Clover coverage report - Code Coverage for tapestry release 4.0-beta-2
Coverage timestamp: Sat Jul 9 2005 22:02:17 EDT
file stats: LOC: 92   Methods: 3
NCLOC: 51   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
InjectComponentWorker.java 100% 100% 100% 100%
coverage
 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 java.util.Iterator;
 18   
 19    import org.apache.hivemind.ErrorLog;
 20    import org.apache.hivemind.service.ClassFabUtils;
 21    import org.apache.hivemind.util.Defense;
 22    import org.apache.tapestry.IComponent;
 23    import org.apache.tapestry.spec.IComponentSpecification;
 24    import org.apache.tapestry.spec.IContainedComponent;
 25   
 26    /**
 27    * Injects components for which the property attribute of the <component> element was
 28    * specified. This makes it easier to reference a particular component from Java code.
 29    *
 30    * @author Howard M. Lewis Ship
 31    * @since 4.0
 32    */
 33    public class InjectComponentWorker implements EnhancementWorker
 34    {
 35    private ErrorLog _errorLog;
 36   
 37  421 public void performEnhancement(EnhancementOperation op, IComponentSpecification spec)
 38    {
 39  421 Iterator i = spec.getComponentIds().iterator();
 40   
 41  421 while (i.hasNext())
 42    {
 43  259 String id = (String) i.next();
 44   
 45  259 IContainedComponent cc = spec.getComponent(id);
 46   
 47  259 String propertyName = cc.getPropertyName();
 48   
 49  259 if (propertyName != null)
 50    {
 51  2 try
 52    {
 53  2 injectComponent(op, id, propertyName);
 54    }
 55    catch (Exception ex)
 56    {
 57  1 _errorLog.error(EnhanceMessages.errorAddingProperty(propertyName, op
 58    .getBaseClass(), ex), cc.getLocation(), ex);
 59    }
 60    }
 61    }
 62    }
 63   
 64  2 public void injectComponent(EnhancementOperation op, String componentId, String propertyName)
 65    {
 66  2 Defense.notNull(op, "op");
 67  2 Defense.notNull(componentId, "componentId");
 68  2 Defense.notNull(propertyName, "propertyName");
 69   
 70  2 Class propertyType = EnhanceUtils.extractPropertyType(op, propertyName, null);
 71   
 72  2 op.claimProperty(propertyName);
 73   
 74  1 String fieldName = "_$" + propertyName;
 75   
 76  1 op.addField(fieldName, propertyType);
 77   
 78  1 EnhanceUtils.createSimpleAccessor(op, fieldName, propertyName, propertyType);
 79   
 80    // I.e. _$fred = (IComponent) getComponent("fred");
 81   
 82  1 String code = fieldName + " = (" + ClassFabUtils.getJavaClassName(propertyType)
 83    + ") getComponent(\"" + componentId + "\");";
 84   
 85  1 op.extendMethodImplementation(IComponent.class, EnhanceUtils.FINISH_LOAD_SIGNATURE, code);
 86    }
 87   
 88  42 public void setErrorLog(ErrorLog errorLog)
 89    {
 90  42 _errorLog = errorLog;
 91    }
 92    }