Today, I saw a crawler parsing document on Nutch Wiki. I found a good PLUGIN system with a design in it. This is the core. I think the Nutch's biased the design of the design of the plugin is very wise from Emacs. Isn't the Eclipse are not very popular because of the strong scalability of the plugin system?
And this design distinguishes two types of programmers: system programmers and applicants. The former can focus on writing efficient and reliable cores, and the latter can bring a variety of application plugins to the entire system. Fully exploit the advantages of open source.
By the way, many people in China have studied the search engine. I also saw a lot of good implementation, but Nutch didn't have a more mature Chinese word technique. I felt very unfortunately, I hindered Nutch in China. . The resolution of the Chinese Academy of Sciences is really good. If the author really has the heart, I think I should try to add it to Nutch, it can be better promoted, this is a win-win mode.
