| /******************************************************************************* |
| * Copyright (c) 2009 Red Hat and others. |
| * 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: |
| * Red Hat - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.common.internal.modulecore; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.jst.common.internal.modulecore.SingleRootUtil.SingleRootCallback; |
| import org.eclipse.wst.common.componentcore.internal.flat.AbstractFlattenParticipant; |
| import org.eclipse.wst.common.componentcore.internal.flat.FlatFolder; |
| import org.eclipse.wst.common.componentcore.internal.flat.FlatResource; |
| import org.eclipse.wst.common.componentcore.internal.flat.IFlatFile; |
| import org.eclipse.wst.common.componentcore.internal.flat.IFlatFolder; |
| import org.eclipse.wst.common.componentcore.internal.flat.IFlatResource; |
| import org.eclipse.wst.common.componentcore.internal.flat.IFlattenParticipant; |
| import org.eclipse.wst.common.componentcore.internal.flat.VirtualComponentFlattenUtility; |
| import org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.FlatComponentTaskModel; |
| import org.eclipse.wst.common.componentcore.resources.IVirtualComponent; |
| |
| /** |
| * Single root optimization. |
| * @author rob |
| */ |
| public class SingleRootExportParticipant extends AbstractFlattenParticipant { |
| private SingleRootParticipantCallback callbackHandler; |
| private IVirtualComponent rootComponent; |
| private FlatComponentTaskModel dataModel; |
| |
| public interface SingleRootParticipantCallback extends SingleRootCallback { |
| public IFlattenParticipant[] getDelegateParticipants(); |
| } |
| |
| public SingleRootExportParticipant() { |
| super(); |
| callbackHandler = null; |
| } |
| public SingleRootExportParticipant(SingleRootParticipantCallback handler) { |
| this(); |
| callbackHandler = handler; |
| } |
| |
| @Override |
| public void initialize(IVirtualComponent component, |
| FlatComponentTaskModel dataModel, List<IFlatResource> resources) { |
| this.rootComponent = component; |
| this.dataModel = dataModel; |
| } |
| |
| |
| @Override |
| public boolean canOptimize(IVirtualComponent component, |
| FlatComponentTaskModel dataModel) { |
| return new SingleRootUtil(component, callbackHandler).isSingleRoot(); |
| } |
| |
| @Override |
| public void optimize(IVirtualComponent component, |
| FlatComponentTaskModel dataModel, List<IFlatResource> resources) { |
| try { |
| resources.clear(); // We want complete control |
| IContainer container = new SingleRootUtil(component).getSingleRoot(); |
| IFlatResource[] mr = getMembers(resources, container, new Path("")); //$NON-NLS-1$ |
| int size = mr.length; |
| for (int j = 0; j < size; j++) { |
| resources.add(mr[j]); |
| } |
| |
| // run finalizers |
| if( callbackHandler != null ) { |
| IFlattenParticipant[] delegates = callbackHandler.getDelegateParticipants(); |
| for(int i = 0; i < delegates.length; i++ ) { |
| delegates[i].finalize(component, dataModel, resources); |
| } |
| } |
| } catch( CoreException ce ) { |
| // TODO |
| } |
| } |
| |
| protected IFlatResource[] getMembers(List<IFlatResource> members, |
| IContainer cont, IPath path) throws CoreException { |
| IResource[] res = cont.members(); |
| int size2 = res.length; |
| List list = new ArrayList(size2); |
| for (int j = 0; j < size2; j++) { |
| if (res[j] instanceof IContainer) { |
| IContainer cc = (IContainer) res[j]; |
| // Retrieve already existing module folder if applicable |
| IFlatFolder mf = (FlatFolder) VirtualComponentFlattenUtility.getExistingModuleResource(members,path.append(new Path(cc.getName()).makeRelative())); |
| if (mf == null) { |
| mf = new FlatFolder(cc, cc.getName(), path); |
| IFlatFolder parent = (FlatFolder) VirtualComponentFlattenUtility.getExistingModuleResource(members, path); |
| if (path.isEmpty() || path.equals(new Path("/"))) //$NON-NLS-1$ |
| members.add(mf); |
| else { |
| if (parent == null) |
| parent = VirtualComponentFlattenUtility.ensureParentExists(members, path, cc); |
| VirtualComponentFlattenUtility.addMembersToModuleFolder(parent, new IFlatResource[] {mf}); |
| } |
| } |
| IFlatResource[] mr = getMembers(members, cc, path.append(cc.getName())); |
| VirtualComponentFlattenUtility.addMembersToModuleFolder(mf, mr); |
| } else { |
| IFile f = (IFile) res[j]; |
| IFlatFile mf = VirtualComponentFlattenUtility.createModuleFile(f, path); |
| if( shouldAddExportableFile(rootComponent, rootComponent, dataModel, mf)) |
| list.add(mf); |
| } |
| } |
| FlatResource[] mr = new FlatResource[list.size()]; |
| list.toArray(mr); |
| return mr; |
| } |
| |
| @Override |
| public boolean shouldAddExportableFile(IVirtualComponent rootComponent, |
| IVirtualComponent currentComponent, FlatComponentTaskModel dataModel, |
| IFlatFile file) { |
| if( callbackHandler != null ) { |
| IFlattenParticipant[] delegates = callbackHandler.getDelegateParticipants(); |
| for(int i = 0; i < delegates.length; i++ ) { |
| if( !delegates[i].shouldAddExportableFile(rootComponent, currentComponent, dataModel, file)) |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| } |