001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *   http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    package org.apache.myfaces.tobago.el;
021    
022    import org.apache.commons.logging.Log;
023    import org.apache.commons.logging.LogFactory;
024    
025    import javax.faces.context.FacesContext;
026    import javax.faces.el.EvaluationException;
027    import javax.faces.el.VariableResolver;
028    
029    /**
030     * @deprecated use UserWrapper as managed bean in request scope instead.
031     */
032    @Deprecated
033    public class UserVariableResolverImpl extends VariableResolver {
034    
035      private static final Log LOG = LogFactory.getLog(UserVariableResolverImpl.class);
036    
037      private VariableResolver base;
038      private UserWrapper userWrapper;
039    
040      public UserVariableResolverImpl(VariableResolver base) {
041        if (LOG.isInfoEnabled()) {
042          LOG.info("Hiding ri base implemation: " + base);
043        }
044        this.base = base;
045      }
046    
047      public Object resolveVariable(FacesContext facesContext, String name)
048          throws EvaluationException {
049    
050        if ("user".equals(name)) {
051          // TODO: optimize me: put it in request?
052          if (LOG.isDebugEnabled()) {
053            LOG.debug("resolving: " + name);
054          }
055          if (userWrapper == null) {
056            userWrapper = new UserWrapper();
057          }
058          return userWrapper;
059        } else {
060          return base.resolveVariable(facesContext, name);
061        }
062      }
063    }