public boolean accept(Path path) {
for (PathFilter filter : filters) {
if (!filter.accept(path)) {
return false;
}
}
return true;
}
@Override
public List<HdfsFileStatusWithId> listLocatedHdfsStatus(FileSystem fs, Path p, PathFilter filter)
throws IOException {
DistributedFileSystem dfs = ensureDfs(fs);
DFSClient dfsc = dfs.getClient();
final String src = p.toUri().getPath();
DirectoryListing current =
dfsc.listPaths(src, org.apache.hadoop.hdfs.protocol.HdfsFileStatus.EMPTY_NAME, true);
if (current == null) { // the directory does not exist
throw new FileNotFoundException("File " + p + " does not exist.");
}
final URI fsUri = fs.getUri();
List<HdfsFileStatusWithId> result =
new ArrayList<HdfsFileStatusWithId>(current.getPartialListing().length);
while (current != null) {
org.apache.hadoop.hdfs.protocol.HdfsFileStatus[] hfss = current.getPartialListing();
for (int i = 0; i < hfss.length; ++i) {
HdfsLocatedFileStatus next = (HdfsLocatedFileStatus) (hfss[i]);
if (filter != null) {
Path filterPath = next.getFullPath(p).makeQualified(fsUri, null);
if (!filter.accept(filterPath)) continue;
}
LocatedFileStatus lfs = next.makeQualifiedLocated(fsUri, p);
result.add(new HdfsFileStatusWithIdImpl(lfs, next.getFileId()));
}
current = current.hasMore() ? dfsc.listPaths(src, current.getLastName(), true) : null;
}
return result;
}
private static List<Path> listFiles(Path path, PathFilter filter) throws IOException {
ArrayList<Path> files = new ArrayList<Path>();
FileSystem fs = FileSystem.get(confHadoop);
FileStatus[] status = fs.listStatus(path);
for (int i = 0; i < status.length; i++) {
Path p = status[i].getPath();
if (filter.accept(p)) {
files.add(p);
}
}
return files;
}
private static List<FileStatus> scanDirectory(Path path, FileContext fc, PathFilter pathFilter)
throws IOException {
path = fc.makeQualified(path);
List<FileStatus> jhStatusList = new ArrayList<FileStatus>();
RemoteIterator<FileStatus> fileStatusIter = fc.listStatus(path);
while (fileStatusIter.hasNext()) {
FileStatus fileStatus = fileStatusIter.next();
Path filePath = fileStatus.getPath();
if (fileStatus.isFile() && pathFilter.accept(filePath)) {
jhStatusList.add(fileStatus);
}
}
return jhStatusList;
}
/**
* Add files in the input path recursively into the results.
*
* @param result The List to store all files.
* @param fs The FileSystem.
* @param path The input path.
* @param inputFilter The input filter that can be used to filter files/dirs.
* @throws IOException
*/
protected void addInputPathRecursively(
List<FileStatus> result, FileSystem fs, Path path, PathFilter inputFilter)
throws IOException {
RemoteIterator<LocatedFileStatus> iter = fs.listLocatedStatus(path);
while (iter.hasNext()) {
LocatedFileStatus stat = iter.next();
if (inputFilter.accept(stat.getPath())) {
if (stat.isDirectory()) {
addInputPathRecursively(result, fs, stat.getPath(), inputFilter);
} else {
result.add(stat);
}
}
}
}
private static List<FileStatus> listFilteredStatus(FileContext fc, Path root, PathFilter filter)
throws IOException {
List<FileStatus> fsList = remoteIterToList(fc.listStatus(root));
if (filter == null) {
return fsList;
} else {
List<FileStatus> filteredList = new LinkedList<FileStatus>();
for (FileStatus fs : fsList) {
if (filter.accept(fs.getPath())) {
filteredList.add(fs);
}
}
return filteredList;
}
}
private List<FileStatus> singleThreadedListStatus(
JobContext job, Path[] dirs, PathFilter inputFilter, boolean recursive) throws IOException {
List<FileStatus> result = new ArrayList<FileStatus>();
List<IOException> errors = new ArrayList<IOException>();
for (int i = 0; i < dirs.length; ++i) {
Path p = dirs[i];
FileSystem fs = p.getFileSystem(job.getConfiguration());
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;
}
/**
* Adds all non-hidden directories and subdirectories to set param
*
* @throws IOException
*/
static boolean getAllSubDirs(URI location, Job job, Set<Path> paths) throws IOException {
FileSystem fs = FileSystem.get(location, job.getConfiguration());
Path path = new Path(location.getPath());
if (PATH_FILTER.accept(path)) {
try {
FileStatus file = fs.getFileStatus(path);
if (file.isDir()) {
for (FileStatus sub : fs.listStatus(path)) {
getAllSubDirs(sub.getPath().toUri(), job, paths);
}
} else {
AvroStorageLog.details("Add input file:" + file);
paths.add(file.getPath());
}
} catch (FileNotFoundException e) {
AvroStorageLog.details("getAllSubDirs: RETURN FALSE; Input path does not exist: " + path);
AvroStorageLog.details("Input path does not exist: " + path);
return false;
}
return true;
}
return false;
}
private void doTestPathFilter(Map<String, Boolean> expected, PathFilter filter) {
for (Map.Entry<String, Boolean> e : expected.entrySet()) {
assertEquals(e.getValue(), filter.accept(new Path(e.getKey())));
}
}
public boolean accept(Path file) {
try {
FileSystem fs = file.getFileSystem(conf);
boolean unpack = conf.getBoolean(unpackParamName, true);
if (defaultIgnores.accept(file) && fs.getFileStatus(file).isDir() == false) {
String URI = file.toUri().toString();
// detect whether a file is likely to be an archive
// TODO extend to other known types
if (unpack && URI.toLowerCase().endsWith(".zip")) {
FSDataInputStream fis = null;
try {
fis = fs.open(file);
ArchiveInputStream input =
new ArchiveStreamFactory().createArchiveInputStream(new BufferedInputStream(fis));
ArchiveEntry entry = null;
while ((entry = input.getNextEntry()) != null) {
String name = entry.getName();
long size = entry.getSize();
byte[] content = new byte[(int) size];
input.read(content);
key.set(name);
// fill the values for the content object
value.setUrl(name);
value.setContent(content);
writer.append(key, value);
counter++;
if (reporter != null) {
reporter.incrCounter(Counters.DOC_COUNT, 1);
}
}
} catch (ArchiveException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
fis.close();
}
} else {
// Hmm, kind of dangerous to do this
byte[] fileBArray = new byte[(int) fs.getFileStatus(file).getLen()];
FSDataInputStream fis = null;
try {
fis = fs.open(file);
fis.readFully(0, fileBArray);
fis.close();
key.set(URI);
// fill the values for the content object
value.setUrl(URI);
value.setContent(fileBArray);
writer.append(key, value);
counter++;
if (reporter != null) {
reporter.incrCounter(Counters.DOC_COUNT, 1);
}
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
// if it is a directory, accept it so we can possibly recurse on
// it,
// otherwise we don't care about actually accepting the file,
// since
// all the work is done in the accept method here.
return fs.getFileStatus(file).isDir();
} catch (IOException e) {
log.error("Exception", e);
}
return false;
}
