Created
September 28, 2011 08:14
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The fluent plugin for hbase.
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module Fluent | |
class HbaseOutput < Fluent::BufferedOutput | |
Fluent::Plugin.register_output('hbase', self) | |
def initialize | |
super | |
require 'rubygems' | |
require 'stargate' | |
end | |
def configure(conf) | |
super | |
if host = conf['host'] | |
@host = host | |
unless @host | |
raise ConfigError, "'host' parameter is required on file output" | |
end | |
if table = conf['table'] | |
@table = table | |
end | |
unless @table | |
raise ConfigError, "'hbase_table' parameter is required on file output" | |
end | |
if @localtime | |
@formatter = Proc.new {|tag,event| | |
"#{Time.at(event.time).iso8601}\t#{tag}\t#{event.record.to_json}\n" | |
} | |
else | |
@formatter = Proc.new {|tag,event| | |
"#{Time.at(event.time).utc.iso8601}\t#{tag}\t#{event.record.to_json}\n" | |
} | |
end | |
end | |
def start | |
super | |
# FIXME : authentication may be required. | |
@client = Stargate::Client.new(@host) | |
end | |
def shutdown | |
@client.close | |
end | |
def format(tag, event) | |
@formatter.call(tag, event) | |
end | |
def write(chunk) | |
# TODO : Error handling | |
records = [] | |
chunk.split('\n') { |element| | |
key, cf, json_record = element.split('\t') | |
p json_record | |
record = JSON.parse(json_val).each { |k, v| | |
k = cf + ":" + k | |
} | |
p record | |
@client.create_row(@table, key, Time.now.to_i, record) | |
} | |
end | |
end |
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