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: 90   Methods: 4
NCLOC: 53   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
InjectMessagesWorker.java - 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.lang.reflect.Modifier;
 18   
 19    import org.apache.hivemind.ErrorLog;
 20    import org.apache.hivemind.Messages;
 21    import org.apache.hivemind.service.BodyBuilder;
 22    import org.apache.hivemind.service.MethodSignature;
 23    import org.apache.hivemind.util.Defense;
 24    import org.apache.tapestry.services.ComponentMessagesSource;
 25    import org.apache.tapestry.spec.IComponentSpecification;
 26   
 27    /**
 28    * Injects the read-only {@link org.apache.tapestry.IComponent#getMessages() messages}property into
 29    * all components.
 30    *
 31    * @author Howard M. Lewis Ship
 32    * @since 4.0
 33    */
 34    public class InjectMessagesWorker implements EnhancementWorker
 35    {
 36    final String MESSAGES_PROPERTY = "messages";
 37   
 38    private ErrorLog _errorLog;
 39   
 40    private ComponentMessagesSource _componentMessagesSource;
 41   
 42    final MethodSignature METHOD_SIGNATURE = new MethodSignature(Messages.class, "getMessages",
 43    null, null);
 44   
 45  436 public void performEnhancement(EnhancementOperation op, IComponentSpecification spec)
 46    {
 47  436 try
 48    {
 49  436 injectMessages(op);
 50    }
 51    catch (Exception ex)
 52    {
 53  1 _errorLog.error(EnhanceMessages.errorAddingProperty(MESSAGES_PROPERTY, op
 54    .getBaseClass(), ex), null, ex);
 55    }
 56    }
 57   
 58  436 public void injectMessages(EnhancementOperation op)
 59    {
 60  436 Defense.notNull(op, "op");
 61   
 62  436 op.claimProperty(MESSAGES_PROPERTY);
 63   
 64  435 String sourceField = op.addInjectedField(
 65    "_$componentMessagesSource",
 66    ComponentMessagesSource.class,
 67    _componentMessagesSource);
 68   
 69  435 op.addField("_$messages", Messages.class);
 70   
 71  435 BodyBuilder builder = new BodyBuilder();
 72  435 builder.begin();
 73  435 builder.addln("if (_$messages == null)");
 74  435 builder.addln(" _$messages = {0}.getMessages(this);", sourceField);
 75  435 builder.addln("return _$messages;");
 76  435 builder.end();
 77   
 78  435 op.addMethod(Modifier.PUBLIC, METHOD_SIGNATURE, builder.toString());
 79    }
 80   
 81  58 public void setComponentMessagesSource(ComponentMessagesSource componentMessagesSource)
 82    {
 83  58 _componentMessagesSource = componentMessagesSource;
 84    }
 85   
 86  42 public void setErrorLog(ErrorLog errorLog)
 87    {
 88  42 _errorLog = errorLog;
 89    }
 90    }