src/main/java/org/apache/commons/proxy/interceptor/filter/SimpleFilter.java

/*
 * 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.commons.proxy.interceptor.filter;

import org.apache.commons.proxy.interceptor.MethodFilter;

import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

/**
 * A simple method filter implementation that merely returns true if the method's name is in a set of accepted names.
 *
 * @author James Carman
 * @since 1.0
 */
public class SimpleFilter implements MethodFilter
{
//**********************************************************************************************************************
// Fields
//**********************************************************************************************************************

    private final Set methodNames;

//**********************************************************************************************************************
// Constructors
//**********************************************************************************************************************

    /**
     * Creates a simple filter that accepts no methods.
     */
    public SimpleFilter()
    {
        this.methodNames = new HashSet();
    }

    /**
     * Creates a simple filter that accepts methods matching the supplied names.
     *
     * @param methodNames the names
     */
    public SimpleFilter( String[] methodNames )
    {
        this.methodNames = new HashSet(Arrays.asList(methodNames));
    }

//**********************************************************************************************************************
// MethodFilter Implementation
//**********************************************************************************************************************

    public boolean accepts( Method method )
    {
        return methodNames.contains(method.getName());
    }
}