/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.formio.portlet.common;
import javax.portlet.PortletSession;
import net.formio.data.SessionStorage;
/**
* Implementation of {@link SessionStorage} using Portlet session.
* @author Radek Beran
*/
public class PortletSessionStorage implements SessionStorage {
private final PortletSession session;
private final int scope;
public PortletSessionStorage(PortletSession session, int scope) {
if (session == null) throw new IllegalArgumentException("session cannot be null");
this.session = session;
this.scope = scope;
}
public PortletSessionStorage(PortletSession session) {
this(session, PortletSession.PORTLET_SCOPE);
}
@Override
public String set(String key, String value) {
session.setAttribute(key, value, scope);
return value;
}
@Override
public String get(String key) {
return (String)session.getAttribute(key, scope);
}
@Override
public boolean delete(String key) {
String value = get(key);
session.removeAttribute(key, scope);
return value != null;
}
}