| package org.apache.turbine.services.pull.util; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache Turbine" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache Turbine", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| import java.util.Map; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| |
| import org.apache.turbine.services.pull.ApplicationTool; |
| |
| /** |
| * Pull tool designed to be used in the session scope for storage of |
| * temporary data. This tool should eliminate the need for the |
| * {@link org.apache.turbine.om.security.User#setTemp} and |
| * {@link org.apache.turbine.om.security.User#getTemp} methods. |
| * |
| * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a> |
| * @version $Id$ |
| */ |
| public class SessionData implements ApplicationTool |
| { |
| /** Storage of user defined data */ |
| private Map dataStorage; |
| |
| /** |
| * Initialize the application tool. |
| * |
| * @param data initialization data |
| */ |
| public void init(Object data) |
| { |
| dataStorage = new HashMap(); |
| } |
| |
| /** |
| * Refresh the application tool. |
| */ |
| public void refresh() |
| { |
| // do nothing |
| } |
| |
| /** |
| * Gets the data stored under the key. Null will be returned if the |
| * key does not exist or if null was stored under the key. |
| * <p> |
| * To check for a key with a null value use {@link #containsKey}. |
| * |
| * @param key key under which the data is stored. |
| * @return <code>Object</code> stored under the key. |
| */ |
| public Object get(String key) |
| { |
| return dataStorage.get(key); |
| } |
| |
| /** |
| * Determines is a given key is stored. |
| * |
| * @param key the key to check for |
| * @return true if the key was found |
| */ |
| public boolean containsKey(String key) |
| { |
| return dataStorage.containsKey(key); |
| } |
| |
| /** |
| * Stores the data. If the key already exists, the value will be |
| * overwritten. |
| * |
| * @param key key under which the data will be stored. |
| * @param value data to store under the key. Null values are allowed. |
| */ |
| public void put(String key, Object value) |
| { |
| dataStorage.put(key, value); |
| } |
| |
| /** |
| * Clears all data |
| */ |
| public void clear() |
| { |
| dataStorage.clear(); |
| } |
| |
| /** |
| * Gets a iterator for the keys. |
| * |
| * @return <code>Iterator</code> for the keys |
| */ |
| public Iterator iterator() |
| { |
| return dataStorage.keySet().iterator(); |
| } |
| } |