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Java FileUtil.list方法代碼示例

本文整理匯總了Java中org.apache.hadoop.fs.FileUtil.list方法的典型用法代碼示例。如果您正苦於以下問題:Java FileUtil.list方法的具體用法?Java FileUtil.list怎麽用?Java FileUtil.list使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在org.apache.hadoop.fs.FileUtil的用法示例。


在下文中一共展示了FileUtil.list方法的3個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: isBPDirEmpty

import org.apache.hadoop.fs.FileUtil; //導入方法依賴的package包/類
boolean isBPDirEmpty(String bpid) throws IOException {
  File volumeCurrentDir = this.getCurrentDir();
  File bpDir = new File(volumeCurrentDir, bpid);
  File bpCurrentDir = new File(bpDir, DataStorage.STORAGE_DIR_CURRENT);
  File finalizedDir = new File(bpCurrentDir,
      DataStorage.STORAGE_DIR_FINALIZED);
  File rbwDir = new File(bpCurrentDir, DataStorage.STORAGE_DIR_RBW);
  if (finalizedDir.exists() && !DatanodeUtil.dirNoFilesRecursive(
      finalizedDir)) {
    return false;
  }
  if (rbwDir.exists() && FileUtil.list(rbwDir).length != 0) {
    return false;
  }
  return true;
}
 
開發者ID:naver,項目名稱:hadoop,代碼行數:17,代碼來源:FsVolumeImpl.java

示例2: cleanupDetachDir

import org.apache.hadoop.fs.FileUtil; //導入方法依賴的package包/類
/**
 * Cleanup the detachDir.
 * 
 * If the directory is not empty report an error; Otherwise remove the
 * directory.
 * 
 * @param detachDir detach directory
 * @throws IOException if the directory is not empty or it can not be removed
 */
private void cleanupDetachDir(File detachDir) throws IOException {
  if (!DataNodeLayoutVersion.supports(
      LayoutVersion.Feature.APPEND_RBW_DIR, layoutVersion)
      && detachDir.exists() && detachDir.isDirectory()) {

    if (FileUtil.list(detachDir).length != 0) {
      throw new IOException("Detached directory " + detachDir
          + " is not empty. Please manually move each file under this "
          + "directory to the finalized directory if the finalized "
          + "directory tree does not have the file.");
    } else if (!detachDir.delete()) {
      throw new IOException("Cannot remove directory " + detachDir);
    }
  }
}
 
開發者ID:naver,項目名稱:hadoop,代碼行數:25,代碼來源:BlockPoolSliceStorage.java

示例3: cleanupDetachDir

import org.apache.hadoop.fs.FileUtil; //導入方法依賴的package包/類
/**
 * Cleanup the detachDir. 
 * 
 * If the directory is not empty report an error; 
 * Otherwise remove the directory.
 * 
 * @param detachDir detach directory
 * @throws IOException if the directory is not empty or it can not be removed
 */
private void cleanupDetachDir(File detachDir) throws IOException {
  if (!DataNodeLayoutVersion.supports(
      LayoutVersion.Feature.APPEND_RBW_DIR, layoutVersion) &&
      detachDir.exists() && detachDir.isDirectory() ) {
    
      if (FileUtil.list(detachDir).length != 0 ) {
        throw new IOException("Detached directory " + detachDir +
            " is not empty. Please manually move each file under this " +
            "directory to the finalized directory if the finalized " +
            "directory tree does not have the file.");
      } else if (!detachDir.delete()) {
        throw new IOException("Cannot remove directory " + detachDir);
      }
  }
}
 
開發者ID:naver,項目名稱:hadoop,代碼行數:25,代碼來源:DataStorage.java


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