module LogStash::PluginMixins::JdbcStreaming
Public Class Methods
included(base)
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This method is called when someone includes this module
# File lib/logstash/plugin_mixins/jdbc_streaming.rb, line 27 def self.included(base) # Add these methods to the 'base' given. base.extend(self) base.setup_jdbc_config end
Public Instance Methods
prepare_jdbc_connection()
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# File lib/logstash/plugin_mixins/jdbc_streaming.rb, line 77 def prepare_jdbc_connection require "sequel" require "sequel/adapters/jdbc" require "java" load_driver_jars @sequel_opts_symbols = @sequel_opts.inject({}) {|hash, (k,v)| hash[k.to_sym] = v; hash} @sequel_opts_symbols[:user] = @jdbc_user unless @jdbc_user.nil? || @jdbc_user.empty? @sequel_opts_symbols[:password] = @jdbc_password.value unless @jdbc_password.nil? Sequel::JDBC.load_driver(@jdbc_driver_class) @database = Sequel.connect(@jdbc_connection_string, @sequel_opts_symbols) if @jdbc_validate_connection @database.extension(:connection_validator) @database.pool.connection_validation_timeout = @jdbc_validation_timeout end begin @database.test_connection rescue Sequel::DatabaseConnectionError => e #TODO return false and let the plugin raise a LogStash::ConfigurationError raise e end end
setup_jdbc_config()
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# File lib/logstash/plugin_mixins/jdbc_streaming.rb, line 34 def setup_jdbc_config # JDBC driver library path to third party driver library. config :jdbc_driver_library, :validate => :path # JDBC driver class to load, for example "oracle.jdbc.OracleDriver" or "org.apache.derby.jdbc.ClientDriver" config :jdbc_driver_class, :validate => :string, :required => true # JDBC connection string config :jdbc_connection_string, :validate => :string, :required => true # JDBC user config :jdbc_user, :validate => :string # JDBC password config :jdbc_password, :validate => :password # Connection pool configuration. # Validate connection before use. config :jdbc_validate_connection, :validate => :boolean, :default => false # Connection pool configuration. # How often to validate a connection (in seconds) config :jdbc_validation_timeout, :validate => :number, :default => 3600 end
Private Instance Methods
load_driver_jars()
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# File lib/logstash/plugin_mixins/jdbc_streaming.rb, line 61 def load_driver_jars unless @jdbc_driver_library.nil? || @jdbc_driver_library.empty? @jdbc_driver_library.split(",").each do |driver_jar| begin @logger.debug("loading #{driver_jar}") # Use https://github.com/jruby/jruby/wiki/CallingJavaFromJRuby#from-jar-files to make classes from jar # available require driver_jar rescue LoadError => e raise LogStash::PluginLoadingError, "unable to load #{driver_jar} from :jdbc_driver_library, #{e.message}" end end end end