private ErrorPage createErrorPage(final ErrorPageModel model) {
NullArgumentException.validateNotNull(model, "model");
NullArgumentException.validateNotNull(model.getLocation(), "model#location");
NullArgumentException.validateNotNull(model.getError(), "model#error");
final ErrorPage errorPage = new ErrorPage();
errorPage.setLocation(model.getLocation());
final Integer errorCode = parseErrorCode(model.getError());
if (errorCode != null) {
errorPage.setErrorCode(errorCode);
} else {
errorPage.setExceptionType(model.getError());
}
return errorPage;
}
public void addToContext(Context context) {
Assert.state(
this.nativePage != null,
"Neither Tomcat 7 nor 8 detected so no native error page exists");
if (ClassUtils.isPresent("org.apache.catalina.deploy.ErrorPage", null)) {
org.apache.catalina.deploy.ErrorPage errorPage =
(org.apache.catalina.deploy.ErrorPage) this.nativePage;
errorPage.setLocation(this.location);
errorPage.setErrorCode(this.errorCode);
errorPage.setExceptionType(this.exceptionType);
context.addErrorPage(errorPage);
} else {
callMethod(this.nativePage, "setLocation", this.location, String.class);
callMethod(this.nativePage, "setErrorCode", this.errorCode, int.class);
callMethod(this.nativePage, "setExceptionType", this.exceptionType, String.class);
callMethod(context, "addErrorPage", this.nativePage, this.nativePage.getClass());
}
}
