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// **********************************************************************
//
// Copyright (c) 2003-2012 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICE_LOGGER_UTIL_H
#define ICE_LOGGER_UTIL_H
#include <Ice/Logger.h>
#include <Ice/CommunicatorF.h>
#include <Ice/Plugin.h>
namespace Ice
{
class ICE_API LoggerOutputBase : private IceUtil::noncopyable
{
public:
std::string str() const;
std::ostringstream& __str(); // For internal use only. Don't use in your code.
private:
std::ostringstream _str;
};
template<typename T>
inline LoggerOutputBase&
operator<<(LoggerOutputBase& out, const T& val)
{
out.__str() << val;
return out;
}
template<class Y>
LoggerOutputBase&
operator<<(LoggerOutputBase& os, ::IceInternal::ProxyHandle<Y> p)
{
return os << (p ? p->ice_toString() : "");
}
ICE_API LoggerOutputBase& operator<<(LoggerOutputBase&, std::ios_base& (*)(std::ios_base&));
ICE_API LoggerOutputBase& operator<<(LoggerOutputBase&, const ::std::exception& ex);
template<class L, class LPtr, void (L::*output)(const std::string&)>
class LoggerOutput : public LoggerOutputBase
{
public:
inline LoggerOutput(const LPtr& lptr) :
_logger(lptr)
{}
inline ~LoggerOutput()
{
flush();
}
inline void flush()
{
std::string s = __str().str();
if(!s.empty())
{
L& ref = *_logger;
(ref.*output)(s);
}
__str().str("");
}
private:
LPtr _logger;
};
typedef LoggerOutput<Logger, LoggerPtr, &Logger::print> Print;
typedef LoggerOutput<Logger, LoggerPtr, &Logger::warning> Warning;
typedef LoggerOutput<Logger, LoggerPtr, &Logger::error> Error;
class ICE_API Trace : public LoggerOutputBase
{
public:
Trace(const LoggerPtr&, const std::string&);
~Trace();
void flush();
private:
LoggerPtr _logger;
std::string _category;
};
//
// A special plug-in that installs a logger during a communicator's initialization.
// Both initialize and destroy are no-op. See Ice::InitializationData.
//
class ICE_API LoggerPlugin : public Ice::Plugin
{
public:
LoggerPlugin(const CommunicatorPtr& communicator, const LoggerPtr&);
virtual void initialize();
virtual void destroy();
};
}
#endif
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