Java tutorial
/* * Copyright 2004 Anite - Central Government Division * http://www.anite.com/publicsector * * 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.anite.ocelot; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletOutputStream; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServletResponseWrapper; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * @author Matthew.Norris */ public class CachedHttpResponse extends HttpServletResponseWrapper { /** logging */ private static Log log = LogFactory.getLog(CachedHttpResponse.class); private CachedServletResponse csr; /** * @param arg0 */ public CachedHttpResponse(javax.servlet.http.HttpServletResponse arg0) { super(arg0); csr = new CachedServletResponse(arg0); } /* * (non-Javadoc) * * @see javax.servlet.ServletResponseWrapper#setResponse(javax.servlet.ServletResponse) */ /** * {@inheritDoc} */ public void setResponse(ServletResponse arg0) { if (log.isInfoEnabled()) { log.info("setResponse"); } csr = new CachedServletResponse(arg0); } /* * (non-Javadoc) * * @see javax.servlet.ServletResponse#getOutputStream() */ /** * {@inheritDoc} */ public ServletOutputStream getOutputStream() throws IOException { if (log.isInfoEnabled()) { log.info("getOutputStream"); } return csr.getOutputStream(); } /* * (non-Javadoc) * * @see javax.servlet.ServletResponse#getWriter() */ /** * {@inheritDoc} */ public PrintWriter getWriter() throws IOException { if (log.isInfoEnabled()) { log.info("getWriter"); } return csr.getWriter(); } /* * (non-Javadoc) * * @see javax.servlet.ServletResponseWrapper#getResponse() */ /** * {@inheritDoc} */ public ServletResponse getResponse() { if (log.isInfoEnabled()) { log.info("getResponse"); } return csr; } }