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- /*
- * Copyright (C) 2007, Robin Rosenberg <me@lathund.dewire.com>
- * Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.util;
-
- import java.io.File;
- import java.lang.reflect.InvocationTargetException;
- import java.lang.reflect.Method;
-
-
- /**
- * FS implementation for POSIX systems using Java6
- *
- * @since 3.0
- */
- public class FS_POSIX_Java6 extends FS_POSIX {
- private static final Method canExecute;
-
- private static final Method setExecute;
-
- static {
- canExecute = needMethod(File.class, "canExecute"); //$NON-NLS-1$
- setExecute = needMethod(File.class, "setExecutable", Boolean.TYPE); //$NON-NLS-1$
- }
-
- /**
- * @return true if Java has the ability to set and get the executable flag
- * on files
- */
- public static boolean hasExecute() {
- return canExecute != null && setExecute != null;
- }
-
- private static Method needMethod(final Class<?> on, final String name,
- final Class<?>... args) {
- try {
- return on.getMethod(name, args);
- } catch (SecurityException e) {
- return null;
- } catch (NoSuchMethodException e) {
- return null;
- }
- }
-
- /**
- * Constructor
- */
- public FS_POSIX_Java6() {
- super();
- }
-
- /**
- * Constructor
- *
- * @param src
- * instance whose attributes to copy
- */
- public FS_POSIX_Java6(FS src) {
- super(src);
- }
-
- @Override
- public FS newInstance() {
- return new FS_POSIX_Java6(this);
- }
-
- public boolean supportsExecute() {
- return true;
- }
-
- public boolean canExecute(final File f) {
- try {
- final Object r = canExecute.invoke(f, (Object[]) null);
- return ((Boolean) r).booleanValue();
- } catch (IllegalArgumentException e) {
- throw new Error(e);
- } catch (IllegalAccessException e) {
- throw new Error(e);
- } catch (InvocationTargetException e) {
- throw new Error(e);
- }
- }
-
- public boolean setExecute(final File f, final boolean canExec) {
- try {
- final Object r;
- r = setExecute.invoke(f, new Object[] { Boolean.valueOf(canExec) });
- return ((Boolean) r).booleanValue();
- } catch (IllegalArgumentException e) {
- throw new Error(e);
- } catch (IllegalAccessException e) {
- throw new Error(e);
- } catch (InvocationTargetException e) {
- throw new Error(e);
- }
- }
-
- @Override
- public boolean retryFailedLockFileCommit() {
- return false;
- }
- }
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