net.anotheria.anosite.cms.action.BaseAction Maven / Gradle / Ivy
package net.anotheria.anosite.cms.action;
import net.anotheria.asg.util.bean.ErrorPageBean;
import net.anotheria.maf.action.Action;
import net.anotheria.maf.action.ActionCommand;
import net.anotheria.maf.action.ActionMapping;
import net.anotheria.util.Date;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.jsp.PageContext;
import java.io.PrintWriter;
import java.io.StringWriter;
/**
* Base action for generated sources.
*
* @author lrosenberg
*/
public abstract class BaseAction implements Action {
/**
* {@link Logger} instance.
*/
protected Logger log;
/**
* Attribute parameter: user id.
*/
protected static final String BEAN_USER_ID = "currentUserId";
/**
* Attribute parameter: current action.
*/
protected static final String BEAN_TARGET_ACTION = "anoDocTargetAction";
/**
*
*/
public static final String PARAM_ID = "pId";
/**
* Constants for month names.
*/
public static final String[] MONTH = { "", "JAN", "FEB", "MAR", "APR", "MAI", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC" };
/**
* Basic constructor.
*/
protected BaseAction() {
log = LoggerFactory.getLogger(this.getClass());
}
protected ActionCommand handleError(HttpServletRequest req, HttpServletResponse res, Exception e, ActionMapping mapping) {
ErrorPageBean errbean = new ErrorPageBean();
errbean.setMessage(e.getMessage());
errbean.setStackTrace(throwableToStrackTrace(e));
addBeanToRequest(req, "error", errbean);
return mapping.findCommand(getErrorPageForward());
}
@Override
public void preProcess(ActionMapping mapping, HttpServletRequest req, HttpServletResponse res) throws Exception {
}
@Override
public void postProcess(ActionMapping mapping, HttpServletRequest req, HttpServletResponse res) throws Exception {
}
protected void addBeanToSession(HttpServletRequest request, String key, Object value) {
addBean(request, PageContext.SESSION_SCOPE, key, value);
}
protected void addBeanToApplication(HttpServletRequest request, String key, Object value) {
addBean(request, PageContext.APPLICATION_SCOPE, key, value);
}
protected void addBeanToRequest(HttpServletRequest request, String key, Object value) {
addBean(request, PageContext.REQUEST_SCOPE, key, value);
}
protected Object getBeanFromSession(HttpServletRequest request, String key) {
return getBean(request, PageContext.SESSION_SCOPE, key);
}
protected Object getBeanFromApplication(HttpServletRequest request, String key) {
return getBean(request, PageContext.APPLICATION_SCOPE, key);
}
protected Object getBeanFromRequest(HttpServletRequest request, String key) {
return getBean(request, PageContext.REQUEST_SCOPE, key);
}
protected void removeBeanFromSession(HttpServletRequest request, String key) {
removeBean(request, PageContext.SESSION_SCOPE, key);
}
protected void removeBeanFromApplication(HttpServletRequest request, String key) {
removeBean(request, PageContext.APPLICATION_SCOPE, key);
}
protected void removeBeanFromRequest(HttpServletRequest request, String key) {
removeBean(request, PageContext.REQUEST_SCOPE, key);
}
protected void addBean(HttpServletRequest request, int scope, String key, Object value) {
switch (scope) {
case PageContext.APPLICATION_SCOPE: {
request.getSession().getServletContext().setAttribute(key, value);
break;
}
case PageContext.SESSION_SCOPE: {
request.getSession().setAttribute(key, value);
break;
}
case PageContext.REQUEST_SCOPE:
request.setAttribute(key, value);
break;
default: {
throw new RuntimeException("Unknown scope:" + scope);
}
}
}
protected Object getBean(HttpServletRequest request, int scope, String key) {
switch (scope) {
case PageContext.APPLICATION_SCOPE: {
return request.getSession().getServletContext().getAttribute(key);
}
case PageContext.SESSION_SCOPE: {
return request.getSession().getAttribute(key);
}
case PageContext.REQUEST_SCOPE:
return request.getAttribute(key);
default: {
throw new RuntimeException("Unknown scope:" + scope);
}
}
}
protected void removeBean(HttpServletRequest request, int scope, String key) {
switch (scope) {
case PageContext.APPLICATION_SCOPE: {
request.getSession().getServletContext().removeAttribute(key);
break;
}
case PageContext.SESSION_SCOPE: {
request.getSession().removeAttribute(key);
break;
}
case PageContext.REQUEST_SCOPE:
request.removeAttribute(key);
break;
default: {
throw new RuntimeException("Unknown scope:" + scope);
}
}
}
protected static String getStringParameter(HttpServletRequest request, String name) {
String s = request.getParameter(name);
if (s == null)
throw new RuntimeException("Parameter " + name + " is not set.");
return s;
}
protected static int getIntParameter(HttpServletRequest request, String name) {
return Integer.parseInt(getStringParameter(request, name));
}
protected String getErrorPageForward() {
return "ErrorPage";
}
protected String getUserId(HttpServletRequest req) {
return (String) req.getSession().getAttribute(BEAN_USER_ID);
}
protected void setUserId(HttpServletRequest req, String userId) {
req.getSession().setAttribute(BEAN_USER_ID, userId);
}
/**
* Often needed by different packages Return a time string in form of DD MMM
* YYYY (23 FEB 2002).
*/
public static String makeDateStringLong(long time) {
Date date = new Date(time);
return itoa(date.day) + " " + MONTH[date.month] + " " + date.year;
}
/**
* Often needed by different packages Return a time string in form of DD MMM
* YY (23 FEB 02).
*/
public static String makeDateString(long time) {
Date date = new Date(time);
int minus = date.year > 2000 ? 2000 : 1900;
return itoa(date.day) + " " + MONTH[date.month] + " " + itoa(date.year - minus);
}
/**
* Returns a short digital date string (23.02.02).
*
* @param time
* @return
*/
public static String makeDigitalDateStringShort(long time) {
Date date = new Date(time);
return itoa(date.day) + "." + itoa(date.month) + "." + itoa(date.year).substring(2);
}
/**
* Returns a digital time string (23.02.2002).
*
* @param time
* @return
*/
public static String makeDigitalDateString(long time) {
Date date = new Date(time);
return itoa(date.day) + "." + itoa(date.month) + "." + itoa(date.year);
}
/**
* Often needed by different packages Return a time string in form of hh:mm.
*/
protected static String makeTimeString(long time) {
Date date = new Date(time);
return itoa(date.hour) + ":" + itoa(date.min);
}
/**
* Converts an integer number in a String with given number of chars; fills
* in zeros if needed from the left side. Example: itoa(23, 4) -> 0023.
*/
public static String itoa(int i, int limit) {
String a = "" + i;
if (a.length() < limit)
a = "0" + a;
return a;
}
/**
* Calls itoa(i,2);
*/
public static String itoa(int i) {
return itoa(i, 2);
}
protected static String makeSizeString(int size) {
String bytes = "B";
if (size > 1024) {
size /= 1024;
bytes = "kB";
}
if (size > 1024) {
size /= 1024;
bytes = "Mb";
}
if (size > 1024) {
size /= 1024;
bytes = "Gb";
}
return "" + size + " " + bytes;
}
protected String throwableToStrackTrace(Throwable t) {
StringWriter s = new StringWriter();
PrintWriter p = new PrintWriter(s);
t.printStackTrace(p);
return s.toString();
}
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