| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.jdt.core.*; |
| |
| public class DeletePackageFragmentRootOperation extends JavaModelOperation { |
| |
| int updateResourceFlags; |
| int updateModelFlags; |
| |
| public DeletePackageFragmentRootOperation( |
| IPackageFragmentRoot root, |
| int updateResourceFlags, |
| int updateModelFlags) { |
| |
| super(root); |
| this.updateResourceFlags = updateResourceFlags; |
| this.updateModelFlags = updateModelFlags; |
| } |
| |
| protected void executeOperation() throws JavaModelException { |
| |
| IPackageFragmentRoot root = (IPackageFragmentRoot)getElementToProcess(); |
| IClasspathEntry rootEntry = root.getRawClasspathEntry(); |
| |
| // remember olds roots |
| DeltaProcessor deltaProcessor = JavaModelManager.getJavaModelManager().getDeltaProcessor(); |
| if (deltaProcessor.oldRoots == null) |
| deltaProcessor.oldRoots = new HashMap(); |
| |
| // update classpath if needed |
| if ((this.updateModelFlags & IPackageFragmentRoot.ORIGINATING_PROJECT_CLASSPATH) != 0) { |
| updateProjectClasspath(rootEntry.getPath(), root.getJavaProject(), deltaProcessor.oldRoots); |
| } |
| if ((this.updateModelFlags & IPackageFragmentRoot.OTHER_REFERRING_PROJECTS_CLASSPATH) != 0) { |
| updateReferringProjectClasspaths(rootEntry.getPath(), root.getJavaProject(), deltaProcessor.oldRoots); |
| } |
| |
| // delete resource |
| if (!root.isExternal() && (this.updateModelFlags & IPackageFragmentRoot.NO_RESOURCE_MODIFICATION) == 0) { |
| deleteResource(root, rootEntry); |
| } |
| } |
| |
| protected void deleteResource( |
| IPackageFragmentRoot root, |
| IClasspathEntry rootEntry) |
| throws JavaModelException { |
| final char[][] exclusionPatterns = ((ClasspathEntry)rootEntry).fullExclusionPatternChars(); |
| IResource rootResource = ((JavaElement) root).resource(); |
| if (rootEntry.getEntryKind() != IClasspathEntry.CPE_SOURCE || exclusionPatterns == null) { |
| try { |
| rootResource.delete(this.updateResourceFlags, this.progressMonitor); |
| } catch (CoreException e) { |
| throw new JavaModelException(e); |
| } |
| } else { |
| final IPath[] nestedFolders = getNestedFolders(root); |
| IResourceProxyVisitor visitor = new IResourceProxyVisitor() { |
| public boolean visit(IResourceProxy proxy) throws CoreException { |
| if (proxy.getType() == IResource.FOLDER) { |
| IPath path = proxy.requestFullPath(); |
| if (prefixesOneOf(path, nestedFolders)) { |
| // equals if nested source folder |
| return !equalsOneOf(path, nestedFolders); |
| } else { |
| // subtree doesn't contain any nested source folders |
| proxy.requestResource().delete(DeletePackageFragmentRootOperation.this.updateResourceFlags, DeletePackageFragmentRootOperation.this.progressMonitor); |
| return false; |
| } |
| } else { |
| proxy.requestResource().delete(DeletePackageFragmentRootOperation.this.updateResourceFlags, DeletePackageFragmentRootOperation.this.progressMonitor); |
| return false; |
| } |
| } |
| }; |
| try { |
| rootResource.accept(visitor, IResource.NONE); |
| } catch (CoreException e) { |
| throw new JavaModelException(e); |
| } |
| } |
| setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE); |
| } |
| |
| |
| /* |
| * Deletes the classpath entries equals to the given rootPath from all Java projects. |
| */ |
| protected void updateReferringProjectClasspaths(IPath rootPath, IJavaProject projectOfRoot, Map oldRoots) throws JavaModelException { |
| IJavaModel model = getJavaModel(); |
| IJavaProject[] projects = model.getJavaProjects(); |
| for (int i = 0, length = projects.length; i < length; i++) { |
| IJavaProject project = projects[i]; |
| if (project.equals(projectOfRoot)) continue; |
| updateProjectClasspath(rootPath, project, oldRoots); |
| } |
| } |
| |
| /* |
| * Deletes the classpath entries equals to the given rootPath from the given project. |
| */ |
| protected void updateProjectClasspath(IPath rootPath, IJavaProject project, Map oldRoots) throws JavaModelException { |
| // remember old roots |
| oldRoots.put(project, project.getPackageFragmentRoots()); |
| |
| IClasspathEntry[] classpath = project.getRawClasspath(); |
| IClasspathEntry[] newClasspath = null; |
| int cpLength = classpath.length; |
| int newCPIndex = -1; |
| for (int j = 0; j < cpLength; j++) { |
| IClasspathEntry entry = classpath[j]; |
| if (rootPath.equals(entry.getPath())) { |
| if (newClasspath == null) { |
| newClasspath = new IClasspathEntry[cpLength-1]; |
| System.arraycopy(classpath, 0, newClasspath, 0, j); |
| newCPIndex = j; |
| } |
| } else if (newClasspath != null) { |
| newClasspath[newCPIndex++] = entry; |
| } |
| } |
| if (newClasspath != null) { |
| if (newCPIndex < newClasspath.length) { |
| System.arraycopy(newClasspath, 0, newClasspath = new IClasspathEntry[newCPIndex], 0, newCPIndex); |
| } |
| project.setRawClasspath(newClasspath, this.progressMonitor); |
| } |
| } |
| protected IJavaModelStatus verify() { |
| IJavaModelStatus status = super.verify(); |
| if (!status.isOK()) { |
| return status; |
| } |
| IJavaElement root = getElementToProcess(); |
| if (root == null || !root.exists()) { |
| return new JavaModelStatus(IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, root); |
| } |
| |
| IResource resource = ((JavaElement) root).resource(); |
| if (resource instanceof IFolder) { |
| if (resource.isLinked()) { |
| return new JavaModelStatus(IJavaModelStatusConstants.INVALID_RESOURCE, root); |
| } |
| } |
| return JavaModelStatus.VERIFIED_OK; |
| } |
| |
| } |