/*
* Copyright (c) 2005-2011 Vincent Vandenschrick. All rights reserved.
*
* This file is part of the Jspresso framework.
*
* Jspresso is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Jspresso 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Jspresso. If not, see <http://www.gnu.org/licenses/>.
*/
package org.jspresso.framework.util.http;
import javax.servlet.http.Cookie;
import org.jspresso.framework.util.preferences.IPreferencesStore;
/**
* An implementation of preference store relying on browser cookies.
*
* @version $LastChangedRevision$
* @author Vincent Vandenschrick
*/
public class CookiePreferencesStore implements IPreferencesStore {
private String storePath;
/**
* Constructs a new <code>CookiePreferencesStore</code> instance.
*/
public CookiePreferencesStore() {
this.storePath = "";
}
/**
* Sets the path of this store.
*
* @param storePath
* the preferences store path.
*/
@Override
public void setStorePath(String[] storePath) {
if (storePath != null && storePath.length > 0) {
StringBuffer buff = new StringBuffer();
for (int i = 0; i < storePath.length; i++) {
buff.append(storePath[i]).append('.');
}
this.storePath = buff.toString();
} else {
this.storePath = "";
}
}
/**
* {@inheritDoc}
*/
@Override
public String getPreference(String key) {
String completeKey = storePath + key;
if (HttpRequestHolder.getServletRequest() != null) {
Cookie[] cookies = HttpRequestHolder.getServletRequest().getCookies();
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
if (completeKey.equals(cookies[i].getName())) {
return cookies[i].getValue();
}
}
}
}
return null;
}
/**
* {@inheritDoc}
*/
@Override
public void putPreference(String key, String value) {
String completeKey = storePath + key;
if (HttpRequestHolder.getServletResponse() != null) {
Cookie cookie = new Cookie(completeKey, value);
cookie.setMaxAge(Integer.MAX_VALUE);
HttpRequestHolder.getServletResponse().addCookie(cookie);
}
}
/**
* Deletes the cookie storing the preference.
* <p>
* {@inheritDoc}
*/
@Override
public void removePreference(String key) {
String completeKey = storePath + key;
if (HttpRequestHolder.getServletResponse() != null) {
Cookie cookie = new Cookie(completeKey, "");
cookie.setMaxAge(0);
HttpRequestHolder.getServletResponse().addCookie(cookie);
}
}
}