core/src/test/java/org/apache/commons/proxy2/util/SuffixInterceptor.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.proxy2.util;

import org.apache.commons.proxy2.Interceptor;
import org.apache.commons.proxy2.Invocation;

/**
 * @author James Carman
 * @since 1.0
 */
@SuppressWarnings("serial")
public class SuffixInterceptor implements Interceptor
{
    //**********************************************************************************************************************
    // Fields
    //**********************************************************************************************************************

    private final String suffix;

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

    public SuffixInterceptor(String suffix)
    {
        this.suffix = suffix;
    }

    //**********************************************************************************************************************
    // Interceptor Implementation
    //**********************************************************************************************************************

    @Override
    public Object intercept(Invocation methodInvocation) throws Throwable
    {
        Object result = methodInvocation.proceed();
        if (result instanceof String)
        {
            result = ((String) result) + suffix;
        }
        return result;
    }
}