001/* 002 * (C) Copyright 2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 */ 019package org.nuxeo.connect.client.ui; 020 021import java.io.Serializable; 022import java.util.HashMap; 023import java.util.Map; 024 025import javax.faces.context.FacesContext; 026import javax.servlet.http.HttpServletRequest; 027import javax.servlet.http.HttpSession; 028 029import org.nuxeo.ecm.webengine.jaxrs.context.RequestContext; 030 031/** 032 * Provide contextual access to the {@link ListingFilterSetting} for each listing. Use HttpSession to store a map of 033 * {@link ListingFilterSetting} This class is used to share state between the WebEngine and the JSF parts 034 * 035 * @author Tiry (tdelprat@nuxeo.com) 036 */ 037public class SharedPackageListingsSettings implements Serializable { 038 039 private static final long serialVersionUID = 1L; 040 041 protected Map<String, ListingFilterSetting> settings = new HashMap<String, ListingFilterSetting>(); 042 043 public static final String SESSION_KEY = "org.nuxeo.connect.client.ui.PackageListingSettings"; 044 045 public ListingFilterSetting get(String listName) { 046 if (!settings.containsKey(listName)) { 047 settings.put(listName, new ListingFilterSetting()); 048 } 049 return settings.get(listName); 050 } 051 052 public static SharedPackageListingsSettings instance() { 053 054 HttpServletRequest request = null; 055 if (FacesContext.getCurrentInstance() != null) { 056 request = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest(); 057 } else if (RequestContext.getActiveContext() != null) { 058 request = RequestContext.getActiveContext().getRequest(); 059 } 060 061 if (request != null) { 062 return instance(request); 063 } 064 return null; 065 } 066 067 public static SharedPackageListingsSettings instance(HttpServletRequest request) { 068 return instance(request.getSession(true)); 069 } 070 071 public static SharedPackageListingsSettings instance(HttpSession session) { 072 Object val = session.getAttribute(SESSION_KEY); 073 if (val == null || !(val instanceof SharedPackageListingsSettings)) { 074 val = new SharedPackageListingsSettings(); 075 session.setAttribute(SESSION_KEY, val); 076 } 077 return (SharedPackageListingsSettings) val; 078 } 079 080}