| /****************************************************************************** |
| * 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.HashMap; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IAdapterManager; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.wst.common.project.facet.core.IActionConfig; |
| import org.eclipse.wst.common.project.facet.core.IActionConfigFactory; |
| import org.eclipse.wst.common.project.facet.core.IActionDefinition; |
| import org.eclipse.wst.common.project.facet.core.IConstraint; |
| import org.eclipse.wst.common.project.facet.core.IDelegate; |
| import org.eclipse.wst.common.project.facet.core.IGroup; |
| import org.eclipse.wst.common.project.facet.core.IProjectFacet; |
| import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion; |
| import org.eclipse.wst.common.project.facet.core.IFacetedProject.Action; |
| import org.osgi.framework.Bundle; |
| |
| /** |
| * The implementation of the <code>IProjectFacetVersion</code> interface. |
| * |
| * @author <a href="mailto:kosta@bea.com">Konstantin Komissarchik</a> |
| */ |
| |
| public final class ProjectFacetVersion |
| |
| implements IProjectFacetVersion, IVersion |
| |
| { |
| private ProjectFacet facet; |
| private String version; |
| private IConstraint constraint; |
| private String plugin; |
| private final HashMap delegates = new HashMap(); |
| |
| ProjectFacetVersion() {} |
| |
| public IProjectFacet getProjectFacet() |
| { |
| return this.facet; |
| } |
| |
| void setProjectFacet( final ProjectFacet facet ) |
| { |
| this.facet = facet; |
| } |
| |
| public String getVersionString() |
| { |
| return this.version; |
| } |
| |
| void setVersionString( final String version ) |
| { |
| this.version = version; |
| } |
| |
| public Versionable getVersionable() |
| { |
| return this.facet; |
| } |
| |
| public IConstraint getConstraint() |
| { |
| if( this.constraint == null ) |
| { |
| this.constraint = new Constraint( this, IConstraint.Type.AND, new Object[ 0 ] ); |
| } |
| |
| return this.constraint; |
| } |
| |
| void setConstraint( final IConstraint constraint ) |
| { |
| this.constraint = constraint; |
| } |
| |
| void setPlugin( final String plugin ) |
| { |
| this.plugin = plugin; |
| } |
| |
| public boolean supports( final Action.Type type ) |
| { |
| try |
| { |
| return getActionDefinition( type ) != null; |
| } |
| catch( CoreException e ) |
| { |
| FacetCorePlugin.log( e ); |
| return false; |
| } |
| } |
| |
| public IActionDefinition getActionDefinition( final Action.Type type ) |
| |
| throws CoreException |
| |
| { |
| return this.facet.getActionDefinition( this, type ); |
| } |
| |
| public Object createActionConfig( final Action.Type type, |
| final String pjname ) |
| |
| throws CoreException |
| |
| { |
| if( ! supports( type ) ) |
| { |
| final String msg |
| = NLS.bind( Resources.actionNotSupported, toString(), |
| type.toString() ); |
| |
| throw new CoreException( FacetCorePlugin.createErrorStatus( msg ) ); |
| } |
| |
| final ActionDefinition def |
| = this.facet.getActionDefinition( this, type ); |
| |
| if( def == null || def.getConfigFactoryClassName() == null ) |
| { |
| return null; |
| } |
| else |
| { |
| final String clname = def.getConfigFactoryClassName(); |
| final Object temp = create( clname ); |
| |
| if( ! ( temp instanceof IActionConfigFactory ) ) |
| { |
| final String msg |
| = NLS.bind( Resources.notInstanceOf, clname, |
| IActionConfigFactory.class.getName() ); |
| |
| throw new CoreException( FacetCorePlugin.createErrorStatus( msg ) ); |
| } |
| |
| final Object config = ( (IActionConfigFactory) temp ).create(); |
| |
| IActionConfig cfg = null; |
| |
| if( config instanceof IActionConfig ) |
| { |
| cfg = (IActionConfig) config; |
| } |
| else |
| { |
| final IAdapterManager m = Platform.getAdapterManager(); |
| cfg = (IActionConfig) m.loadAdapter( config, IActionConfig.class.getName() ); |
| } |
| |
| if( cfg != null ) |
| { |
| cfg.setProjectName( pjname ); |
| cfg.setVersion( this ); |
| } |
| |
| return config; |
| } |
| } |
| |
| public boolean isSameActionConfig( final Action.Type type, |
| final IProjectFacetVersion fv ) |
| |
| throws CoreException |
| |
| { |
| return this.facet.getActionDefinition( fv, type ) |
| == this.facet.getActionDefinition( this, type ); |
| } |
| |
| public boolean isValidFor( final Set fixed ) |
| { |
| for( Iterator itr = fixed.iterator(); itr.hasNext(); ) |
| { |
| final IProjectFacet f = (IProjectFacet) itr.next(); |
| |
| if( f.getVersions().contains( this ) ) |
| { |
| return true; |
| } |
| } |
| |
| for( Iterator itr1 = fixed.iterator(); itr1.hasNext(); ) |
| { |
| final IProjectFacet f = (IProjectFacet) itr1.next(); |
| |
| boolean conflictsWithAllVersions = true; |
| |
| for( Iterator itr2 = f.getVersions().iterator(); itr2.hasNext(); ) |
| { |
| final IProjectFacetVersion fv |
| = (IProjectFacetVersion) itr2.next(); |
| |
| if( ! ( this.conflictsWith( fv ) || fv.conflictsWith( this ) ) ) |
| { |
| conflictsWithAllVersions = false; |
| break; |
| } |
| } |
| |
| if( conflictsWithAllVersions ) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| public boolean conflictsWith( final IProjectFacetVersion fv ) |
| { |
| if( this == fv ) |
| { |
| return false; |
| } |
| else if( this.facet == fv.getProjectFacet() ) |
| { |
| return true; |
| } |
| else |
| { |
| return conflictsWith( fv, getConstraint() ); |
| } |
| } |
| |
| private boolean conflictsWith( final IProjectFacetVersion fv, |
| final IConstraint op ) |
| { |
| if( op.getType() == IConstraint.Type.AND ) |
| { |
| for( Iterator itr = op.getOperands().iterator(); itr.hasNext(); ) |
| { |
| if( conflictsWith( fv, (IConstraint) itr.next() ) ) |
| { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| else if( op.getType() == IConstraint.Type.OR ) |
| { |
| boolean allBranchesConflict = true; |
| |
| for( Iterator itr = op.getOperands().iterator(); itr.hasNext(); ) |
| { |
| if( ! conflictsWith( fv, (IConstraint) itr.next() ) ) |
| { |
| allBranchesConflict = false; |
| break; |
| } |
| } |
| |
| return allBranchesConflict; |
| } |
| else if( op.getType() == IConstraint.Type.CONFLICTS ) |
| { |
| final Object firstOperand = op.getOperand( 0 ); |
| |
| if( firstOperand instanceof IGroup ) |
| { |
| final IGroup group = (IGroup) firstOperand; |
| return group.getMembers().contains( fv ); |
| } |
| else |
| { |
| final IProjectFacet f = (IProjectFacet) firstOperand; |
| |
| final VersionExpr vexpr |
| = op.getOperands().size() == 2 |
| ? (VersionExpr) op.getOperand( 1 ) : null; |
| |
| try |
| { |
| if( fv.getProjectFacet() == f ) |
| { |
| if( vexpr == null || vexpr.evaluate( (IVersion ) fv ) ) |
| { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| catch( CoreException e ) |
| { |
| FacetCorePlugin.log( e ); |
| return false; |
| } |
| } |
| } |
| else if( op.getType() == IConstraint.Type.REQUIRES ) |
| { |
| final IProjectFacet rf = (IProjectFacet) op.getOperand( 0 ); |
| final VersionExpr vexpr = (VersionExpr) op.getOperand( 1 ); |
| |
| final boolean soft |
| = ( (Boolean) op.getOperand( 2 ) ).booleanValue(); |
| |
| if( soft ) |
| { |
| return true; |
| } |
| else |
| { |
| boolean conflictsWithAllVersions = true; |
| |
| try |
| { |
| final String vexprstr = vexpr.toString(); |
| |
| for( Iterator itr = rf.getVersions( vexprstr ).iterator(); |
| itr.hasNext(); ) |
| { |
| final IProjectFacetVersion rfv |
| = (IProjectFacetVersion) itr.next(); |
| |
| if( ! rfv.conflictsWith( fv ) ) |
| { |
| conflictsWithAllVersions = false; |
| break; |
| } |
| } |
| } |
| catch( CoreException e ) |
| { |
| FacetCorePlugin.log( e ); |
| return false; |
| } |
| |
| return conflictsWithAllVersions; |
| } |
| } |
| else |
| { |
| throw new IllegalStateException(); |
| } |
| } |
| |
| IDelegate getDelegate( final Action.Type type ) |
| |
| throws CoreException |
| |
| { |
| Object delegate = this.delegates.get( type ); |
| |
| if( delegate == null ) |
| { |
| final ActionDefinition def |
| = this.facet.getActionDefinition( this, type ); |
| |
| if( def == null ) |
| { |
| return null; |
| } |
| |
| final String clname = def.getDelegateClassName(); |
| delegate = create( clname ); |
| |
| if( ! ( delegate instanceof IDelegate ) ) |
| { |
| final String msg |
| = NLS.bind( Resources.notInstanceOf, clname, |
| IDelegate.class.getName() ); |
| |
| throw new CoreException( FacetCorePlugin.createErrorStatus( msg ) ); |
| } |
| |
| this.delegates.put( type, delegate ); |
| } |
| |
| return (IDelegate) delegate; |
| } |
| |
| private Object create( final String clname ) |
| |
| throws CoreException |
| |
| { |
| final Bundle bundle = Platform.getBundle( this.plugin ); |
| |
| try |
| { |
| final Class cl = bundle.loadClass( clname ); |
| return cl.newInstance(); |
| } |
| catch( Exception e ) |
| { |
| final String msg |
| = NLS.bind( Resources.failedToCreate, clname ); |
| |
| final IStatus st = FacetCorePlugin.createErrorStatus( msg, e ); |
| |
| throw new CoreException( st ); |
| } |
| } |
| |
| public String toString() |
| { |
| return this.facet.getLabel() + " " + this.version; //$NON-NLS-1$ |
| } |
| |
| private static final class Resources |
| |
| extends NLS |
| |
| { |
| public static String actionNotSupported; |
| public static String notInstanceOf; |
| public static String failedToCreate; |
| |
| static |
| { |
| initializeMessages( ProjectFacetVersion.class.getName(), |
| Resources.class ); |
| } |
| } |
| |
| } |
