package com.ora.jsp.beans.debug;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
/**
* This class is a bean that can be used to extract debug
* information from a JSP PageContext.
*
* @author Hans Bergsten, Gefion software <hans@gefionsoftware.com>
* @version 2.0
*/
public class DebugBean {
private PageContext pageContext;
private String debugType;
private ServletContext context;
/**
* Sets the pageContext property.
*/
public void setPageContext(PageContext pageContext) {
this.pageContext = pageContext;
}
/**
* Returns a Map with all basic request information.
*/
public Map getRequestInfo() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
info.put("authType", nullToString(req.getAuthType()));
info.put("characterEncoding", nullToString(req.getCharacterEncoding()));
info.put("contentLength", new Integer(req.getContentLength()).toString());
info.put("contentType", nullToString(req.getContentType()));
info.put("contextPath", nullToString(req.getContextPath()));
info.put("pathInfo", nullToString(req.getPathInfo()));
info.put("protocol", nullToString(req.getProtocol()));
info.put("queryString", nullToString(req.getQueryString()));
info.put("remoteAddr", nullToString(req.getRemoteAddr()));
info.put("remoteHost", nullToString(req.getRemoteHost()));
info.put("remoteUser", nullToString(req.getRemoteUser()));
info.put("requestURI", nullToString(req.getRequestURI()));
info.put("scheme", nullToString(req.getScheme()));
info.put("serverName", nullToString(req.getServerName()));
info.put("serverPort", new Integer(req.getServerPort()).toString());
info.put("servletPath", nullToString(req.getServletPath()));
return info;
}
/**
* Returns a Map with all header information.
*/
public Map getHeaders() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
Enumeration names = req.getHeaderNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
Enumeration values = req.getHeaders(name);
StringBuffer sb = new StringBuffer();
boolean first = true;
while (values.hasMoreElements()) {
if (!first) {
sb.append(" | ");
}
first = false;
sb.append(values.nextElement());
}
info.put(name, sb.toString());
}
return info;
}
/**
* Returns a Map with all cookie information.
*/
public Map getCookies() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
Cookie[] cookies = req.getCookies();
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
info.put(cookies[i].getName(), cookies[i].getValue());
}
}
return info;
}
/**
* Returns a Map with all request parameter information.
*/
public Map getParams() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
Enumeration names = req.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
String[] values = req.getParameterValues(name);
StringBuffer sb = new StringBuffer();
for (int i = 0; i < values.length; i++) {
if (i != 0) {
sb.append(" | ");
}
sb.append(values[i]);
}
info.put(name, sb.toString());
}
return info;
}
/**
* Returns a Map with all request scope variables.
*/
public Map getRequestScope() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
Enumeration names = req.getAttributeNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
Object value = req.getAttribute(name);
info.put(name, toStringValue(value));
}
return info;
}
/**
* Returns a Map with all page scope variables.
*/
public Map getPageScope() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
Enumeration names =
pageContext.getAttributeNamesInScope(PageContext.PAGE_SCOPE);
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
Object value = pageContext.getAttribute(name);
info.put(name, toStringValue(value));
}
return info;
}
/**
* Returns a Map with all session scope variables.
*/
public Map getSessionScope() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
HttpSession session = req.getSession();
Enumeration names = session.getAttributeNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
Object value = session.getAttribute(name);
info.put(name, toStringValue(value));
}
return info;
}
/**
* Returns a Map with all application scope variables.
*/
public Map getApplicationScope() {
if (pageContext == null) {
throw new IllegalStateException("The pageContext property is not set");
}
Map info = new HashMap();
ServletContext context = pageContext.getServletContext();
Enumeration names = context.getAttributeNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
Object value = context.getAttribute(name);
info.put(name, toStringValue(value));
}
return info;
}
/**
* Returns the String "null" if the value is null,
* otherwise the value itself.
*/
private String nullToString(String value) {
if (value == null) {
return "null";
}
else {
return value;
}
}
/**
* Returns a String representation of the specified
* Object, in a format suitable for debug output.
*/
private String toStringValue(Object value) {
StringBuffer sb = new StringBuffer();
Class type = value.getClass();
if (type.isArray()) {
Class componentType = type.getComponentType();
sb.append(componentType.getName());
sb.append("[]: {");
if (!componentType.isPrimitive()) {
Object[] arr = (Object[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Boolean.TYPE) {
boolean[] arr = (boolean[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Byte.TYPE) {
byte[] arr = (byte[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Character.TYPE) {
char[] arr = (char[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Double.TYPE) {
double[] arr = (double[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Float.TYPE) {
float[] arr = (float[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Integer.TYPE) {
int[] arr = (int[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Long.TYPE) {
long[] arr = (long[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
else if (componentType == Short.TYPE) {
short[] arr = (short[]) value;
for (int i = 0; i < arr.length; i++) {
if (i != 0) {
sb.append(", ");
}
sb.append(arr[i]);
}
}
sb.append("}");
}
else {
sb.append(value.getClass().getName()).
append(": ").
append(value.toString());
}
return sb.toString();
}
}
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