| /******************************************************************************* |
| * Copyright (c) 2000, 2010 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.io.File; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| /** |
| * A package fragment root that corresponds to an external class folder. |
| * |
| * <p>NOTE: An external package fragment root never has an associated resource. |
| * |
| * @see org.eclipse.jdt.core.IPackageFragmentRoot |
| * @see org.eclipse.jdt.internal.core.PackageFragmentRootInfo |
| */ |
| public class ExternalPackageFragmentRoot extends PackageFragmentRoot { |
| |
| /** |
| * The path to the external folder |
| * (an OS path) |
| */ |
| protected final IPath externalPath; |
| |
| /** |
| * Constructs a package fragment root which is the root of the Java package directory hierarchy |
| * based on an external folder that is not contained in a <code>IJavaProject</code> and |
| * does not have an associated <code>IResource</code>. |
| */ |
| protected ExternalPackageFragmentRoot(IPath externalPath, JavaProject project) { |
| super(null, project); |
| this.externalPath = externalPath; |
| } |
| |
| protected ExternalPackageFragmentRoot(IResource linkedFolder, IPath externalPath, JavaProject project) { |
| super(linkedFolder, project); |
| this.externalPath = externalPath == null ? linkedFolder.getLocation() : externalPath; |
| } |
| |
| /** |
| * An external class folder is always K_BINARY. |
| */ |
| @Override |
| protected int determineKind(IResource underlyingResource) { |
| return IPackageFragmentRoot.K_BINARY; |
| } |
| /** |
| * Returns true if this handle represents the same external folder |
| * as the given handle. |
| * |
| * @see Object#equals |
| */ |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) |
| return true; |
| if (o instanceof ExternalPackageFragmentRoot) { |
| ExternalPackageFragmentRoot other= (ExternalPackageFragmentRoot) o; |
| return this.externalPath.equals(other.externalPath); |
| } |
| return false; |
| } |
| @Override |
| public String getElementName() { |
| return this.externalPath.lastSegment(); |
| } |
| /** |
| * @see IPackageFragmentRoot |
| */ |
| @Override |
| public int getKind() { |
| return IPackageFragmentRoot.K_BINARY; |
| } |
| @Override |
| int internalKind() throws JavaModelException { |
| return IPackageFragmentRoot.K_BINARY; |
| } |
| /** |
| * @see IPackageFragmentRoot |
| */ |
| @Override |
| public IPath getPath() { |
| return this.externalPath; |
| } |
| |
| /** |
| * @see IJavaElement |
| */ |
| @Override |
| public IResource getUnderlyingResource() throws JavaModelException { |
| return null; |
| } |
| @Override |
| public int hashCode() { |
| return this.externalPath.hashCode(); |
| } |
| /** |
| * @see IPackageFragmentRoot |
| */ |
| @Override |
| public boolean isExternal() { |
| return true; |
| } |
| |
| @Override |
| public IResource resource(PackageFragmentRoot root) { |
| if (this.resource == null) |
| return this.resource = JavaModelManager.getExternalManager().getFolder(this.externalPath); |
| return super.resource(root); |
| } |
| |
| @Override |
| protected boolean resourceExists(IResource underlyingResource) { |
| if (underlyingResource == null) |
| return false; |
| IPath location = underlyingResource.getLocation(); |
| if (location == null) |
| return false; |
| File file = location.toFile(); |
| if (file == null) |
| return false; |
| return file.exists(); |
| } |
| |
| @Override |
| protected void toStringAncestors(StringBuffer buffer) { |
| // don't show project as it is irrelevant for external folders. |
| } |
| } |