Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
EntryPoint |
|
| 1.75;1.75 |
1 | /* | |
2 | * $Id: EntryPoint.java 7976 2007-08-21 14:26:13Z dirk.olmes $ | |
3 | * -------------------------------------------------------------------------------------- | |
4 | * Copyright (c) MuleSource, Inc. All rights reserved. http://www.mulesource.com | |
5 | * | |
6 | * The software in this package is published under the terms of the CPAL v1.0 | |
7 | * license, a copy of which has been included with this distribution in the | |
8 | * LICENSE.txt file. | |
9 | */ | |
10 | ||
11 | package org.mule.impl.model.resolvers; | |
12 | ||
13 | import java.lang.reflect.InvocationTargetException; | |
14 | import java.lang.reflect.Method; | |
15 | ||
16 | import org.apache.commons.logging.Log; | |
17 | import org.apache.commons.logging.LogFactory; | |
18 | ||
19 | /** | |
20 | * <code>EntryPoint</code> is a method on a Mule-managed component that is invoked | |
21 | * when an event for the component is received. | |
22 | */ | |
23 | public class EntryPoint | |
24 | { | |
25 | /** | |
26 | * logger used by this class | |
27 | */ | |
28 | 0 | protected static final Log logger = LogFactory.getLog(EntryPoint.class); |
29 | ||
30 | /** | |
31 | * the method on the object to invoke | |
32 | */ | |
33 | private Method method; | |
34 | ||
35 | /** | |
36 | * Creates a new EntryPoint with the given method | |
37 | * | |
38 | * @param method the method to invoke on the component | |
39 | */ | |
40 | public EntryPoint(Method method) | |
41 | 0 | { |
42 | 0 | this.method = method; |
43 | 0 | } |
44 | ||
45 | /** | |
46 | * Will invoke the entry point method on the given component | |
47 | * | |
48 | * @param component the component to invoke | |
49 | * @param arg the argument to pass to the method invocation | |
50 | * @return An object (if any) returned by the invocation | |
51 | * @throws InvocationTargetException | |
52 | * @throws IllegalAccessException | |
53 | */ | |
54 | public Object invoke(Object component, Object arg) | |
55 | throws InvocationTargetException, IllegalAccessException | |
56 | { | |
57 | 0 | String methodCall = null; |
58 | 0 | if (logger.isDebugEnabled()) |
59 | { | |
60 | 0 | methodCall = component.getClass().getName() + "." + method.getName() + "(" |
61 | + arg.getClass().getName() + ")"; | |
62 | 0 | logger.debug("Invoking " + methodCall); |
63 | } | |
64 | ||
65 | 0 | Object result = method.invoke(component, new Object[]{arg}); |
66 | 0 | if (logger.isDebugEnabled()) |
67 | { | |
68 | 0 | logger.debug("Result of call " + methodCall + " is " + result); |
69 | } | |
70 | 0 | return result; |
71 | } | |
72 | ||
73 | /** | |
74 | * Determines if the <code>EntryPoint</code> is avoid method or not | |
75 | * | |
76 | * @return true if the method is void | |
77 | */ | |
78 | public boolean isVoid() | |
79 | { | |
80 | 0 | return method.getReturnType().getName().equals("void"); |
81 | } | |
82 | ||
83 | /** | |
84 | * Gets the method name | |
85 | * | |
86 | * @return the method name | |
87 | */ | |
88 | public String getName() | |
89 | { | |
90 | 0 | if (method == null) |
91 | { | |
92 | 0 | return null; |
93 | } | |
94 | 0 | return method.getName(); |
95 | } | |
96 | ||
97 | /** | |
98 | * Gets the argument type for the method | |
99 | * | |
100 | * @return the argument type. It should never be null | |
101 | */ | |
102 | public Class getParameterType() | |
103 | { | |
104 | 0 | return method.getParameterTypes()[0]; |
105 | } | |
106 | ||
107 | /** | |
108 | * Gets the method return type of the method | |
109 | * | |
110 | * @return the return type or null if the method is void | |
111 | */ | |
112 | public Class getReturnType() | |
113 | { | |
114 | 0 | if (isVoid()) |
115 | { | |
116 | 0 | return null; |
117 | } | |
118 | else | |
119 | { | |
120 | 0 | return method.getReturnType(); |
121 | } | |
122 | } | |
123 | ||
124 | protected void setMethod(Method method) | |
125 | { | |
126 | 0 | this.method = method; |
127 | 0 | } |
128 | ||
129 | protected Method getMethod() | |
130 | { | |
131 | 0 | return method; |
132 | } | |
133 | } |