001/* 002 * Copyright 2007-2018 The jdeb developers. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.vafer.jdeb.utils; 017 018import java.io.File; 019import java.io.IOException; 020 021/** 022 * Simple utilities to deal with symbolic links 023 */ 024public final class SymlinkUtils { 025 private SymlinkUtils() { 026 } 027 028 public static boolean isSymbolicLink(final File file) throws IOException { 029 final File canon; 030 if (file.getParent() == null) { 031 canon = file; 032 } else { 033 final File canonDir = file.getParentFile().getCanonicalFile(); 034 canon = new File(canonDir, file.getName()); 035 } 036 return !canon.getCanonicalFile().equals(canon.getAbsoluteFile()); 037 } 038 039 public static String readSymbolicLink(final File file) throws IOException { 040 return file.getCanonicalFile().getPath(); 041 } 042 043}