| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.dltk.internal.debug.ui.interpreters; |
| |
| import java.io.File; |
| import java.text.MessageFormat; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.dltk.debug.ui.DLTKDebugUIPlugin; |
| import org.eclipse.dltk.debug.ui.IDLTKDebugUIConstants; |
| import org.eclipse.dltk.launching.LibraryLocation; |
| |
| |
| |
| /** |
| * Wrapper for an original library location, to support editing. |
| * |
| */ |
| public final class LibraryStandin { |
| private IPath fSystemLibrary; |
| |
| /** |
| * Creates a new library standin on the given library location. |
| */ |
| public LibraryStandin(LibraryLocation libraryLocation) { |
| fSystemLibrary= libraryLocation.getSystemLibraryPath(); |
| } |
| |
| /** |
| * Returns the InterpreterEnvironment library archive location. |
| * |
| * @return The InterpreterEnvironment library archive location. |
| */ |
| public IPath getSystemLibraryPath() { |
| return fSystemLibrary; |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| public boolean equals(Object obj) { |
| if (obj instanceof LibraryStandin) { |
| LibraryStandin lib = (LibraryStandin)obj; |
| return getSystemLibraryPath().equals(lib.getSystemLibraryPath()); |
| } |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#hashCode() |
| */ |
| public int hashCode() { |
| return getSystemLibraryPath().hashCode(); |
| } |
| |
| /** |
| * Returns whether the given paths are equal - either may be <code>null</code>. |
| * @param path1 path to be compared |
| * @param path2 path to be compared |
| * @return whether the given paths are equal |
| */ |
| protected boolean equals(IPath path1, IPath path2) { |
| return equalsOrNull(path1, path2); |
| } |
| |
| /** |
| * Returns whether the given objects are equal - either may be <code>null</code>. |
| * @param o1 object to be compared |
| * @param o2 object to be compared |
| * @return whether the given objects are equal or both null |
| * |
| */ |
| private boolean equalsOrNull(Object o1, Object o2) { |
| if (o1 == null) { |
| return o2 == null; |
| } |
| if (o2 == null) { |
| return false; |
| } |
| return o1.equals(o2); |
| } |
| |
| |
| /** |
| * Returns an equivalent library location. |
| * |
| * @return library location |
| */ |
| public LibraryLocation toLibraryLocation() { |
| return new LibraryLocation(getSystemLibraryPath()); |
| } |
| |
| /** |
| * Returns a status for this library describing any error states |
| * |
| * @return |
| */ |
| public IStatus validate() { |
| File f = getSystemLibraryPath().toFile(); |
| if (!f.exists()) { |
| IPath path = getSystemLibraryPath(); |
| String message = "Path is empty"; |
| if( path != null ) { |
| message = path.toOSString(); |
| } |
| return new Status(IStatus.ERROR, DLTKDebugUIPlugin.PLUGIN_ID, IDLTKDebugUIConstants.INTERNAL_ERROR, |
| MessageFormat.format(InterpretersMessages.LibraryStandin_0, new String[]{message}), null); |
| } |
| return Status.OK_STATUS; |
| } |
| |
| } |