001/* 002 * (C) Copyright 2010 Nuxeo SA (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Anahide Tchertchian 016 */ 017package org.nuxeo.ecm.platform.ui.web.jsf; 018 019import java.util.HashMap; 020import java.util.Iterator; 021import java.util.Map; 022 023import javax.el.ELContext; 024import javax.el.ELException; 025import javax.el.ExpressionFactory; 026import javax.faces.application.Application; 027import javax.faces.application.FacesMessage; 028import javax.faces.application.FacesMessage.Severity; 029import javax.faces.component.UIViewRoot; 030import javax.faces.context.ExternalContext; 031import javax.faces.context.FacesContext; 032import javax.faces.context.ResponseStream; 033import javax.faces.context.ResponseWriter; 034import javax.faces.render.RenderKit; 035 036import org.nuxeo.ecm.platform.el.ExpressionContext; 037 038/** 039 * Mock faces context that can be used to resolve expressions in tests. 040 * <p> 041 * Usage: 042 * 043 * <pre> 044 * MockFacesContext facesContext = new MockFacesContext() { 045 * public Object evaluateExpressionGet(FacesContext context, String expression, Class expectedType) throws ELException { 046 * if ("#{myTestExpression}".equals(expression)) { 047 * return myTestResult; 048 * } 049 * return null; 050 * } 051 * }; 052 * facesContext.setCurrent(); 053 * assertNotNull(FacesContext.getCurrentInstance()); 054 * </pre> 055 * 056 * @author Anahide Tchertchian 057 */ 058public class MockFacesContext extends FacesContext { 059 060 protected Application app = new MockApplication(); 061 062 protected Map<String, Object> variables = new HashMap<String, Object>(); 063 064 protected Map<String, Object> expressions = new HashMap<String, Object>(); 065 066 public void mapVariable(String key, Object value) { 067 variables.put(key, value); 068 } 069 070 public void resetVariables() { 071 variables.clear(); 072 } 073 074 public void mapExpression(String expr, Object res) { 075 expressions.put(expr, res); 076 } 077 078 public void resetExpressions() { 079 expressions.clear(); 080 } 081 082 public void setCurrent() { 083 setCurrentInstance(this); 084 } 085 086 public void relieveCurrent() { 087 setCurrentInstance(null); 088 } 089 090 @Override 091 public Application getApplication() { 092 return app; 093 } 094 095 @Override 096 public ELContext getELContext() { 097 ELContext ctx = new ExpressionContext(); 098 ExpressionFactory ef = getApplication().getExpressionFactory(); 099 for (Map.Entry<String, Object> var : variables.entrySet()) { 100 ctx.getVariableMapper().setVariable(var.getKey(), ef.createValueExpression(var.getValue(), Object.class)); 101 } 102 return ctx; 103 } 104 105 protected Object evaluateExpression(FacesContext context, String expression) { 106 if (expressions.containsKey(expression)) { 107 return expressions.get(expression); 108 } else { 109 ExpressionFactory ef = context.getApplication().getExpressionFactory(); 110 ELContext elCtx = getELContext(); 111 return ef.createValueExpression(elCtx, expression, Object.class).getValue(elCtx); 112 } 113 } 114 115 @Deprecated 116 @SuppressWarnings("rawtypes") 117 public Object evaluateExpressionGet(FacesContext context, String expression, Class expectedType) throws ELException { 118 return evaluateExpression(context, expression); 119 } 120 121 @Override 122 public void addMessage(String clientId, FacesMessage message) { 123 } 124 125 @Override 126 public Iterator<String> getClientIdsWithMessages() { 127 return null; 128 } 129 130 @Override 131 public ExternalContext getExternalContext() { 132 return null; 133 } 134 135 @Override 136 public Severity getMaximumSeverity() { 137 return null; 138 } 139 140 @Override 141 public Iterator<FacesMessage> getMessages() { 142 return null; 143 } 144 145 @Override 146 public Iterator<FacesMessage> getMessages(String clientId) { 147 return null; 148 } 149 150 @Override 151 public RenderKit getRenderKit() { 152 return null; 153 } 154 155 @Override 156 public boolean getRenderResponse() { 157 return false; 158 } 159 160 @Override 161 public boolean getResponseComplete() { 162 return false; 163 } 164 165 @Override 166 public ResponseStream getResponseStream() { 167 return null; 168 } 169 170 @Override 171 public ResponseWriter getResponseWriter() { 172 return null; 173 } 174 175 @Override 176 public UIViewRoot getViewRoot() { 177 return null; 178 } 179 180 @Override 181 public void release() { 182 } 183 184 @Override 185 public void renderResponse() { 186 } 187 188 @Override 189 public void responseComplete() { 190 } 191 192 @Override 193 public void setResponseStream(ResponseStream responseStream) { 194 } 195 196 @Override 197 public void setResponseWriter(ResponseWriter responseWriter) { 198 } 199 200 @Override 201 public void setViewRoot(UIViewRoot root) { 202 } 203 204}