| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.zest.manual.recipes.createConstraint; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.Method; |
| import org.apache.zest.api.concern.ConcernOf; |
| import org.apache.zest.api.constraint.ConstraintViolation; |
| import org.apache.zest.api.constraint.ConstraintViolationException; |
| |
| // START SNIPPET: report |
| public class ParameterViolationConcern extends ConcernOf<InvocationHandler> |
| implements InvocationHandler |
| { |
| public Object invoke( Object proxy, Method method, Object[] args ) |
| throws Throwable |
| { |
| try |
| { |
| return next.invoke( proxy, method, args ); |
| } |
| catch( ConstraintViolationException e ) |
| { |
| for( ConstraintViolation violation : e.constraintViolations() ) |
| { |
| String name = violation.name(); |
| Object value = violation.value(); |
| Annotation constraint = violation.constraint(); |
| report( name, value, constraint ); |
| } |
| throw new IllegalArgumentException("Invalid argument(s)", e); |
| } |
| } |
| |
| // END SNIPPET: report |
| // START SNIPPET: report |
| private void report( String name, Object value, Annotation constraint ) |
| { |
| } |
| } |
| // END SNIPPET: report |