Coverage Report - org.apache.myfaces.el.convert.PropertyResolverToELResolver
 
Classes in this File Line Coverage Branch Coverage Complexity
PropertyResolverToELResolver
0%
0/96
0%
0/42
5.75
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one
 3  
  * or more contributor license agreements.  See the NOTICE file
 4  
  * distributed with this work for additional information
 5  
  * regarding copyright ownership.  The ASF licenses this file
 6  
  * to you under the Apache License, Version 2.0 (the
 7  
  * "License"); you may not use this file except in compliance
 8  
  * with the License.  You may obtain a copy of the License at
 9  
  *
 10  
  *   http://www.apache.org/licenses/LICENSE-2.0
 11  
  *
 12  
  * Unless required by applicable law or agreed to in writing,
 13  
  * software distributed under the License is distributed on an
 14  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 15  
  * KIND, either express or implied.  See the License for the
 16  
  * specific language governing permissions and limitations
 17  
  * under the License.
 18  
  */
 19  
 package org.apache.myfaces.el.convert;
 20  
 
 21  
 import javax.el.ELContext;
 22  
 import javax.el.ELException;
 23  
 import javax.el.ELResolver;
 24  
 import javax.el.ExpressionFactory;
 25  
 import javax.el.PropertyNotFoundException;
 26  
 import javax.el.PropertyNotWritableException;
 27  
 import javax.faces.FactoryFinder;
 28  
 import javax.faces.application.ApplicationFactory;
 29  
 import javax.faces.context.FacesContext;
 30  
 import javax.faces.el.EvaluationException;
 31  
 import javax.faces.el.PropertyResolver;
 32  
 import java.beans.FeatureDescriptor;
 33  
 import java.util.Iterator;
 34  
 import java.util.List;
 35  
 import org.apache.myfaces.el.DefaultPropertyResolver;
 36  
 
 37  
 /**
 38  
  * Wrapper that converts a VariableResolver into an ELResolver. See JSF 1.2 spec section 5.6.1.6
 39  
  *
 40  
  * @author Stan Silvert (latest modification by $Author$)
 41  
  * @author Mathias Broekelmann
 42  
  * @version $Revision$ $Date$
 43  
  */
 44  
 @SuppressWarnings("deprecation")
 45  
 public final class PropertyResolverToELResolver extends ELResolver
 46  
 {
 47  
     private PropertyResolver propertyResolver;
 48  
 
 49  
     private ExpressionFactory expressionFactory;
 50  
     
 51  
     private boolean isDefaultLegacyPropertyResolver;
 52  
 
 53  
     /**
 54  
      * Creates a new instance of PropertyResolverToELResolver
 55  
      */
 56  
     public PropertyResolverToELResolver(final PropertyResolver propertyResolver)
 57  0
     {
 58  0
         this.propertyResolver = propertyResolver;
 59  0
         this.isDefaultLegacyPropertyResolver = (propertyResolver instanceof DefaultPropertyResolver);
 60  0
     }
 61  
 
 62  
     @Override
 63  
     public void setValue(final ELContext context, final Object base, final Object property, final Object value)
 64  
         throws NullPointerException, PropertyNotFoundException, PropertyNotWritableException, ELException
 65  
     {
 66  0
         if (isDefaultLegacyPropertyResolver)
 67  
         {
 68  0
             return;
 69  
         }
 70  0
         if (base == null || property == null)
 71  
         {
 72  0
             return;
 73  
         }
 74  
 
 75  
         try
 76  
         {
 77  0
             context.setPropertyResolved(true);
 78  0
             if (needsCoersion(base))
 79  
             {
 80  0
                 propertyResolver.setValue(base, coerceToInt(property), value);
 81  
             }
 82  
             else
 83  
             {
 84  0
                 propertyResolver.setValue(base, property, value);
 85  
             }
 86  
             // see: https://issues.apache.org/jira/browse/MYFACES-1670
 87  0
             context.setPropertyResolved(
 88  
                 FacesContext.getCurrentInstance().getELContext().isPropertyResolved());
 89  
 
 90  
         }
 91  0
         catch (javax.faces.el.PropertyNotFoundException e)
 92  
         {
 93  0
             context.setPropertyResolved(false);
 94  0
             throw new PropertyNotFoundException(e.getMessage(), e);
 95  
         }
 96  0
         catch (EvaluationException e)
 97  
         {
 98  0
             context.setPropertyResolved(false);
 99  0
             throw new ELException(e.getMessage(), e);
 100  
         }
 101  0
         catch (RuntimeException e)
 102  
         {
 103  0
             context.setPropertyResolved(false);
 104  0
             throw e;
 105  0
         }
 106  0
     }
 107  
 
 108  
     @Override
 109  
     public boolean isReadOnly(final ELContext context, final Object base, final Object property)
 110  
             throws NullPointerException, PropertyNotFoundException, ELException
 111  
     {
 112  0
         if (isDefaultLegacyPropertyResolver)
 113  
         {
 114  0
             return false;
 115  
         }
 116  0
         if (base == null || property == null)
 117  
         {
 118  0
             return true;
 119  
         }
 120  
 
 121  
         try
 122  
         {
 123  
             boolean result;
 124  0
             context.setPropertyResolved(true);
 125  0
             if (needsCoersion(base))
 126  
             {
 127  0
                 result = propertyResolver.isReadOnly(base, coerceToInt(property));
 128  
             }
 129  
             else
 130  
             {
 131  0
                 result = propertyResolver.isReadOnly(base, property);
 132  
             }
 133  
 
 134  
             // see: https://issues.apache.org/jira/browse/MYFACES-1670
 135  0
             context.setPropertyResolved(
 136  
                 FacesContext.getCurrentInstance().getELContext().isPropertyResolved());
 137  0
             return result;
 138  
         }
 139  0
         catch (javax.faces.el.PropertyNotFoundException e)
 140  
         {
 141  0
             context.setPropertyResolved(false);
 142  0
             throw new PropertyNotFoundException(e.getMessage(), e);
 143  
         }
 144  0
         catch (EvaluationException e)
 145  
         {
 146  0
             context.setPropertyResolved(false);
 147  0
             throw new ELException(e.getMessage(), e);
 148  
         }
 149  0
         catch (RuntimeException e)
 150  
         {
 151  0
             context.setPropertyResolved(false);
 152  0
             throw e;
 153  
         }
 154  
     }
 155  
 
 156  
     @Override
 157  
     public Object getValue(final ELContext context, final Object base, final Object property)
 158  
             throws NullPointerException, PropertyNotFoundException, ELException
 159  
     {
 160  0
         if (isDefaultLegacyPropertyResolver)
 161  
         {
 162  0
             return null;
 163  
         }        
 164  0
         if (base == null || property == null)
 165  
         {
 166  0
             return null;
 167  
         }
 168  
 
 169  
         try
 170  
         {
 171  0
             context.setPropertyResolved(true);
 172  
             Object value;
 173  0
             if (needsCoersion(base))
 174  
             {
 175  0
                 value = propertyResolver.getValue(base, coerceToInt(property));
 176  
             }
 177  
             else
 178  
             {
 179  0
                 value = propertyResolver.getValue(base, property);
 180  
             }
 181  
 
 182  
             // see: https://issues.apache.org/jira/browse/MYFACES-1670
 183  0
             context.setPropertyResolved(
 184  
                 FacesContext.getCurrentInstance().getELContext().isPropertyResolved());
 185  
 
 186  0
             return value;
 187  
         }
 188  0
         catch (javax.faces.el.PropertyNotFoundException e)
 189  
         {
 190  0
             context.setPropertyResolved(false);
 191  0
             throw new PropertyNotFoundException(e.getMessage(), e);
 192  
         }
 193  0
         catch (EvaluationException e)
 194  
         {
 195  0
             context.setPropertyResolved(false);
 196  0
             throw new ELException(e.getMessage(), e);
 197  
         }
 198  0
         catch (RuntimeException e)
 199  
         {
 200  0
             context.setPropertyResolved(false);
 201  0
             throw e;
 202  
         }
 203  
     }
 204  
 
 205  
     @Override
 206  
     public Class<?> getType(final ELContext context, final Object base, final Object property)
 207  
             throws NullPointerException, PropertyNotFoundException, ELException
 208  
     {
 209  0
         if (isDefaultLegacyPropertyResolver)
 210  
         {
 211  0
             return null;
 212  
         }
 213  0
         if (base == null || property == null)
 214  
         {
 215  0
             return null;
 216  
         }
 217  
 
 218  
         try
 219  
         {
 220  0
             context.setPropertyResolved(true);
 221  
             Class<?> value;
 222  0
             if (needsCoersion(base))
 223  
             {
 224  0
                 value = propertyResolver.getType(base, coerceToInt(property));
 225  
             }
 226  
             else
 227  
             {
 228  0
                 value = propertyResolver.getType(base, property);
 229  
             }
 230  
 
 231  
             // see: https://issues.apache.org/jira/browse/MYFACES-1670
 232  0
             context.setPropertyResolved(
 233  
                 FacesContext.getCurrentInstance().getELContext().isPropertyResolved());
 234  
 
 235  0
             return value;
 236  
         }
 237  0
         catch (javax.faces.el.PropertyNotFoundException e)
 238  
         {
 239  0
             context.setPropertyResolved(false);
 240  0
             throw new PropertyNotFoundException(e.getMessage(), e);
 241  
         }
 242  0
         catch (EvaluationException e)
 243  
         {
 244  0
             context.setPropertyResolved(false);
 245  0
             throw new ELException(e.getMessage(), e);
 246  
         }
 247  0
         catch (RuntimeException e)
 248  
         {
 249  0
             context.setPropertyResolved(false);
 250  0
             throw e;
 251  
         }
 252  
     }
 253  
 
 254  
     @Override
 255  
     public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base)
 256  
     {
 257  0
         return null;
 258  
     }
 259  
 
 260  
     @Override
 261  
     public Class<?> getCommonPropertyType(ELContext context, Object base)
 262  
     {
 263  0
         if (isDefaultLegacyPropertyResolver)
 264  
         {
 265  0
             return null;
 266  
         }
 267  0
         if (base == null)
 268  
         {
 269  0
             return null;
 270  
         }
 271  
 
 272  0
         return Object.class;
 273  
     }
 274  
 
 275  
     private static boolean needsCoersion(Object base)
 276  
     {
 277  0
         return (base instanceof List) || base.getClass().isArray();
 278  
     }
 279  
 
 280  
     protected ExpressionFactory getExpressionFactory()
 281  
     {
 282  0
         if (expressionFactory == null)
 283  
         {
 284  0
             ApplicationFactory appFactory = (ApplicationFactory) FactoryFinder
 285  
                 .getFactory(FactoryFinder.APPLICATION_FACTORY);
 286  0
             expressionFactory = appFactory.getApplication().getExpressionFactory();
 287  
         }
 288  0
         return expressionFactory;
 289  
     }
 290  
 
 291  
     public void setExpressionFactory(ExpressionFactory expressionFactory)
 292  
     {
 293  0
         this.expressionFactory = expressionFactory;
 294  0
     }
 295  
 
 296  
     private int coerceToInt(Object property)
 297  
     {
 298  0
         return (Integer) getExpressionFactory().coerceToType(property, Integer.class);
 299  
     }
 300  
 
 301  
 
 302  
     public PropertyResolver getPropertyResolver()
 303  
     {
 304  0
         return propertyResolver;
 305  
     }
 306  
 }