/*
* Copyright (c) 2003, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.net.www.protocol.http;
import java.io.IOException;
import java.net.URL;
import java.util.Hashtable;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.Enumeration;
import java.util.HashMap;
/**
* @author Michael McMahon
*/
public class AuthCacheImpl implements AuthCache {
HashMap hashtable;
public AuthCacheImpl () {
hashtable = new HashMap ();
}
public void setMap (HashMap map) {
hashtable = map;
}
// put a value in map according to primary key + secondary key which
// is the path field of AuthenticationInfo
public synchronized void put (String pkey, AuthCacheValue value) {
LinkedList list = (LinkedList) hashtable.get (pkey);
String skey = value.getPath();
if (list == null) {
list = new LinkedList ();
hashtable.put (pkey, list);
}
// Check if the path already exists or a super-set of it exists
ListIterator iter = list.listIterator();
while (iter.hasNext()) {
AuthenticationInfo inf = (AuthenticationInfo)iter.next();
if (inf.path == null || inf.path.startsWith (skey)) {
iter.remove ();
}
}
iter.add (value);
}
// get a value from map checking both primary
// and secondary (urlpath) key
public synchronized AuthCacheValue get (String pkey, String skey) {
AuthenticationInfo result = null;
LinkedList list = (LinkedList) hashtable.get (pkey);
if (list == null || list.size() == 0) {
return null;
}
if (skey == null) {
// list should contain only one element
return (AuthenticationInfo)list.get (0);
}
ListIterator iter = list.listIterator();
while (iter.hasNext()) {
AuthenticationInfo inf = (AuthenticationInfo)iter.next();
if (skey.startsWith (inf.path)) {
return inf;
}
}
return null;
}
public synchronized void remove (String pkey, AuthCacheValue entry) {
LinkedList list = (LinkedList) hashtable.get (pkey);
if (list == null) {
return;
}
if (entry == null) {
list.clear();
return;
}
ListIterator iter = list.listIterator ();
while (iter.hasNext()) {
AuthenticationInfo inf = (AuthenticationInfo)iter.next();
if (entry.equals(inf)) {
iter.remove ();
}
}
}
}