| 1 | _ = require 'underscore'
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| 2 | adaptersFactory = require('./logasm/adapters')
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| 3 | preprocessorsFactory = require('./logasm/preprocessors')
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| 4 |
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| 5 | class Logasm
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| 6 | @build: (serviceName, loggersConfig, preprocessorsConfig = {}) ->
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| 7 | loggersConfig = {stdout: {}} if loggersConfig is undefined
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| 8 | adapters = for type, args of loggersConfig
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| 9 | adaptersFactory.getAdapter(type, serviceName, args)
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| 10 | preprocessors = for type, args of preprocessorsConfig
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| 11 | preprocessorsFactory.getPreprocessor(type, args)
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| 12 |
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| 13 | new Logasm(adapters, preprocessors)
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| 14 |
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| 15 | constructor:(@adapters, @preprocessors) ->
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| 16 |
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| 17 | silly: =>
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| 18 | @log 'silly', arguments
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| 19 |
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| 20 | debug: =>
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| 21 | @log 'debug', arguments
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| 22 |
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| 23 | verbose: =>
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| 24 | @log 'verbose', arguments
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| 25 |
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| 26 | info: =>
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| 27 | @log 'info', arguments
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| 28 |
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| 29 | warn: =>
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| 30 | @log 'warn', arguments
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| 31 |
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| 32 | error: =>
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| 33 | @log 'error', arguments
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| 34 |
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| 35 | log: (level, args) =>
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| 36 | data = @parseLogData.apply(@, args)
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| 37 | processedData = @preprocess(data)
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| 38 | for adapter in @adapters
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| 39 | adapter.log level, processedData
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| 40 |
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| 41 | preprocess: (data) =>
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| 42 | _.reduce(@preprocessors, (processedData, preprocessor) =>
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| 43 | preprocessor.process(processedData)
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| 44 | , data)
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| 45 |
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| 46 | parseLogData: (message, metadata) ->
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| 47 | if @isHash(message)
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| 48 | message
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| 49 | else
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| 50 | data = {}
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| 51 |
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| 52 | if metadata instanceof Error
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| 53 | data['error'] = metadata.toString()
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| 54 | data['error.stack_trace'] = metadata.stack if metadata.stack
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| 55 | else
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| 56 | _.extend(data, metadata)
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| 57 |
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| 58 | if message instanceof Error
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| 59 | data['error'] = message.toString()
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| 60 | data['error.stack_trace'] = message.stack if message.stack
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| 61 |
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| 62 | data['message'] = message
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| 63 | data
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| 64 |
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| 65 | isHash: (obj) =>
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| 66 | return false unless obj instanceof Object
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| 67 | if Object.keys(obj).length then true else false
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| 68 |
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| 69 | module.exports = Logasm
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