使用Logstash 1.4.2,我的字段myfield
是我的JSON文档中的布尔值。
检查它是否存在(不关心布尔值)我用过:
if[myfield] { ...exists... } else { ...doesn't exist... }
测试此条件语句的结果是:
[myfield] does not exist --> false
[myfield] exists, is true --> true
[myfield] exists, is false --> false //expected true because the field exists
检查布尔值,而不是存在。
如何检查是否存在布尔字段?
答案 0 :(得分:3)
有点蹩脚,它不能正常工作,但你可以像这样破解 - 添加布尔值的字符串表示,与字符串进行比较,然后删除添加的字段:
filter {
mutate {
add_field => { "test" => "%{boolean}" }
}
if [test] == 'true' or [test] == 'false' {
// field is present and set right
} else {
// field isn't present or set to something other than true/false
}
mutate {
remove_field => [ "test" ]
}
}
答案 1 :(得分:1)
您可以使用Logstash红宝石插件。
filter {
ruby {
code => '
myfield= event.get("[myfield]")
if !myfield.nil?
event.set("[myfield]", "some_value_1")
else
event.set("[myfield]", "some_value_2")
end
'
}
}