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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/log/Statement.h"
#include "qpid/Exception.h"
#include "qpid/DisableExceptionLogging.h"
#include <typeinfo>
#include <assert.h>
#include <string.h>
namespace qpid {
// Note on static initialization order: if an exception is constructed
// in a static constructor before disableExceptionLogging has been
// initialized, the worst that can happen is we lose an exception log
// message. Since we shouldn't be throwing a lot of exceptions during
// static construction this seems safe.
static bool disableExceptionLogging = false;
DisableExceptionLogging::DisableExceptionLogging() { disableExceptionLogging = true; }
DisableExceptionLogging::~DisableExceptionLogging() { disableExceptionLogging = false; }
Exception::Exception(const std::string& msg) throw() : message(msg) {
if (disableExceptionLogging) return;
QPID_LOG_IF(debug, !msg.empty(), "Exception constructed: " << message);
}
Exception::~Exception() throw() {}
std::string Exception::getPrefix() const { return std::string(); }
std::string Exception::getMessage() const { return message; }
namespace { const std::string COLON(": "); }
const char* Exception::what() const throw() {
// Construct the what string the first time it is needed.
if (whatStr.empty()) {
if (message.compare(0, getPrefix().size(), getPrefix()) == 0 || // Already has prefix
getPrefix().empty()) // No prefix
whatStr = message;
else
whatStr = getPrefix() + COLON + message;
}
return whatStr.c_str();
}
ClosedException::ClosedException(const std::string& msg)
: Exception(msg) {}
std::string ClosedException::getPrefix() const { return "Closed"; }
} // namespace qpid
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