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:	86		Methods:	3
	NCLOC:	46		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

InjectStateFlagWorker.java

100%

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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.ApplicationRuntimeException;
20		import org.apache.hivemind.Location;
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.engine.state.ApplicationStateManager;
25		import org.apache.tapestry.spec.InjectSpecification;
26
27		/**
28		* Injects a boolean property that indicates if a particular application state object already
29		* exists. This is useful in situations where you are trying to prevent the creation of the ASO (and
30		* thus, prevent the creation of the HttpSession).
31		*
32		* @author Howard M. Lewis Ship
33		* @since 4.0
34		*/
35		public class InjectStateFlagWorker implements InjectEnhancementWorker
36		{
37		private ApplicationStateManager _applicationStateManager;
38
39	9	public void performEnhancement(EnhancementOperation op, InjectSpecification spec)
40		{
41	9	injectStateFlag(op, spec.getObject(), spec.getProperty(), spec.getLocation());
42		}
43
44	9	void injectStateFlag(EnhancementOperation op, String objectName, String propertyName,
45		Location location)
46		{
47	9	Defense.notNull(op, "op");
48	9	Defense.notNull(objectName, "objectName");
49	9	Defense.notNull(propertyName, "propertyName");
50
51	9	Class propertyType = op.getPropertyType(propertyName);
52
53		// null means no property at all; it's just in the XML
54		// which is ok. Otherwise, make sure it is exactly boolean.
55
56	9	if (propertyType != null && propertyType != boolean.class)
57	3	throw new ApplicationRuntimeException(EnhanceMessages.mustBeBoolean(propertyName),
58		location, null);
59
60	6	op.claimReadonlyProperty(propertyName);
61
62	6	String managerField = op.addInjectedField(
63		"_$applicationStateManager",
64		ApplicationStateManager.class,
65		_applicationStateManager);
66
67	6	BodyBuilder builder = new BodyBuilder();
68	6	builder.begin();
69	6	builder.add("return {0}.exists(", managerField);
70	6	builder.addQuoted(objectName);
71	6	builder.addln(");");
72	6	builder.end();
73
74	6	String methodName = op.getAccessorMethodName(propertyName);
75
76	6	MethodSignature sig = new MethodSignature(boolean.class, methodName, null, null);
77
78	6	op.addMethod(Modifier.PUBLIC, sig, builder.toString(), location);
79		}
80
81	9	public void setApplicationStateManager(ApplicationStateManager applicationStateManager)
82		{
83	9	_applicationStateManager = applicationStateManager;
84		}
85
86		}