001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.geronimo.clustering.wadi;
018
019 import java.util.Collection;
020 import java.util.Map;
021 import java.util.Set;
022
023 import org.apache.geronimo.clustering.Session;
024 import org.codehaus.wadi.web.WebSession;
025
026 /**
027 *
028 * @version $Rev$ $Date$
029 */
030 public class WADISessionAdaptor implements Session {
031 private final WebSession session;
032 private final Map state;
033
034 public WADISessionAdaptor(WebSession session) {
035 this.session = session;
036
037 state = new StateMap();
038 }
039
040 public String getSessionId() {
041 return session.getId();
042 }
043
044 public void release() {
045 try {
046 session.destroy();
047 } catch (Exception e) {
048 throw new IllegalStateException("Cannot release session " + session);
049 }
050 }
051
052 public Object addState(String key, Object value) {
053 return session.setAttribute(key, value);
054 }
055
056 public Object getState(String key) {
057 return session.getAttribute(key);
058 }
059
060 public Object removeState(String key) {
061 return session.removeAttribute(key);
062 }
063
064 public Map getState() {
065 return state;
066 }
067
068 private class StateMap implements Map {
069
070 public Object put(Object key, Object value) {
071 String wadiKey = ensureTypeAndCast(key);
072 return addState(wadiKey, value);
073 }
074
075 public Object remove(Object key) {
076 String wadiKey = ensureTypeAndCast(key);
077 return removeState(wadiKey);
078 }
079
080 public void clear() {
081 throw new UnsupportedOperationException();
082 }
083
084 public boolean containsKey(Object key) {
085 throw new UnsupportedOperationException();
086 }
087
088 public boolean containsValue(Object value) {
089 throw new UnsupportedOperationException();
090 }
091
092 public Set entrySet() {
093 throw new UnsupportedOperationException();
094 }
095
096 public Object get(Object key) {
097 String wadiKey = ensureTypeAndCast(key);
098 return getState(wadiKey);
099 }
100
101 public boolean isEmpty() {
102 throw new UnsupportedOperationException();
103 }
104
105 public Set keySet() {
106 return session.getAttributeNameSet();
107 }
108
109 public void putAll(Map t) {
110 throw new UnsupportedOperationException();
111 }
112
113 public int size() {
114 return session.getAttributeNameSet().size();
115 }
116
117 public Collection values() {
118 throw new UnsupportedOperationException();
119 }
120
121 private String ensureTypeAndCast(Object key) {
122 if (!(key instanceof String)) {
123 throw new ClassCastException(String.class + " is expected.");
124 }
125 return (String) key;
126 }
127 }
128 }