Example usage for org.apache.hadoop.hdfs DFSClient setTimes

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs DFSClient setTimes.

Prototype

public void setTimes(String src, long mtime, long atime) throws IOException 

Source Link

Document

set the modification and access time of a file

Usage

From source file:com.sun.kohsuke.hadoop.importer.App.java

License:Open Source License

public static void main(String[] args) throws Exception {
    if (args.length != 3) {
        System.out.println("Usage: java -jar importer.jar [HDFS URL] [local directory] [HDFS directory]");
        System.exit(-1);/*from  ww w.ja  v a 2 s.c  o m*/
    }

    Configuration conf = new Configuration();
    conf.set("fs.default.name", args[0]);
    DFSClient dfs = new DFSClient(conf);

    File in = new File(args[1]);
    String out = args[2];

    File[] children = in.listFiles(new FileFilter() {
        public boolean accept(File child) {
            return child.isFile();
        }
    });
    if (children == null) {
        System.out.println("No such directory exists: " + in);
        System.exit(-1);
    }
    int cnt = 1;
    for (File f : children) {
        String dest = out + '/' + f.getName();
        FileStatus i = dfs.getFileInfo(dest);
        if (i == null || i.getModificationTime() != f.lastModified() || i.getLen() != f.length()) {
            System.out.printf("(%d/%d) Importing %s\n", cnt, children.length, f);
            try {
                IOUtils.copyBytes(new FileInputStream(f), dfs.create(dest, true), conf);
                dfs.setTimes(dest, f.lastModified(), f.lastModified());
            } catch (RemoteException e) {
                // failure to create
                e.printStackTrace();
            }
        } else {
            System.out.printf("(%d/%d) Skipping %s\n", cnt, children.length, f);
        }
        cnt++;
    }
}

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