Class: ZabbixManager::Triggers

Inherits:
Basic
  • Object
show all
Defined in:
lib/zabbix_manager/classes/triggers.rb,
lib/zabbix_manager/classes/unusable.rb

Instance Method Summary collapse

Methods inherited from Basic

#add, #all, #create, #delete, #destroy, #get, #get_full_data, #get_id, #get_ids, #get_ids_by_identify, #get_key_ids, #get_key_ids_by_identify, #get_or_create_keys, #get_raw, #hash_equals?, #initialize, #key, #keys, #log, #merge_hashes, #normalize_array, #normalize_hash, #parse_keys, #request_raw, #symbolize_keys, #update

Constructor Details

This class inherits a constructor from ZabbixManager::Basic

Instance Method Details

#add_trigger_dependency(triggerid, depend_on_trigger_id) ⇒ Object

使用 Zabbix API 添加触发器依赖关系



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# File 'lib/zabbix_manager/classes/triggers.rb', line 93

def add_trigger_dependency(triggerid, depend_on_trigger_id)
  log "[DEBUG] 调用 add_trigger_dependency 方法，参数: #{triggerid} #{depend_on_trigger_id}"

  result = @client.api_request(
    method: "trigger.adddependencies",
    params: {
      triggerid:          triggerid,
      dependsOnTriggerid: depend_on_trigger_id
    }
  )
  result.empty? ? nil : result["triggerids"]
end

#create_or_update(data) ⇒ Object

使用 Zabbix API 创建或更新触发器对象



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# File 'lib/zabbix_manager/classes/triggers.rb', line 87

def create_or_update(data)
  triggerid = get_id(description: data[:description], hostid: data[:hostid])
  triggerid ? update(data.merge(triggerid: triggerid)) : create(data)
end

#default_options ⇒ Object

创建 Zabbix 触发器的默认选项



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# File 'lib/zabbix_manager/classes/triggers.rb', line 16

def default_options
  {
    recovery_mode: 1,
    type:          0,
    manual_close:  1
  }
end

#dump_by_id(data) ⇒ Object

通过键值对从 Zabbix API 转储触发器对象数据



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# File 'lib/zabbix_manager/classes/triggers.rb', line 25

def dump_by_id(data)
  log "[DEBUG] 调用 dump_by_id 方法，参数: #{data.inspect}"

  get_raw(
    {
      triggerids:       data[keys.to_sym],
      output:           "extend",
      select_items:     "extend",
      select_functions: "extend"
    }
  )
end

#get_or_create(data) ⇒ Object

通过 Zabbix API 获取或创建触发器对象



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# File 'lib/zabbix_manager/classes/triggers.rb', line 76

def get_or_create(data)
  log "[DEBUG] 调用 #{method_name}.get_or_create 方法，参数: #{data.inspect}"

  if (id = get_id(description: data[:description], hostid: data[:hostid]))
    id
  else
    create(data)
  end
end

#identify ⇒ Object

用于通过 Zabbix API 标识特定触发器对象的 id 字段名称



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# File 'lib/zabbix_manager/classes/triggers.rb', line 11

def identify
  "description"
end

#method_name ⇒ Object

与 Zabbix API 交互的触发器方法名称



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# File 'lib/zabbix_manager/classes/triggers.rb', line 6

def method_name
  "trigger"
end

#safe_update(data) ⇒ Object

安全地使用 Zabbix API 更新触发器对象，通过删除和替换触发器



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# File 'lib/zabbix_manager/classes/triggers.rb', line 39

def safe_update(data)
  log "[DEBUG] 调用 safe_update 方法，参数: #{data.inspect}"

  dump    = {}
  item_id = data[key.to_sym].to_i
  dump_by_id(key.to_sym => data[key.to_sym]).each do |item|
    dump = symbolize_keys(item) if item[key].to_i == data[key.to_sym].to_i
  end

  expression        = "#{dump[:items][0][:key_]}.#{dump[:functions][0][:function]}(#{dump[:functions][0][:parameter]})"
  dump[:expression] = dump[:expression].gsub(/\{(\d*)\}/, "{#{expression}}") # TODO: ugly regexp
  dump.delete(:functions)
  dump.delete(:items)

  old_expression    = data[:expression]
  data[:expression] = data[:expression].gsub(/\{.*:/, "{") # TODO: ugly regexp
  data.delete(:templateid)

  log "[DEBUG] expression: #{dump[:expression]}\n data: #{data[:expression]}"

  if hash_equals?(dump, data)
    log "[DEBUG] 键 #{dump} 和 #{data} 相等，跳过 safe_update"
    item_id
  else
    data[:expression] = old_expression
    # disable old trigger
    log "[DEBUG] disable :" + @client.api_request(method: "#{method_name}.update",
                                                  params: [{
                                                             triggerid: data[:triggerid], status: "1"
                                                           }]).inspect
    # create new trigger
    data.delete(:triggerid)
    create(data)
  end
end