Viking
A familiar jRuby hdfs wrapper.
Goal
The goal is to provide ways that are similar to the common ruby file system api's for interacting with hdfs. All hdfs functionallity is powered by the java hdfs classes.
Status
Available
FileDirFileUtils
Not available yet but on the todo
File#fnmatchFile#fnmatch?Dir#globFileUtils#copy
Example usage
# Set up hdfs config
Viking.configure({
host: '127.0.0.1',
port: 54310
})
# If "/some/data" exists and it is a file then print its content. If it is
# a directory then rename it. If it does not exist then we create it.
path = "/some/data"
if Viking::File.exists? path
if Viking::File.file? path
Viking::File.open(path) do |file|
puts "Reading data from #{f.path}:"
puts f.read
end
else
Viking::File.rename(path, "/some/dir")
end
else
Viking::Dir.mkdir(path)
end