/**
* @param context
* @return
*/
protected ExpressionContext createELContext(FacesContext context) {
ExpressionContext elContext = new ExpressionContext();
elContext.put("FS", File.separator);
elContext.put("userHome", System.getProperty("user.dir"));
elContext.put("appHome", applicationHome.getPath());
ServletContext servletContext = (ServletContext) context.getExternalContext().getContext();
String webRoot = servletContext.getRealPath("/WEB-INF");
if (webRoot != null) {
elContext.put("webRoot", webRoot);
}
return elContext;
}
/** @see java.util.HashMap#containsKey(java.lang.Object) */
@Override
public boolean containsKey(Object key) {
if (super.containsKey(key)) {
return true;
} else {
return parent != null && parent.containsKey(key);
}
}
/** @see java.util.HashMap#get(java.lang.Object) */
@Override
public Object get(Object key) {
Object value = null;
if (super.containsKey(key)) {
value = super.get(key);
} else if (parent != null) {
value = parent.get(key);
}
if (value instanceof ValueBinding) {
value = ((ValueBinding<?>) value).getValue();
}
return value;
}
/** @see java.util.HashMap#keySet() */
@Override
public Set<String> keySet() {
Set<String> keySet = super.keySet();
if (parent != null) {
keySet = new HashSet<String>(keySet);
Set<String> parentSet = parent.keySet();
for (String key : parentSet) {
if (!keySet.contains(key)) {
keySet.add(key);
}
}
}
return keySet;
}
/** @see java.util.HashMap#isEmpty() */
@Override
public boolean isEmpty() {
return super.isEmpty() && (parent == null || parent.isEmpty());
}