class Fluent::Plugin::RedisStorage
Constants
- DEFAULT_TTL_VALUE
Attributes
store[R]
Public Class Methods
new()
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Calls superclass method
# File lib/fluent/plugin/storage_redis.rb, line 22 def initialize super @store = {} end
Public Instance Methods
configure(conf)
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Calls superclass method
# File lib/fluent/plugin/storage_redis.rb, line 28 def configure(conf) super unless @path if conf && !conf.arg.empty? @path = conf.arg else raise Fluent::ConfigError, "path or conf.arg for <storage> is required." end end options = { host: @host, port: @port, thread_safe: true, db: @db_number } options[:password] = @password if @password @redis = Redis.new(options) object = @redis.get(@path) if object begin data = Yajl::Parser.parse(object) raise Fluent::ConfigError, "Invalid contents (not object) in plugin redis storage: '#{@path}'" unless data.is_a?(Hash) rescue => e log.error "failed to read data from plugin redis storage", path: @path, error: e raise Fluent::ConfigError, "Unexpected error: failed to read data from plugin redis storage: '#{@path}'" end end end
delete(key)
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# File lib/fluent/plugin/storage_redis.rb, line 107 def delete(key) @store.delete(key.to_s) end
fetch(key, defval)
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# File lib/fluent/plugin/storage_redis.rb, line 99 def fetch(key, defval) @store.fetch(key.to_s, defval) end
get(key)
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# File lib/fluent/plugin/storage_redis.rb, line 95 def get(key) @store[key.to_s] end
load()
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# File lib/fluent/plugin/storage_redis.rb, line 65 def load begin json_string = @redis.get(@path) json_string ||= "{}" # for ttl support. json = Yajl::Parser.parse(json_string) unless json.is_a?(Hash) log.error "broken content for plugin storage (Hash required: ignored)", type: json.class log.debug "broken content", content: json_string return end @store = json rescue => e log.error "failed to load data for plugin storage from redis", path: @path, error: e end end
multi_workers_ready?()
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# File lib/fluent/plugin/storage_redis.rb, line 61 def multi_workers_ready? true end
put(key, value)
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# File lib/fluent/plugin/storage_redis.rb, line 103 def put(key, value) @store[key.to_s] = value end
save()
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# File lib/fluent/plugin/storage_redis.rb, line 81 def save begin json_string = Yajl::Encoder.encode(@store) @redis.pipelined { @redis.multi do @redis.set(@path, json_string) @redis.expire(@path, @ttl) if @ttl > 0 end } rescue => e log.error "failed to save data for plugin storage to redis", path: @path, error: e end end
update(key, &block)
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# File lib/fluent/plugin/storage_redis.rb, line 111 def update(key, &block) @store[key.to_s] = block.call(@store[key.to_s]) end