Logging exceptions root cause first
The 0.9.30 release of Logback logging library brings new awesome feature: logging stack traces starting from root (innermost) exception rather than from the outermost one. Of course my excitement has nothing to do with the fact that I contributed this feature... To paraphrase Cecil B. de Mille: “The way to make a blog post is to begin with a stack trace and work up to a climax†- here it goes: The
10分ãらã„ã§å¦ã¹ã‚‹Symfony2 〜自分ã®loggerã‚’è¨å®šã—ã¦ã¿ã‚‹ç·¨ã€œ - taka512's blog
ãªã‚“ã¨ãªãloggerã«æ…£ã‚Œã¦ãã¾ã—ãŸãŒè¤‡æ•°ãƒ•ã‚¡ã‚¤ãƒ«ã«å‡ºåŠ›ã‚’ã ã—ãŸã„時ã®è¨å®šã«ã¤ã„ã¦ã€ã‚‚ã‚„ã‚‚ã‚„ã—ã¦ã¾ã—ãŸã€‚ (åŒã˜ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’複数出力ã™ã‚‹å ´åˆã¯config.ymlã®monologé …ç›®ã«è¨å®šã‚’è¿½åŠ ã™ã‚Œã°è‰¯ã„ã§ã™ãŒã€apiã®å…¥å‡ºåŠ›å€¤ã¯Aファイルã€ã‚¢ãƒ—リケーションã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã¯Bファイルã¿ãŸã„ã«ç”¨é€”ã«ã‚ˆã£ã¦å‡ºåŠ›ã‚’分ã‘ãŸã„å ´åˆã§ã™ã€‚) ãã‚“ãªæ™‚ã«ãƒ¦ãƒ¼ã‚¶ä¼šã®MLã§fivestarã•ã‚“ãŒå›žç”ã—ã¦ãŸã®ã‚’見ã‹ã‘ã¦ã€ã•ã£ããã‚ã‚ŠãŒã¦ã‡ã‚ã‚ŠãŒã¦ã‡ã¨æ¶™ã—ãªãŒã‚‰å¦ã‚“ã メモã§ã™ã€‚ $ vi app/config/service.yml taka512.api.input.logger: class: Monolog\Logger arguments: - api.input calls: - [ pushHandler, [ @taka512.api.input.logger.handler ] ] taka51
Proguard を利用ã—ã¦ãƒªãƒªãƒ¼ã‚¹ apk ã‹ã‚‰ãƒã‚°å‡ºåŠ›ã‚’ストリップã™ã‚‹æ–¹æ³• & ベンãƒãƒžãƒ¼ã‚¯ã‚’ã¨ã£ã¦ã¿ãŸ - sandbox
ã¯ã˜ã‚㫠皆ã•ã‚“㯠Android アプリã«ãƒã‚°å‡ºåŠ›ã‚’ã©ã®ç¨‹åº¦ä»•è¾¼ã‚“ã§ã„ã‚‹ã§ã—ょã†ã‹ã€‚ é©åˆ‡ã«ãƒã‚°å‡ºåŠ›ãŒæ–½ã•ã‚ŒãŸã‚¢ãƒ—リã¯ã€å•é¡Œè¿½è·¡ãŒã—ã‚„ã™ã„ã§ã™ã—ã€ã‚ã®ç³žé‡ã„デãƒãƒƒã‚¬ã‚’èµ·å‹•ã—ãªãã¦æ¸ˆã‚€äº‹ãŒå¤šã„ã§ã™ã€‚ 個人的ã«ã¯ã€verbose or debug レベルã§ã¯ã€ãµã‚“ã ã‚“ã«ãƒã‚°å‡ºåŠ›ã‚’仕込ã¿ãŸã„ã¨è€ƒãˆã¦ã„ã¾ã™ãŒã€ã‚ã¾ã‚Šãƒã‚°ã‚’仕込ã¿ãŸãŒã‚‰ãªã„人ãŒã„ã‚‹ã®ã‚‚事実ã§ã™ã€‚ ãƒã‚°å‡ºåŠ›æ™®åŠå§”員会(会員1å)ã®å¸‚å ´èª¿æŸ»çµæžœã§ã¯ã€ãã®ç†ç”±ã¨ã—ã¦å¤§ãã下記ã®2ã¤ãŒã‚る様ã§ã—ãŸã€‚ 標準㮠Android Log ã®ä»•æ§˜ä¸Šã€ãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸ apk ã§ã‚‚ãƒã‚°ãŒã™ã¹ã¦å‚ç…§ã§ãã¦ã—ã¾ã† = 気軽ã«å†…部データã®ãƒã‚°å‡ºåŠ›ã‚’書ã‘ãªã„ ãƒã‚°å‡ºåŠ›ã«ã‚ˆã‚‹ãƒ‘フォーマンスã®ä½Žä¸‹ã®æ‡¸å¿µ ã“れらã®å•é¡Œã¸ã®ã‚½ãƒªãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã¨ã—ã¦ã¯ã„ãã¤ã‹æ–¹æ³•ãŒã‚ã‚Šã¾ã™ãŒã€ã“ã®è¨˜äº‹ã§ã¯ proguard を利用ã—ãŸä¸‹è¨˜ã®æ–¹æ³•ã‚’検証ã—ã¦ã¿ã¾ã—ãŸã€‚ ãƒã‚°ãŒè¦‹ãˆã¦ã—ã¾ã† →
Aspect Oriented Programming("AOP") in Android - _development,
Aspect Oritented Programming("AOP")ã¨ã¯ï¼Ÿ AOP(Aspect Oritented Programming, アスペクト指å‘プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°)ã¯ã€OOP(Object Oriented Programming, オブジェクト指å‘プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°)ã§è¡¨ç¾ã•ã‚ŒãŸã‚¯ãƒ©ã‚¹ã‚’横æ–("cross-cutting")ã™ã‚‹ç‰¹æ€§ã‚’表ç¾ã™ã‚‹ãŸã‚ã«è€ƒæ¡ˆã•ã‚Œã¾ã—ãŸã€‚ ãŸã¨ãˆã°ã€ãƒã‚®ãƒ³ã‚°ã®ã‚ˆã†ãªãƒ¡ã‚½ãƒƒãƒ‰å‘¼ã³å‡ºã—ã®ãƒˆãƒ©ãƒƒã‚ングã¯ãƒ—ãƒã‚°ãƒ©ãƒ 全体ã§å…±é€šã—ãŸç‰¹æ€§ã§ã™ãŒã€ã‚¯ãƒ©ã‚¹ã¨ã—ã¦è¡¨ç¾ã•ã‚ŒãŸç‰¹æ€§ã¨ã¯ã€è»¸ã®ç•°ãªã‚‹ç‰¹æ€§ã§ã™ã€‚ OOPã®ã¿ã«é ¼ã‚‹å ´åˆã€Templateパターンã€Proxyパターンãªã©ã®ãƒ‡ã‚¶ã‚¤ãƒ³ãƒ‘ターンを使ã£ã¦ä½“ç³»ã ã£ãŸãƒã‚®ãƒ³ã‚°ã‚’è¡Œã£ãŸã‚Šã—ã¾ã™ã€‚ã¾ãŸã€å‡¦ç†ã®è¦æ‰€ã§ãƒã‚®ãƒ³ã‚°ã‚³ãƒ¼ãƒ‰ã‚’直接記述ã—ãŸã‚Šã‚‚ã—ã¾ã™ã€‚ ã“れらã¯ã€æœ¬æ¥çš„ã«ã¯ã‚¯ãƒ©ã‚¹ã«å®Ÿè£…ã•ã‚Œã‚‹ã¹ã処ç†ã¨ã¯ç„¡é–¢ä¿‚ã§ã‚ã‚‹ã“ã¨ã¯æ˜Žç™½ã§ã—ょã†ã€‚
ITサーãƒãƒ»ã‚½ãƒªãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ | Splunk
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Scala: What logging library to use?
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