com.pagecrumb.proxy.wrapper.LoggingResponseWrapper.java Source code

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Here is the source code for com.pagecrumb.proxy.wrapper.LoggingResponseWrapper.java

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/**
 *    
 * Copyright 2013 Pagecrumb
 *
 * Licensed 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 com.pagecrumb.proxy.wrapper;

import java.io.IOException;
import java.io.OutputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import org.apache.commons.io.output.TeeOutputStream;

/**
 * This utility wrapper is used to branch a {@link HttpServletResponse} into two streams.
 * One stream is output and the other stream is re-directed to a System output for logging.
 * @author kerby
 *
 */
public class LoggingResponseWrapper extends HttpServletResponseWrapper {

    public LoggingResponseWrapper(HttpServletResponse response) {
        super(response);
    }

    public ServletOutputStream getOutputStream() throws IOException {
        return new DelegatingServletOutputStream(new TeeOutputStream(super.getOutputStream(), outputStream()));
    }

    private OutputStream outputStream() {
        return System.out;
    }
}