com.viaoa.web.server.OASession Maven / Gradle / Ivy
/* Copyright 1999 Vince Via [email protected] 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.viaoa.web.server;
import java.lang.ref.WeakReference;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Logger;
import javax.servlet.http.*;
import com.viaoa.util.*;
import com.viaoa.web.html.form.OAForm;
/**
* Object used by one user session.
*
* @see OAApplication#createSession()
*/
public class OASession extends OABase {
private static final long serialVersionUID = 1L;
private static Logger LOG = Logger.getLogger(OASession.class.getName());
protected OAApplication application;
protected transient WeakReference wrefRequest; // set by oaform.jsp
protected transient WeakReference wrefResponse;
protected transient ArrayList alBreadCrumbForm = new ArrayList();
protected transient final ArrayList alForm = new ArrayList();
protected transient final HashMap hmForm = new HashMap<>();
protected OAForm currentForm;
private TimeZone timeZone;
private int jsLibrary = OAApplication.JSLibrary_JQueryUI;
/**
* set the preferred js library to use.
*
* @param type
* see {@link OAApplication#JSLibrary_JQueryUI} {@link OAApplication#JSLibrary_Bootstrap}
*/
public void setDefaultJsLibrary(int type) {
this.jsLibrary = type;
}
public int getDefaultJsLibrary() {
if (this.jsLibrary != 0 || getApplication() == null) return this.jsLibrary;
return getApplication().getDefaultJsLibrary();
}
public OASession() {
}
public void removeAll() {
super.removeAll();
synchronized (alForm) {
alForm.clear();
hmForm.clear();
}
alBreadCrumbForm.clear();
}
public void setApplication(OAApplication app) {
this.application = app;
}
public OAApplication getApplication() {
return application;
}
public OAForm getCurrentForm() {
return currentForm;
}
public void setCurrentForm(OAForm f) {
currentForm = f;
setCurrentBreadCrumbForm(f);
}
/**
* This can be used to find the return to page/form.
*/
public OAForm getPreviousForm() {
if (currentForm == null) return null;
int x = alBreadCrumbForm.size();
if (x == 1) return null;
return alBreadCrumbForm.get(x - 2);
}
public OAForm getReturnForm() {
return getPreviousForm();
}
public void setCurrentBreadCrumbForm(OAForm f) {
int x = alBreadCrumbForm.indexOf(f);
if (x < 0) alBreadCrumbForm.add(f);
else {
while (alBreadCrumbForm.size() > (x + 1)) {
alBreadCrumbForm.remove(x + 1);
}
}
}
public void clearBreadCrumbForms() {
alBreadCrumbForm.clear();
}
public OAForm[] getBreadCrumbForms() {
return (OAForm[]) alBreadCrumbForm.toArray(new OAForm[alBreadCrumbForm.size()]);
}
public OAForm createForm(String id) {
removeForm(getForm(id));
OAForm f = new OAForm(id, null);
addForm(f);
return f;
}
public OAForm createForm(String id, String page) {
removeForm(getForm(id));
OAForm f = new OAForm(id, page);
addForm(f);
return f;
}
/**
* Add the new form for the current request page.
*/
public OAForm createRequestForm(String id, String page) {
OAForm form = new OAForm(id, page);
addForm(form);
setCurrentForm(form);
HttpServletRequest req = getRequest();
if (req != null && req.getParameterMap().containsKey("oadebug")) {
form.setDebug(!form.getDebug());
}
return form;
}
public OAForm createRequestForm(String id) {
OAForm form = new OAForm(id);
HttpServletRequest req = getRequest();
if (req != null) {
/*qqqqqqqqqqqqq
req.getRequestURL();
form.setUrl(url);
*/
}
addForm(form);
setCurrentForm(form);
if (req != null && req.getParameterMap().containsKey("oadebug")) {
form.setDebug(!form.getDebug());
}
return form;
}
/**
* Add the new form for the current request page.
*/
public void addRequestForm(OAForm form) {
if (form == null) return;
addForm(form);
setCurrentForm(form);
HttpServletRequest req = getRequest();
if (req != null && req.getParameterMap().containsKey("oadebug")) {
form.setDebug(!form.getDebug());
}
}
public void addForm(OAForm form) {
if (form == null) return;
String id = form.getId();
if (id == null) return;
if (OAString.isEmpty(form.getUrl())) {
HttpServletRequest req = getRequest();
if (req != null) {
String s = req.getServletPath();
if (s.length() > 1) {
if (s.charAt(0) == '/') s = s.substring(1);
form.setUrl(s);
}
}
}
OAForm f = getForm(id);
if (f != null) {
LOG.fine("replacing form, id=" + id + ", from=" + f + ", to=" + form);
removeForm(f);
}
synchronized (alForm) {
alForm.add(form);
hmForm.put(id, form);
}
form.setSession(this);
form.setParent(this);
}
public OAForm getForm(String id) {
if (id == null) return null;
OAForm form;
synchronized (alForm) {
form = hmForm.get(id);
if (form != null) {
for (OAForm fx : alForm) {
if (id.equalsIgnoreCase(fx.getId())) {
form = fx;
break;
}
}
}
}
return form;
}
public OAForm getForm(OAForm form) {
if (form == null) return null;
if (alForm.indexOf(form) >= 0) return form;
OAForm f = getForm(form.getId());
return f;
}
public void removeForm(OAForm form) {
if (form != null) {
synchronized (alForm) {
if (alForm.remove(form)) {
String id = form.getId();
if (id != null) hmForm.remove(id);
}
}
}
}
/**
* Get the form for the current request page.
*/
public OAForm getRequestForm(String id) {
OAForm form = getForm(id);
if (form != null) {
HttpServletRequest req = getRequest();
if (req != null) {
if (req.getParameterMap().containsKey("oadebug")) {
form.setDebug(!form.getDebug());
}
if (req.getParameterMap().containsKey("oareset")) {
return null;
}
}
setCurrentForm(form);
}
return form;
}
public HttpServletRequest getRequest() {
if (wrefRequest == null) return null;
HttpServletRequest req = wrefRequest.get();
return req;
}
/** set by oabeans.jsp */
public void setRequest(HttpServletRequest r) {
if (r == null) wrefRequest = null;
else wrefRequest = new WeakReference(r);
}
/** set by oabeans.jsp */
public HttpServletResponse getResponse() {
if (wrefResponse == null) return null;
HttpServletResponse res = wrefResponse.get();
return res;
}
/** set by oabeans.jsp */
public void setResponse(HttpServletResponse r) {
if (r == null) wrefResponse = null;
else wrefResponse = new WeakReference(r);
}
/** For this to work oaheader.jsp needs to call setResponse() & setRequest() */
public void putCookie(String name, String value) {
setCookie(name, value);
}
public void putCookie(String name, int x) {
setCookie(name, x + "");
}
/**
* For this to work oaheader.jsp needs to call setResponse() & setRequest(). Uses
* Servlet.Response to create a cookie. MaxAge is set to max.
*/
public void setCookie(String name, String value) {
HttpServletResponse resp = getResponse();
if (resp == null) return;
Cookie c = new Cookie(name, value);
c.setMaxAge(Integer.MAX_VALUE);
resp.addCookie(c);
}
/**
* uses Servlet.Request to get a cookie. For this to work oaform.jsp & oabeans.jsp need to call
* setResponse() & setRequest()
*/
public String getCookie(String name) {
HttpServletRequest req = getRequest();
if (req == null) return null;
Cookie[] cookies = req.getCookies();
for (int i = 0; i < cookies.length; i++) {
if (cookies[i].getName().equals(name)) return cookies[i].getValue();
}
return null;
}
/** same as calling request.getHeader("User-Agent") */
public String getBrowserName() {
HttpServletRequest req = getRequest();
if (req == null) return null;
return req.getHeader("User-Agent");
}
// javascript data sent from browser (see OAForm)
private String browserDate; // js Date.toString() EEE MMM dd yyyy '00:00:00' 'GMT'Z '('z')'
private int browserRawTzOffset; // in minutes
private boolean browserSupportsDST;
private String browserAcceptLanguage;
public void setBrowserInfo(String date, int rawTzOffset, boolean bSupportsDST, String acceptLanguage) {
if (rawTzOffset != browserRawTzOffset || bSupportsDST != browserSupportsDST) {
timeZone = null;
}
this.browserDate = date;
this.browserRawTzOffset = rawTzOffset;
this.browserSupportsDST = bSupportsDST;
this.browserAcceptLanguage = acceptLanguage;
}
private final ConcurrentHashMap hmTzDst = new ConcurrentHashMap<>();
private final ConcurrentHashMap hmTzNoDst = new ConcurrentHashMap<>();
public TimeZone getBrowserTimeZone() {
if (timeZone != null) return timeZone;
final int msRawTzOffset = -(browserRawTzOffset * 60 * 1000);
if (browserSupportsDST) {
timeZone = hmTzDst.get(msRawTzOffset);
}
else {
timeZone = hmTzNoDst.get(msRawTzOffset);
}
if (timeZone != null) return timeZone;
String[] ss = TimeZone.getAvailableIDs(msRawTzOffset);
if (ss != null && ss.length > 0) {
TimeZone tz = null;
for (int i = 0; ss != null && i < ss.length; i++) {
tz = TimeZone.getTimeZone(ss[i]);
if (tz.useDaylightTime() == browserSupportsDST) {
timeZone = tz;
break;
}
if (tz != null) timeZone = tz; // fallback
}
}
if (timeZone != null) {
if (browserSupportsDST) {
hmTzDst.put(msRawTzOffset, timeZone);
}
else {
hmTzNoDst.put(msRawTzOffset, timeZone);
}
}
return timeZone;
}
protected OADateTime dtCreated;
protected String sessionId;
protected OADateTime dtLastAccessed;
protected int maxInactiveSeconds;
public OADateTime getCreated() {
return dtCreated;
}
public String getSessionId() {
return sessionId;
}
public OADateTime getLastAccessed() {
return dtLastAccessed;
}
public int getMaxInactiveSeconds() {
return maxInactiveSeconds;
}
protected void update(HttpSession session) {
long ts = session.getCreationTime();
this.dtCreated = new OADateTime(ts);
this.sessionId = session.getId();
long tsLast = session.getLastAccessedTime();
this.dtLastAccessed = new OADateTime(tsLast);
this.maxInactiveSeconds = session.getMaxInactiveInterval();
}
}
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