public static String absolutePath(Path p) {
if (p == null) return "";
StringBuilder sb = new StringBuilder();
Path parentPath = p.getParent();
if (parentPath == null) return "/";
sb.append(absolutePath(parentPath));
if (sb.length() > 1) sb.append("/");
sb.append(p.getName());
return sb.toString();
}
/**
* open a file for writing
*
* @param hdfsPath !null path -
* @return !null stream
*/
@Override
public OutputStream openFileForWrite(final Path src) {
if (isRunningAsUser()) {
return super.openFileForWrite(src);
}
if (true) throw new UnsupportedOperationException("Fix This"); // ToDo
final FileSystem fs = getDFS();
try {
Path parent = src.getParent();
guaranteeDirectory(parent);
return FileSystem.create(fs, src, FULL_FILE_ACCESS);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* open a file for reading
*
* @param hdfsPath !null path - probably of an existing file
* @return !null stream
*/
@Override
public InputStream openFileForRead(Path src) {
if (isRunningAsUser()) {
return super.openFileForRead(src);
}
String hdfsPath = src.toString();
if (isFileNameLocal(hdfsPath)) {
try {
return new FileInputStream(hdfsPath); // better be local
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
}
}
if (true) throw new UnsupportedOperationException("Fix This"); // ToDo
final FileSystem fs = getDFS();
try {
return fs.open(src);
} catch (IOException e) {
throw new RuntimeException(e);
}
}