com.sun.faces.mock.MockVariableResolver Maven / Gradle / Ivy
/*
* $Id: MockVariableResolver.java,v 1.1 2005/10/18 17:48:06 edburns Exp $
*/
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the License at
* https://javaserverfaces.dev.java.net/CDDL.html or
* legal/CDDLv1.0.txt.
* See the License for the specific language governing
* permission and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at legal/CDDLv1.0.txt.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* [Name of File] [ver.__] [Date]
*
* Copyright 2005 Sun Microsystems Inc. All Rights Reserved
*/
package com.sun.faces.mock;
import java.util.Map;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.el.VariableResolver;
/**
* Mock implementation of {@link VariableResolver} that supports a limited
* subset of expression evaluation functionality:
*
* - Recognizes
applicationScope, requestScope,
* and sessionScope implicit names.
* - Searches in ascending scopes for non-reserved names.
*
*/
public class MockVariableResolver extends VariableResolver {
// ------------------------------------------------------------ Constructors
// ------------------------------------------------ VariableResolver Methods
public Object resolveVariable(FacesContext context, String name) {
if ((context == null) || (name == null)) {
throw new NullPointerException();
}
// Handle predefined variables
if ("applicationScope".equals(name)) {
return (econtext().getApplicationMap());
} else if ("requestScope".equals(name)) {
return (econtext().getRequestMap());
} else if ("sessionScope".equals(name)) {
return (econtext().getSessionMap());
}
// Look up in ascending scopes
Map map = null;
map = econtext().getRequestMap();
if (map.containsKey(name)) {
return (map.get(name));
}
map = econtext().getSessionMap();
if ((map != null) && (map.containsKey(name))) {
return (map.get(name));
}
map = econtext().getApplicationMap();
if (map.containsKey(name)) {
return (map.get(name));
}
// Requested object is not found
return (null);
}
// --------------------------------------------------------- Private Methods
private ExternalContext econtext() {
return (FacesContext.getCurrentInstance().getExternalContext());
}
}