package com.guwan.backend.config;

import org.apache.hadoop.fs.FileSystem;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class HadoopConfig {
    
    @Value("${hadoop.fs.defaultFS}")
    private String fsDefaultFS;
    
    @Value("${hadoop.username}")
    private String username;

    @Bean
    public FileSystem fileSystem() throws Exception {
        org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
        conf.set("fs.defaultFS", fsDefaultFS);
        // 设置副本数
        conf.set("dfs.replication", "3");
        // 设置块大小，适合大文件存储
        conf.set("dfs.blocksize", "128m");
        
        return FileSystem.get(conf);
    }
}