Java StringUtils.unEscapeString方法代碼示例

import org.apache.hadoop.util.StringUtils; //導入方法依賴的package包/類
public static Path[] getInputPaths(JobContext context) {
  String dirs = context.getConfiguration().get(INPUT_DIR, "");
  // LOG.info(System.getProperty("user.dir"));
  LOG.info("dirs=" + dirs);
  String[] list = StringUtils.split(dirs);
  Path[] result = new Path[list.length];
  for (int i = 0; i < list.length; i++) {
    result[i] = new Path(StringUtils.unEscapeString(list[i]));
  }
  return result;
}
 

import org.apache.hadoop.util.StringUtils; //導入方法依賴的package包/類
/**
 * Get the list of input {@link Path}s for the map-reduce job.
 * 
 * @param conf The configuration of the job 
 * @return the list of input {@link Path}s for the map-reduce job.
 */
public static Path[] getInputPaths(JobConf conf) {
  String dirs = conf.get(org.apache.hadoop.mapreduce.lib.input.
    FileInputFormat.INPUT_DIR, "");
  String [] list = StringUtils.split(dirs);
  Path[] result = new Path[list.length];
  for (int i = 0; i < list.length; i++) {
    result[i] = new Path(StringUtils.unEscapeString(list[i]));
  }
  return result;
}
 

import org.apache.hadoop.util.StringUtils; //導入方法依賴的package包/類
/**
 * Get the list of input {@link Path}s for the map-reduce job.
 * 
 * @param context The job
 * @return the list of input {@link Path}s for the map-reduce job.
 */
public static Path[] getInputPaths(JobContext context) {
  String dirs = context.getConfiguration().get(INPUT_DIR, "");
  String [] list = StringUtils.split(dirs);
  Path[] result = new Path[list.length];
  for (int i = 0; i < list.length; i++) {
    result[i] = new Path(StringUtils.unEscapeString(list[i]));
  }
  return result;
}
 

import org.apache.hadoop.util.StringUtils; //導入方法依賴的package包/類
protected List<FileStatus> listStatus0(Configuration conf) throws IOException {
  List<FileStatus> result = new ArrayList<FileStatus>();
  Path[] dirs = new Path[1];
  dirs[0] = new Path(StringUtils.unEscapeString(conf.get(INPUT_DIR, "")));
  if (dirs.length == 0) {
    throw new IOException("No input paths specified in job");
  }

  // get tokens for all the required FileSystems..
  //    TokenCache.obtainTokensForNamenodes(job.getCredentials(), dirs,
  //      job.getConfiguration());

  // Whether we need to recursive look into the directory structure
  boolean recursive = conf.getBoolean(INPUT_DIR_RECURSIVE, false);

  List<IOException> errors = new ArrayList<IOException>();

  // creates a MultiPathFilter with the hiddenFileFilter and the
  // user provided one (if any).
  List<PathFilter> filters = new ArrayList<PathFilter>();

  PathFilter inputFilter = new MultiPathFilter(filters);

  for (int i=0; i < dirs.length; ++i) {
    Path p = dirs[i];
    FileSystem fs = p.getFileSystem(conf);
    FileStatus[] matches = fs.globStatus(p, inputFilter);
    if (matches == null) {
      errors.add(new IOException("Input path does not exist: " + p));
    } else if (matches.length == 0) {
      errors.add(new IOException("Input Pattern " + p + " matches 0 files"));
    } else {
      for (FileStatus globStat: matches) {
        if (globStat.isDirectory()) {
          RemoteIterator<LocatedFileStatus> iter = fs.listLocatedStatus(globStat.getPath());
          while (iter.hasNext()) {
            LocatedFileStatus stat = iter.next();
            if (inputFilter.accept(stat.getPath())) {
              if (recursive && stat.isDirectory()) {
                addInputPathRecursively(result, fs, stat.getPath(),
                  inputFilter);
              } else {
                result.add(stat);
              }
            }
          }
        } else {
          result.add(globStat);
        }
      }
    }
  }

  if (!errors.isEmpty()) {
    throw new InvalidInputException(errors);
  }

  return result;
}
 

import org.apache.hadoop.util.StringUtils; //導入方法依賴的package包/類
private static String unescape(String string) {
  return StringUtils.unEscapeString(string, StringUtils.ESCAPE_CHAR,
                                    charsToEscape);
}