master_loader_callbacks.h

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// Copyright (C) 2012-2015 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/.
 
#ifndef MASTER_LOADER_CALLBACKS_H
#define MASTER_LOADER_CALLBACKS_H
 
#include <exceptions/exceptions.h>
 
#include <string>
#include <boost/function.hpp>
#include <boost/shared_ptr.hpp>
 
namespace isc {
namespace dns {
class Name;
class RRClass;
class RRType;
class RRTTL;
namespace rdata {
class Rdata;
typedef boost::shared_ptr<Rdata> RdataPtr;
}
 
typedef boost::function<void(const Name& name, const RRClass& rrclass,
                             const RRType& rrtype, const RRTTL& rrttl,
                             const rdata::RdataPtr& rdata)>
    AddRRCallback;
 
class MasterLoaderCallbacks {
public:
    typedef boost::function<void(const std::string& source_name,
                                 size_t source_line,
                                 const std::string& reason)> IssueCallback;
 
    MasterLoaderCallbacks(const IssueCallback& error,
                          const IssueCallback& warning) :
        error_(error),
        warning_(warning)
    {
        if (error_.empty() || warning_.empty()) {
            isc_throw(isc::InvalidParameter,
                      "Empty function passed as callback");
        }
    }
 
    void error(const std::string& source_name, size_t source_line,
               const std::string& reason) const
    {
        error_(source_name, source_line, reason);
    }
 
    void warning(const std::string& source_name, size_t source_line,
                 const std::string& reason) const
    {
        warning_(source_name, source_line, reason);
    }
 
    static MasterLoaderCallbacks getNullCallbacks();
 
private:
    const IssueCallback error_, warning_;
};
 
}
}
 
#endif // MASTER_LOADER_CALLBACKS_H