IConfigurationElement child = children[ j ]; |
| final String childName = child.getName(); |
| |
| if( childName.equals( EL_FACET ) ) |
| { |
| final ProjectFacetRef ref |
| = ProjectFacetRef.read( child ); |
| |
| if( ref != null ) |
| { |
| def.constraints.add( ref ); |
| } |
| else |
| { |
| def = null; |
| break; |
| } |
| } |
| } |
| |
| if( def != null ) |
| { |
| validators.add( def ); |
| } |
| } |
| } |
| } |
| |
| private static final class ValidatorDefinition |
| { |
| public String plugin; |
| public String className; |
| public IFacetedProjectValidator validator; |
| public final List constraints = new ArrayList(); |
| |
| public boolean isApplicable( final Set facets ) |
| |
| throws CoreException |
| |
| { |
| for( Iterator itr = this.constraints.iterator(); itr.hasNext(); ) |
| { |
| final ProjectFacetRef ref = (ProjectFacetRef) itr.next(); |
| |
| if( ! ref.check( facets ) ) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| public synchronized IFacetedProjectValidator getValidator() |
| |
| throws CoreException |
| |
| { |
| if( this.validator == null ) |
| { |
| final Object instance |
| = FacetCorePlugin.instantiate( this.plugin, |
| this.className, |
| IFacetedProjectValidator.class ); |
| |
| this.validator = (IFacetedProjectValidator) instance; |
| } |
| |
| return this.validator; |
| } |
| } |
| |
| } |