| /******************************************************************************* |
| * Copyright (c) 2009, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.tests.ccvs.ui; |
| |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.team.tests.ccvs.core.EclipseTest; |
| |
| public class ReflectionUtils { |
| |
| public static Object construct(String className, ClassLoader classLoader, |
| Class<?>[] constructorTypes, Object[] constructorArgs) { |
| Class<?> clazz = null; |
| try { |
| clazz = Class.forName(className, true, classLoader); |
| } catch (ClassNotFoundException e) { |
| EclipseTest.fail(e.getMessage()); |
| } catch (ExceptionInInitializerError e) { |
| EclipseTest.fail(e.getMessage()); |
| } |
| Constructor<?> constructor = null; |
| try { |
| constructor = clazz.getDeclaredConstructor(constructorTypes); |
| } catch (SecurityException e) { |
| EclipseTest.fail(e.getMessage()); |
| } catch (NoSuchMethodException e) { |
| EclipseTest.fail(e.getMessage()); |
| } |
| Assert.isNotNull(constructor); |
| constructor.setAccessible(true); |
| try { |
| return constructor.newInstance(constructorArgs); |
| } catch (IllegalArgumentException | InvocationTargetException | InstantiationException | IllegalAccessException e) { |
| EclipseTest.fail(e.getMessage()); |
| } |
| return null; |
| } |
| |
| public static Object callMethod(Object object, String name, Class<?> types[], |
| Object args[]) { |
| try { |
| Method method = null; |
| Class<?> clazz = object.getClass(); |
| NoSuchMethodException ex = null; |
| while (method == null && clazz != null) { |
| try { |
| method = clazz.getDeclaredMethod(name, types); |
| } catch (NoSuchMethodException e) { |
| if (ex == null) { |
| ex = e; |
| } |
| clazz = clazz.getSuperclass(); |
| } |
| } |
| if (method == null) { |
| throw ex; |
| } |
| method.setAccessible(true); |
| Object ret = method.invoke(object, args); |
| return ret; |
| } catch (IllegalArgumentException | IllegalAccessException | SecurityException | NoSuchMethodException | InvocationTargetException e) { |
| EclipseTest.fail(e.getMessage()); |
| } |
| return null; |
| } |
| |
| public static Object callMethod(Object object, String name, Object args[]) { |
| Class<?> types[] = new Class[args.length]; |
| for (int i = 0; i < args.length; i++) { |
| types[i] = args[i].getClass(); |
| } |
| return callMethod(object, name, types, args); |
| } |
| |
| public static Object getField(Object object, String name) { |
| try { |
| Field field = null; |
| Class<?> clazz = object.getClass(); |
| NoSuchFieldException ex = null; |
| while (field == null && clazz != null) { |
| try { |
| field = clazz.getDeclaredField(name); |
| } catch (NoSuchFieldException e) { |
| if (ex == null) { |
| ex = e; |
| } |
| clazz = clazz.getSuperclass(); |
| } |
| } |
| if (field == null) { |
| throw ex; |
| } |
| field.setAccessible(true); |
| Object ret = field.get(object); |
| return ret; |
| } catch (IllegalArgumentException | IllegalAccessException | SecurityException | NoSuchFieldException e) { |
| EclipseTest.fail(e.getMessage()); |
| } |
| return null; |
| } |
| |
| public static void setField(Object object, String name, Object value) { |
| try { |
| Field field = null; |
| Class<?> clazz = object.getClass(); |
| NoSuchFieldException ex = null; |
| while (field == null && clazz != null) { |
| try { |
| field = clazz.getDeclaredField(name); |
| } catch (NoSuchFieldException e) { |
| if (ex == null) { |
| ex = e; |
| } |
| clazz = clazz.getSuperclass(); |
| } |
| } |
| if (field == null) { |
| throw ex; |
| } |
| field.setAccessible(true); |
| field.set(object, value); |
| } catch (IllegalArgumentException | IllegalAccessException | SecurityException | NoSuchFieldException e) { |
| EclipseTest.fail(e.getMessage()); |
| } |
| } |
| |
| } |