/**
* Return the application Filter we are configured for.
*
* @exception ClassCastException if the specified class does not implement the <code>
* javax.servlet.Filter</code> interface
* @exception ClassNotFoundException if the filter class cannot be found
* @exception IllegalAccessException if the filter class cannot be publicly instantiated
* @exception InstantiationException if an exception occurs while instantiating the filter object
* @exception ServletException if thrown by the filter's init() method
*/
Filter getFilter()
throws ClassCastException, ClassNotFoundException, IllegalAccessException,
InstantiationException, ServletException {
// Return the existing filter instance, if any
if (this.filter != null) return (this.filter);
// Identify the class loader we will be using
String filterClass = filterDef.getFilterClass();
ClassLoader classLoader = null;
if (filterClass.startsWith("org.apache.catalina."))
classLoader = this.getClass().getClassLoader();
else classLoader = context.getLoader().getClassLoader();
ClassLoader oldCtxClassLoader = Thread.currentThread().getContextClassLoader();
// Instantiate a new instance of this filter and return it
Class clazz = classLoader.loadClass(filterClass);
this.filter = (Filter) clazz.newInstance();
if (context instanceof StandardContext && ((StandardContext) context).getSwallowOutput()) {
try {
SystemLogHandler.startCapture();
filter.init(this);
} finally {
String log = SystemLogHandler.stopCapture();
if (log != null && log.length() > 0) {
getServletContext().log(log);
}
}
} else {
filter.init(this);
}
return (this.filter);
}
private static FilterInfo getFilterInfo(FilterDef fd) {
FilterInfo fi = new FilterInfo();
fi.setFilterName(fd.getFilterName());
fi.setFilterClass(fd.getFilterClass());
fi.setFilterDesc(fd.getDescription());
return fi;
}
/** Return a String representation of this object. */
public String toString() {
StringBuffer sb = new StringBuffer("ApplicationFilterConfig[");
sb.append("name=");
sb.append(filterDef.getFilterName());
sb.append(", filterClass=");
sb.append(filterDef.getFilterClass());
sb.append("]");
return (sb.toString());
}
/**
* Return the application Filter we are configured for.
*
* @exception ClassCastException if the specified class does not implement the <code>
* javax.servlet.Filter</code> interface
* @exception ClassNotFoundException if the filter class cannot be found
* @exception IllegalAccessException if the filter class cannot be publicly instantiated
* @exception InstantiationException if an exception occurs while instantiating the filter object
* @exception ServletException if thrown by the filter's init() method
* @throws NamingException
* @throws InvocationTargetException
*/
Filter getFilter()
throws ClassCastException, ClassNotFoundException, IllegalAccessException,
InstantiationException, ServletException, InvocationTargetException, NamingException {
// Return the existing filter instance, if any
if (this.filter != null) return (this.filter);
// Identify the class loader we will be using
String filterClass = filterDef.getFilterClass();
this.filter = (Filter) getInstanceManager().newInstance(filterClass);
initFilter();
return (this.filter);
}
/** Return the class of the filter we are configuring. */
public String getFilterClass() {
return filterDef.getFilterClass();
}