Clover coverage report - Code Coverage for tapestry release 4.0-beta-1
Coverage timestamp: Fri Jun 24 2005 14:32:46 EDT
file stats: LOC: 87   Methods: 3
NCLOC: 49   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
InjectObjectWorker.java 100% 100% 100% 100%
coverage
 1    // Copyright 2004, 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 java.lang.reflect.Modifier;
 18   
 19    import org.apache.hivemind.ApplicationRuntimeException;
 20    import org.apache.hivemind.Location;
 21    import org.apache.hivemind.service.MethodSignature;
 22    import org.apache.hivemind.util.Defense;
 23    import org.apache.tapestry.services.InjectedValueProvider;
 24    import org.apache.tapestry.spec.InjectSpecification;
 25   
 26    /**
 27    * Implementation for injection type "object" (the default). Adds read-only properties to the
 28    * enhanced class that contain objects injected from HiveMind.
 29    *
 30    * @author Howard M. Lewis Ship
 31    * @since 4.0
 32    */
 33    public class InjectObjectWorker implements InjectEnhancementWorker
 34    {
 35    private InjectedValueProvider _provider;
 36   
 37  339 public void performEnhancement(EnhancementOperation op, InjectSpecification is)
 38    {
 39  339 String name = is.getProperty();
 40  339 String objectReference = is.getObject();
 41  339 Location location = is.getLocation();
 42   
 43  339 injectObject(op, objectReference, name, location);
 44    }
 45   
 46  339 public void injectObject(EnhancementOperation op, String objectReference, String propertyName,
 47    Location location)
 48    {
 49  339 Defense.notNull(op, "op");
 50  339 Defense.notNull(propertyName, "propertyName");
 51  339 Defense.notNull(objectReference, "objectReference");
 52   
 53  339 Class propertyType = op.getPropertyType(propertyName);
 54  339 if (propertyType == null)
 55  58 propertyType = Object.class;
 56   
 57  339 String fieldName = "_$" + propertyName;
 58   
 59  339 op.claimProperty(propertyName);
 60   
 61  339 Object injectedValue = _provider.obtainValue(objectReference, location);
 62   
 63  339 if (injectedValue == null)
 64  1 throw new ApplicationRuntimeException(EnhanceMessages
 65    .locatedValueIsNull(objectReference), location, null);
 66   
 67  338 if (!propertyType.isAssignableFrom(injectedValue.getClass()))
 68  1 throw new ApplicationRuntimeException(EnhanceMessages.incompatibleInjectType(
 69    objectReference,
 70    injectedValue,
 71    propertyType), location, null);
 72   
 73  337 op.addInjectedField(fieldName, propertyType, injectedValue);
 74   
 75  337 String methodName = EnhanceUtils.createAccessorMethodName(propertyName);
 76   
 77  337 op.addMethod(
 78    Modifier.PUBLIC,
 79    new MethodSignature(propertyType, methodName, null, null),
 80    "return " + fieldName + ";");
 81    }
 82   
 83  42 public void setProvider(InjectedValueProvider provider)
 84    {
 85  42 _provider = provider;
 86    }
 87    }