Coverage Report - org.apache.tapestry.enhance.InjectPageWorker
 
Classes in this File Line Coverage Branch Coverage Complexity
InjectPageWorker
0%
0/17
0%
0/10
3
 
 1  
 // Copyright 2005 The Apache Software Foundation
 2  
 //
 3  
 // Licensed under the Apache License, Version 2.0 (the "License");
 4  
 // you may not use this file except in compliance with the License.
 5  
 // You may obtain a copy of the License at
 6  
 //
 7  
 //     http://www.apache.org/licenses/LICENSE-2.0
 8  
 //
 9  
 // Unless required by applicable law or agreed to in writing, software
 10  
 // distributed under the License is distributed on an "AS IS" BASIS,
 11  
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12  
 // See the License for the specific language governing permissions and
 13  
 // limitations under the License.
 14  
 
 15  
 package org.apache.tapestry.enhance;
 16  
 
 17  
 import org.apache.hivemind.ApplicationRuntimeException;
 18  
 import org.apache.hivemind.Location;
 19  
 import org.apache.hivemind.service.BodyBuilder;
 20  
 import org.apache.hivemind.service.MethodSignature;
 21  
 import org.apache.tapestry.IPage;
 22  
 import org.apache.tapestry.spec.InjectSpecification;
 23  
 
 24  
 import java.lang.reflect.Modifier;
 25  
 
 26  
 /**
 27  
  * Injects code to access a named page within the application.
 28  
  * 
 29  
  * @author Howard Lewis Ship
 30  
  * @since 4.0
 31  
  */
 32  0
 public class InjectPageWorker implements InjectEnhancementWorker
 33  
 {
 34  
     public void performEnhancement(EnhancementOperation op, InjectSpecification spec)
 35  
     {
 36  0
         performEnhancement(op, spec.getObject(), spec.getProperty(), spec.getLocation());
 37  0
     }
 38  
 
 39  
     public void performEnhancement(EnhancementOperation op, String pageName, String propertyName,
 40  
             Location location)
 41  
     {
 42  0
         Class propertyType = op.getPropertyType(propertyName);
 43  
 
 44  0
         if (propertyType == null)
 45  0
             propertyType = Object.class;
 46  0
         else if (propertyType.isPrimitive())
 47  0
             throw new ApplicationRuntimeException(EnhanceMessages.wrongTypeForPageInjection(
 48  
                     propertyName,
 49  
                     propertyType), null, location, null);
 50  
 
 51  0
         op.claimReadonlyProperty(propertyName);
 52  
 
 53  0
         MethodSignature sig = new MethodSignature(propertyType, op
 54  
                 .getAccessorMethodName(propertyName), null, null);
 55  
 
 56  0
         BodyBuilder builder = new BodyBuilder();
 57  
 
 58  0
         builder.add("return ");
 59  
 
 60  
         // If the property type is not IPage or a superclass of IPage then a cast
 61  
         // is needed.
 62  
 
 63  0
         if (!propertyType.isAssignableFrom(IPage.class))
 64  0
             builder.add("({0})", propertyType.getName());
 65  
 
 66  0
         builder.add("getPage().getRequestCycle().getPage(\"{0}\");", pageName);
 67  
 
 68  0
         op.addMethod(Modifier.PUBLIC, sig, builder.toString(), location);
 69  0
     }
 70  
 }