From 78bb3387b15d15d766fb5d17a99612f0480f2bee Mon Sep 17 00:00:00 2001
From: Adrian Kummerländer
Date: Thu, 5 Jun 2014 20:44:26 +0200
Subject: Implemented ErrorMultiplexer as primary error handler *
 ErrorMultiplexer is derived from both xercesc::ErrorHandler and
 xalan::ProblemListener * registers itself as XalanTransformer's ErrorHandler
 and ProblemListener * distributes captured errors and warnings to all
 registered ErrorMultiplexer::Receiver instances ** ErrorCapacitor implements
 the ErrorMultiplexer::Receiver interface and as such registers itself in a
 given ErrorMultiplexer instance ** ErrorMultiplexer reduces the different
 xalan and xercesc internal error classifications into either warnings or
 errors * this was implemented to make it possible to easily differentiate
 between warnings and errors ** previously warnings were treated as errors **
 ErrorCapacitor ignores warnings and only captures errors ** WarningCapacitor
 will be implemented to handle warnings during XSLT processing

---
 src/support/error/error_capacitor.cc | 37 ++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 src/support/error/error_capacitor.cc

(limited to 'src/support/error/error_capacitor.cc')

diff --git a/src/support/error/error_capacitor.cc b/src/support/error/error_capacitor.cc
new file mode 100644
index 0000000..58cfb81
--- /dev/null
+++ b/src/support/error/error_capacitor.cc
@@ -0,0 +1,37 @@
+#include "error_capacitor.h"
+
+namespace InputXSLT {
+
+ErrorCapacitor::ErrorCapacitor(ErrorMultiplexer* multiplexer):
+	multiplexer_(multiplexer),
+	error_cache_(new error_cache()) {
+	this->multiplexer_->connectReceiver(this);
+}
+
+ErrorCapacitor::~ErrorCapacitor() {
+	this->multiplexer_->disconnectReceiver(this);
+}
+
+void ErrorCapacitor::discharge() {
+	if ( !this->error_cache_->empty() ) {
+		throw exception(std::move(this->error_cache_));
+	}
+}
+
+void ErrorCapacitor::receive(
+	const ErrorMultiplexer::ErrorType type,
+	const std::string& message
+) {
+	if ( type == ErrorMultiplexer::ErrorType::Error ) {
+		this->error_cache_->emplace_back(message);
+	}
+}
+
+ErrorCapacitor::exception::exception(error_cache_ptr ptr):
+	error_cache_(std::move(ptr)) { }
+
+auto ErrorCapacitor::exception::getCachedErrors() const -> const error_cache* {
+	return this->error_cache_.get();
+}
+
+}
-- 
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