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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package sun.net.www.protocol.http;

import java.util.LinkedList;
import java.util.ListIterator;
import java.util.HashMap;

Author:Michael McMahon
/** * @author Michael McMahon */
public class AuthCacheImpl implements AuthCache { HashMap<String,LinkedList<AuthCacheValue>> hashtable; public AuthCacheImpl () { hashtable = new HashMap<String,LinkedList<AuthCacheValue>>(); } public void setMap (HashMap<String,LinkedList<AuthCacheValue>> 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<AuthCacheValue> list = hashtable.get (pkey); String skey = value.getPath(); if (list == null) { list = new LinkedList<AuthCacheValue>(); hashtable.put(pkey, list); } // Check if the path already exists or a super-set of it exists ListIterator<AuthCacheValue> 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<AuthCacheValue> list = 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<AuthCacheValue> 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<AuthCacheValue> list = hashtable.get (pkey); if (list == null) { return; } if (entry == null) { list.clear(); return; } ListIterator<AuthCacheValue> iter = list.listIterator (); while (iter.hasNext()) { AuthenticationInfo inf = (AuthenticationInfo)iter.next(); if (entry.equals(inf)) { iter.remove (); } } } }