Class: Deltacloud::Drivers::Google::GoogleDriver

Inherits:
BaseDriver
  • Object
show all
Defined in:
lib/deltacloud/drivers/google/google_driver.rb

Constant Summary

Constants inherited from BaseDriver

BaseDriver::MEMBER_SHOW_METHODS, BaseDriver::STATE_MACHINE_OPTS

Instance Method Summary collapse

Methods inherited from BaseDriver

#address, #api_provider, #blob, #bucket, #catched_exceptions_list, #configured_providers, constraints, define_hardware_profile, define_instance_states, driver_name, feature, features, #filter_hardware_profiles, #filter_on, #find_hardware_profile, #firewall, #hardware_profile, #hardware_profiles, hardware_profiles, #has_capability?, #has_feature?, has_feature?, #image, #instance, #instance_actions_for, #instance_state_machine, instance_state_machine, #key, #name, #realm, #storage_snapshot, #storage_volume, #supported_collections

Methods included from Exceptions

exception_from_status, exceptions, included, logger, #safely

Instance Method Details

#blob_data(credentials, bucket_id, blob_id, opts = {}) ⇒ Object 



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 98

def blob_data(credentials, bucket_id, blob_id, opts={})
  google_client = new_client(credentials)
  safely do
    google_client.get_object(bucket_id, blob_id) do |chunk|
      yield chunk
    end
  end
end

#blob_metadata(credentials, opts = {}) ⇒ Object

  • Blob Metadada


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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 171

def blob_metadata(credentials, opts = {})
  google_client = new_client(credentials)
  safely do
    google_blob = google_client.head_object(opts['bucket'], opts[:id]).headers
    meta_hash = google_blob.inject({}){|result, (k,v)| result[k]=v if k=~/^x-goog-meta-/i ; result}
    meta_hash.gsub_keys("x-goog-meta-", "")
  end
end

#blob_stream_connection(params) ⇒ Object

params: :user,:password,:bucket,:blob,:content_type,:content_length,:metadata



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 127

def blob_stream_connection(params)
  client = Fog::Storage.new({:provider => :google, :google_storage_access_key_id => params[:user],
                             :google_storage_secret_access_key => params[:password]})
  google_request_uri = "https://#{client.instance_variable_get(:@host)}"
  uri = URI.parse(google_request_uri)
  conn_params = {} # build hash for the Fog signature method
  conn_params[:headers] = {} #put the metadata here
  conn_params[:host] = uri.host
  conn_params[:path] = "#{params[:bucket]}/#{CGI.escape(params[:blob])}"
  conn_params[:method] = "PUT"
  timestamp = Fog::Time.now.to_date_header
  conn_params[:headers]['Date'] = timestamp
  conn_params[:headers]['Content-Type'] = params[:content_type]
  metadata = params[:metadata] || {}
  BlobHelper::rename_metadata_headers(metadata, 'x-goog-meta-')
  metadata.each{|k,v| conn_params[:headers][k]=v}
  auth_string = "GOOG1 #{params[:user]}:#{client.signature(conn_params)}"

  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE
  request = Net::HTTP::Put.new("/#{conn_params[:path]}")
  request['Host'] = conn_params[:host]
  request['Date'] = conn_params[:headers]['Date']
  request['Content-Type'] = conn_params[:headers]['Content-Type']
  request['Content-Length'] = params[:content_length]
  request['Authorization'] = auth_string
  metadata.each{|k,v| request[k] = v}
  return http, request
end

#blobs(credentials, opts = {}) ⇒ Object

--

Blobs



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 79

def blobs(credentials, opts={})
  blobs = []
  google_client = new_client(credentials)
  safely do
    google_blob = google_client.head_object(opts['bucket'], opts[:id]).headers
    meta_hash = google_blob.inject({}){|result, (k,v)| result[k]=v if k=~/^x-goog-meta-/i ; result}
    meta_hash.gsub_keys("x-goog-meta-", "")
    blobs << Blob.new({   :id => opts[:id],
               :bucket => opts['bucket'],
               :content_length => google_blob['Content-Length'],
               :content_type => google_blob['Content-Type'],
               :last_modified => google_blob['Last-Modified'],
               :user_metadata => meta_hash
            })

  end
  blobs
end

#buckets(credentials, opts = {}) ⇒ Object

--

Buckets



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 30

def buckets(credentials, opts={})
  buckets = []
  google_client = new_client(credentials)
  safely do
    if opts[:id]
      bucket = google_client.get_bucket(opts[:id])
      buckets << convert_bucket(bucket.body)
    else
      google_client.get_service.body['Buckets'].each do |bucket|
        buckets << Bucket.new({:name => bucket['Name'], :id => bucket['Name']})
      end
    end
  end
  buckets = filter_on(buckets, :id, opts)
end

#create_blob(credentials, bucket_id, blob_id, blob_data, opts = {}) ⇒ Object

--

Create Blob



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 110

def create_blob(credentials, bucket_id, blob_id, blob_data, opts={})
  google_client = new_client(credentials)
  safely do
    dcloud_blob_metadata = BlobHelper::extract_blob_metadata_hash(opts)
    BlobHelper::rename_metadata_headers(opts, 'x-goog-meta-')
    opts['Content-Type'] = blob_data[:type]
    google_client.put_object(bucket_id, blob_id, blob_data[:tempfile], opts)
    Blob.new({ :id => blob_id,
               :bucket => bucket_id,
               :content_length => File.size(blob_data[:tempfile]).to_s,
               :content_type => blob_data[:type],
               :last_modified => "",
               :user_metadata => dcloud_blob_metadata  })
  end
end

#create_bucket(credentials, name, opts = {}) ⇒ Object

--

Create bucket - valid values for location 'EU','US'



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 49

def create_bucket(credentials, name, opts={})
  google_client = new_client(credentials)
  safely do
    bucket_location = opts['location']
    if (bucket_location && bucket_location.size > 0)
      res = google_client.put_bucket(name, {"LocationConstraint" => opts['location']})
    else
      google_client.put_bucket(name)
    end
    #res.status should be eql 200 - but fog will explode if not all ok...
    Bucket.new({ :id => name,
                 :name => name,
                 :size => 0,
                 :blob_list => [] })
  end
end

#delete_blob(credentials, bucket_id, blob_id, opts = {}) ⇒ Object

--

Delete Blob



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 161

def delete_blob(credentials, bucket_id, blob_id, opts={})
  google_client = new_client(credentials)
  safely do
    google_client.delete_object(bucket_id, blob_id)
  end
end

#delete_bucket(credentials, name, opts = {}) ⇒ Object

--

Delete bucket



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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 69

def delete_bucket(credentials, name, opts={})
  google_client = new_client(credentials)
  safely do
    google_client.delete_bucket(name)
  end
end

#update_blob_metadata(credentials, opts = {}) ⇒ Object

  • Update Blob Metadata


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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 183

def update_blob_metadata(credentials, opts={})
  google_client = new_client(credentials)
  safely do
    meta_hash = BlobHelper::rename_metadata_headers(opts['meta_hash'], 'x-goog-meta-')
    options = {'x-goog-metadata-directive'=>'REPLACE'}
    options.merge!(meta_hash)
    bucket = opts['bucket']
    blob = opts[:id]
    google_client.copy_object(bucket, blob, bucket, blob, options) #source,source,target,target,options
    meta_hash.gsub_keys("x-goog-meta-", "")
  end
end

#valid_credentials?(credentials) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deltacloud/drivers/google/google_driver.rb', line 196

def valid_credentials?(credentials)
  begin
    new_client(credentials).get_service && true
  rescue
    return false
  end
  return true
end