【原创】自定义Appender类，输出DCMTK日志

就像DCMTK官方论坛说的那个问题一样：问题：自定义Appender输出DCMTK的oflog

 

DCMTK日志输出类

大家都知道：DCMTK只提供下面四个日志输出类。

FileAppender: Appends log events to a file.（将DCMTK日志输出到一个文件中）

ConsoleAppender：ConsoleAppender appends log events to STD_NAMESPACE cout or STD_NAMESPACE cerr using a layout specified by the user.（将DCMTK日志输出到控制台cmd）

log4cplus::NullAppender：Appends log events to ......(不输出，空的)

SocketAppender：Sends spi::InternalLoggingEvent objects to a remote a log server.(将该日志事件发送给远程服务器)

 

因为我需要在自己的Qt Gui项目中也输出DCMTK日志，供系统测试或者通过我项目的日志模块登记到数据库、文件中。总之我需要把DCMTK的日志模块集成到自己的Gui项目中。于是我自定义了一个GuiAppender类。

 

GuiAppender：

实现将DCMTK日志事件捕获，并将日志输出在VS2008的Debug窗口中，也可以后期供调用。

 

 

 

 

实现源码

我的GuiAppender类 源码

 

 

#ifndef GUIAPPENDER_H
#define GUIAPPENDER_H

#include "dcmtk/oflog/config.h"
#include "dcmtk/oflog/appender.h"
#include "dcmtk/oflog/helpers/property.h"
#include <sstream>
namespace log4cplus 
{

	class GuiAppender : public Appender
	{

	public:
		GuiAppender();
		GuiAppender(const log4cplus::helpers::Properties& properties, log4cplus::tstring& error);
		virtual ~GuiAppender();

		// Methods
		virtual void close();

	protected:
		virtual void append(const log4cplus::spi::InternalLoggingEvent& event);
		//声明一个ostringsteam对象
		STD_NAMESPACE ostringstream outString ;
	private:
		// Disallow copying of instances of this class
		GuiAppender(const GuiAppender&);
		GuiAppender& operator=(const GuiAppender&);

	};
} // end namespace log4cplus
#endif // GUIAPPENDER_H

 

 

#include "GuiAppender.h"
#include <string>
#include <QDebug>
#include <QString>
log4cplus::GuiAppender::GuiAppender()
{

}
log4cplus::GuiAppender::GuiAppender(const log4cplus::helpers::Properties& properties, tstring&)
: Appender(properties)
{

}

log4cplus::GuiAppender::~GuiAppender()
{

}
void
log4cplus::GuiAppender::close()
{
}

// This method does not need to be locked since it is called by
// doAppend() which performs the locking
void
log4cplus::GuiAppender::append(const spi::InternalLoggingEvent& event)
{
	//格式化输入DCMTK日志
	layout->formatAndAppend(outString, event);
	//获取DCMTK日志字符串流
	STD_NAMESPACE string m = outString.str();
	//将C++标准字符串流，转换成QString
	QString t = QString::fromStdString(m);
	//输出调试信息
	qDebug() << t;
        //清空
        outString.str("");
}

 

 

 

主程序测试。

 

 

/* 
 * 
 *  Copyright (C) 2011-2012, OFFIS e.V. 
 *  All rights reserved.  See COPYRIGHT file for details. 
 * 
 *  This software and supporting documentation were developed by 
 * 
 *    OFFIS e.V. 
 *    R&D Division Health 
 *    Escherweg 2 
 *    D-26121 Oldenburg, Germany 
 * 
 * 
 *  Module:  dcmnet 
 * 
 *  Author:  Michael Onken 
 * 
 *  Purpose: Test for move feature of the DcmSCU class 
 */ 

#include "dcmtk/config/osconfig.h"    /* make sure OS specific configuration is included first */ 
#include "dcmtk/dcmnet/diutil.h" 
#include "DcmTestSCU.h"
#include <QtGui/QApplication>
#include <QDebug>
#include "dcmtk/oflog/oflog.h"
#include "GuiAppender.h"

#define OFFIS_CONSOLE_APPLICATION "testscu" 
 
static OFLogger echoscuLogger = OFLog::getLogger("dcmtk.apps." OFFIS_CONSOLE_APPLICATION); 
 
static char rcsid[] = "$dcmtk: " OFFIS_CONSOLE_APPLICATION " v" 
  OFFIS_DCMTK_VERSION " " OFFIS_DCMTK_RELEASEDATE " $"; 
 
// our application entity title used for calling the peer machine 
#define APPLICATIONTITLE     "TEST-SCU" 
 
// host name of the peer machine  "www.dicomserver.co.uk"
#define PEERHOSTNAME         "10.3.2.84" 
 
// TCP/IP port to connect to the peer machine "11112"
#define PEERPORT 5104 
 
// application entity title of the peer machine 
#define PEERAPPLICATIONTITLE "MOVESCP" 
 
// MOVE destination AE Title 
#define MOVEAPPLICATIONTITLE "TEST-SCU" 

#define QRResponse FINDResponse
 
static Uint8 findUncompressedPC(const OFString& sopClass, 
                                DcmSCU& scu) 
{ 
  Uint8 pc; 
  pc = scu.findPresentationContextID(sopClass, UID_LittleEndianExplicitTransferSyntax); 
  if (pc == 0) 
    pc = scu.findPresentationContextID(sopClass, UID_BigEndianExplicitTransferSyntax); 
  if (pc == 0) 
    pc = scu.findPresentationContextID(sopClass, UID_LittleEndianImplicitTransferSyntax); 
  return pc; 
} 
 
// ******************************************** 
 
int main(int argc, char *argv[]) 
{ 
	QApplication a(argc, argv);	
	/* Setup DICOM connection parameters */ 
	OFLog::configure(OFLogger::DEBUG_LOG_LEVEL); 
	
	OFLOG_DEBUG(echoscuLogger, "OFLOG_DEBUG");


	/* specify log pattern */
	OFauto_ptr<log4cplus::Layout> layout(new log4cplus::PatternLayout("%D{%Y-%m-%d %H:%M:%S.%q} %5p: %m%n"));

	//建立Gui日志输出类
	log4cplus::SharedAppenderPtr guiAppender(new log4cplus::GuiAppender());
	guiAppender->setLayout(layout);
	//获取全局日志对象
	log4cplus::Logger log = log4cplus::Logger::getRoot();
	//去除所有日志输出类
	log.removeAllAppenders();
	//加入Gui输出类
	log.addAppender(guiAppender);
	//设置日志输出层
	log.setLogLevel(OFLogger::INFO_LOG_LEVEL);
	//测试输出一个error日志
	OFLOG_ERROR(log, "There are six log levels and each provides a OFLOG_level() macro");



	//继续测试，输出DCMTK C-Echo动作产生的INFO

	//后面是DCMTK的DcmNet模块中 网络通信的测试，大家不需要了解
	DcmTestSCU scu; 
	// set AE titles 
	scu.setAETitle(APPLICATIONTITLE); 
	scu.setPeerHostName(PEERHOSTNAME); 
	scu.setPeerPort(PEERPORT); 
	scu.setPeerAETitle(PEERAPPLICATIONTITLE); 
	// Use presentation context for FIND/MOVE in study root, propose all uncompressed transfer syntaxes 
	OFList<OFString> ts; 
	ts.push_back(UID_LittleEndianExplicitTransferSyntax); 
	ts.push_back(UID_BigEndianExplicitTransferSyntax); 
	ts.push_back(UID_LittleEndianImplicitTransferSyntax); 
	scu.addPresentationContext(UID_FINDStudyRootQueryRetrieveInformationModel, ts); 
	scu.addPresentationContext(UID_MOVEStudyRootQueryRetrieveInformationModel, ts); 
	scu.addPresentationContext(UID_VerificationSOPClass, ts); 

	/* Initialize network */ 
	OFCondition result = scu.initNetwork(); 
	if (result.bad()) 
	{ 
		DCMNET_ERROR("Unable to set up the network: " << result.text()); 
		return 1; 
	} 
 
	/* Negotiate Association */ 
	result = scu.negotiateAssociation(); 
	if (result.bad()) 
	{ 
		DCMNET_ERROR("Unable to negotiate association: " << result.text()); 
		return 1; 
	} 
 
	/* Let's look whether the server is listening: 
	 Assemble and send C-ECHO request 
	*/ 
	result = scu.sendECHORequest(0); 
	if (result.bad()) 
	{ 
		DCMNET_ERROR("Could not process C-ECHO with the server: " << result.text()); 
		return 1; 
	} 
 
	scu.closeAssociation(DCMSCU_RELEASE_ASSOCIATION);

	return a.exec();
}

 

 

实现结果

最终结果，将DCMTK日志输出到VS2008的Debug窗口中。

 

 

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柳北风儿

http://qimo601.iteye.com

【原创】自定义Appender类，输出DCMTK日志

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