| /** |
| * 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.camel.impl.scan; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.camel.spi.PackageScanFilter; |
| |
| /** |
| * Package scan filter for testing if a given class is assignable to another class. |
| */ |
| public class AssignableToPackageScanFilter implements PackageScanFilter { |
| private final Set<Class<?>> parents = new HashSet<Class<?>>(); |
| |
| public AssignableToPackageScanFilter() { |
| } |
| |
| public AssignableToPackageScanFilter(Class<?> parentType) { |
| parents.add(parentType); |
| } |
| |
| public AssignableToPackageScanFilter(Set<Class<?>> parents) { |
| this.parents.addAll(parents); |
| } |
| |
| public void addParentType(Class<?> parentType) { |
| parents.add(parentType); |
| } |
| |
| public boolean matches(Class<?> type) { |
| if (parents != null && parents.size() > 0) { |
| for (Class<?> parent : parents) { |
| if (parent.isAssignableFrom(type)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| for (Class<?> parent : parents) { |
| sb.append(parent.getSimpleName()).append(", "); |
| } |
| sb.setLength(sb.length() > 0 ? sb.length() - 2 : 0); |
| return "is assignable to any of " + sb; |
| } |
| } |