1/* 2 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.net.www.protocol.http; 27 28import java.util.LinkedList; 29import java.util.ListIterator; 30import java.util.HashMap; 31 32/** 33 * @author Michael McMahon 34 */ 35 36public class AuthCacheImpl implements AuthCache { 37 HashMap<String,LinkedList<AuthCacheValue>> hashtable; 38 39 public AuthCacheImpl () { 40 hashtable = new HashMap<String,LinkedList<AuthCacheValue>>(); 41 } 42 43 public void setMap (HashMap<String,LinkedList<AuthCacheValue>> map) { 44 hashtable = map; 45 } 46 47 // put a value in map according to primary key + secondary key which 48 // is the path field of AuthenticationInfo 49 50 public synchronized void put (String pkey, AuthCacheValue value) { 51 LinkedList<AuthCacheValue> list = hashtable.get (pkey); 52 String skey = value.getPath(); 53 if (list == null) { 54 list = new LinkedList<AuthCacheValue>(); 55 hashtable.put(pkey, list); 56 } 57 // Check if the path already exists or a super-set of it exists 58 ListIterator<AuthCacheValue> iter = list.listIterator(); 59 while (iter.hasNext()) { 60 AuthenticationInfo inf = (AuthenticationInfo)iter.next(); 61 if (inf.path == null || inf.path.startsWith (skey)) { 62 iter.remove (); 63 } 64 } 65 iter.add(value); 66 } 67 68 // get a value from map checking both primary 69 // and secondary (urlpath) key 70 71 public synchronized AuthCacheValue get (String pkey, String skey) { 72 AuthenticationInfo result = null; 73 LinkedList<AuthCacheValue> list = hashtable.get (pkey); 74 if (list == null || list.size() == 0) { 75 return null; 76 } 77 if (skey == null) { 78 // list should contain only one element 79 return (AuthenticationInfo)list.get (0); 80 } 81 ListIterator<AuthCacheValue> iter = list.listIterator(); 82 while (iter.hasNext()) { 83 AuthenticationInfo inf = (AuthenticationInfo)iter.next(); 84 if (skey.startsWith (inf.path)) { 85 return inf; 86 } 87 } 88 return null; 89 } 90 91 public synchronized void remove (String pkey, AuthCacheValue entry) { 92 LinkedList<AuthCacheValue> list = hashtable.get (pkey); 93 if (list == null) { 94 return; 95 } 96 if (entry == null) { 97 list.clear(); 98 return; 99 } 100 ListIterator<AuthCacheValue> iter = list.listIterator (); 101 while (iter.hasNext()) { 102 AuthenticationInfo inf = (AuthenticationInfo)iter.next(); 103 if (entry.equals(inf)) { 104 iter.remove (); 105 } 106 } 107 } 108} 109