Class: Judges::Baza

Inherits:
Object show all
Defined in:
lib/judges/baza.rb

Overview

Interface to the API of zerocracy.com.

You make an instance of this class and then call one of its methods. The object will make HTTP request to www.zerocracy.com and interpret the results returned.

Author

Yegor Bugayenko (yegor256@gmail.com)

Copyright

Copyright © 2024 Yegor Bugayenko

License

MIT

Instance Method Summary collapse

Constructor Details

#initialize(host, port, token, ssl: true, timeout: 30, retries: 3, loog: Loog::NULL, compression: true) ⇒ Baza

Returns a new instance of Baza.



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# File 'lib/judges/baza.rb', line 41

def initialize(host, port, token, ssl: true, timeout: 30, retries: 3, loog: Loog::NULL, compression: true)
  @host = host
  @port = port
  @ssl = ssl
  @token = token
  @timeout = timeout
  @loog = loog
  @retries = retries
  @compression = compression
end

Instance Method Details

#exit_code(id) ⇒ Integer

Read and return the exit code of the job.

Parameters:

  • id (Integer) —

    The ID of the job on the server

Returns:

  • (Integer) —

    The exit code



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# File 'lib/judges/baza.rb', line 164

def exit_code(id)
  code = 0
  elapsed(@loog) do
    ret =
      with_retries(max_tries: @retries) do
        checked(
          Typhoeus::Request.get(
            home.append('exit').append("#{id}.txt").to_s,
            headers:
          )
        )
      end
    code = ret.body.to_i
    throw :"The exit code of the job ##{id} is #{code}"
  end
  code
end

#finished?(id) ⇒ Boolean

The job with this ID is finished already?

Parameters:

  • id (Integer) —

    The ID of the job on the server

Returns:

  • (Boolean) —

    TRUE if the job is already finished



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# File 'lib/judges/baza.rb', line 122

def finished?(id)
  finished = false
  elapsed(@loog) do
    ret =
      with_retries(max_tries: @retries) do
        checked(
          Typhoeus::Request.get(
            home.append('finished').append(id).to_s,
            headers:
          )
        )
      end
    finished = ret.body == 'yes'
    throw :"The job ##{id} is #{finished ? '' : 'not yet '}finished at #{@host}"
  end
  finished
end

#lock(name, owner) ⇒ Object

Lock the name.

Parameters:

  • name (String) —

    The name of the job on the server

  • owner (String) —

    The owner of the lock (any string)



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# File 'lib/judges/baza.rb', line 185

def lock(name, owner)
  elapsed(@loog) do
    with_retries(max_tries: @retries) do
      checked(
        Typhoeus::Request.get(
          home.append('lock').append(name).add(owner:).to_s,
          headers:
        ),
        302
      )
    end
  end
end

#name_exists?(name) ⇒ Boolean

Check whether the name of the job exists on the server.

Parameters:

  • name (String) —

    The name of the job on the server

Returns:

  • (Boolean) —

    TRUE if such name exists



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# File 'lib/judges/baza.rb', line 240

def name_exists?(name)
  exists = 0
  elapsed(@loog) do
    ret =
      with_retries(max_tries: @retries) do
        checked(
          Typhoeus::Request.get(
            home.append('exists').append(name).to_s,
            headers:
          )
        )
      end
    exists = ret.body == 'yes'
    throw :"The name \"#{name}\" #{exists ? 'exists' : "doesn't exist"} at #{@host}"
  end
  exists
end

#pull(id) ⇒ Bytes

Pull factbase from the server.

Parameters:

  • id (Integer) —

    The ID of the job on the server

Returns:

  • (Bytes) —

    Binary data pulled



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# File 'lib/judges/baza.rb', line 91

def pull(id)
  data = 0
  elapsed(@loog) do
    Tempfile.open do |file|
      File.open(file, 'wb') do |f|
        request = Typhoeus::Request.new(
          home.append('pull').append("#{id}.fb").to_s,
          headers: headers.merge(
            'Accept' => 'application/octet-stream'
          ),
          connecttimeout: @timeout,
          timeout: @timeout
        )
        request.on_body do |chunk|
          f.write(chunk)
        end
        with_retries(max_tries: @retries) do
          request.run
        end
        checked(request.response)
      end
      data = File.binread(file)
      throw :"Pulled #{data.size} bytes of job ##{id} factbase at #{@host}"
    end
  end
  data
end

#push(name, data, meta) ⇒ Integer

Push factbase to the server.

Parameters:

  • name (String) —

    The name of the job on the server

  • data (Bytes) —

    The data to push to the server (binary)

  • meta (Array<String>) —

    List of metas, possibly empty

Returns:

  • (Integer) —

    Job ID on the server



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# File 'lib/judges/baza.rb', line 57

def push(name, data, meta)
  id = 0
  hdrs = headers.merge(
    'Content-Type' => 'application/octet-stream',
    'Content-Length' => data.size
  )
  unless meta.empty?
    hdrs = hdrs.merge('X-Zerocracy-Meta' => meta.map { |v| Base64.encode64(v).gsub("\n", '') }.join(' '))
  end
  params = {
    connecttimeout: @timeout,
    timeout: @timeout,
    body: data,
    headers: hdrs
  }
  elapsed(@loog) do
    ret =
      with_retries(max_tries: @retries) do
        checked(
          Typhoeus::Request.put(
            home.append('push').append(name).to_s,
            @compression ? zipped(params) : params
          )
        )
      end
    id = ret.body.to_i
    throw :"Pushed #{data.size} bytes to #{@host}, job ID is ##{id}"
  end
  id
end

#recent(name) ⇒ Integer

Get the ID of the job by the name.

Parameters:

  • name (String) —

    The name of the job on the server

Returns:

  • (Integer) —

    The ID of the job on the server



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# File 'lib/judges/baza.rb', line 219

def recent(name)
  job = 0
  elapsed(@loog) do
    ret =
      with_retries(max_tries: @retries) do
        checked(
          Typhoeus::Request.get(
            home.append('recent').append("#{name}.txt").to_s,
            headers:
          )
        )
      end
    job = ret.body.to_i
    throw :"The recent \"#{name}\" job's ID is ##{job} at #{@host}"
  end
  job
end

#stdout(id) ⇒ String

Read and return the stdout of the job.

Parameters:

  • id (Integer) —

    The ID of the job on the server

Returns:

  • (String) —

    The stdout, as a text



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# File 'lib/judges/baza.rb', line 143

def stdout(id)
  stdout = ''
  elapsed(@loog) do
    ret =
      with_retries(max_tries: @retries) do
        checked(
          Typhoeus::Request.get(
            home.append('stdout').append("#{id}.txt").to_s,
            headers:
          )
        )
      end
    stdout = ret.body
    throw :"The stdout of the job ##{id} has #{stdout.split("\n")} lines"
  end
  stdout
end

#unlock(name, owner) ⇒ Object

Unlock the name.

Parameters:

  • name (String) —

    The name of the job on the server

  • owner (String) —

    The owner of the lock (any string)



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# File 'lib/judges/baza.rb', line 202

def unlock(name, owner)
  elapsed(@loog) do
    with_retries(max_tries: @retries) do
      checked(
        Typhoeus::Request.get(
          home.append('unlock').append(name).add(owner:).to_s,
          headers:
        ),
        302
      )
    end
  end
end