1 /* 2 * $Id$ 3 * 4 * Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved. 5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 6 * 7 * This code is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 only, as 9 * published by the Free Software Foundation. Oracle designates this 10 * particular file as subject to the "Classpath" exception as provided 11 * by Oracle in the LICENSE file that accompanied this code. 12 * 13 * This code is distributed in the hope that it will be useful, but WITHOUT 14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16 * version 2 for more details (a copy is included in the LICENSE file that 17 * accompanied this code). 18 * 19 * You should have received a copy of the GNU General Public License version 20 * 2 along with this work; if not, write to the Free Software Foundation, 21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 22 * 23 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 24 * or visit www.oracle.com if you need additional information or have any 25 * questions. 26 */ 27 package com.sun.javatest.util; 28 29 import java.io.File; 30 import java.util.Map; 31 import java.util.Collections; 32 import java.util.LinkedHashMap; 33 34 public class FileInfoCache 35 { 36 37 private final int SIZE = 500; 38 39 // we can't use generics in util package but this is actually Map<String, Boolean> 40 private Map<String, Boolean> map = Collections.synchronizedMap( new LinkedHashMap<String, Boolean>() { 41 protected boolean removeEldestEntry(Map.Entry eldest) { 42 return size() > SIZE; 43 } 44 }); 45 46 public void put(File f, boolean b) { 47 map.put(f.getAbsolutePath(), b ? Boolean.TRUE : Boolean.FALSE); 48 } 49 50 public Boolean get(File f) { 51 return map.get(f.getAbsolutePath()); 52 } 53 54 public void clear() { 55 map.clear(); 56 } 57 }