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Merge pull request #121 from cfpb/milestone9
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| 'use strict'; | ||
|
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| var csv = require('csv'), | ||
| utils = require('./utils'), | ||
| hmdaRuleSpec = require('hmda-rule-spec'), | ||
| _ = require('lodash'); | ||
|
|
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| /** | ||
| * Construct a new CSVProcessor | ||
| * @param {string} year The year for the errors being exported | ||
| * @param {string} type Processor type. Valid values: 'type', 'individual' | ||
| * @constructs CSVProcessor | ||
| * @example | ||
| * var writeStream = fs.createWriteStream('example.csv'); | ||
| * var processor = new CSVProcessor('2013', 'type'); | ||
| * processor.pipe(writeStream); | ||
| * processor.write(engine.getErrors().syntactical); | ||
| * //Edit ID,Line Number,Loan Number | ||
| * //S270,2,ABCDEFG | ||
| * //... | ||
| * processor.end(); //Close the write stream, any further calls to the processor will result in an error | ||
| */ | ||
| var CSVProcessor = function(year, type) { | ||
| this.fileSpec = {'hmdaFile': hmdaRuleSpec.getFileSpec(year)}; | ||
| this.stringifier = csv.stringify(); | ||
|
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| this[type](); | ||
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| this.transformer.on('finish', function() { | ||
| this.stringifier.end(); | ||
| }.bind(this)); | ||
| }; | ||
|
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| CSVProcessor.prototype.write = function(input) { | ||
| this.transformer.write(input); | ||
| }; | ||
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| CSVProcessor.prototype.end = function() { | ||
| this.transformer.end(); | ||
| }; | ||
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| CSVProcessor.prototype.pipe = function(outputStream) { | ||
| this.stringifier.pipe(outputStream); | ||
| }; | ||
|
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| CSVProcessor.prototype.type = function() { | ||
| this.transformer = csv.transform(function(errors) { | ||
| _.each(_.keys(errors), function(id) { | ||
| var firstError = errors[id].errors[0]; | ||
| var header = ['Edit ID']; | ||
| if (firstError.lineNumber) { | ||
| header.push('Line Number'); | ||
| } | ||
| if (firstError.loanNumber || firstError.properties.loanNumber) { | ||
| header.push('Loan/Application Number'); | ||
| } | ||
|
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| this.stringifier.write(header); | ||
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| _.each(errors[id].errors, function(error) { | ||
| var line = [id]; | ||
| if (error.lineNumber) { | ||
| line.push(error.lineNumber); | ||
| } | ||
| if (error.loanNumber || error.properties.loanNumber) { | ||
| line.push(error.loanNumber || error.properties.loanNumber); | ||
| } | ||
| this.stringifier.write(line); | ||
| }.bind(this)); | ||
|
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| this.stringifier.write([]); | ||
|
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| }.bind(this)); | ||
| }.bind(this)); | ||
| }; | ||
|
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| CSVProcessor.prototype.individual = function() { | ||
| this.transformer = csv.transform(function(errors) { | ||
| _.each(_.keys(errors), function(id) { | ||
| var firstError = errors[id].errors[0]; | ||
| var errorProps = _.keys(firstError.properties); | ||
| var header = ['Edit ID']; | ||
|
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| if (firstError.lineNumber) { | ||
| header.push('Line Number'); | ||
| } | ||
| if (firstError.loanNumber) { | ||
| header.push('Loan/Application Number'); | ||
| } | ||
|
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||
| _.each(errorProps, function(property) { | ||
| var contextList = []; | ||
| if (errors[id].scope === 'ts') { | ||
| contextList.push(this.fileSpec.hmdaFile.transmittalSheet); | ||
| } | ||
| if (errors[id].scope === 'lar') { | ||
| contextList.push(this.fileSpec.hmdaFile.loanApplicationRegister); | ||
| } | ||
| contextList.push(this.fileSpec); | ||
| if (errors[id].scope === 'hmda') { | ||
| contextList.push(this.fileSpec.hmdaFile.transmittalSheet); | ||
| contextList.push(this.fileSpec.hmdaFile.loanApplicationRegister); | ||
| } | ||
| try { | ||
| var specBody = utils.resolveArg(property, contextList); | ||
| header.push(specBody.label); | ||
| } catch (err) { | ||
| header.push(property); | ||
| } | ||
| }.bind(this)); | ||
|
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| this.stringifier.write(header); | ||
|
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| _.each(errors[id].errors, function(error) { | ||
| var line = [id]; | ||
| if (error.lineNumber) { | ||
| line.push(error.lineNumber); | ||
| } | ||
| if (error.loanNumber) { | ||
| line.push(error.loanNumber); | ||
| } | ||
|
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| _.each(errorProps, function(property) { | ||
| line.push(error.properties[property]); | ||
| }); | ||
|
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| this.stringifier.write(line); | ||
| }.bind(this)); | ||
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| this.stringifier.write([]); | ||
|
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| }.bind(this)); | ||
| }.bind(this)); | ||
| }; | ||
|
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| module.exports = CSVProcessor; |
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