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// Copyright (C) 2011-2022 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <log/log_formatter.h>
#include <cassert>
#ifdef ENABLE_LOGGER_CHECKS
#include <iostream>
#endif
using namespace std;
using namespace boost;
namespace isc {
namespace log {
void
replacePlaceholder(std::string& message, const string& arg,
const unsigned placeholder) {
const string mark("%" + lexical_cast<string>(placeholder));
size_t pos(message.find(mark));
if (pos != string::npos) {
do {
message.replace(pos, mark.size(), arg);
pos = message.find(mark, pos + arg.size());
} while (pos != string::npos);
} else {
#ifdef ENABLE_LOGGER_CHECKS
// We're missing the placeholder, so throw an exception
isc_throw(MismatchedPlaceholders, "Missing logger placeholder '" << mark << "' for value '"
<< arg << "' in message '"
<< message << "'");
#else
// We're missing the placeholder, so add some complain
message.append(" @@Missing logger placeholder '" + mark + "' for value '" + arg + "'@@");
#endif /* ENABLE_LOGGER_CHECKS */
}
}
void
checkExcessPlaceholders(std::string& message,
unsigned int placeholder) {
const string mark("%" + lexical_cast<string>(placeholder));
const size_t pos(message.find(mark));
if (pos != string::npos) {
// Excess placeholders were found. If we enable the harsh check,
// abort it. Note: ideally we'd like to throw MismatchedPlaceholders,
// but we can't at least for now because this function is called from
// the Formatter's destructor.
#ifdef ENABLE_LOGGER_CHECKS
// Also, make sure we print the message so we can identify which
// identifier has the problem.
cerr << "Excess logger placeholder '" << mark << "' still exists in message '" << message
<< "'." << endl;
assert(false);
#else
message.append(" @@Excess logger placeholder '" + mark + "' still exists@@");
#endif /* ENABLE_LOGGER_CHECKS */
}
}
} // namespace log
} // namespace isc
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