| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.launching.sourcelookup; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.StringReader; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.PlatformObject; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.jdt.internal.launching.LaunchingMessages; |
| import org.eclipse.jdt.internal.launching.LaunchingPlugin; |
| import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants; |
| import org.eclipse.osgi.util.NLS; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| /** |
| * Locates source elements in a directory in the local |
| * file system. Returns instances of <code>LocalFileStorage</code>. |
| * <p> |
| * This class may be instantiated. |
| * </p> |
| * @see IJavaSourceLocation |
| * @since 2.0 |
| * @deprecated In 3.0, the debug platform provides source lookup facilities that |
| * should be used in place of the Java source lookup support provided in 2.0. |
| * The new facilities provide a source lookup director that coordinates source |
| * lookup among a set of participants, searching a set of source containers. |
| * See the following packages: <code>org.eclipse.debug.core.sourcelookup</code> |
| * and <code>org.eclipse.debug.core.sourcelookup.containers</code>. This class |
| * has been replaced by |
| * <code>org.eclipse.debug.core.sourcelookup.containers.DirectorySourceContainer</code>. |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| @Deprecated |
| public class DirectorySourceLocation extends PlatformObject implements IJavaSourceLocation { |
| |
| /** |
| * The directory associated with this source location |
| */ |
| private File fDirectory; |
| |
| /** |
| * Constructs a new empty source location to be initialized from |
| * a memento. |
| */ |
| public DirectorySourceLocation() { |
| } |
| |
| /** |
| * Constructs a new source location that will retrieve source |
| * elements from the given directory. |
| * |
| * @param directory a directory |
| */ |
| public DirectorySourceLocation(File directory) { |
| setDirectory(directory); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.launching.sourcelookup.IJavaSourceLocation#findSourceElement(java.lang.String) |
| */ |
| @Override |
| public Object findSourceElement(String name) throws CoreException { |
| if (getDirectory() == null) { |
| return null; |
| } |
| |
| String pathStr= name.replace('.', '/'); |
| int lastSlash = pathStr.lastIndexOf('/'); |
| try { |
| IPath root = new Path(getDirectory().getCanonicalPath()); |
| boolean possibleInnerType = false; |
| String typeName = pathStr; |
| do { |
| IPath filePath = root.append(new Path(typeName + ".java")); //$NON-NLS-1$ |
| File file = filePath.toFile(); |
| if (file.exists()) { |
| return new LocalFileStorage(file); |
| } |
| int index = typeName.lastIndexOf('$'); |
| if (index > lastSlash) { |
| typeName = typeName.substring(0, index); |
| possibleInnerType = true; |
| } else { |
| possibleInnerType = false; |
| } |
| } while (possibleInnerType); |
| } catch (IOException e) { |
| throw new CoreException(new Status(IStatus.ERROR, LaunchingPlugin.getUniqueIdentifier(), e.getMessage(), e)); |
| } |
| return null; |
| } |
| |
| /** |
| * Sets the directory in which source elements will |
| * be searched for. |
| * |
| * @param directory a directory |
| */ |
| private void setDirectory(File directory) { |
| fDirectory = directory; |
| } |
| |
| /** |
| * Returns the directory associated with this source |
| * location. |
| * |
| * @return directory |
| */ |
| public File getDirectory() { |
| return fDirectory; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| @Override |
| public boolean equals(Object object) { |
| return object instanceof DirectorySourceLocation && |
| getDirectory().equals(((DirectorySourceLocation)object).getDirectory()); |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#hashCode() |
| */ |
| @Override |
| public int hashCode() { |
| return getDirectory().hashCode(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.launching.sourcelookup.IJavaSourceLocation#getMemento() |
| */ |
| @Override |
| public String getMemento() throws CoreException { |
| Document doc = DebugPlugin.newDocument(); |
| Element node = doc.createElement("directorySourceLocation"); //$NON-NLS-1$ |
| doc.appendChild(node); |
| node.setAttribute("path", getDirectory().getAbsolutePath()); //$NON-NLS-1$ |
| return DebugPlugin.serializeDocument(doc); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.launching.sourcelookup.IJavaSourceLocation#initializeFrom(java.lang.String) |
| */ |
| @Override |
| public void initializeFrom(String memento) throws CoreException { |
| Exception ex = null; |
| try { |
| Element root = null; |
| DocumentBuilder parser = |
| DocumentBuilderFactory.newInstance().newDocumentBuilder(); |
| parser.setErrorHandler(new DefaultHandler()); |
| StringReader reader = new StringReader(memento); |
| InputSource source = new InputSource(reader); |
| root = parser.parse(source).getDocumentElement(); |
| |
| String path = root.getAttribute("path"); //$NON-NLS-1$ |
| if (isEmpty(path)) { |
| abort(LaunchingMessages.DirectorySourceLocation_Unable_to_initialize_source_location___missing_directory_path_3, null); |
| } else { |
| File dir = new File(path); |
| if (dir.exists() && dir.isDirectory()) { |
| setDirectory(dir); |
| } else { |
| abort(NLS.bind(LaunchingMessages.DirectorySourceLocation_Unable_to_initialize_source_location___directory_does_not_exist___0__4, new String[] {path}), null); |
| } |
| } |
| return; |
| } catch (ParserConfigurationException e) { |
| ex = e; |
| } catch (SAXException e) { |
| ex = e; |
| } catch (IOException e) { |
| ex = e; |
| } |
| abort(LaunchingMessages.DirectorySourceLocation_Exception_occurred_initializing_source_location__5, ex); |
| } |
| |
| private boolean isEmpty(String string) { |
| return string == null || string.length() == 0; |
| } |
| |
| /* |
| * Throws an internal error exception |
| */ |
| private void abort(String message, Throwable e) throws CoreException { |
| IStatus s = new Status(IStatus.ERROR, LaunchingPlugin.getUniqueIdentifier(), IJavaLaunchConfigurationConstants.ERR_INTERNAL_ERROR, message, e); |
| throw new CoreException(s); |
| } |
| } |