| /* |
| * |
| * 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.royale.compiler.clients.problems; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.royale.compiler.problems.ICompilerProblem; |
| |
| /** |
| * IFilter problems based on their class; the filter supports |
| * a negative set (don't accept any instances of a given class) |
| * and a positive set (only accept instances of a given class). |
| */ |
| public class ProblemFilterClassCriteria implements IProblemFilter |
| { |
| /** |
| * Construct a purely negative filter. |
| * @param classesToFilterOut - the classes (which may be superclasses) |
| * of problems that should be excluded from the filtered set. |
| */ |
| public ProblemFilterClassCriteria(Class<?>... classesToFilterOut) |
| { |
| this.classesToFilterOut = new HashSet<Class<?>>(Arrays.asList(classesToFilterOut)); |
| this.classesToRequire = new HashSet<Class<?>>(); |
| } |
| |
| /** |
| * Construct a filter with positive and negative requirements. |
| * @param classesToFilterOut - the classes (which may be superclasses) |
| * of problems that should be excluded from the filtered set. |
| * @param classesToRequire - the classes (which may be superclasses) |
| * that problems in the filtered set must extend/instantiate. |
| */ |
| public ProblemFilterClassCriteria(Set<Class<?>> classesToFilterOut, Set<Class<?>> classesToRequire) |
| { |
| this.classesToFilterOut = classesToFilterOut; |
| this.classesToRequire = classesToRequire; |
| } |
| |
| /** |
| * Add a (super)class to be rejected. |
| * @param clazz - the class to be rejected. |
| */ |
| public void addRejectedClass(Class<?> clazz) |
| { |
| assert(!this.classesToRequire.contains(clazz)); |
| this.classesToFilterOut.add(clazz); |
| } |
| |
| /** |
| * Remove a (super)class to was have been rejected. |
| * @param clazz - the class that is now allowed. |
| */ |
| public void removeRejectedClass(Class<?> clazz) |
| { |
| this.classesToFilterOut.remove(clazz); |
| } |
| |
| |
| /** |
| * Add a (super)class to be required. |
| * @param clazz - the class to be required. |
| */ |
| public void addRequiredClass(Class<?> clazz) |
| { |
| assert(!this.classesToFilterOut.contains(clazz)); |
| this.classesToRequire.add(clazz); |
| } |
| |
| @Override |
| public boolean accept(ICompilerProblem p) |
| { |
| for ( Class<?> filter: this.classesToFilterOut ) |
| { |
| // This is equivalent to (p instanceof <filter class>) |
| if ( filter.isInstance(p) ) |
| return false; |
| } |
| |
| for ( Class<?> filter: this.classesToRequire ) |
| { |
| if ( ! (filter.isInstance(p) ) ) |
| return false; |
| } |
| |
| // Passed all checks, accept it. |
| return true; |
| } |
| |
| /** Classes members of the result set may not be instances of. */ |
| private Set<Class<?>> classesToFilterOut; |
| /** Classes members of the result set must be instances of. */ |
| private Set<Class<?>> classesToRequire; |
| } |