®Duarte Blog

How extend the LZMA with C/C++ and implement customized softwares using the 7Zip library. First of all, what is LZMA SDK? LZMA SDK is a package with all you need to extend and developing your own application without recreate the wheel! It is complete with documentation, samples, interfaces, libraries and tools to help in the use of compaction  algorithm LZMA in custom applications. What languages are supported by the LZMA SDK? The SDK supports the following languages C, C++, C# and Java. [ + ] Licence How the own site said, " LZMA SDK  is placed in the  public domain. " and goes beyond " Anyone is free to copy, modify, publish, use, compile, sell, or distribute the original LZMA SDK code, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means. " I understand, that you can use library for commercial or non commercial purpose, without restrictions. Enviroment of development I will use ...

The problem! This week I tried to create a new wiki page to describe some information about the project I've been worked and I've written on sharepoint, because this is the corporative tool at the company where I work. For my surprise the work didn't was very productive and I was needing to use all my background in write HTML code, so I think there is something wrong, this was very technical and I went talking with a friend about that, suddenly I had discovered the real problem. My sharepoint didn't show the rich text editor! Why? I did one search on internet and didn't find the root cause, but some suspects! But what really resolved was change the IE version! Resolution How I was using the 64 bits IE version: I saw many comments about the 64 bits IE version didn't work well with the sharepoint, but no one said the root reason! However I just tried this solution and I had success! How this solution didn't bring any problem, so I passed ...

I have been worked with Maven [+] some time and I can to affirm that is one the best tools to the management of software projects and comprehension, incredibly powerfull, versatile, but far from unanimous among developers. I like to show that is a personal opinion and I respect all other points of view. This post was born from the necessity of install Maven on my developer environment, that has a kind of proxy (NTLM), because until then I saw situations where only was necessary configure the settings.xml file, like described on Maven documentation  (Maven configurando proxy) . Error Message The error message below was constantly displayed when I tried to run the mvn clean install command in the project: C:Dev\MavenTest> mvn clean install [ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 or one of its dependencies could not be resolved: Failed to read artifa escriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.4.1: Could not transfer artifa...

In the rush of a day's work with several projects going on in parallel, it is not hard to come across someone asking you for help (support) for something you developed recently, but hasn't make the slightest idea how use this program or utility currently. I don't know if it happens with you, but with me it happens much. Many times when I do the review of something I had developed and passed a little time without see, I stay surprised with it, sometimes as a positive surprise and others not so much! Each one do the organization the way it believed to be more productive, but as I usually create many tools for myself and sometimes I share it with other staff members, so it's necessary leave a document for quick reference in templates README  [+]  and it ends up helping in the process of rescue the subject and even as a user manual. The content of a README file In my point of view, a file as this can have anything what is necessary to help in the development an...

Como utilizar a LZMA em C para encapsular as chamadas ao 7Zip em minha aplicação. Primeiramente o que é a LZMA SDK? LZMA SDK é o kit de desenvolvimento que prove documentação, exemplos, interfaces, bibliotecas e ferramentas para o uso do algoritmo de compactação LZMA em aplicações customizadas. Quais são os suportes da LZMA SDK? O SDK dá suporte para as seguinte linguagens C, C++, C# e Java. [ + ] Licença Como o próprio site diz, " LZMA SDK  is placed in the  public domain. " e vai mais alem " Anyone is free to copy, modify, publish, use, compile, sell, or distribute the original LZMA SDK code, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means. " Sendo assim pode ficar tranquilo para utilizar a biblioteca tanto comercialmente como não comercialmente, pois não existem restrições. Ambiente de desenvolvimento Vou utilizar o Microsoft Visual Studio 2010 e SDK baixada diretamente d...

Eu já venho trabalhando com o Maven [ + ] a algum tempo e posso afirmar que é uma das melhores ferramentas de gerenciamento de projetos de software e compreenssão, incrivelmente poderosa e versátil, mas longe de ser unanimidade entre os desenvolvedores. Gostaria de deixar bem claro que essa é uma opinião pessoal e eu respeito todos os outros pontos de vista. Este post nasceu da necessidade de realizar a instalação do Maven num ambiente com esse tipo de proxy (NTLM), pois até então eu apenas havia me deparado com situações onde apenas uma configuração no arquivo de settings.xml  como descrito na documentação do Maven bastava (Maven configurando proxy) . Mensagem de Erro The error message below was constantly displayed when I tryed to run the mvn install command in the project: C:Dev\MavenTest> mvn clean install [ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 or one of its dependencies could not be resolved: Failed to read artifa escriptor for org.ap...

Apache Sling  [+] Segundo o site o Apache Sling é um framework inovador e a sua intenção é trazer de volta a diversão para o desenvolvimento web. Os cinco principais pontos Um framework baseado em webservices REST Conteúdo interativo, utilizando um repositório JCR de conteúdo Utiliza um motor OSGI Processa script em múltiplas linguagens (JPS, server-side javascript, Scala e etc) É um projeto Open Source da Apache Exemplos de Uso Wiki Podemos construir um sistema de Wiki com o Apache Sling. Cada página é um nó (com nós filhos opcionais) no repositório. Quando uma página é requisitada, o respectivo nó é acessado e através de um componente de aplicação a página é renderizada. Conclusão No Apache Sling tudo é conteúdo e com uma pequena porção código, sendo esse código de mais alto nível é possível construir aplicações web complexas que fazem uso de webservices, jobs e outras funções semelhantes a um servidor de aplicação com menos complicação e esforço. ...