Spring based utility class for logging HTTP request and response data

RequestResponseLoggingUtil.java

package com.b8labs.utils;


import org.apache.commons.io.IOUtils;
import org.springframework.web.util.ContentCachingRequestWrapper;
import org.springframework.web.util.ContentCachingResponseWrapper;
import org.springframework.web.util.WebUtils;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;

/**
 * Http Request/Response utility
 */
public class RequestResponseLoggingUtil {
    public static String getStringFromInputStream(InputStream is) {
        StringWriter writer = new StringWriter();
        String encoding = "UTF-8";
        try {
            IOUtils.copy(is, writer, encoding);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return writer.toString();
    }

    public static String getRequestData(final HttpServletRequest request) throws UnsupportedEncodingException {
        String payload = null;
        ContentCachingRequestWrapper wrapper = WebUtils.getNativeRequest(request, ContentCachingRequestWrapper.class);
        if (wrapper != null) {
            byte[] buf = wrapper.getContentAsByteArray();
            if (buf.length > 0) {
                payload = new String(buf, 0, buf.length, wrapper.getCharacterEncoding());
            }
        }
        return payload;
    }

    public static String getResponseData(final HttpServletResponse response) throws IOException {
        String payload = null;
        ContentCachingResponseWrapper wrapper =
                WebUtils.getNativeResponse(response, ContentCachingResponseWrapper.class);
        if (wrapper != null) {
            byte[] buf = wrapper.getContentAsByteArray();
            if (buf.length > 0) {
                payload = new String(buf, 0, buf.length, wrapper.getCharacterEncoding());
                wrapper.copyBodyToResponse();
            }
        }
        return payload;
    }
}