com.sun.faces.context.flash.SessionHelper Maven / Gradle / Ivy
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package com.sun.faces.context.flash;
import java.io.Serializable;
import java.util.Map;
import javax.faces.context.ExternalContext;
import javax.servlet.http.HttpSessionActivationListener;
import javax.servlet.http.HttpSessionEvent;
class SessionHelper implements Serializable, HttpSessionActivationListener {
private static final long serialVersionUID = -4146679754778263071L;
static final String FLASH_SESSIONACTIVATIONLISTENER_ATTRIBUTE_NAME =
ELFlash.FLASH_ATTRIBUTE_NAME + "FSAL";
private static final String FLASH_INNER_MAP_KEY = ELFlash.FLASH_ATTRIBUTE_NAME + "FIM";
private boolean didPassivate;
static SessionHelper getInstance(ExternalContext extContext) {
return (SessionHelper)
extContext.getSessionMap().get(FLASH_SESSIONACTIVATIONLISTENER_ATTRIBUTE_NAME);
}
void update(ExternalContext extContext,
ELFlash flash) {
Map sessionMap = extContext.getSessionMap();
if (didPassivate) {
Map> flashInnerMap =
(Map>) sessionMap.get(FLASH_INNER_MAP_KEY);
flash.setFlashInnerMap(flashInnerMap);
didPassivate = false;
} else {
sessionMap.put(FLASH_SESSIONACTIVATIONLISTENER_ATTRIBUTE_NAME, this);
sessionMap.put(FLASH_INNER_MAP_KEY, flash.getFlashInnerMap());
}
}
void remove(ExternalContext extContext) {
Map sessionMap = extContext.getSessionMap();
sessionMap.remove(FLASH_SESSIONACTIVATIONLISTENER_ATTRIBUTE_NAME);
sessionMap.remove(FLASH_INNER_MAP_KEY);
}
@Override
public void sessionDidActivate(HttpSessionEvent hse) {
didPassivate = true;
}
@Override
public void sessionWillPassivate(HttpSessionEvent hse) {
didPassivate = true;
}
}