| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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 |
| * |
| |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.debug.ui.interpreters; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.dltk.core.environment.EnvironmentPathUtils; |
| import org.eclipse.dltk.core.environment.IFileHandle; |
| import org.eclipse.dltk.debug.ui.DLTKDebugUIPlugin; |
| import org.eclipse.dltk.debug.ui.IDLTKDebugUIConstants; |
| import org.eclipse.dltk.launching.LibraryLocation; |
| import org.eclipse.osgi.util.NLS; |
| |
| /** |
| * Wrapper for an original library location, to support editing. |
| * |
| */ |
| public final class LibraryStandin { |
| private IPath fLibraryLocation; |
| |
| /** |
| * Creates a new library standin on the given library location. |
| */ |
| public LibraryStandin(LibraryLocation libraryLocation) { |
| fLibraryLocation = libraryLocation.getLibraryPath(); |
| } |
| |
| public LibraryStandin(IPath path) { |
| fLibraryLocation = path; |
| } |
| |
| /** |
| * Returns the InterpreterEnvironment library archive location. |
| * |
| * @return The InterpreterEnvironment library archive location. |
| */ |
| public String getLibraryPathString() { |
| return EnvironmentPathUtils.getLocalPathString(fLibraryLocation); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| public boolean equals(Object obj) { |
| if (obj instanceof LibraryStandin) { |
| LibraryStandin lib = (LibraryStandin) obj; |
| return fLibraryLocation.equals(lib.fLibraryLocation); |
| } |
| return false; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.lang.Object#hashCode() |
| */ |
| public int hashCode() { |
| return fLibraryLocation.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(fLibraryLocation); |
| } |
| |
| /** |
| * Returns a status for this library describing any error states |
| * |
| * @param environment |
| * |
| * @return |
| */ |
| public IStatus validate() { |
| IFileHandle f = EnvironmentPathUtils.getFile(fLibraryLocation); |
| if (!f.exists()) { |
| return new Status(IStatus.ERROR, DLTKDebugUIPlugin.PLUGIN_ID, |
| IDLTKDebugUIConstants.INTERNAL_ERROR, NLS |
| .bind(InterpretersMessages.LibraryStandin_0, f |
| .toString()), null); |
| } |
| return Status.OK_STATUS; |
| } |
| |
| } |