Package org.apache.hadoop.fs

Examples of org.apache.hadoop.fs.LocatedFileStatus

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    fc.mkdir(TEST_DIR, FsPermission.getDefault(), true);
    writeFile(fc, FILE1, FILE_LEN);

    RemoteIterator<LocatedFileStatus> itor = fc.util().listFiles(
        FILE1, true);
    LocatedFileStatus stat = itor.next();
    assertFalse(itor.hasNext());
    assertTrue(stat.isFile());
    assertEquals(FILE_LEN, stat.getLen());
    assertEquals(fc.makeQualified(FILE1), stat.getPath());
    assertEquals(1, stat.getBlockLocations().length);
   
    itor = fc.util().listFiles(FILE1, false);
    stat = itor.next();
    assertFalse(itor.hasNext());
    assertTrue(stat.isFile());
    assertEquals(FILE_LEN, stat.getLen());
    assertEquals(fc.makeQualified(FILE1), stat.getPath());
    assertEquals(1, stat.getBlockLocations().length);
  }
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    // testing directory with 1 file
    writeFile(fc, FILE2, FILE_LEN);
   
    itor = fc.util().listFiles(DIR1, true);
    LocatedFileStatus stat = itor.next();
    assertFalse(itor.hasNext());
    assertTrue(stat.isFile());
    assertEquals(FILE_LEN, stat.getLen());
    assertEquals(fc.makeQualified(FILE2), stat.getPath());
    assertEquals(1, stat.getBlockLocations().length);
   
    itor = fc.util().listFiles(DIR1, false);
    stat = itor.next();
    assertFalse(itor.hasNext());
    assertTrue(stat.isFile());
    assertEquals(FILE_LEN, stat.getLen());
    assertEquals(fc.makeQualified(FILE2), stat.getPath());
    assertEquals(1, stat.getBlockLocations().length);

    // test more complicated directory
    writeFile(fc, FILE1, FILE_LEN);
    writeFile(fc, FILE3, FILE_LEN);

    itor = fc.util().listFiles(TEST_DIR, true);
    stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE2), stat.getPath());
    stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE3), stat.getPath());
    stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE1), stat.getPath());
    assertFalse(itor.hasNext());
   
    itor = fc.util().listFiles(TEST_DIR, false);
    stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE1), stat.getPath());
    assertFalse(itor.hasNext());
  }
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    fc.createSymlink(DIR1, dir5, true);
    fc.createSymlink(FILE1, file4, true);
   
    RemoteIterator<LocatedFileStatus> itor = fc.util().listFiles(dir4, true);
    LocatedFileStatus stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE2), stat.getPath());
    stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE3), stat.getPath());
    stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE1), stat.getPath());
    assertFalse(itor.hasNext());
   
    itor = fc.util().listFiles(dir4, false);
    stat = itor.next();
    assertTrue(stat.isFile());
    assertEquals(fc.makeQualified(FILE1), stat.getPath());
    assertFalse(itor.hasNext());
  }
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            getUri(), getWorkingDirectory())); // fully-qualify path
  }

  private LocatedFileStatus makeQualifiedLocated(
      HdfsLocatedFileStatus f, Path parent) {
    return new LocatedFileStatus(f.getLen(), f.isDir(), f.getReplication(),
        f.getBlockSize(), f.getModificationTime(),
        f.getAccessTime(),
        f.getPermission(), f.getOwner(), f.getGroup(),
        null,
        (f.getFullPath(parent)).makeQualified(
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      }

      @Override
      public boolean hasNext() throws IOException {
        while (curStat == null && hasNextNoFilter()) {
          LocatedFileStatus next = makeQualifiedLocated(
              (HdfsLocatedFileStatus)thisListing.getPartialListing()[i++], p);
          if (filter.accept(next.getPath())) {
            curStat = next;
          }
        }
        return curStat != null;
      }
     
      /** Check if there is a next item before applying the given filter */
      private boolean hasNextNoFilter() throws IOException {
        if (thisListing == null) {
          return false;
        }
        if (i>=thisListing.getPartialListing().length
            && thisListing.hasMore()) {
          // current listing is exhausted & fetch a new listing
          thisListing = dfs.listPaths(src, thisListing.getLastName(), true);
          statistics.incrementReadOps(1);
          if (thisListing == null) {
            return false;
          }
          i = 0;
        }
        return (i<thisListing.getPartialListing().length);
      }

      @Override
      public LocatedFileStatus next() throws IOException {
        if (hasNext()) {
          LocatedFileStatus tmp = curStat;
          curStat = null;
          return tmp;
        }
        throw new java.util.NoSuchElementException("No more entry in " + p);
      }
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          List<FileStatus> historyLogs = new ArrayList<FileStatus>();

          RemoteIterator<LocatedFileStatus> iter =
            fs.listFiles(thisPath, isRecursive);
          while (iter.hasNext()) {
            LocatedFileStatus child = iter.next();
            String fileName = child.getPath().getName();

            if (!(fileName.endsWith(".crc") || fileName.startsWith("."))) {
              historyLogs.add(child);
            }
          }
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      }

      @Override
      public boolean hasNext() throws IOException {
        while (curStat == null && hasNextNoFilter()) {
          LocatedFileStatus next =
              ((HdfsLocatedFileStatus)thisListing.getPartialListing()[i++])
              .makeQualifiedLocated(getUri(), absF);
          if (filter.accept(next.getPath())) {
            curStat = next;
          }
        }
        return curStat != null;
      }
     
      /** Check if there is a next item before applying the given filter */
      private boolean hasNextNoFilter() throws IOException {
        if (thisListing == null) {
          return false;
        }
        if (i>=thisListing.getPartialListing().length
            && thisListing.hasMore()) {
          // current listing is exhausted & fetch a new listing
          thisListing = dfs.listPaths(src, thisListing.getLastName(), true);
          statistics.incrementReadOps(1);
          if (thisListing == null) {
            return false;
          }
          i = 0;
        }
        return (i<thisListing.getPartialListing().length);
      }

      @Override
      public LocatedFileStatus next() throws IOException {
        if (hasNext()) {
          LocatedFileStatus tmp = curStat;
          curStat = null;
          return tmp;
        }
        throw new java.util.NoSuchElementException("No more entry in " + p);
      }
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          return stats.hasNext();
        }

        @Override
        public LocatedFileStatus next() throws IOException {
          LocatedFileStatus result = stats.next();
          return new LocatedFileStatus(
              ProxyFileSystem23.super.swizzleFileStatus(result, false),
              result.getBlockLocations());
        }
      };
    }
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          List<FileStatus> historyLogs = new ArrayList<FileStatus>();

          RemoteIterator<LocatedFileStatus> iter =
            fs.listFiles(thisPath, isRecursive);
          while (iter.hasNext()) {
            LocatedFileStatus child = iter.next();
            String fileName = child.getPath().getName();

            if (!(fileName.endsWith(".crc") || fileName.startsWith("."))) {
              historyLogs.add(child);
            }
          }
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            getUri(), getWorkingDirectory())); // fully-qualify path
  }

  private LocatedFileStatus makeQualifiedLocated(
      HdfsLocatedFileStatus f, Path parent) {
    return new LocatedFileStatus(f.getLen(), f.isDir(), f.getReplication(),
        f.getBlockSize(), f.getModificationTime(),
        f.getAccessTime(),
        f.getPermission(), f.getOwner(), f.getGroup(),
        null,
        (f.getFullPath(parent)).makeQualified(
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