com.github.jerryxia.devhelper.snoop.support.servlet.SnoopServlet Maven / Gradle / Ivy

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This is a helper tool library in developing or testing java web application.

There is a newer version: 1.1.2

package com.github.jerryxia.devhelper.snoop.support.servlet;

import java.io.IOException;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.Map;
import java.util.Map.Entry;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.github.jerryxia.devhelper.snoop.JvmMemoryInfo;
import com.github.jerryxia.devhelper.snoop.MemoryPoolMXBeanInfo;
import com.github.jerryxia.devhelper.snoop.Monitor;

/**
 * @author Administrator
 *
 */
@SuppressWarnings("serial")
public class SnoopServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        JvmMemoryInfo jvmMemoryInfo = Monitor.currentMonitor().jvmMemoryInfo();
        RequestInformation requestInfo = buildRequestInfo(req);
        StringBuffer sb = new StringBuffer(1024 * 64);
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("Servlet Snoop Page");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("JVM Memory Monitor");

        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("Memory MXBean");
        sb.append("
Heap Memory Usage ");
        sb.append(jvmMemoryInfo.getMemoryMXBeanInfo().getHeapMemoryUsag());
        sb.append("
Non-Heap Memory Usage ");
        sb.append(jvmMemoryInfo.getMemoryMXBeanInfo().getNonHeapMemoryUsag());
        sb.append("");

        sb.append("Memory Pool MXBeans");
        for(MemoryPoolMXBeanInfo memoryPoolMXBeanInfo:  jvmMemoryInfo.getMemoryPoolMXBeansInfo()) {
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append(memoryPoolMXBeanInfo.getName());
            sb.append("
Type ");
            sb.append(memoryPoolMXBeanInfo.getType());
            sb.append("
Memory Usage ");
            sb.append(memoryPoolMXBeanInfo.getMemoryUsage());
            sb.append("
Peak Usage ");
            sb.append(memoryPoolMXBeanInfo.getPeakMemoryUsage());
            sb.append("
Collection Usage ");
            sb.append(memoryPoolMXBeanInfo.getCollectionUsage());
            sb.append("");
        }

        sb.append("Request information");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");
        sb.append("");sb.append("Requested URL");sb.append(" ");sb.append(requestInfo.getRequestURL());sb.append("
");sb.append("Request Method");sb.append(" ");sb.append(requestInfo.getMethod());sb.append("
");sb.append("Request URI");sb.append(" ");sb.append(requestInfo.getRequestURI());sb.append("
");sb.append("Request protocol");sb.append(" ");sb.append(requestInfo.getProtocol());sb.append("
");sb.append("Servlet path");sb.append(" ");sb.append(requestInfo.getServletPath());sb.append("
");sb.append("Path info");sb.append(" ");sb.append(requestInfo.getPathInfo());sb.append("
");sb.append("Path translated");sb.append(" ");sb.append(requestInfo.getPathTranslated());sb.append("
");sb.append("Query string");sb.append(" ");sb.append(requestInfo.getQueryString().replaceAll("<", "<").replaceAll(">", ">"));sb.append("
");sb.append("Content length");sb.append(" ");sb.append(requestInfo.getContentLength());sb.append("
");sb.append("Content type");sb.append(" ");sb.append(requestInfo.getContentType());sb.append("
");sb.append("Server name");sb.append(" ");sb.append(requestInfo.getServerName());sb.append("
");sb.append("Server port");sb.append(" ");sb.append(requestInfo.getServerPort());sb.append("
");sb.append("Remote user");sb.append(" ");sb.append(requestInfo.getRemoteUser());sb.append("
");sb.append("Remote address");sb.append(" ");sb.append(requestInfo.getRemoteAddr());sb.append("
");sb.append("Remote host");sb.append(" ");sb.append(requestInfo.getRemoteHost());sb.append("
");sb.append("Authorization scheme");sb.append(" ");sb.append(requestInfo.getAuthType());sb.append("");

        sb.append("Request headers");
        sb.append("");
        for(Entry item : requestInfo.getRequestHeaders().entrySet()) {
            for(String val : item.getValue()) {
                sb.append("");
                sb.append("");
                sb.append("");
                sb.append("");
            }
        }
        sb.append("");sb.append(item.getKey());sb.append(" ");sb.append(val);sb.append("");

        sb.append("Request parameters");
        sb.append("");
        for(Entry item : requestInfo.getRequestParameters().entrySet()) {
            for(String val : item.getValue()) {
                sb.append("");
                sb.append("");
                sb.append("");
                sb.append("");
            }
        }
        sb.append("");sb.append(item.getKey().replaceAll("<", "<").replaceAll(">", ">"));sb.append(" ");sb.append(val.replaceAll("<", "<").replaceAll(">", ">"));sb.append("");

        sb.append("Request Attributes");
        sb.append("");
        for(Entry item : requestInfo.getRequestAttributes().entrySet()) {
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
        }
        sb.append("");sb.append(item.getKey().replaceAll("<", "<").replaceAll(">", ">"));sb.append(" ");sb.append(item.getValue().toString().replaceAll("<", "<").replaceAll(">", ">"));sb.append("");

        sb.append("Init parameters");
        sb.append("");
        for(Entry item : requestInfo.getInitParameters().entrySet()) {
            sb.append("");
            sb.append("");
            sb.append("");
            sb.append("");
        }
        sb.append("");sb.append(item.getKey());sb.append(" ");sb.append(item.getValue());sb.append("");

        sb.append("");
        sb.append("");
        sb.append("");
        resp.setContentType("text/html;charset=UTF-8");
        resp.getWriter().print(sb.toString());
    }

    private RequestInformation buildRequestInfo(HttpServletRequest req) {
        RequestInformation requestInfo = new RequestInformation();
        requestInfo.setRequestURL(req.getRequestURL().toString());
        requestInfo.setMethod(req.getMethod());
        requestInfo.setRequestURI(req.getRequestURI());
        requestInfo.setProtocol(req.getProtocol());
        requestInfo.setServletPath(req.getServletPath());
        requestInfo.setPathTranslated(req.getPathTranslated());
        requestInfo.setQueryString(req.getQueryString() != null ? req.getQueryString() : "");
        requestInfo.setContentLength(req.getContentLength());
        requestInfo.setContentType(req.getContentType());
        requestInfo.setServerName(req.getServerName());
        requestInfo.setServerPort(req.getServerPort());
        requestInfo.setRemoteUser(req.getRemoteUser());
        requestInfo.setRemoteAddr(req.getRemoteAddr());
        requestInfo.setRemoteHost(req.getRemoteHost());
        requestInfo.setAuthType(req.getAuthType());

        Map requestHeaders = new LinkedHashMap();
        Enumeration headerNames = req.getHeaderNames();
        while (headerNames.hasMoreElements()) {
            String headName = headerNames.nextElement();
            LinkedList arrayVals = new LinkedList();
            Enumeration vals = req.getHeaders(headName);
            while(vals.hasMoreElements()) {
                arrayVals.add(vals.nextElement());
            }
            requestHeaders.put(headName, arrayVals.toArray(new String[arrayVals.size()]));
        }
        requestInfo.setRequestHeaders(requestHeaders);

        Map requestParameters = new LinkedHashMap(req.getParameterMap());
        requestInfo.setRequestParameters(requestParameters);

        Map requestAttributes = new LinkedHashMap();
        Enumeration attributeNames = req.getAttributeNames();
        while (attributeNames.hasMoreElements()) {
            String attributeName = attributeNames.nextElement();
            Object val = req.getAttribute(attributeName);
            requestAttributes.put(attributeName, val);
        }
        requestInfo.setRequestAttributes(requestAttributes);

        Map initParameters = new LinkedHashMap();
        Enumeration initParameterNames = getServletConfig().getInitParameterNames();
        while (initParameterNames.hasMoreElements()) {
            String initParameterName = initParameterNames.nextElement();
            String val = getServletConfig().getInitParameter(initParameterName);
            initParameters.put(initParameterName, val);
        }
        requestInfo.setInitParameters(initParameters);
        return requestInfo;
    }

}

"); sb.append("Memory MXBean"); sb.append("
Heap Memory Usage	"); sb.append(jvmMemoryInfo.getMemoryMXBeanInfo().getHeapMemoryUsag()); sb.append("
Non-Heap Memory Usage	"); sb.append(jvmMemoryInfo.getMemoryMXBeanInfo().getNonHeapMemoryUsag()); sb.append("

"); sb.append(memoryPoolMXBeanInfo.getName()); sb.append("
Type	"); sb.append(memoryPoolMXBeanInfo.getType()); sb.append("
Memory Usage	"); sb.append(memoryPoolMXBeanInfo.getMemoryUsage()); sb.append("
Peak Usage	"); sb.append(memoryPoolMXBeanInfo.getPeakMemoryUsage()); sb.append("
Collection Usage	"); sb.append(memoryPoolMXBeanInfo.getCollectionUsage()); sb.append("

");sb.append("Requested URL");sb.append("	");sb.append(requestInfo.getRequestURL());sb.append("
");sb.append("Request Method");sb.append("	");sb.append(requestInfo.getMethod());sb.append("
");sb.append("Request URI");sb.append("	");sb.append(requestInfo.getRequestURI());sb.append("
");sb.append("Request protocol");sb.append("	");sb.append(requestInfo.getProtocol());sb.append("
");sb.append("Servlet path");sb.append("	");sb.append(requestInfo.getServletPath());sb.append("
");sb.append("Path info");sb.append("	");sb.append(requestInfo.getPathInfo());sb.append("
");sb.append("Path translated");sb.append("	");sb.append(requestInfo.getPathTranslated());sb.append("
");sb.append("Query string");sb.append("	");sb.append(requestInfo.getQueryString().replaceAll("<", "<").replaceAll(">", ">"));sb.append("
");sb.append("Content length");sb.append("	");sb.append(requestInfo.getContentLength());sb.append("
");sb.append("Content type");sb.append("	");sb.append(requestInfo.getContentType());sb.append("
");sb.append("Server name");sb.append("	");sb.append(requestInfo.getServerName());sb.append("
");sb.append("Server port");sb.append("	");sb.append(requestInfo.getServerPort());sb.append("
");sb.append("Remote user");sb.append("	");sb.append(requestInfo.getRemoteUser());sb.append("
");sb.append("Remote address");sb.append("	");sb.append(requestInfo.getRemoteAddr());sb.append("
");sb.append("Remote host");sb.append("	");sb.append(requestInfo.getRemoteHost());sb.append("
");sb.append("Authorization scheme");sb.append("	");sb.append(requestInfo.getAuthType());sb.append("