Split into files. Worked on style.
This commit is contained in:
Konstantin Mamalakis
Josh Harvey
parent
c4307cb749
commit
a3f8db79b3
4 changed files with 238 additions and 208 deletions
171
lib/ofac/data-parser.js
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171
lib/ofac/data-parser.js
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@ -0,0 +1,171 @@
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const fs = require('fs')
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const path = require('path')
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const util = require('util')
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const XmlStream = require('xml-stream')
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const nameUtils = require('./name-utils')
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const options = require('../options')
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const _ = require('lodash/fp')
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const debug_log = require('./debug') // KOSTIS TODO: remove
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const OFAC_DATA_DIR = options.ofacDataDir
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// KOSTIS TODO: get these from the document itself
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const INDIVIDUAL = '4'
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const NAME = '1403'
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const BIRTH_DATE = '8'
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const PRIMARY_LATIN = '1'
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const LAST_NAME = '1520'
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const FIRST_NAME = '1521'
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const MIDDLE_NAME = '1522'
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const MAIDEN_NAME = '1523'
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const PATRONYMIC = '91708'
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const MATRONYMIC = '91709'
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const NICKNAME = '1528'
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const partNames = new Map([
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[LAST_NAME, 'lastName'],
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[FIRST_NAME, 'firstName'],
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[MIDDLE_NAME, 'middleName'],
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[MAIDEN_NAME, 'maidenName'],
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[PATRONYMIC, 'patronymic'],
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[MATRONYMIC, 'matronymic'],
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[NICKNAME, 'nickname']
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])
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// group-id to type-id
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function processMasterNamePartGroup (groupNode) {
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const namePartGroupNode = groupNode.NamePartGroup
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const groupId = namePartGroupNode.$.ID
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const typeId = namePartGroupNode.$.NamePartTypeID
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return [groupId, typeId]
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}
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const processDocumentedNamePart = _.curry((groupTypes, namePartNode) => {
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const valueNode = namePartNode.NamePartValue
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const groupId = valueNode.$.NamePartGroupID
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const typeId = groupTypes.get(groupId)
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const partName = partNames.get(typeId)
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const value = _.lowerCase(valueNode.$text)
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return {[partName]: value}
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})
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const isLatin = _.matchesProperty(['$', 'DocNameStatusID'], PRIMARY_LATIN)
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const processAlias = _.curry((groupTypes, aliasNode) => {
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if (aliasNode.$.AliasTypeID !== NAME) return
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const getNamePart = processDocumentedNamePart(groupTypes)
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const latinNameNode = _.find(isLatin, aliasNode.DocumentedName)
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const namePartNodes = latinNameNode.DocumentedNamePart
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const nameParts = _.map(getNamePart, namePartNodes)
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const parts = _.assignAll(nameParts)
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const fullName = nameUtils.fullNameFromParts(parts)
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const phoneticParts = _.mapValues(nameUtils.phonetic, parts)
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const phoneticFullName = nameUtils.phonetic(fullName)
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return {parts, fullName, phoneticParts, phoneticFullName}
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})
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// birth date
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function processDate (dateNode) {
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const year = parseInt(dateNode.Year)
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const month = parseInt(dateNode.Month)
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const day = parseInt(dateNode.Day)
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const date = new Date(year, month - 1, day)
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return {year, month, day, date}
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}
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function processFeature (featureNode) {
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if (featureNode.$.FeatureTypeID !== BIRTH_DATE) return
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const datePeriodNode = featureNode.FeatureVersion.DatePeriod
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// Ignore the fact that both Start and end can be a range.
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// By using Start.From and End.To we use the extremes of the date-period.
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const period = {
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start: datePeriodNode.Start.From,
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end: datePeriodNode.End.To
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}
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return _.mapValues(processDate, period)
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}
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// profile
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function processProfile (profileNode) {
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if (profileNode.$.PartySubTypeID !== INDIVIDUAL) return
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const id = profileNode.$.ID
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const identityNode = profileNode.Identity
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const groupTypesEntries = _.map(processMasterNamePartGroup, identityNode.NamePartGroups.MasterNamePartGroup)
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const groupTypes = new Map(groupTypesEntries)
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const getNameParts = processAlias(groupTypes)
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const aliases = _.compact(_.map(getNameParts, identityNode.Alias))
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const birthDatePeriods = _.compact(_.map(processFeature, profileNode.Feature))
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const individual = {aliases, birthDatePeriods}
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debug_log(individual)
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return [id, individual]
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}
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function promiseParseDocument (source) {
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return new Promise((resolve, reject) => {
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const fileName = path.join(OFAC_DATA_DIR, source)
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const stream = fs.createReadStream(fileName)
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const xml = new XmlStream(stream)
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xml.on('error', err => {
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xml.pause()
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const message = `Error while parsing OFAC data source file (${source}): ${err.message()}`
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reject(new Error(message))
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})
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xml.collect('Alias')
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xml.collect('DocumentedName')
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xml.collect('DocumentedNamePart')
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xml.collect('Feature')
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xml.collect('MasterNamePartGroup')
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const individuals = []
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const collectResult = result => individuals.push(result)
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xml.on('updateElement: Profile', _.flow(processProfile, collectResult))
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xml.on('end', _.wrap(resolve, individuals))
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})
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}
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const readdir = util.promisify(fs.readdir)
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const combineAndDedupe = _.flow(
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_.flatten,
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_.compact,
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_.uniqBy(_.nth(0)),
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_.map(_.nth(1))
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)
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function parseList () {
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// NOTE: Not sure how you push code updates to existing clients. This problem
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// might pop up if new code is pushed, without re-doing setup.
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if (!OFAC_DATA_DIR) {
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const message = 'The ofacDataDir option has not been set in lamassu.json'
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return Promise.reject(new Error(message))
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}
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return readdir(OFAC_DATA_DIR)
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.then(sources => {
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const promises = _.map(promiseParseDocument, sources)
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return Promise.all(promises)
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})
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.then(combineAndDedupe)
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}
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module.exports = {parseList}
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1
lib/ofac/debug.js
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1
lib/ofac/debug.js
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@ -0,0 +1 @@
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module.exports = (...args) => console.log(require('util').inspect(args, {depth: null, colors: true}))
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@ -1,203 +1,39 @@
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const fs = require('fs')
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const path = require('path')
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const XmlStream = require('xml-stream')
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const dataParser = require('./data-paraser')
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const nameUtils = require('./name-utils')
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const jaroWinkler = require('talisman/metrics/distance/jaro-winkler')
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const metaphone = require('talisman/phonetics/metaphone')
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const options = require('../options')
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const logger = require('../logger')
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const _ = require('lodash/fp')
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// PARSING
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const debug_log = require('./debug') // KOSTIS TODO: remove
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const OFAC_DATA_DIR = options.ofacDataDir
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// TODO: get these from the document itself
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const INDIVIDUAL = '4'
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const NAME = '1403'
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const BIRTH_DATE = '8'
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const LAST_NAME = '1520'
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const FIRST_NAME = '1521'
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const MIDDLE_NAME = '1522'
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const MAIDEN_NAME = '1523'
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const PATRONYMIC = '91708'
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const MATRONYMIC = '91709'
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const NICKNAME = '1528'
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const partNames = new Map([
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[LAST_NAME, 'lastName'],
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[FIRST_NAME, 'firstName'],
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[MIDDLE_NAME, 'middleName'],
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[MAIDEN_NAME, 'maidenName'],
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[PATRONYMIC, 'patronymic'],
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[MATRONYMIC, 'matronymic'],
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[NICKNAME, 'nickname']
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])
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// TODO: get this from admin configuration
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const SIMILARITY_THRESHOLD = 0.5
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// TODO: remove
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const debug_log = (...args) => console.log(require('util').inspect(args, {depth: null, colors: true}))
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let individuals = []
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const individualsById = new Map()
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// group-id to type-id
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function processMasterNamePartGroup (groupNode) {
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const namePartGroupNode = groupNode.NamePartGroup
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const groupId = namePartGroupNode.$.ID
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const typeId = namePartGroupNode.$.NamePartTypeID
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return [groupId, typeId]
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}
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// name parts
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function makeFullNameFromParts (nameParts) {
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// Combine name-parts in a standared order.
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const namePartPairs = _.toPairs(nameParts)
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const sortedPairs = _.sortBy(_.nth(0), namePartPairs)
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return _.map(_.nth(1), sortedPairs).join(' ')
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}
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function makePhonetic (name) {
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return metaphone(name)
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}
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function processDocumentedNamePart (groupTypes) {
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return function (namePartNode) {
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const valueNode = namePartNode.NamePartValue
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const groupId = valueNode.$.NamePartGroupID
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const typeId = groupTypes.get(groupId)
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const partName = partNames.get(typeId)
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const value = valueNode.$text
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return {[partName]: value}
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}
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}
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function processAlias (groupTypes) {
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return function (aliasNode) {
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if (aliasNode.$.AliasTypeID !== NAME) return
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const nameParts = _.map(processDocumentedNamePart(groupTypes), aliasNode.DocumentedName.DocumentedNamePart)
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const parts = _.assignAll(nameParts)
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const fullName = makeFullNameFromParts(parts)
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const phoneticParts = _.mapValues(makePhonetic, parts)
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const phoneticFullName = makePhonetic(fullName)
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return {parts, fullName, phoneticParts, phoneticFullName}
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}
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}
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// birth date
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function processDate (dateNode) {
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const year = parseInt(dateNode.Year)
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const month = parseInt(dateNode.Month)
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const day = parseInt(dateNode.Day)
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const date = new Date(year, month - 1, day)
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return {year, month, day, date}
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}
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function processFeature (featureNode) {
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if (featureNode.$.FeatureTypeID !== BIRTH_DATE) return
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const datePeriodNode = featureNode.FeatureVersion.DatePeriod
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// Ignore the fact that both Start and end can be a range.
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// By using Start.From and End.To we use the extremes of the date-period.
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const period = {
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start: datePeriodNode.Start.From,
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end: datePeriodNode.End.To
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}
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return _.mapValues(processDate, period)
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}
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// profile
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function processProfile (profileNode) {
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if (profileNode.$.PartySubTypeID !== INDIVIDUAL) return
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const id = profileNode.$.ID
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const identityNode = profileNode.Identity
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const groupTypesEntries = _.map(processMasterNamePartGroup, identityNode.NamePartGroups.MasterNamePartGroup)
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const groupTypes = new Map(groupTypesEntries)
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const aliases = _.compact(_.map(processAlias(groupTypes), identityNode.Alias))
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const birthDatePeriods = _.compact(_.map(processFeature, profileNode.Feature))
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const individual = {aliases, birthDatePeriods}
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individualsById.set(id, individual)
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debug_log(individual)
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}
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function promiseParseDocument (source) {
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return new Promise(resolve => {
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const fileName = path.join(OFAC_DATA_DIR, source)
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const stream = fs.createReadStream(fileName)
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const xml = new XmlStream(stream)
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xml.on('error', error => {
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logger.error('Error while parsing the OFAC data sources.')
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logger.error(error)
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xml.pause()
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resolve()
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})
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xml.collect('Alias')
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xml.collect('DocumentedNamePart')
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xml.collect('Feature')
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xml.collect('MasterNamePartGroup')
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xml.on('updateElement: Profile', processProfile)
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xml.on('end', resolve)
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})
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}
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const individuals = []
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function load () {
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// NOTE: Not sure how you push code updates to existing clients. This problem
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// might pop up if new code is pushed, without re-doing setup.
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if (!OFAC_DATA_DIR) {
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logger.error('The ofacDataDir option has not been set in lamassu.json')
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return
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}
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individualsById.clear()
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const sources = fs.readdirSync(OFAC_DATA_DIR)
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const promises = _.map(promiseParseDocument, sources)
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return Promise.all(promises)
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.then(() => {
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individuals = Array.from(individualsById.values())
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})
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const newList = Array.from(dataParser.parseList())
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const oldLength = individuals.length
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individuals.splice(0, oldLength, newList)
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}
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load()
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// MATCHING
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// birth date
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function isDateWithinTwoYearsOfPeriod (targetDate) {
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return function (period) {
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function isDateWithinSomeYearsOfPeriod (period, date, years) {
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const startDate = new Date(period.from.date)
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const startYear = startDate.getFullYear()
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startDate.setFullYear(startYear - 2)
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startDate.setFullYear(startYear - years)
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const endDate = new Date(period.to.date)
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const endYear = endDate.getFullYear()
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endDate.setFullYear(endYear + 2)
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endDate.setFullYear(endYear + years)
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return (startDate < targetDate && targetDate < endDate)
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}
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return (startDate < date && date < endDate)
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}
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function isBornWithinTwoYears (individual, dateObject) {
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return _.some(isDateWithinTwoYearsOfPeriod(dateObject.date), individual.birthDatePeriods)
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const isWithinTwoYears = _.partialRight(isDateWithinSomeYearsOfPeriod, [dateObject.date, 2])
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return _.some(isWithinTwoYears, individual.birthDatePeriods)
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}
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// exact match
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@ -221,36 +57,30 @@ function calcPhoneticMatchScore (candidatePhoneticFullName) {
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// NOTE: I'm still not 100% on what matching algorithm is the best choice.
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// I just experiment with a few metrics for now.
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function doesMatch (nameParts, fullName, phoneticParts, phoneticFullName, birthDate) {
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return function (individual) {
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const similarity = _.curry((candidate, individual) => {
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// Calculate if his birth date is within two years of the given date.
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// If an individual has multiple birth-date periods, return wether any are
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// within two years. Reject individuals who don't match this criterion.
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if (individual.birthDatePeriods.length && !isBornWithinTwoYears(individual, birthDate)) return false
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if (individual.birthDatePeriods.length && !isBornWithinTwoYears(individual, candidate.birthDate)) return 0
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// Calculate the Jaro-Winkler similarity of the full name.
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// If an individual has multiple aliases, use the maximum score.
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const exactMatchScore = _.max(_.map(calcExactMatchScore(fullName), individual.aliases))
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if (exactMatchScore > SIMILARITY_THRESHOLD) return true
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const exactMatchScore = _.max(_.map(calcExactMatchScore(candidate.fullName), individual.aliases))
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// Calculate the Jaro-Winkler similarity of the phonetic representation of the full name.
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// This should approximate the phonetic similarity of the two names.
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// If an individual has multiple aliases, use the maximum score.
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const phoneticMatchScore = _.max(_.map(calcPhoneticMatchScore(phoneticFullName), individual.aliases))
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const phoneticMatchScore = _.max(_.map(calcPhoneticMatchScore(candidate.phoneticFullName), individual.aliases))
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if (phoneticMatchScore > SIMILARITY_THRESHOLD) return true
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return _.max([exactMatchScore, phoneticMatchScore])
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})
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return false
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}
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}
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function match (nameParts, birthDateString) {
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function match (parts, birthDateString) {
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// nameParts should be an object like {firstName: "John", lastName: "Doe", ...}
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const fullName = makeFullNameFromParts(nameParts)
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const fullName = nameUtils.fullNameFromParts(parts)
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const phoneticParts = _.mapValues(makePhonetic, nameParts)
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const phoneticFullName = makePhonetic(fullName)
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const phoneticParts = _.mapValues(nameUtils.phonetic, parts)
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const phoneticFullName = nameUtils.phonetic(fullName)
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// birthDateString is in YYYYMMDD format
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const year = parseInt(birthDateString.slice(0, 4))
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@ -260,7 +90,10 @@ function match (nameParts, birthDateString) {
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const birthDate = {year, month, day, date}
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return _.some(doesMatch(nameParts, fullName, phoneticParts, phoneticFullName, birthDate), individuals)
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const candidate = {parts, fullName, phoneticParts, phoneticFullName, birthDate}
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const similarToCandidate = similarity(candidate)
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return _.max(similarToCandidate, individuals)
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}
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module.exports = {load, match}
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25
lib/ofac/name-utils.js
Normal file
25
lib/ofac/name-utils.js
Normal file
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@ -0,0 +1,25 @@
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const metaphone = require('talisman/phonetics/metaphone')
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const doubleMetaphone = require('talisman/phonetics/double-metaphone')
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const _ = require('lodash/fp')
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// KOSTIS TODO: Decide on a method. Remove the others
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const phoneticMethod1 = metaphone
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const phoneticMethod2 = _.flow(doubleMetaphone, _.uniq)
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const phoneticMethod3 = _.flow(_.split(' '), _.map(phoneticMethod2))
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// Combine name-parts in a standared order.
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const fullNameFromParts = _.flow(
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_.toPairs,
|
||||
_.sortBy(_.nth(0)), // sort by part name,
|
||||
_.map(_.nth(1)), // get part value
|
||||
_.join(' ')
|
||||
)
|
||||
|
||||
module.exports = {
|
||||
fullNameFromParts,
|
||||
phonetic: phoneticMethod3
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue