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Java FileUtil.copyMerge方法代码示例

本文整理汇总了Java中org.apache.hadoop.fs.FileUtil.copyMerge方法的典型用法代码示例。如果您正苦于以下问题:Java FileUtil.copyMerge方法的具体用法?Java FileUtil.copyMerge怎么用?Java FileUtil.copyMerge使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在org.apache.hadoop.fs.FileUtil的用法示例。


在下文中一共展示了FileUtil.copyMerge方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: run

import org.apache.hadoop.fs.FileUtil; //导入方法依赖的package包/类
/**
 *
 * @return result - Frobenius Norm
 * @throws IOException
 * @throws ClassNotFoundException
 * @throws InterruptedException
 */
public Double run() throws IOException, ClassNotFoundException, InterruptedException {

    String wd = configuration.get("wd");
    Path wdPath = new Path(wd);

    Job job = Job.getInstance(configuration, "DF1");

    Path tmpPath = new Path(configuration.get("wd"), "dftmp");

    job.setJarByClass(MRNMF.class);

    FileInputFormat.addInputPath(job, new Path(Xpath));
    MatrixUpdater.addInpuPath(job, new Path(FGPath));
    FileOutputFormat.setOutputPath(job, tmpPath);

    job.setInputFormatClass(TextInputFormat.class);
    job.setOutputFormatClass(TextOutputFormat.class);

    job.setMapOutputKeyClass(LongWritable.class);
    job.setMapOutputValueClass(Text.class);

    job.setMapperClass(DFMapper1.class);
    job.setReducerClass(DFReducer1.class);

    job.waitForCompletion(true);

    job = Job.getInstance(configuration, "DF2");

    job.setJarByClass(MRNMF.class);

    MatrixUpdater.addInpuPath(job, tmpPath);
    FileOutputFormat.setOutputPath(job, new Path(wdPath, outputDir));

    job.setInputFormatClass(TextInputFormat.class);
    job.setOutputFormatClass(TextOutputFormat.class);

    job.setMapOutputKeyClass(LongWritable.class);
    job.setMapOutputValueClass(Text.class);

    job.setMapperClass(DFMapper2.class);
    job.setReducerClass(DFReducer2.class);

    job.waitForCompletion(true);

    FileSystem wdfs = wdPath.getFileSystem(new Configuration());
    FileUtil.copyMerge(wdfs, new Path(wd, outputDir), wdfs, new Path(wd, resultFileName), false, new Configuration(), "");

    return getResult(wdfs, new Path(wd, resultFileName));
}
 
开发者ID:Romm17,项目名称:MRNMF,代码行数:57,代码来源:DistanceFinder.java


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