| -- |
| -- Licensed to the Apache Software Foundation (ASF) under one or more |
| -- contributor license agreements. See the NOTICE file distributed with |
| -- this work for additional information regarding copyright ownership. |
| -- The ASF licenses this file to You under the Apache License, Version 2.0 |
| -- (the "License"); you may not use this file except in compliance with |
| -- the License. You may obtain a copy of the License at |
| -- |
| -- http://www.apache.org/licenses/LICENSE-2.0 |
| -- |
| -- Unless required by applicable law or agreed to in writing, software |
| -- distributed under the License is distributed on an "AS IS" BASIS, |
| -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| -- See the License for the specific language governing permissions and |
| -- limitations under the License. |
| -- |
| local core = require("apisix.core") |
| local batch_processor = require("apisix.utils.batch-processor") |
| local timer_at = ngx.timer.at |
| local pairs = pairs |
| local setmetatable = setmetatable |
| |
| |
| local _M = {} |
| local mt = { __index = _M } |
| |
| |
| function _M.new(name) |
| return setmetatable({ |
| stale_timer_running = false, |
| buffers = {}, |
| name = name, |
| }, mt) |
| end |
| |
| |
| function _M:wrap_schema(schema) |
| local bp_schema = core.table.deepcopy(batch_processor.schema) |
| local properties = schema.properties |
| for k, v in pairs(bp_schema.properties) do |
| if not properties[k] then |
| properties[k] = v |
| end |
| -- don't touch if the plugin overrides the property |
| end |
| |
| properties.name.default = self.name |
| return schema |
| end |
| |
| |
| -- remove stale objects from the memory after timer expires |
| local function remove_stale_objects(premature, self) |
| if premature then |
| return |
| end |
| |
| for key, batch in pairs(self.buffers) do |
| if #batch.entry_buffer.entries == 0 and #batch.batch_to_process == 0 then |
| core.log.warn("removing batch processor stale object, conf: ", |
| core.json.delay_encode(key)) |
| self.buffers[key] = nil |
| end |
| end |
| |
| self.stale_timer_running = false |
| end |
| |
| |
| local check_stale |
| do |
| local interval = 1800 |
| |
| function check_stale(self) |
| if not self.stale_timer_running then |
| -- run the timer every 30 mins if any log is present |
| timer_at(interval, remove_stale_objects, self) |
| self.stale_timer_running = true |
| end |
| end |
| |
| function _M.set_check_stale_interval(time) |
| interval = time |
| end |
| end |
| |
| |
| function _M:add_entry(conf, entry) |
| check_stale(self) |
| |
| local log_buffer = self.buffers[conf] |
| if not log_buffer then |
| return false |
| end |
| |
| log_buffer:push(entry) |
| return true |
| end |
| |
| |
| function _M:add_entry_to_new_processor(conf, entry, ctx, func) |
| check_stale(self) |
| |
| local config = { |
| name = conf.name, |
| batch_max_size = conf.batch_max_size, |
| max_retry_count = conf.max_retry_count, |
| retry_delay = conf.retry_delay, |
| buffer_duration = conf.buffer_duration, |
| inactive_timeout = conf.inactive_timeout, |
| route_id = ctx.var.route_id, |
| server_addr = ctx.var.server_addr, |
| } |
| |
| local log_buffer, err = batch_processor:new(func, config) |
| if not log_buffer then |
| core.log.error("error when creating the batch processor: ", err) |
| return false |
| end |
| |
| log_buffer:push(entry) |
| self.buffers[conf] = log_buffer |
| return true |
| end |
| |
| |
| return _M |