Class: LogStash::Outputs::Application_insights::Blob

Inherits:
Context
  • Object
show all
Defined in:
lib/logstash/outputs/application_insights/blob.rb

Constant Summary collapse

CREATE_EXIST_ERRORS = 
{ :container => [ :create_container, :container_exist ], :table => [ :create_table, :table_exist ] }
@@closing = 
false

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Context

#clear_context, #context_to_table_entity, #context_to_tuple, #table_entity_to_context, #table_entity_to_tuple, #tuple_to_context

Constructor Details

#initialize(tuple = nil) ⇒ Blob

Returns a new instance of Blob.



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 38

def initialize ( tuple = nil )
  @configuration = Config.current
  @logger = @configuration[:logger]
  @storage_recovery = Storage_recovery.instance
  @notification_recovery = Notification_recovery.instance
  @max_tries = @configuration[:io_max_retries] + 1

  super( tuple )
end

Instance Attribute Details

#last_io_exception ⇒ Object (readonly)

Returns the value of attribute last_io_exception.



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 24

def last_io_exception
  @last_io_exception
end

Class Method Details

.close ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 30

def self.close
  @@closing = true
end

.stopped? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logstash/outputs/application_insights/blob.rb', line 34

def self.stopped?
  @@closing
end

Instance Method Details

#create_container_exist_recovery ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 68

def create_container_exist_recovery
  create_exist_recovery( :container, @container_name ) { |name| @client.blobClient.create_container( name ) }
end

#create_exist_recovery(type, name) ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 49

def create_exist_recovery( type, name )
  if CREATE_EXIST_ERRORS[type][0] == @recovery
    @prev_info = @info
    @info = "create #{type} #{@storage_account_name}/#{name}"

    # assume that exceptions can be raised due to this method:
    yield name
    @logger.info { "Successed to #{@info}" }
    @info = @prev_info
  elsif CREATE_EXIST_ERRORS[type][1] == @recovery
    @logger.info { "Successed (already exist) to #{@info}" }
    @info = @prev_info
  end
end

#create_table_exist_recovery ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 64

def create_table_exist_recovery
  create_exist_recovery( :table, @configuration[:state_table_name] ) { |name| @client.tableClient.create_table( name ) }
end

#state_table_delete(state = nil) ⇒ Object

return true on success



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 111

def state_table_delete ( state = nil )
  state ||= @log_state
  @action = :state_table_delete
  @recoverable = [ :invalid_storage_key, :io_failure, :service_unavailable, :table_exist, :create_table, :table_busy, :create_resource ]
  @info  = "#{@action} #{state} #{@storage_account_name}/#{@container_name}/#{@blob_name}"

  success =  storage_io_block {
    create_table_exist_recovery
    if :create_resource == @recovery
      @logger.info { "Note: delete entity failed, already deleted, #{@info}, state: #{state}, log_state: #{@log_state}" }
    else
      @client.tableClient.delete_entity( @configuration[:state_table_name], "#{@configuration[:partition_key_prefix]}-#{state}", @blob_name.gsub( "/", "_" ) )
    end
  }
  @storage_recovery.recover_later( context_to_tuple, :state_table_update, @storage_account_name ) unless success
  success
end

#state_table_insert ⇒ Object

return true on success



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 73

def state_table_insert
  @action = :state_table_insert
  @recoverable = [ :invalid_storage_key, :io_failure, :service_unavailable, :table_exist, :create_table, :table_busy, :entity_exist ]
  @info  = "#{@action} #{@log_state} #{@storage_account_name}/#{@container_name}/#{@blob_name}"
  success =  storage_io_block {
    create_table_exist_recovery
    if :entity_exist == @recovery
      raise NotRecoverableError if :uploading == @log_state
    else
      entity_values = context_to_table_entity
      entity_values[:PartitionKey] = "#{@configuration[:partition_key_prefix]}-#{@log_state}"
      entity_values[:RowKey] = @blob_name.gsub("/","_")
      @client.tableClient.insert_entity( @configuration[:state_table_name], entity_values )
    end
  }
  @storage_recovery.recover_later( context_to_tuple, :state_table_update, @storage_account_name )  unless success || :uploading == @log_state
  success
end

#state_table_query(storage_account_name, filter, token) ⇒ Object

return entities



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 130

def state_table_query ( , filter , token )
  @storage_account_name = 

  @action = :state_table_query
  @recoverable = [ :invalid_storage_key, :io_failure, :service_unavailable, :table_exist, :create_table, :table_busy ]
  @info  = "#{@action} #{@storage_account_name}/#{@configuration[:state_table_name]}"

  entities = nil
  success =  storage_io_block {
    create_table_exist_recovery
    options = { :filter => filter }
    options[:continuation_token] = token if token
    entities = @client.tableClient.query_entities( @configuration[:state_table_name], options )
  }
  entities
end

#state_table_update ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 92

def state_table_update
  if :uploading == @log_state
    state_table_delete
  elsif :committed == @log_state
    if state_table_insert && state_table_delete( :uploading )
      State.instance.dec_pending_commits
      State.instance.inc_pending_notifications
      # this is not a recovery, it is actually enqueue to notify
      @notification_recovery.enqueue( context_to_tuple )
    end
  elsif :notified == @log_state
    if (!@configuration[:save_notified_blobs_records] || state_table_insert) && state_table_delete( :committed ) 
      State.instance.dec_pending_notifications
    end
  end
end

#update_commited_or_uncommited_list ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/blob.rb', line 148

def update_commited_or_uncommited_list
  @action = :list_blob_blocks
  @recoverable = [ :invalid_storage_key, :io_failure, :service_unavailable, :container_exist, :create_container, :create_blob ]
  list_blob_blocks = nil
  success =  storage_io_block {
    @info = "#{@action} #{@storage_account_name}/#{@container_name}/#{@blob_name}"

    create_container_exist_recovery
    if :create_blob == @recovery
      list_blob_blocks = { :uncommitted => [  ], :committed => [  ] }
    else
      list_blob_blocks = @client.blobClient.list_blob_blocks( @container_name, @blob_name, { :blocklist_type => :all } ) unless :create_blob == @recovery
    end
  }

  if list_blob_blocks
    blocks = ( list_blob_blocks[:uncommitted].empty? ? list_blob_blocks[:committed] : list_blob_blocks[:uncommitted] )
    blocks.each do |block|
      @uploaded_block_ids << [ block.name ]
      @uploaded_bytesize += block.size
    end
    if 0 < @file_size  &&  @uploaded_bytesize != @file_size
      type = :upload_empty
    else
      type = ( blocks.empty? || 0 == @uploaded_bytesize ? :upload_empty : blocks[0].type )
    end

    @log_state = :committed if :committed == type
    { type => context_to_tuple }
  else
    nil
  end
end