1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.commons.proxy.interceptor.filter; 19 20 import org.apache.commons.proxy.interceptor.MethodFilter; 21 22 import java.lang.reflect.Method; 23 import java.util.Arrays; 24 import java.util.HashSet; 25 import java.util.Set; 26 27 /** 28 * A simple method filter implementation that merely returns true if the method's name is in a set of accepted names. 29 * 30 * @author James Carman 31 * @since 1.0 32 */ 33 public class SimpleFilter implements MethodFilter 34 { 35 //---------------------------------------------------------------------------------------------------------------------- 36 // Fields 37 //---------------------------------------------------------------------------------------------------------------------- 38 39 private final Set methodNames; 40 41 //---------------------------------------------------------------------------------------------------------------------- 42 // Constructors 43 //---------------------------------------------------------------------------------------------------------------------- 44 45 /** 46 * Creates a simple filter that accepts no methods. 47 */ 48 public SimpleFilter() 49 { 50 this.methodNames = new HashSet(); 51 } 52 53 /** 54 * Creates a simple filter that accepts methods matching the supplied names. 55 * @param methodNames the names 56 */ 57 public SimpleFilter( String[] methodNames ) 58 { 59 this.methodNames = new HashSet( Arrays.asList( methodNames ) ); 60 } 61 62 //---------------------------------------------------------------------------------------------------------------------- 63 // MethodFilter Implementation 64 //---------------------------------------------------------------------------------------------------------------------- 65 66 public boolean accepts( Method method ) 67 { 68 return methodNames.contains( method.getName() ); 69 } 70 } 71