| /* |
| * Copyright (c) OSGi Alliance (2012). All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package aQute.libg.reporter; |
| |
| import java.lang.reflect.*; |
| import java.util.*; |
| |
| import aQute.libg.reporter.Messages.ERROR; |
| import aQute.libg.reporter.Messages.WARNING; |
| |
| public class ReporterMessages { |
| |
| @SuppressWarnings("unchecked") |
| public static <T> T base(final Reporter reporter, Class<T> messages) { |
| return (T) Proxy.newProxyInstance(messages.getClassLoader(), new Class[] { |
| messages |
| }, new InvocationHandler() { |
| |
| public Object invoke(Object target, Method method, Object[] args) throws Throwable { |
| if (reporter.isExceptions() && args!=null) { |
| for (Object o : args) { |
| if (o instanceof Throwable) |
| ((Throwable) o).printStackTrace(); |
| } |
| } |
| String format; |
| Message d = method.getAnnotation(Message.class); |
| if (d == null) { |
| String name = method.getName(); |
| StringBuilder sb = new StringBuilder(); |
| sb.append(name.charAt(0)); |
| for (int i = 1; i < name.length(); i++) { |
| char c = name.charAt(i); |
| switch (c) { |
| case '_' : |
| sb.append(" %s, "); |
| break; |
| |
| default : |
| if (Character.isUpperCase(c)) { |
| sb.append(" "); |
| c = Character.toLowerCase(c); |
| } |
| sb.append(c); |
| } |
| } |
| format = sb.toString(); |
| } else |
| format = d.value(); |
| |
| try { |
| if (method.getReturnType() == ERROR.class) { |
| reporter.error(format, args); |
| } else if (method.getReturnType() == WARNING.class) { |
| reporter.warning(format, args); |
| } else |
| reporter.trace(format, args); |
| } |
| catch (IllegalFormatException e) { |
| reporter.error("Formatter failed: %s %s %s", method.getName(), format, Arrays.toString(args)); |
| } |
| return null; |
| } |
| }); |
| } |
| } |