cn.bc.web.util.DebugUtils.java Source code

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Here is the source code for cn.bc.web.util.DebugUtils.java

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/*
 * Copyright 2010- the original author or authors.
 *
 * 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 cn.bc.web.util;

import java.util.Date;
import java.util.Enumeration;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * WebUI
 * 
 * @author dragon
 * @since 1.0.0
 */
public class DebugUtils {
    static Log logger = LogFactory.getLog(DebugUtils.class);

    public static StringBuffer getDebugInfo(HttpServletRequest request, HttpServletResponse response) {
        @SuppressWarnings("rawtypes")
        Enumeration e;
        String name;
        StringBuffer html = new StringBuffer();

        //session
        HttpSession session = request.getSession();
        html.append("<div><b>session:</b></div><ul>");
        html.append(createLI("Id", session.getId()));
        html.append(createLI("CreationTime", new Date(session.getCreationTime()).toString()));
        html.append(createLI("LastAccessedTime", new Date(session.getLastAccessedTime()).toString()));

        //session:attributes
        e = session.getAttributeNames();
        html.append("<li>attributes:<ul>\r\n");
        while (e.hasMoreElements()) {
            name = (String) e.nextElement();
            html.append(createLI(name, String.valueOf(session.getAttribute(name))));
        }
        html.append("</ul></li>\r\n");
        html.append("</ul>\r\n");

        //request
        html.append("<div><b>request:</b></div><ul>");
        html.append(createLI("URL", request.getRequestURL().toString()));
        html.append(createLI("QueryString", request.getQueryString()));
        html.append(createLI("Method", request.getMethod()));
        html.append(createLI("CharacterEncoding", request.getCharacterEncoding()));
        html.append(createLI("ContentType", request.getContentType()));
        html.append(createLI("Protocol", request.getProtocol()));
        html.append(createLI("RemoteAddr", request.getRemoteAddr()));
        html.append(createLI("RemoteHost", request.getRemoteHost()));
        html.append(createLI("RemotePort", request.getRemotePort() + ""));
        html.append(createLI("RemoteUser", request.getRemoteUser()));
        html.append(createLI("ServerName", request.getServerName()));
        html.append(createLI("ServletPath", request.getServletPath()));
        html.append(createLI("ServerPort", request.getServerPort() + ""));
        html.append(createLI("Scheme", request.getScheme()));
        html.append(createLI("LocalAddr", request.getLocalAddr()));
        html.append(createLI("LocalName", request.getLocalName()));
        html.append(createLI("LocalPort", request.getLocalPort() + ""));
        html.append(createLI("Locale", request.getLocale().toString()));

        //request:headers
        e = request.getHeaderNames();
        html.append("<li>Headers:<ul>\r\n");
        while (e.hasMoreElements()) {
            name = (String) e.nextElement();
            html.append(createLI(name, request.getHeader(name)));
        }
        html.append("</ul></li>\r\n");

        //request:parameters
        e = request.getParameterNames();
        html.append("<li>Parameters:<ul>\r\n");
        while (e.hasMoreElements()) {
            name = (String) e.nextElement();
            html.append(createLI(name, request.getParameter(name)));
        }
        html.append("</ul></li>\r\n");

        html.append("</ul>\r\n");

        //response
        html.append("<div><b>response:</b></div><ul>");
        html.append(createLI("CharacterEncoding", response.getCharacterEncoding()));
        html.append(createLI("ContentType", response.getContentType()));
        html.append(createLI("BufferSize", response.getBufferSize() + ""));
        html.append(createLI("Locale", response.getLocale().toString()));
        html.append("<ul>\r\n");
        return html;
    }

    private static String createLI(String key, String value) {
        return "<li>" + key + ": " + value + "</li>\r\n";
    }
}