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log.clj
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log.clj
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(ns
^{:doc "Random utils, opinionated logging support functions."
:author "Paweł Wilk"
:added "1.0.0"}
io.randomseed.utils.log
(:require [clojure.string :as str]
[trptr.java-wrapper.locale :as l]
[tick.core :as t]
[io.randomseed.utils :as util]
[io.randomseed.utils.fs :as fs]
[io.randomseed.utils.map :as map]
[cheshire.core :as json]
[cheshire.parse :as cp]
[unilog.config :as unilog]
[cambium.codec :as codec]
[cambium.core :as log]
[cambium.mdc :as mlog]
[logback-bundle.json.flat-layout :as flat]
[buddy.core.hash :as hash]
[buddy.core.codecs :as codecs])
(:import [logback_bundle.json FlatJsonLayout ValueDecoder]
[ch.qos.logback.contrib.jackson JacksonJsonFormatter]
[ch.qos.logback.core.encoder LayoutWrappingEncoder]
[ch.qos.logback.contrib.json.classic JsonLayout]
[ch.qos.logback.classic.filter ThresholdFilter]
[ch.qos.logback.classic.encoder PatternLayoutEncoder]
[ch.qos.logback.core ConsoleAppender]
[java.nio.charset Charset]))
;;
;; Flat JSON decoder configuration
;;
(defn initialize-json-decoder!
[]
(alter-var-root #'cp/*use-bigdecimals?* (constantly true))
(flat/set-decoder! codec/destringify-val)
(FlatJsonLayout/setGlobalDecoder
(reify ValueDecoder
(decode [this encoded-value]
(json/parse-string encoded-value)))))
;;
;; Custom encoders
;;
(defmethod unilog/build-encoder :pattern-cool
[{:keys [pattern] :as config}]
(let [encoder (doto (PatternLayoutEncoder.)
(.setCharset (Charset/forName "UTF-8"))
(.setPattern (or pattern unilog/default-pattern)))]
(assoc config :encoder encoder)))
(defmethod unilog/build-encoder :json-console
[config]
(assoc config :encoder (doto (LayoutWrappingEncoder.)
(.setCharset (Charset/forName "UTF-8"))
(.setLayout (doto (FlatJsonLayout.)
(.setIncludeMDC true)
(.setIncludeException true)
(.setAppendLineSeparator true)
(.setTimestampFormatTimezoneId "Etc/UTC")
(.setTimestampFormat "%date{yyyy-MM-dd HH:mm:ss','SSS'Z', UTC}")
(.setJsonFormatter (doto (JacksonJsonFormatter.)
(.setPrettyPrint true))))))))
(defmethod unilog/build-encoder :json-log
[config]
(assoc config :encoder (doto (LayoutWrappingEncoder.)
(.setCharset (Charset/forName "UTF-8"))
(.setLayout (doto (FlatJsonLayout.)
(.setIncludeMDC true)
(.setIncludeException true)
(.setAppendLineSeparator true)
(.setTimestampFormatTimezoneId "Etc/UTC")
(.setJsonFormatter (doto (JacksonJsonFormatter.)
(.setPrettyPrint false))))))))
;;
;; Custom appenders
;;
(defmethod unilog/build-appender :console-info
[config]
(assoc config :appender (doto (ConsoleAppender.)
(.setWithJansi true)
(.addFilter (doto (ThresholdFilter.)
(.setLevel "INFO")
(.start))))))
;;
;; Logging wrappers
;;
(defmacro log-context
[context & body]
(apply #'log/with-logging-context &form &env context body))
(defmacro with-ctx
[context & body]
(apply #'log/with-logging-context &form &env context body))
(defmacro log
([level msg-or-throwable] (#'log/log &form &env level msg-or-throwable))
([level mdc throwable msg] (#'log/log &form &env level mdc throwable msg))
([logger level msg-or-throwable] (#'log/log &form &env logger level msg-or-throwable))
([logger level mdc-or-throwable throwable msg]
(#'log/log &form &env logger level mdc-or-throwable throwable msg)))
(defmacro trace
([msg-or-throwable] (#'log/trace &form &env msg-or-throwable))
([mdc-or-throwable msg] (#'log/trace &form &env mdc-or-throwable msg))
([mdc throwable msg] (#'log/trace &form &env mdc throwable msg)))
(defmacro debug
([msg-or-throwable] (#'log/debug &form &env msg-or-throwable))
([mdc-or-throwable msg] (#'log/debug &form &env mdc-or-throwable msg))
([mdc throwable msg] (#'log/debug &form &env mdc throwable msg)))
(defmacro info
([msg-or-throwable] (#'log/info &form &env msg-or-throwable))
([mdc-or-throwable msg] (#'log/info &form &env mdc-or-throwable msg))
([mdc throwable msg] (#'log/info &form &env mdc throwable msg)))
(defmacro warn
([msg-or-throwable] (#'log/warn &form &env msg-or-throwable))
([mdc-or-throwable msg] (#'log/warn &form &env mdc-or-throwable msg))
([mdc throwable msg] (#'log/warn &form &env mdc throwable msg)))
(defmacro warning
([msg-or-throwable] (#'log/warn &form &env msg-or-throwable))
([mdc-or-throwable msg] (#'log/warn &form &env mdc-or-throwable msg))
([mdc throwable msg] (#'log/warn &form &env mdc throwable msg)))
(defmacro error
([msg-or-throwable] (#'log/error &form &env msg-or-throwable))
([mdc-or-throwable msg] (#'log/error &form &env mdc-or-throwable msg))
([mdc throwable msg] (#'log/error &form &env mdc throwable msg)))
(defmacro fatal
([msg-or-throwable] (#'log/fatal &form &env msg-or-throwable))
([mdc-or-throwable msg] (#'log/fatal &form &env mdc-or-throwable msg))
([mdc throwable msg] (#'log/fatal &form &env mdc throwable msg)))
(defmacro msg-with-val
[msg & more]
(if more
(list 'do (#'log/info &form &env (list* #'util/some-str-spc msg (drop-last more))) (last more))
(#'log/info &form &env (list #'clojure.core/str (list #'util/some-str msg)))))
(defmacro err-with-val
[msg & more]
(if more
(list 'do (#'log/error &form &env (list* #'util/some-str-spc msg (drop-last more))) (last more))
(#'log/error &form &env (list #'clojure.core/str (list #'util/some-str msg)))))
(defmacro msg
[msg & more]
(if more
(#'log/info &form &env (list* #'util/some-str-spc msg more))
(#'log/info &form &env (list #'clojure.core/str (list #'util/some-str msg)))))
(defmacro err
[msg & more]
(if more
(#'log/error &form &env (list* #'util/some-str-spc msg more))
(#'log/error &form &env (list #'clojure.core/str (list #'util/some-str msg)))))
(defmacro wrn
[msg & more]
(if more
(#'log/warn &form &env (list* #'util/some-str-spc msg more))
(#'log/warn &form &env (list #'clojure.core/str (list #'util/some-str msg)))))
(defmacro dbg
[msg & more]
(if more
(#'log/debug &form &env (list* #'util/some-str-spc msg more))
(#'log/debug &form &env (list #'clojure.core/str (list #'util/some-str msg)))))
;;
;; Uncaught exception handler
;;
(def ^:dynamic *already-logged* false)
;; (defn- set-exception-handler!
;; []
;; (Thread/setDefaultUncaughtExceptionHandler
;; (reify Thread$UncaughtExceptionHandler
;; (uncaughtException [_ thread ex]
;; (when-not *already-logged*
;; (log/error {:thread (.getName thread)} (pr-str ex)))
;; (prn ex)))))
;; (set-exception-handler!)
;;
;; Exceptions catching loop
;;
(defmacro log-exceptions
[& body]
`(try
~@body
(catch Throwable ex#
(cambium.core/error {:exception (pr-str ex#)} (.getMessage ex#))
(binding [*already-logged* true]
(throw ex#)))))
;;
;; Context processing
;;
(defn initialize-context-transformer!
[transform-map]
(when (seq transform-map)
(alter-var-root
#'cambium.core/transform-context
(fn [_]
(fn [context]
(map/update-values-or-seqs-recur context transform-map))))))
;;
;; Logging start
;;
(defn start!
[config]
(unilog/start-logging! config))
;;
;; System handlers
;;
(def default-config {:level "info" :console true})
(defn preprocess-config
[config]
(if-some [ap (:appenders config)]
(if (:preprocessed config)
config
(assoc config
:preprocessed true
:appenders (mapv #(if (:file %) (update % :file fs/parse-java-properties) %) ap)))
config))
(defn init!
[config]
(let [config (preprocess-config config)
pname (:profile (:system config))
ctx-transformer (map/map-of-vectors-invert-flatten (:context-transformer config))]
(initialize-json-decoder!)
(initialize-context-transformer! ctx-transformer)
(start! config)))
(defn stop!
[config]
(unilog/start-logging! default-config)
default-config)