--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/share/classes/com/sun/tools/javac/api/WrappingJavaFileManager.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,208 @@
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package com.sun.tools.javac.api;
+
+import java.io.IOException;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+import javax.tools.JavaFileObject.Kind;
+import javax.tools.*;
+
+/**
+ * Wraps all calls to a given file manager. Subclasses of this class
+ * might override some of these methods and might also provide
+ * additional fields and methods.
+ *
+ * <p>This class might be moved to {@link javax.tools} in a future
+ * release.
+ *
+ * <p><b>This is NOT part of any API supported by Sun Microsystems.
+ * If you write code that depends on this, you do so at your own
+ * risk. This code and its internal interfaces are subject to change
+ * or deletion without notice.</b></p>
+ *
+ * @param <M> the type of file manager wrapped to by this object
+ *
+ * @author Peter von der Ahé
+ * @since 1.6
+ */
+public class WrappingJavaFileManager<M extends JavaFileManager> extends ForwardingJavaFileManager<M> {
+
+ /**
+ * Creates a new instance of WrappingJavaFileManager.
+ * @param fileManager file manager to be wrapped
+ */
+ protected WrappingJavaFileManager(M fileManager) {
+ super(fileManager);
+ }
+
+ /**
+ * This implementation returns the given file object. Subclasses
+ * may override this behavior.
+ *
+ * @param fileObject a file object
+ */
+ protected FileObject wrap(FileObject fileObject) {
+ return fileObject;
+ }
+
+ /**
+ * This implementation forwards to {@link #wrap(FileObject)}.
+ * Subclasses may override this behavior.
+ *
+ * @param fileObject a file object
+ * @throws ClassCastException if the file object returned from the
+ * forwarded call is not a subtype of {@linkplain JavaFileObject}
+ */
+ protected JavaFileObject wrap(JavaFileObject fileObject) {
+ return (JavaFileObject)wrap((FileObject)fileObject);
+ }
+
+ /**
+ * This implementation returns the given file object. Subclasses
+ * may override this behavior.
+ *
+ * @param fileObject a file object
+ */
+ protected FileObject unwrap(FileObject fileObject) {
+ return fileObject;
+ }
+
+ /**
+ * This implementation forwards to {@link #unwrap(FileObject)}.
+ * Subclasses may override this behavior.
+ *
+ * @param fileObject a file object
+ * @throws ClassCastException if the file object returned from the
+ * forwarded call is not a subtype of {@linkplain JavaFileObject}
+ */
+ protected JavaFileObject unwrap(JavaFileObject fileObject) {
+ return (JavaFileObject)unwrap((FileObject)fileObject);
+ }
+
+ /**
+ * This implementation maps the given list of file objects by
+ * calling wrap on each. Subclasses may override this behavior.
+ *
+ * @param fileObjects a list of file objects
+ * @return the mapping
+ */
+ protected Iterable<JavaFileObject> wrap(Iterable<JavaFileObject> fileObjects) {
+ List<JavaFileObject> mapped = new ArrayList<JavaFileObject>();
+ for (JavaFileObject fileObject : fileObjects)
+ mapped.add(wrap(fileObject));
+ return Collections.unmodifiableList(mapped);
+ }
+
+ /**
+ * This implementation returns the given URI. Subclasses may
+ * override this behavior.
+ *
+ * @param uri a URI
+ */
+ protected URI unwrap(URI uri) {
+ return uri;
+ }
+
+ /**
+ * @throws IllegalStateException {@inheritDoc}
+ */
+ public Iterable<JavaFileObject> list(Location location,
+ String packageName,
+ Set<Kind> kinds,
+ boolean recurse)
+ throws IOException
+ {
+ return wrap(super.list(location, packageName, kinds, recurse));
+ }
+
+ /**
+ * @throws IllegalStateException {@inheritDoc}
+ */
+ public String inferBinaryName(Location location, JavaFileObject file) {
+ return super.inferBinaryName(location, unwrap(file));
+ }
+
+ /**
+ * @throws IllegalArgumentException {@inheritDoc}
+ * @throws UnsupportedOperationException {@inheritDoc}
+ * @throws IllegalStateException {@inheritDoc}
+ */
+ public JavaFileObject getJavaFileForInput(Location location,
+ String className,
+ Kind kind)
+ throws IOException
+ {
+ return wrap(super.getJavaFileForInput(location, className, kind));
+ }
+
+ /**
+ * @throws IllegalArgumentException {@inheritDoc}
+ * @throws UnsupportedOperationException {@inheritDoc}
+ * @throws IllegalStateException {@inheritDoc}
+ */
+ public JavaFileObject getJavaFileForOutput(Location location,
+ String className,
+ Kind kind,
+ FileObject sibling)
+ throws IOException
+ {
+ return wrap(super.getJavaFileForOutput(location, className, kind, unwrap(sibling)));
+ }
+
+ /**
+ * @throws IllegalArgumentException {@inheritDoc}
+ * @throws IllegalStateException {@inheritDoc}
+ */
+ public FileObject getFileForInput(Location location,
+ String packageName,
+ String relativeName)
+ throws IOException
+ {
+ return wrap(super.getFileForInput(location, packageName, relativeName));
+ }
+
+ /**
+ * @throws IllegalArgumentException {@inheritDoc}
+ * @throws IllegalStateException {@inheritDoc}
+ */
+ public FileObject getFileForOutput(Location location,
+ String packageName,
+ String relativeName,
+ FileObject sibling)
+ throws IOException
+ {
+ return wrap(super.getFileForOutput(location,
+ packageName,
+ relativeName,
+ unwrap(sibling)));
+ }
+
+}