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:	108		Methods:	3
	NCLOC:	54		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

DirectCallback.java

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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.callback;
16
17		import org.apache.hivemind.ApplicationRuntimeException;
18		import org.apache.hivemind.util.Defense;
19		import org.apache.tapestry.IComponent;
20		import org.apache.tapestry.IDirect;
21		import org.apache.tapestry.IPage;
22		import org.apache.tapestry.IRequestCycle;
23
24		/**
25		* Simple callback for re-invoking a {@link IDirect} trigger.
26		*
27		* @author Howard Lewis Ship
28		* @since 0.2.9
29		*/
30
31		public class DirectCallback implements ICallback
32		{
33		/**
34		* @since 2.0.4
35		*/
36
37		private static final long serialVersionUID = -8888847655917503471L;
38
39		private String _pageName;
40
41		private String _componentIdPath;
42
43		private Object[] _parameters;
44
45	12	public String toString()
46		{
47	12	StringBuffer buffer = new StringBuffer("DirectCallback[");
48
49	12	buffer.append(_pageName);
50	12	buffer.append('/');
51	12	buffer.append(_componentIdPath);
52
53	12	if (_parameters != null)
54		{
55	6	for (int i = 0; i < _parameters.length; i++)
56		{
57	15	buffer.append(i == 0 ? " " : ", ");
58	15	buffer.append(_parameters[i]);
59		}
60		}
61
62	12	buffer.append(']');
63
64	12	return buffer.toString();
65
66		}
67
68		/**
69		* Creates a new DirectCallback for the component. The parameters (which may be null) is
70		* retained, not copied.
71		*/
72
73	12	public DirectCallback(IDirect component, Object[] parameters)
74		{
75	12	Defense.notNull(component, "component");
76
77	12	_pageName = component.getPage().getPageName();
78	12	_componentIdPath = component.getIdPath();
79	12	_parameters = parameters;
80		}
81
82		/**
83		* Locates the {@link IDirect}component that was previously identified (and whose page and id
84		* path were stored). Invokes {@link IRequestCycle#setListenerParameters(Object[])(Object[])}to
85		* restore the service parameters, then invokes {@link IDirect#trigger(IRequestCycle)}on the
86		* component.
87		*/
88
89	12	public void performCallback(IRequestCycle cycle)
90		{
91	12	IPage page = cycle.getPage(_pageName);
92	12	IComponent component = page.getNestedComponent(_componentIdPath);
93	12	IDirect direct = null;
94
95	12	try
96		{
97	12	direct = (IDirect) component;
98		}
99		catch (ClassCastException ex)
100		{
101	3	throw new ApplicationRuntimeException(CallbackMessages.componentNotDirect(component),
102		component, null, ex);
103		}
104
105	9	cycle.setListenerParameters(_parameters);
106	9	direct.trigger(cycle);
107		}
108		}