Class: SolrWrapper::Instance

Inherits:
Object
  • Object
show all
Defined in:
lib/solr_wrapper/instance.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Instance

Returns a new instance of Instance.



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# File 'lib/solr_wrapper/instance.rb', line 15

def initialize options = {}
  @options = options
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/solr_wrapper/instance.rb', line 13

def options
  @options
end

Instance Method Details

#create(options = {}) ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 157

def create options = {}
  options[:name] ||= SecureRandom.hex

  IO.popen([solr_binary, "create", "-c", options[:name], "-d", options[:dir], "-p", port, err: [:child, :out]]) do |io|
    if verbose?
      IO.copy_stream(io,$stderr)
    end
  end

  options[:name]
end

#delete(name, options = {}) ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 169

def delete name, options = {}
  IO.popen([solr_binary, "delete", "-c", name, "-p", port, err: [:child, :out]]) do |io|
    if verbose?
      IO.copy_stream(io,$stderr)
    end
  end
end

#download ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 131

def download
  unless File.exists? download_path and md5sum(download_path) == expected_md5sum
    pbar = ProgressBar.create(title: File.basename(url), total: nil, format: "%t: |%B| %p%% (%e )")
    open(url, content_length_proc: lambda {|t|
      if t && 0 < t
        pbar.total = t
      end
      },
      progress_proc: lambda {|s|
        pbar.progress = s
      }) do |io|
      IO.copy_stream(io,download_path)
    end

    unless md5sum(download_path) == expected_md5sum
      raise "MD5 mismatch" unless options[:ignore_md5sum]
    end
  end

  download_path
end

#extract ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 98

def extract
  return solr_dir if File.exists?(solr_binary) and extracted_version == version

  zip_path = download

  begin
    Zip::File.open(zip_path) do |zip_file|
      # Handle entries one by one
      zip_file.each do |entry|
        dest_file = File.join(tmp_save_dir,entry.name)
        FileUtils.remove_entry(dest_file,true)
        entry.extract(dest_file)
      end
    end

  rescue Exception => e
    abort "Unable to unzip #{zip_path} into #{tmp_save_dir}: #{e.message}"
  end

  begin  
    FileUtils.remove_dir(solr_dir,true)
    FileUtils.cp_r File.join(tmp_save_dir, File.basename(default_url, ".zip")), solr_dir
    self.extracted_version = version
    FileUtils.chmod 0755, solr_binary
  rescue Exception => e
    abort "Unable to copy #{tmp_save_dir} to #{solr_dir}: #{e.message}"
  end

  solr_dir
ensure
  FileUtils.remove_entry tmp_save_dir if File.exists? tmp_save_dir
end

#port ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 153

def port
  options.fetch(:port, "8983")
end

#start ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 26

def start
  extract
  IO.popen([solr_binary, "start", "-p", port, err: [:child, :out]]) do |io|
    stringio = StringIO.new
    if verbose?
      IO.copy_stream(io,$stderr)
    else
      IO.copy_stream(io, stringio)
    end
    _, exit_status = Process.wait2(io.pid)
    if exit_status != 0
      stringio.rewind
      raise "Unable to start solr: #{stringio.read}"
    end
  end if managed?

  # Wait for solr to start
  unless status
    sleep 1
  end
  started!
end

#started? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/solr_wrapper/instance.rb', line 94

def started?
  !!status
end

#status ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 73

def status
  return true unless managed?

  stringio = StringIO.new

  IO.popen([solr_binary, "status", "-p", port, err: [:child, :out]]) do |io|
    IO.copy_stream(io, stringio)

    _, exit_status = Process.wait2(io.pid)

    stringio.rewind

    if exit_status != 0
      raise "Unable to query solr status: #{stringio.read}"
    end
  end

  out = stringio.read
  out =~ /running on port #{port}/
end

#stop ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 49

def stop
  return unless started?

  IO.popen([solr_binary, "stop", "-p", port, err: [:child, :out]]) do |io|
    stringio = StringIO.new
    if verbose?
      IO.copy_stream(io,$stderr)
    else
      IO.copy_stream(io, stringio)
    end
    _, exit_status = Process.wait2(io.pid)

    if exit_status != 0
      stringio.rewind
      raise "Unable to start solr: #{stringio.read}"
    end

    # Wait for solr to stop
    while status
      sleep 1
    end
  end if managed?
end

#with_collection(options = {}) ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 177

def with_collection options = {}
  name = create(options)
  begin
    yield name
  ensure
    delete name
  end
end

#wrap(&block) ⇒ Object 



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# File 'lib/solr_wrapper/instance.rb', line 19

def wrap &block
  start
  yield self
ensure
  stop
end