| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| WebApplicationContextVariableResolver |
|
| 2.0;2 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
| 3 | * contributor license agreements. See the NOTICE file distributed with | |
| 4 | * this work for additional information regarding copyright ownership. | |
| 5 | * The ASF licenses this file to you under the Apache License, Version 2.0 | |
| 6 | * (the "License"); you may not use this file except in compliance with | |
| 7 | * the License. You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, software | |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 | * See the License for the specific language governing permissions and | |
| 15 | * limitations under the License. | |
| 16 | */ | |
| 17 | ||
| 18 | package org.apache.shale.spring; | |
| 19 | ||
| 20 | import javax.faces.context.FacesContext; | |
| 21 | import javax.faces.el.EvaluationException; | |
| 22 | import javax.faces.el.VariableResolver; | |
| 23 | ||
| 24 | import org.springframework.web.jsf.FacesContextUtils; | |
| 25 | ||
| 26 | /** | |
| 27 | * <p>Extended <code>VariableResolver</code> that exposes the Spring | |
| 28 | * <code>WebApplicationContext</code> instance under a variable named | |
| 29 | * with the specified manifest constant.</p> | |
| 30 | * | |
| 31 | * $Id: WebApplicationContextVariableResolver.java 464373 2006-10-16 04:21:54Z rahul $ | |
| 32 | */ | |
| 33 | public class WebApplicationContextVariableResolver extends VariableResolver { | |
| 34 | ||
| 35 | ||
| 36 | // ------------------------------------------------------------- Constructor | |
| 37 | ||
| 38 | ||
| 39 | /** | |
| 40 | * <p>Construct a new {@link WebApplicationContextVariableResolver} | |
| 41 | * instance.</p> | |
| 42 | * | |
| 43 | * @param original Original resolver to delegate to. | |
| 44 | */ | |
| 45 | 0 | public WebApplicationContextVariableResolver(VariableResolver original) { |
| 46 | ||
| 47 | 0 | this.original = original; |
| 48 | ||
| 49 | 0 | } |
| 50 | ||
| 51 | ||
| 52 | // ------------------------------------------------------ Instance Variables | |
| 53 | ||
| 54 | ||
| 55 | /** | |
| 56 | * <p>The original <code>VariableResolver</code> passed to our constructor.</p> | |
| 57 | */ | |
| 58 | 0 | private VariableResolver original = null; |
| 59 | ||
| 60 | ||
| 61 | // ------------------------------------------------------ Manifest Constants | |
| 62 | ||
| 63 | ||
| 64 | /** | |
| 65 | * <p>Variable name to be resoved to our web application context.</p> | |
| 66 | */ | |
| 67 | private static final String WEB_APPLICATION_CONTEXT_VARIABLE_NAME = | |
| 68 | "webApplicationContext"; | |
| 69 | ||
| 70 | ||
| 71 | ||
| 72 | ||
| 73 | // ------------------------------------------------ VariableResolver Methods | |
| 74 | ||
| 75 | ||
| 76 | /** | |
| 77 | * <p>Resolve variable names known to this resolver; otherwise, delegate to | |
| 78 | * the original resolver passed to our constructor.</p> | |
| 79 | * | |
| 80 | * @param context FacesContext for the current request | |
| 81 | * @param name Variable name to be resolved | |
| 82 | * | |
| 83 | * @exception EvaluationException if an evaluation error occurs | |
| 84 | */ | |
| 85 | public Object resolveVariable(FacesContext context, String name) | |
| 86 | throws EvaluationException { | |
| 87 | ||
| 88 | 0 | if (WEB_APPLICATION_CONTEXT_VARIABLE_NAME.equals(name)) { |
| 89 | 0 | return FacesContextUtils.getWebApplicationContext(context); |
| 90 | } else { | |
| 91 | 0 | return original.resolveVariable(context, name); |
| 92 | } | |
| 93 | ||
| 94 | } | |
| 95 | ||
| 96 | ||
| 97 | } |