Code Coverage for tapestry release 4.0.3

Clover coverage report - Code Coverage for tapestry release 4.0.3

Coverage timestamp: Fri May 5 2006 21:17:42 CDT

FRAMES NO FRAMES

file stats:	LOC:	93		Methods:	4
	NCLOC:	55		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

InjectMessagesWorker.java

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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.Location;
21		import org.apache.hivemind.Messages;
22		import org.apache.hivemind.service.BodyBuilder;
23		import org.apache.hivemind.service.MethodSignature;
24		import org.apache.hivemind.util.Defense;
25		import org.apache.tapestry.services.ComponentMessagesSource;
26		import org.apache.tapestry.spec.IComponentSpecification;
27
28		/**
29		* Injects the read-only {@link org.apache.tapestry.IComponent#getMessages() messages}property into
30		* all components.
31		*
32		* @author Howard M. Lewis Ship
33		* @since 4.0
34		*/
35		public class InjectMessagesWorker implements EnhancementWorker
36		{
37		final String MESSAGES_PROPERTY = "messages";
38
39		private ErrorLog _errorLog;
40
41		private ComponentMessagesSource _componentMessagesSource;
42
43		final MethodSignature METHOD_SIGNATURE = new MethodSignature(Messages.class, "getMessages",
44		null, null);
45
46	1227	public void performEnhancement(EnhancementOperation op, IComponentSpecification spec)
47		{
48	1227	Location location = spec.getLocation();
49
50	1227	try
51		{
52	1227	injectMessages(op, location);
53		}
54		catch (Exception ex)
55		{
56	3	_errorLog.error(EnhanceMessages.errorAddingProperty(MESSAGES_PROPERTY, op
57		.getBaseClass(), ex), location, ex);
58		}
59		}
60
61	1227	public void injectMessages(EnhancementOperation op, Location location)
62		{
63	1227	Defense.notNull(op, "op");
64
65	1227	op.claimReadonlyProperty(MESSAGES_PROPERTY);
66
67	1224	String sourceField = op.addInjectedField(
68		"_$componentMessagesSource",
69		ComponentMessagesSource.class,
70		_componentMessagesSource);
71
72	1224	op.addField("_$messages", Messages.class);
73
74	1224	BodyBuilder builder = new BodyBuilder();
75	1224	builder.begin();
76	1224	builder.addln("if (_$messages == null)");
77	1224	builder.addln(" _$messages = {0}.getMessages(this);", sourceField);
78	1224	builder.addln("return _$messages;");
79	1224	builder.end();
80
81	1224	op.addMethod(Modifier.PUBLIC, METHOD_SIGNATURE, builder.toString(), location);
82		}
83
84	174	public void setComponentMessagesSource(ComponentMessagesSource componentMessagesSource)
85		{
86	174	_componentMessagesSource = componentMessagesSource;
87		}
88
89	120	public void setErrorLog(ErrorLog errorLog)
90		{
91	120	_errorLog = errorLog;
92		}
93		}