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package org.apache.maven.surefire.util; |
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import java.lang.reflect.Constructor; |
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import java.lang.reflect.InvocationTargetException; |
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import java.lang.reflect.Method; |
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29 | 0 | public class ReflectionUtils |
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{ |
31 | 0 | private static final Class[] NO_ARGS = new Class[0]; |
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33 | 0 | private static final Object[] NO_ARGS_VALUES = new Object[0]; |
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public static Method getMethod( Object instance, String methodName, Class[] parameters ) |
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{ |
38 | 0 | return getMethod( instance.getClass(), methodName, parameters ); |
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} |
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public static Method getMethod( Class clazz, String methodName, Class[] parameters ) |
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{ |
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try |
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{ |
45 | 0 | return clazz.getMethod( methodName, parameters ); |
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} |
47 | 0 | catch ( NoSuchMethodException e ) |
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{ |
49 | 0 | throw new NestedRuntimeException( "When finding method " + methodName, e ); |
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} |
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} |
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public static Method tryGetMethod( Class clazz, String methodName, Class[] parameters ) |
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{ |
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try |
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{ |
57 | 0 | return clazz.getMethod( methodName, parameters ); |
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} |
59 | 0 | catch ( NoSuchMethodException e ) |
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{ |
61 | 0 | return null; |
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} |
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} |
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public static Object invokeGetter( Object instance, String methodName ) |
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{ |
68 | 0 | final Method method = getMethod( instance, methodName, NO_ARGS ); |
69 | 0 | return invokeMethodWithArray( instance, method, NO_ARGS_VALUES ); |
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} |
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public static Constructor getConstructor( Class clazz, Class[] arguments ) |
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{ |
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try |
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{ |
76 | 0 | return clazz.getConstructor( arguments ); |
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} |
78 | 0 | catch ( NoSuchMethodException e ) |
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{ |
80 | 0 | throw new SurefireReflectionException( e ); |
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} |
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} |
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public static Object newInstance( Constructor constructor, Object[] params ) |
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{ |
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try |
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{ |
88 | 0 | return constructor.newInstance( params ); |
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} |
90 | 0 | catch ( InvocationTargetException e ) |
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{ |
92 | 0 | throw new SurefireReflectionException( e ); |
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} |
94 | 0 | catch ( InstantiationException e ) |
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{ |
96 | 0 | throw new SurefireReflectionException( e ); |
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} |
98 | 0 | catch ( IllegalAccessException e ) |
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{ |
100 | 0 | throw new SurefireReflectionException( e ); |
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} |
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} |
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public static Object instantiate( ClassLoader classLoader, String classname ) |
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{ |
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try |
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{ |
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109 | 0 | Class clazz = loadClass( classLoader, classname ); |
110 | 0 | return clazz.newInstance(); |
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} |
112 | 0 | catch ( InstantiationException e ) |
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{ |
114 | 0 | throw new SurefireReflectionException( e ); |
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} |
116 | 0 | catch ( IllegalAccessException e ) |
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{ |
118 | 0 | throw new SurefireReflectionException( e ); |
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} |
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} |
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public static Object instantiateOneArg( ClassLoader classLoader, String className, Class param1Class, |
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Object param1 ) |
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{ |
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try |
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{ |
128 | 0 | Class aClass = loadClass( classLoader, className ); |
129 | 0 | Constructor constructor = ReflectionUtils.getConstructor( aClass, new Class[]{ param1Class } ); |
130 | 0 | return constructor.newInstance( new Object[]{ param1 } ); |
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} |
132 | 0 | catch ( InvocationTargetException e ) |
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{ |
134 | 0 | throw new SurefireReflectionException( e ); |
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} |
136 | 0 | catch ( InstantiationException e ) |
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{ |
138 | 0 | throw new SurefireReflectionException( e ); |
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} |
140 | 0 | catch ( IllegalAccessException e ) |
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{ |
142 | 0 | throw new SurefireReflectionException( e ); |
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} |
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} |
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public static Object instantiateTwoArgs( ClassLoader classLoader, String className, Class param1Class, |
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Object param1, Class param2Class, Object param2 ) |
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{ |
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try |
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{ |
151 | 0 | Class aClass = loadClass( classLoader, className ); |
152 | 0 | Constructor constructor = ReflectionUtils.getConstructor( aClass, new Class[]{ param1Class, param2Class } ); |
153 | 0 | return constructor.newInstance( new Object[]{ param1, param2 } ); |
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} |
155 | 0 | catch ( InvocationTargetException e ) |
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{ |
157 | 0 | throw new SurefireReflectionException( e ); |
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} |
159 | 0 | catch ( InstantiationException e ) |
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{ |
161 | 0 | throw new SurefireReflectionException( e ); |
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} |
163 | 0 | catch ( IllegalAccessException e ) |
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{ |
165 | 0 | throw new SurefireReflectionException( e ); |
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} |
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} |
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public static void invokeSetter( Object o, String name, Class value1clazz, Object value ) |
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{ |
173 | 0 | final Method setter = getMethod( o, name, new Class[]{ value1clazz } ); |
174 | 0 | invokeSetter( o, setter, value ); |
175 | 0 | } |
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public static Object invokeSetter( Object target, Method method, Object value ) |
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{ |
180 | 0 | return invokeMethodWithArray( target, method, new Object[]{ value } ); |
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} |
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public static Object invokeMethodWithArray( Object target, Method method, Object[] args ) |
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{ |
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try |
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{ |
188 | 0 | return method.invoke( target, args ); |
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} |
190 | 0 | catch ( IllegalAccessException e ) |
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{ |
192 | 0 | throw new SurefireReflectionException( e ); |
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} |
194 | 0 | catch ( InvocationTargetException e ) |
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{ |
196 | 0 | throw new SurefireReflectionException( e ); |
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} |
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} |
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public static Object instantiateObject( String className, Class[] types, Object[] params, ClassLoader classLoader ) |
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{ |
203 | 0 | Class clazz = loadClass( classLoader, className ); |
204 | 0 | final Constructor constructor = getConstructor( clazz, types ); |
205 | 0 | return newInstance( constructor, params ); |
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} |
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public static Class tryLoadClass( ClassLoader classLoader, String className ) |
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{ |
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try |
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{ |
212 | 0 | return classLoader.loadClass( className ); |
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} |
214 | 0 | catch ( NoClassDefFoundError ignore ) |
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{ |
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} |
217 | 0 | catch ( ClassNotFoundException ignore ) |
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{ |
219 | 0 | } |
220 | 0 | return null; |
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} |
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public static Class loadClass( ClassLoader classLoader, String className ) |
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{ |
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try |
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{ |
227 | 0 | return classLoader.loadClass( className ); |
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} |
229 | 0 | catch ( NoClassDefFoundError e ) |
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{ |
231 | 0 | throw new SurefireReflectionException( e ); |
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} |
233 | 0 | catch ( ClassNotFoundException e ) |
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{ |
235 | 0 | throw new SurefireReflectionException( e ); |
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} |
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} |
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} |