log4cplus

从零开始完整学习全基因组测序数据分析: Trimmomatic、SOAPnuke、sickle和seqtk的比较

由 流过昼夜 提交于 2021-02-13 06:40:16
在第4节开始之前，先来一段插曲。在上一节中，我们说到可以使用Trimmomatic、sickle、seqtk或者SOAPnuke对fastq数据进行过滤。那么也许你会好奇，那他们都有什么特点，都一样好吗或是有哪些差异之处？正所谓，工欲善其事必先利其器，所以这篇文章将会与你一起来解开这几个问题。 因为Trimmomatic的安装已经在 第3节 数据质控 中说的比较清楚了，这里就不再赘述。那么， 先说SOAPnuke的安装，你有两种方式： 第一，确保你的系统中有automake。由于SOAPnuke还使用了多个第三方的c++ 程序库，包括 但不限于 ： boost，log4cplus和openssl。因此，需要在你的系统中先安装好这几个库，并修改SOAPnuke代码包的CMakeLists.txt，重新指定里面这几个程序包的路径。同时还需要把上述包的include目录链接到CMakeList.txt中指定的目录（或者你也可以修改到其他目录）下。此外，如果上述三个包的静态库没在默认路径下，那么。。。你还得找到它们，然后修改路径，并涉及到少量代码的修改，再进行编译，然后祈祷。。。至于第三方程序库的安装方法都可以在网上找到。但特别指出一点，建议使用源码安装（特别是log4cplus），防止有些包默认不产生静态链接库。另外，版本不对也会报各种error，包括编译器的error

JFileChooser causes log4cplus:ERROR No appenders could be found for logger (AdSyncNamespace)

由 ￡可爱￡侵袭症＋ 提交于 2020-01-05 08:22:11
问题 Searching for a solution to a problem I am having with JFileChooser. It is the exact same problem as the one found here: https://forums.oracle.com/thread/2532293. If someone could give me a solution and explanation for the error that would be awesome. 来源： https://stackoverflow.com/questions/18091407/jfilechooser-causes-log4cpluserror-no-appenders-could-be-found-for-logger-adsy

C++ Logging Library Setup

由 时光总嘲笑我的痴心妄想 提交于 2020-01-01 04:55:30
问题 I've been trying for about 2 weeks now to get a logging library to work with. I've tried Log4cxx, Log4cpp, log4cplus and boost.log. The problem isn't that none of these work for me, it's that I can't figure out how to get them to work at all. I would really like to use log4cxx since I'm working with log4j/logback at work, but I haven't been able to get any of the libraries based on log4j to build. I've been able to build and use the boost library, but boost.log gives me all kinds of linker

C++ Project compiles as static lib, fails (linker error) as dynamic lib. why?

由 こ雲淡風輕ζ 提交于 2019-12-23 09:29:12
问题 I've a VS2008 native C++ project, that I wish to compile as a DLL. It only references one external library (log4cplus.lib), and uses its functions. (also uses log4cplus's .h files , naturally). When I try to compile my project as a static library, it succeeeds. When I try as DLL, it fails : 1>MessageWriter.obj : error LNK2019: unresolved external symbol "public: static class log4cplus::Logger __cdecl log4cplus::Logger::getInstance(class std::basic_string<wchar_t,struct std::char_traits<wchar

How do I send log4cplus appender output to a memory buffer?

由 不问归期 提交于 2019-12-23 05:52:10
问题 I'm writing a logger that works for both managed and unmanaged code so I'm using log4cplus under the Test Driven Development (TDD) paradigm with Visual Studio 2013 Unmanaged Code Unit Tests under Test Explorer. Trouble is, I can't figure out how to send log4cplus output to the Assert statements. How do I send log4cplus output to a memory buffer that I can access in the Unit Tests? If I have to write a customized appender , what would that look like? 回答1: You would have to create your own

Logger::getInstance causing bad_alloc exception in log4cplus

由 折月煮酒 提交于 2019-12-23 03:51:34
问题 I'm attempting to implement logging in a c++ application using log4cplus. I'm able to successfully build/link (I added the log4cplus.lib to my additional libs and copied the log4cplus.dll to the build/outdir) When I run my application, I get the following exception when it executes my Logger::getInstance call: Unhandled exception at 0x75cad36f in LogTesterConsole.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0013ed8c.. I've tried placing the call outside my main() routine

Write logs in html file using log4cplus in C++ linux

由 空扰寡人 提交于 2019-12-22 09:53:14
问题 We are using Log4cplus to generate logs in our Linux based home appliance. These logs are currently available on the home appliance on which a web server is running. We also show this logfile through a web browser. However since the log file is text (i.e. not in html format), the file is not formatted and it is difficult to view each log separately. We would like to view these logs through the web server with logs formatted at html. log4j supports output logs in html format, however we have

Does log4cplus support xml configuration file and conditional logging?

由 十年热恋 提交于 2019-12-21 06:19:46
问题 I want to use MDC to set a context in my program, and then be able to set a filter in the config file to only show messages from a logger in a certain context. MDC mdc; mdc.put("fieldName", "foo"); LOG4CPLUS_DEBUG(log, "ABC"); mdc.put("fieldName", "bar"); LOG4CPLUS_DEBUG(log, "XYZ"); I only want to print from log when "fieldName" is "bar" , so only "XYZ" should be printed to my log. In log4j this can be done using the XML format config file with filters. Can log4cplus use an XML config file?

How do I add a custom filter in log4cplus?

由 我怕爱的太早我们不能终老 提交于 2019-12-19 04:20:23
问题 This is a followup to this question on conditional logging. I found examples in the log4cplus test directory of how to configure filters in the properties file (so using the XML is unnecessary) I have created my own filter but I am having trouble using it. Here are the changes I made: In spi/filter.h: class LOG4CPLUS_EXPORT InstructionNumberFilter : public Filter { public: // ctors InstructionNumberFilter(); InstructionNumberFilter(const log4cplus::helpers::Properties& p); /** * Returns {

Is Log4cplus RollingFileAppender Asynchronous or not

由 不想你离开。 提交于 2019-12-10 10:24:33
问题 I'm going to add Log4cplus for our application. Our application is written in C++ and it is multithreaded. I want to use the Log4Cplus RollingFileAppender for the same. I know Log4Cplus was derived from Java Log4j. As I didn't know Java well, I have no idea on Log4j. My questions are as follows, Is Log4Cplus RollingFileAppender asynchronous or not ?. Then what is the use of AsyncAppender ? Is RollingFileAppender thread safe ? Do I need to handle code for thread safety with RollingFileAppender
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