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source: trunk/grails-app/services/InventoryCsvService.groovy @ 482

Last change on this file since 482 was 462, checked in by gav, 15 years ago
Indicate in header that purchase order number is required during import.
File size: 40.0 KB

Rev	Line
[423]	1	import grails.util.GrailsUtil
	2	import au.com.bytecode.opencsv.CSVWriter
	3	import au.com.bytecode.opencsv.CSVReader
	4	import org.apache.commons.lang.WordUtils
	5
	6	/**
	7	* Provides some csv import/export methods.
	8	* Requires the opencsv jar to be available which is included in the grails-export plugin.
	9	*/
	10	class InventoryCsvService {
	11
	12	boolean transactional = false
	13
[441]	14	def dateUtilService
	15
[423]	16	def g = new org.codehaus.groovy.grails.plugins.web.taglib.ApplicationTagLib()
	17
	18	def sessionFactory
	19	def propertyInstanceMap = org.codehaus.groovy.grails.plugins.DomainClassGrailsPlugin.PROPERTY_INSTANCE_MAP
	20
	21	/**
	22	* Import inventory creating items as required.
	23	* @param request The http request to run getFile against.
	24	* Get file should return a csv format file containing the inventory as per template.
	25	*/
	26	def importInventory(request) {
	27	InventoryItem.withTransaction { status ->
	28	def result = [:]
	29
	30	def kByteMultiplier = 1000
[426]	31	def fileMaxSize = 800 * kByteMultiplier
[423]	32	def logFileLink = g.link(controller: "appCore", action: "appLog") {"log"}
	33
	34	def multiPartFile = request.getFile('file')
	35
	36	InputStreamReader sr = new InputStreamReader(multiPartFile.inputStream)
	37	CSVReader reader = new CSVReader(sr)
	38
	39	def fail = { Map m ->
	40	status.setRollbackOnly()
	41	reader.close()
	42	result.error = [ code: m.code, args: m.args ]
	43	return result
	44	}
	45
	46	if(!multiPartFile \|\| multiPartFile.isEmpty())
	47	return fail(code: "default.file.not.supplied")
	48
	49	if (multiPartFile.getSize() > fileMaxSize)
	50	return fail(code: "default.file.over.max.size", args: [fileMaxSize/kByteMultiplier, "kB"])
	51
	52	def line = []
	53	def lineNumber = 0
[436]	54	def maxNumberOfColumns = 25
[423]	55	def inventoryParams = [:]
	56	def inventoryProperties = ["name", "description", "comment", "unitsInStock", "reorderPoint", "recommendedReorderPoint",
	57	"unitOfMeasure", "estimatedUnitPriceAmount", "estimatedUnitPriceCurrency",
	58	"enableReorder", "inventoryLocation", "inventoryStore", "site",
	59	"inventoryGroup", "inventoryType", "averageDeliveryTime", "averageDeliveryPeriod",
[436]	60	"suppliersPartNumber", "preferredSupplier", "alternateSuppliers",
	61	"manufacturersPartNumber", "preferredManufacturer", "alternateManufacturers",
	62	"alternateItems", "spareFor"]
[423]	63
	64	def siteInstance
[436]	65	def alternateSupplierInstance
	66	def preferredSupplierInstance
[423]	67	def supplierTypeInstance
	68	def supplierTypeUnknown = SupplierType.get(1)
	69	def spareForInstance
	70	def alternateItemInstance
[436]	71	def preferredManufacturerInstance
	72	def alternateManufacturerInstance
[423]	73	def manufacturerTypeInstance
	74	def manufacturerTypeUnknown = ManufacturerType.get(1)
	75	def inventoryTypeInstance
	76	def unitOfMeasureInstance
	77	def inventoryGroupInstance
	78	def inventoryItemInstance
	79	def inventoryStoreInstance
	80	def inventoryLocationInstance
	81	def averageDeliveryPeriodInstance
	82
[436]	83	def tempPreferredSupplierItemAndType = ''
	84	def tempPreferredSupplierItem = ''
	85	def tempPreferredSupplierType = ''
	86
	87	def tempAlternateSuppliers = []
[426]	88	def tempSupplierItem = ''
	89	def tempSupplierType = ''
[423]	90	def tempSupplierItemAndType = []
[436]	91
	92	def tempPreferredManufacturerItemAndType = ''
	93	def tempPreferredManufacturerItem = ''
	94	def tempPreferredManufacturerType = ''
	95
	96	def tempAlternateManufacturers = []
[426]	97	def tempManufacturerItem = ''
	98	def tempManufacturerType = ''
[423]	99	def tempManufacturerItemAndType = []
	100
	101	def tempSpareFor = []
	102	def tempAlternateItems = []
	103
	104	def nextLine = {
	105	line = reader.readNext()
	106	lineNumber ++
	107	log.info "Processing line: " + lineNumber
	108	}
	109
	110	def parseInputList = {
[426]	111	if( (it == null) \|\| (it.trim() == '') ) return []
[423]	112	return it.split(";").collect{it.trim()}
	113	}
	114
	115	def parseItemAndType = {
	116	return it.split("@").collect{it.trim()}
	117	}
	118
	119	// Get first line.
	120	nextLine()
	121
	122	// Check for header line 1.
	123	if(line != templateHeaderLine1) {
	124	log.error "Failed to find header line 1. "
	125	log.error "Required: " + templateHeaderLine1.toString()
	126	log.error "Supplied: " + line.toString()
	127	return fail(code: "default.file.no.header")
	128	}
	129
	130	log.info "Header line found."
	131
	132	// Prepare the first body line.
	133	nextLine()
	134
	135	// Primary loop.
	136	while(line) {
	137
	138	if(line.size() > maxNumberOfColumns) {
	139	log.error "Too many columns on line: " + lineNumber
	140	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	141	}
	142
	143	// Ignore comment lines.
	144	if(line.toString().toLowerCase().contains("comment")) {
	145	log.info "Comment line found."
	146	nextLine()
	147	continue
	148	}
	149
	150	// Ignore example lines.
	151	if(line.toString().toLowerCase().contains("example")) {
	152	log.info "Example line found."
	153	nextLine()
	154	continue
	155	}
	156
	157	// Parse the line into the params map.
	158	inventoryParams = [:]
	159	line.eachWithIndex { it, j ->
	160	inventoryParams."${inventoryProperties[j]}" = it.trim()
	161	}
	162
	163	// Debug
	164	log.debug " Supplied params: "
	165	log.debug inventoryParams
	166
	167	// Ignore blank lines.
	168	if(inventoryParams.name == '') {
	169	log.info "No name found."
	170	nextLine()
	171	continue
	172	}
	173
	174	/** Prepare the params and create supporting items as required. */
	175
	176	// Site
[426]	177	inventoryParams.site = WordUtils.capitalize(inventoryParams.site)
[423]	178	siteInstance = Site.findByName(inventoryParams.site)
	179	if(!siteInstance) {
	180	siteInstance = new Site(name: inventoryParams.site)
	181	if(!siteInstance.save()) {
	182	log.error "Failed to create site on line: " + lineNumber
	183	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	184	}
	185	}
	186
	187	// InventoryStore
[426]	188	inventoryParams.inventoryStore = WordUtils.capitalizeFully(inventoryParams.inventoryStore)
[423]	189	inventoryStoreInstance = InventoryStore.findByName(inventoryParams.inventoryStore)
	190	if(!inventoryStoreInstance) {
	191	inventoryStoreInstance = new InventoryStore(name: inventoryParams.inventoryStore,
	192	site: siteInstance)
	193	if(!inventoryStoreInstance.save()) {
	194	log.error "Failed to create inventory store on line: " + lineNumber
	195	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	196	}
	197	}
	198
	199	// InventoryLocation
[426]	200	inventoryParams.inventoryLocation = WordUtils.capitalize(inventoryParams.inventoryLocation)
[423]	201	inventoryLocationInstance = InventoryLocation.findByName(inventoryParams.inventoryLocation)
	202	if(!inventoryLocationInstance) {
	203	inventoryLocationInstance = new InventoryLocation(name: inventoryParams.inventoryLocation,
	204	inventoryStore: inventoryStoreInstance)
	205	if(!inventoryLocationInstance.save()) {
	206	log.error "Failed to create inventory location on line: " + lineNumber
	207	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	208	}
	209	}
	210
	211	// InventoryGroup
[426]	212	inventoryParams.inventoryLocation = WordUtils.capitalizeFully(inventoryParams.inventoryLocation)
[423]	213	inventoryGroupInstance = InventoryGroup.findByName(inventoryParams.inventoryGroup)
	214	if(!inventoryGroupInstance) {
	215	inventoryGroupInstance = new InventoryGroup(name: inventoryParams.inventoryGroup)
	216	if(!inventoryGroupInstance.save()) {
	217	log.error "Failed to create inventory group on line: " + lineNumber
	218	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	219	}
	220	}
	221
	222	// InventoryType
[426]	223	inventoryParams.inventoryType = WordUtils.capitalizeFully(inventoryParams.inventoryType)
[423]	224	inventoryTypeInstance = InventoryType.findByName(inventoryParams.inventoryType)
	225	if(!inventoryTypeInstance) {
	226	inventoryTypeInstance = new InventoryType(name: inventoryParams.inventoryType)
	227	if(!inventoryTypeInstance.save()) {
	228	log.error "Failed to create inventory type on line: " + lineNumber
	229	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	230	}
	231	}
	232
	233	// UnitOfMeasure.
	234	unitOfMeasureInstance = UnitOfMeasure.findByName(inventoryParams.unitOfMeasure)
	235	if(!unitOfMeasureInstance) {
	236	unitOfMeasureInstance = new UnitOfMeasure(name: inventoryParams.unitOfMeasure)
	237	if(!unitOfMeasureInstance.save()) {
	238	log.error "Failed to create unit of measure on line: " + lineNumber
	239	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	240	}
	241	}
	242
	243	// AverageDeliveryPeriod.
	244	if(inventoryParams.averageDeliveryPeriod) {
	245	averageDeliveryPeriodInstance = Period.findByPeriod(inventoryParams.averageDeliveryPeriod)
	246	if(!averageDeliveryPeriodInstance) {
	247	log.error "Failed, not a valid delivery period on line: " + lineNumber
	248	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	249	}
	250	}
	251
[436]	252	// Preferred Manufacturer
	253	if(inventoryParams.preferredManufacturer) {
	254	tempPreferredManufacturerItemAndType = parseItemAndType(inventoryParams.preferredManufacturer)
	255	tempPreferredManufacturerItem = WordUtils.capitalize(tempPreferredManufacturerItemAndType[0])
	256
	257	preferredManufacturerInstance = Manufacturer.findByName(tempPreferredManufacturerItem)
	258	if(!preferredManufacturerInstance) {
	259
	260	// Manufacturer Type.
	261	if(tempPreferredManufacturerItemAndType.size == 2) {
[441]	262	tempPreferredManufacturerType = WordUtils.capitalize(tempPreferredManufacturerItemAndType[1])
[436]	263	manufacturerTypeInstance = ManufacturerType.findByName(tempPreferredManufacturerType)
	264	}
	265	else
	266	manufacturerTypeInstance = manufacturerTypeUnknown
	267	if(!manufacturerTypeInstance) {
	268	log.error "Failed to find preferred manufacturer type on line: " + lineNumber
	269	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	270	}
	271
	272	preferredManufacturerInstance = new Manufacturer(name: tempPreferredManufacturerItem,
[441]	273	manufacturerType: manufacturerTypeInstance)
[436]	274	if(!preferredManufacturerInstance.save()) {
	275	log.error "Failed to create preferred manufacturer on line: " + lineNumber
	276	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	277	}
	278	}
	279	}
	280	else
	281	preferredManufacturerInstance = null
	282
	283	// Alternate Manufacturers.
[441]	284	tempAlternateManufacturers = parseInputList(inventoryParams.alternateManufacturers)
	285	inventoryParams.alternateManufacturers = []
[423]	286
[436]	287	for(tempManufacturer in tempAlternateManufacturers) {
[423]	288	tempManufacturerItemAndType = parseItemAndType(tempManufacturer)
[426]	289	tempManufacturerItem = WordUtils.capitalizeFully(tempManufacturerItemAndType[0])
[423]	290
[441]	291	alternateManufacturerInstance = Manufacturer.findByName(tempManufacturerItem)
	292	if(!alternateManufacturerInstance) {
[423]	293
	294	// ManufacturerType.
[426]	295	if(tempManufacturerItemAndType.size == 2) {
[441]	296	tempManufacturerType = WordUtils.capitalize(tempManufacturerItemAndType[1])
[426]	297	manufacturerTypeInstance = ManufacturerType.findByName(tempManufacturerType)
	298	}
[423]	299	else
	300	manufacturerTypeInstance = manufacturerTypeUnknown
	301	if(!manufacturerTypeInstance) {
	302	log.error "Failed to find manufacturer type on line: " + lineNumber
	303	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	304	}
	305
[441]	306	alternateManufacturerInstance = new Manufacturer(name: tempManufacturerItem,
[423]	307	manufacturerType: manufacturerTypeInstance)
[441]	308	if(!alternateManufacturerInstance.save()) {
[423]	309	log.error "Failed to create manufacturers on line: " + lineNumber
	310	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	311	}
	312	}
	313
[441]	314	inventoryParams.alternateManufacturers.add(alternateManufacturerInstance)
[423]	315	}
	316
[436]	317	// Preferred Supplier
	318	if(inventoryParams.preferredSupplier) {
	319	tempPreferredSupplierItemAndType = parseItemAndType(inventoryParams.preferredSupplier)
	320	tempPreferredSupplierItem = WordUtils.capitalize(tempPreferredSupplierItemAndType[0])
[423]	321
[436]	322	preferredSupplierInstance = Supplier.findByName(tempPreferredSupplierItem)
	323	if(!preferredSupplierInstance) {
	324
	325	// SupplierType.
	326	if(tempPreferredSupplierItemAndType.size == 2) {
[441]	327	tempPreferredSupplierType = WordUtils.capitalize(tempPreferredSupplierItemAndType[1])
[436]	328	supplierTypeInstance = SupplierType.findByName(tempPreferredSupplierType)
	329	}
	330	else
	331	supplierTypeInstance = supplierTypeUnknown
	332	if(!supplierTypeInstance) {
	333	log.error "Failed to find preferred supplier type on line: " + lineNumber
	334	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	335	}
	336
	337	preferredSupplierInstance = new Supplier(name: tempPreferredSupplierItem,
	338	supplierType: supplierTypeInstance)
	339	if(!preferredSupplierInstance.save()) {
	340	log.error "Failed to create preferred supplier on line: " + lineNumber
	341	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	342	}
	343	}
	344	}
	345	else
	346	preferredSupplierInstance = null
	347
	348	// Alternate Suppliers.
	349	tempAlternateSuppliers = parseInputList(inventoryParams.alternateSuppliers)
	350	inventoryParams.alternateSuppliers = []
	351
	352	for(tempSupplier in tempAlternateSuppliers) {
[423]	353	tempSupplierItemAndType = parseItemAndType(tempSupplier)
[426]	354	tempSupplierItem = WordUtils.capitalizeFully(tempSupplierItemAndType[0])
[423]	355
[436]	356	alternateSupplierInstance = Supplier.findByName(tempSupplierItem)
	357	if(!alternateSupplierInstance) {
[423]	358
	359	// SupplierType.
[426]	360	if(tempSupplierItemAndType.size == 2) {
[441]	361	tempSupplierType = WordUtils.capitalize(tempSupplierItemAndType[1])
[426]	362	supplierTypeInstance = SupplierType.findByName(tempSupplierType)
	363	}
[423]	364	else
	365	supplierTypeInstance = supplierTypeUnknown
	366	if(!supplierTypeInstance) {
[436]	367	log.error "Failed to find alternate supplier type on line: " + lineNumber
[423]	368	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	369	}
	370
[436]	371	alternateSupplierInstance = new Supplier(name: tempSupplierItem,
[423]	372	supplierType: supplierTypeInstance)
[436]	373	if(!alternateSupplierInstance.save()) {
	374	log.error "Failed to create alternate suppliers on line: " + lineNumber
[423]	375	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	376	}
	377	}
	378
[441]	379	inventoryParams.alternateSuppliers.add(alternateSupplierInstance)
[423]	380	}
	381
	382	// AlternateItems.
	383	tempAlternateItems = parseInputList(inventoryParams.alternateItems)
	384	inventoryParams.alternateItems = []
	385
	386	for(tempAlternateItem in tempAlternateItems) {
[426]	387	tempAlternateItem = WordUtils.capitalize(tempAlternateItem)
[423]	388	alternateItemInstance = InventoryItem.findByName(tempAlternateItem)
	389	if(!alternateItemInstance) {
	390	alternateItemInstance = new InventoryItem(name: tempAlternateItem,
	391	description: "Generated from alternateItems during import, details may not be correct.",
	392	reorderPoint: 0,
	393	inventoryGroup: inventoryGroupInstance,
	394	inventoryType: inventoryTypeInstance,
	395	unitOfMeasure: unitOfMeasureInstance,
	396	inventoryLocation: inventoryLocationInstance)
	397	if(!alternateItemInstance.save()) {
	398	log.error "Failed to create alternateItems on line: " + lineNumber
	399	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	400	}
	401	}
	402
	403	inventoryParams.alternateItems.add(alternateItemInstance)
	404	}
	405
	406	// spareFor.
	407	tempSpareFor = parseInputList(inventoryParams.spareFor)
	408	inventoryParams.spareFor = []
	409
	410	for(asset in tempSpareFor) {
	411
[426]	412	asset = WordUtils.capitalize(asset)
[423]	413
	414	spareForInstance = Asset.findByName(asset)
	415	if(!spareForInstance) {
	416	log.error "Failed to find 'Spare For' asset on line: " + lineNumber
	417	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	418	}
	419
	420	inventoryParams.spareFor.add(spareForInstance)
	421	}
	422
	423	// Assign the retrieved or created instances to params.
	424	inventoryParams.inventoryLocation = inventoryLocationInstance
	425	inventoryParams.inventoryGroup = inventoryGroupInstance
	426	inventoryParams.inventoryType = inventoryTypeInstance
	427	inventoryParams.unitOfMeasure = unitOfMeasureInstance
	428	inventoryParams.averageDeliveryPeriod = averageDeliveryPeriodInstance
[436]	429	inventoryParams.preferredSupplier = preferredSupplierInstance
	430	inventoryParams.preferredManufacturer = preferredManufacturerInstance
[423]	431
[427]	432	// Name.
	433	// Checked above for blank string.
[426]	434	inventoryParams.name = WordUtils.capitalize(inventoryParams.name)
	435
[427]	436	// Description.
	437	if(inventoryParams.description != '')
	438	inventoryParams.description = inventoryParams.description[0].toUpperCase() + inventoryParams.description[1..-1]
	439
[423]	440	// Debug
	441	log.debug "InventoryParams: "
	442	log.debug inventoryParams
	443
	444	// Create new or update.
	445	inventoryItemInstance = InventoryItem.findByName(inventoryParams.name)
	446	if(inventoryItemInstance) {
	447	log.info "Updating existing item: " + inventoryItemInstance
	448	inventoryItemInstance.properties = inventoryParams
	449	}
	450	else {
	451	log.info "Creating new item: " + inventoryParams.name
	452	inventoryItemInstance = new InventoryItem(inventoryParams)
	453	}
	454
	455	// Save inventoryItem.
	456	if(inventoryItemInstance.hasErrors() \|\| !inventoryItemInstance.save()) {
[441]	457	log.error "Failed to create item on line: " + lineNumber
[423]	458	log.debug inventoryItemInstance.errors
	459	return fail(code: "inventory.import.failure", args: [lineNumber, logFileLink])
	460	}
	461
	462	if(lineNumber % 100 == 0)
	463	cleanUpGorm()
	464
	465	if(!result.error) nextLine()
	466	} //while(line)
	467
	468	// Success.
	469	log.info "End of file."
	470	reader.close()
	471	return result
	472
	473	} //end withTransaction
	474	} // end importInventory()
	475
	476	/**
	477	* Build an inventory template csv file.
	478	* This template can then be populated for import.
	479	* @returns The template as a String in csv format.
	480	*/
	481	def buildInventoryTemplate() {
	482
	483	StringWriter sw = new StringWriter()
	484	CSVWriter writer = new CSVWriter(sw)
	485
	486	writeTemplateLines(writer)
	487
	488	writer.close()
	489	return sw.toString()
	490	}
	491
	492	private writeTemplateLines(writer) {
	493	writer.writeNext(templateHeaderLine1 as String[])
	494	writer.writeNext()
	495	writer.writeNext("Comment: The header line is required.")
	496	writer.writeNext("Comment: Required columns are marked with a (*) in the header line.")
	497	writer.writeNext("Comment: Lists of items in a column must be separated by a semicolon (;), not a comma.")
	498	writer.writeNext("Comment: The at symbol (@) is reserved for indicating supplier and manufacturer types.")
	499	writer.writeNext("Comment: Identical and existing names will be considered as the same item.")
	500	writer.writeNext("Comment: Lines containing 'comment' will be ignored.")
	501	writer.writeNext("Comment: Lines containing 'example' will be ignored.")
	502	writer.writeNext("Comment: This file must be saved as a CSV file before import.")
	503	writer.writeNext()
	504	}
	505
	506	/**
	507	* Build an inventory example/test file.
	508	* This test file can be imported to test the import and export methods.
	509	* @returns The test file as a String in csv format.
	510	*/
	511	def buildInventoryExample() {
	512
	513	StringWriter sw = new StringWriter()
	514	CSVWriter writer = new CSVWriter(sw)
	515
	516	writeTemplateLines(writer)
	517
	518	// Requires creation of some of the base/group/type data.
	519	writer.writeNext(["Split19", "19mm split pin", "Very usefull item.",
	520	"1024", "0", "1",
	521	"each", "5", "NZD",
	522	"false", "BR4",
	523	"Store #99", "Inventory Depot",
	524	"Mechanical Stock",
	525	"Consumable",
	526	"7", "Week(s)",
[436]	527	"123", "Multi Supplier@Local",
	528	"Multi Distributors1@OEM; Multi Distributors2@Local",
	529	"321", "Master Manufacturer@OEM",
	530	"Mega Manufacturer1@OEM;Mega Manufacturer2@Alternate",
[423]	531	"2204E-2RS", ""
	532	] as String[])
	533
	534	// Using existing base data.
	535	writer.writeNext(["2204E-2RS", "Double Row Self Align Ball Bearing 2204E-2RS - Sealed - 20/47x18", "",
	536	"4", "1", "9",
	537	"each", "16.35", "USD",
	538	"TRUE", "BR4",
	539	"Store #99", "Inventory Depot",
	540	"Mechanical Stock",
	541	"Consumable",
	542	"2", "Month(s)",
[436]	543	"456KL", "Multi Supplier",
	544	"Multi Distributors1; Multi Distributors2",
	545	"654OP", "Master Manufacturer",
	546	"Mega Manufacturer1;Mega Manufacturer2",
[423]	547	"", ""
	548	] as String[])
	549
	550	writer.close()
	551	return sw.toString()
	552	}
	553
	554	/**
	555	* Build complete inventory for export.
[436]	556	* @param inventoryItemList The list of inventory items to build.
[423]	557	* @returns The inventory as a String in csv format.
	558	*/
	559	def buildInventory(List inventoryItemList) {
	560
	561	def sw = new StringWriter()
	562	def writer = new CSVWriter(sw)
	563
	564	writeTemplateLines(writer)
	565
	566	//Rows
	567	def row
	568
	569	inventoryItemList.sort { p1, p2 -> p1.name.compareToIgnoreCase(p2.name) }.each() { inventoryItem ->
	570	row = []
	571	row.add(inventoryItem.name)
	572	row.add(inventoryItem.description)
	573	row.add(inventoryItem.comment)
	574	row.add(inventoryItem.unitsInStock)
	575	row.add(inventoryItem.reorderPoint)
	576	row.add(inventoryItem.recommendedReorderPoint)
	577	row.add(inventoryItem.unitOfMeasure)
	578	row.add(inventoryItem.estimatedUnitPriceAmount)
	579	row.add(inventoryItem.estimatedUnitPriceCurrency)
	580	row.add(inventoryItem.enableReorder)
	581	row.add(inventoryItem.inventoryLocation)
	582	row.add(inventoryItem.inventoryLocation.inventoryStore)
	583	row.add(inventoryItem.inventoryLocation.inventoryStore.site)
	584	row.add(inventoryItem.inventoryGroup)
	585	row.add(inventoryItem.inventoryType)
	586	row.add(inventoryItem.averageDeliveryTime)
	587	row.add(inventoryItem.averageDeliveryPeriod)
	588	row.add(inventoryItem.suppliersPartNumber)
	589
[436]	590	if(inventoryItem.preferredSupplier)
	591	row.add( inventoryItem.preferredSupplier.name + "@" + inventoryItem.preferredSupplier.supplierType )
	592	else
	593	row.add('')
	594
	595	row.add( inventoryItem.alternateSuppliers.sort { p1, p2 ->
[423]	596	p1.name.compareToIgnoreCase(p2.name)
	597	}.collect { it.name + "@" + it.supplierType }.join(';') )
	598
	599	row.add(inventoryItem.manufacturersPartNumber)
	600
[436]	601	if(inventoryItem.preferredManufacturer)
	602	row.add( inventoryItem.preferredManufacturer.name + "@" + inventoryItem.preferredManufacturer.manufacturerType )
	603	else
	604	row.add('')
	605
	606	row.add(inventoryItem.alternateManufacturers.sort { p1, p2 ->
[423]	607	p1.name.compareToIgnoreCase(p2.name)
	608	}.collect { it.name + "@" + it.manufacturerType }.join(';'))
	609
	610	row.add(inventoryItem.alternateItems.sort { p1, p2 ->
	611	p1.name.compareToIgnoreCase(p2.name)
	612	}.collect { it.name }.join(';') )
	613
	614	row.add(inventoryItem.spareFor.sort { p1, p2 ->
	615	p1.name.compareToIgnoreCase(p2.name)
	616	}.collect { it.name }.join(';'))
	617
	618	writer.writeNext(row as String[])
	619	}
	620
	621	writer.close()
	622	return sw.toString()
[441]	623	} // end buildInventory()
[423]	624
[441]	625	/**
	626	* Import inventoryItemPurchases creating items as required.
	627	*/
	628	def importInventoryItemPurchases(request) {
	629	InventoryItemPurchase.withTransaction { status ->
	630	def result = [:]
	631
	632	def kByteMultiplier = 1000
	633	def fileMaxSize = 800 * kByteMultiplier
	634	def logFileLink = g.link(controller: "appCore", action: "appLog") {"log"}
	635
	636	def multiPartFile = request.getFile('file')
	637
	638	InputStreamReader sr = new InputStreamReader(multiPartFile.inputStream)
	639	CSVReader reader = new CSVReader(sr)
	640
	641	def fail = { Map m ->
	642	status.setRollbackOnly()
	643	reader.close()
	644	result.error = [ code: m.code, args: m.args ]
	645	return result
	646	}
	647
	648	if(!multiPartFile \|\| multiPartFile.isEmpty())
	649	return fail(code: "default.file.not.supplied")
	650
	651	if (multiPartFile.getSize() > fileMaxSize)
	652	return fail(code: "default.file.over.max.size", args: [fileMaxSize/kByteMultiplier, "kB"])
	653
	654	def line = []
	655	def lineNumber = 0
	656	def maxNumberOfColumns = 10
	657	def inventoryItemPurchaseParams = [:]
	658	def inventoryItemPurchaseProperties = ["inventoryItem", "purchaseOrderNumber", "quantity",
	659	"inventoryItemPurchaseType",
	660	"costCode", "enteredBy", "dateEntered",
	661	"orderValueAmount", "orderValueCurrency", "invoiceNumber"]
	662
	663	def personInstance
	664	def costCodeInstance
	665	def inventoryItemInstance
	666	def inventoryItemPurchaseInstance
	667	def inventoryItemPurchaseTypeInstance
	668
	669	def nextLine = {
	670	line = reader.readNext()
	671	lineNumber ++
	672	log.info "Processing line: " + lineNumber
	673	}
	674
	675	def parseInputDate = {
	676	if( (it == null) \|\| (it.trim() == '') ) {
	677	log.error "Failed to find any date on line: " + lineNumber
	678	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	679	}
	680
	681	def d = it.split("/").collect{it.trim()}
	682	if(d.size() != 3) {
	683	log.error "Failed to find full date on line: " + lineNumber
	684	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	685	}
	686	dateUtilService.makeDate(d[0], d[1], d[2])
	687	}
	688
	689	// Get first line.
	690	nextLine()
	691
	692	// Check for header line 1.
	693	if(line != purchasesTemplateHeaderLine1) {
	694	log.error "Failed to find header line 1. "
	695	log.error "Required: " + purchasesTemplateHeaderLine1.toString()
	696	log.error "Supplied: " + line.toString()
	697	return fail(code: "default.file.no.header")
	698	}
	699
	700	log.info "Header line found."
	701
	702	// Prepare the first body line.
	703	nextLine()
	704
	705	// Primary loop.
	706	while(line) {
	707
	708	if(line.size() > maxNumberOfColumns) {
	709	log.error "Too many columns on line: " + lineNumber
	710	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	711	}
	712
	713	// Ignore comment lines.
	714	if(line.toString().toLowerCase().contains("comment")) {
	715	log.info "Comment line found."
	716	nextLine()
	717	continue
	718	}
	719
	720	// Ignore example lines.
	721	if(line.toString().toLowerCase().contains("example")) {
	722	log.info "Example line found."
	723	nextLine()
	724	continue
	725	}
	726
	727	// Parse the line into the params map.
	728	inventoryItemPurchaseParams = [:]
	729	line.eachWithIndex { it, j ->
	730	inventoryItemPurchaseParams."${inventoryItemPurchaseProperties[j]}" = it.trim()
	731	}
	732
	733	// Debug
	734	log.debug " Supplied params: "
	735	log.debug inventoryItemPurchaseParams
	736
	737	// Ignore blank lines.
	738	if(inventoryItemPurchaseParams.inventoryItem == '') {
	739	log.info "No inventory item name found."
	740	nextLine()
	741	continue
	742	}
	743
	744	// Inventory Item.
	745	inventoryItemPurchaseParams.inventoryItem = WordUtils.capitalize(inventoryItemPurchaseParams.inventoryItem)
	746	inventoryItemInstance = InventoryItem.findByName(inventoryItemPurchaseParams.inventoryItem)
	747	if(!inventoryItemInstance) {
	748	log.error "Inventory item not found on line: " + lineNumber
	749	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	750	}
	751	inventoryItemPurchaseParams.inventoryItem = inventoryItemInstance
	752
	753	// Quantity.
	754	if(inventoryItemPurchaseParams.quantity.isInteger())
	755	inventoryItemPurchaseParams.quantity = inventoryItemPurchaseParams.quantity.toInteger()
	756	else {
	757	log.error "Quantity is not a valid number on line: " + lineNumber
	758	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	759	}
	760
	761	// InventoryItemPurchaseType.
	762	inventoryItemPurchaseParams.inventoryItemPurchaseType = WordUtils.capitalizeFully(inventoryItemPurchaseParams.inventoryItemPurchaseType)
	763	inventoryItemPurchaseTypeInstance = InventoryItemPurchaseType.findByName(inventoryItemPurchaseParams.inventoryItemPurchaseType)
	764	if(!inventoryItemPurchaseTypeInstance) {
	765	log.error "Inventory item purchase type not found on line: " + lineNumber
	766	log.debug inventoryItemPurchaseParams.inventoryItemPurchaseType
	767	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	768	}
	769	inventoryItemPurchaseParams.inventoryItemPurchaseType = inventoryItemPurchaseTypeInstance
	770
	771	// CostCode.
	772	if(inventoryItemPurchaseParams.costCode != '') {
	773	inventoryItemPurchaseParams.costCode = WordUtils.capitalizeFully(inventoryItemPurchaseParams.costCode)
	774	costCodeInstance = CostCode.findByName(inventoryItemPurchaseParams.costCode)
	775	if(!costCodeInstance) {
	776	costCodeInstance = new CostCode(name: inventoryItemPurchaseParams.costCode)
	777	if(!costCodeInstance.save()) {
	778	log.error "Failed to create cost code on line: " + lineNumber
	779	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	780	}
	781	}
	782	inventoryItemPurchaseParams.costCode = costCodeInstance
	783	}
	784
	785	// Entered By.
	786	inventoryItemPurchaseParams.enteredBy = inventoryItemPurchaseParams.enteredBy.toLowerCase()
	787	personInstance = Person.findByLoginName(inventoryItemPurchaseParams.enteredBy)
	788	if(!personInstance) {
	789	log.error "Entered by person not found on line: " + lineNumber
	790	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	791	}
	792	inventoryItemPurchaseParams.enteredBy = personInstance
	793
	794	// Date Entered.
	795	inventoryItemPurchaseParams.dateEntered = parseInputDate(inventoryItemPurchaseParams.dateEntered)
	796
	797	// Debug
	798	log.debug "InventoryItemPurchaseParams: "
	799	log.debug inventoryItemPurchaseParams
	800
	801	// Save inventoryItem.
	802	log.info "Creating new purchase."
	803	inventoryItemPurchaseInstance = new InventoryItemPurchase(inventoryItemPurchaseParams)
	804
	805	if(inventoryItemPurchaseInstance.hasErrors() \|\| !inventoryItemPurchaseInstance.save()) {
	806	log.error "Failed to create item on line: " + lineNumber
	807	log.debug inventoryItemPurchaseInstance.errors
	808	return fail(code: "inventoryItemPurchase.import.failure", args: [lineNumber, logFileLink])
	809	}
	810
	811	if(lineNumber % 100 == 0)
	812	cleanUpGorm()
	813
	814	if(!result.error) nextLine()
	815	} //while(line)
	816
	817	// Success.
	818	log.info "End of file."
	819	reader.close()
	820	return result
	821
	822
	823	} //end withTransaction
	824	} // end importInventoryItemPurchases()
	825
[423]	826	private getTemplateHeaderLine1() {
	827	["Name", "Description", "Comment", "Units In Stock", "Reorder Point", "Recommended Reorder Point", "Unit Of Measure*",
	828	"Estimated Unit Price", "Currency", "Enable Reorder", "Location", "Store", "Site", "Group", "Type*",
[436]	829	"Average Delivery Time", "Average Delivery Period", "Supplier's Part Number", "Preferred Supplier", "Alternate Suppliers",
	830	"Manufacturer's Part Number", "Preferred Manufacturer", "Alternate Manufacturers", "Alternate Item", "Spare For"]
[423]	831	}
	832
[441]	833	private getPurchasesTemplateHeaderLine1() {
[462]	834	["Inventory Item", "Purchase Order Number", "Quantity", "Purchase Type", "Cost Code", "Entered By",
[441]	835	"Date Entered*", "Order Value", "Currency", "Invoice Number"]
	836	}
	837
[423]	838	/**
	839	* This cleans up the hibernate session and a grails map.
	840	* For more info see: http://naleid.com/blog/2009/10/01/batch-import-performance-with-grails-and-mysql/
	841	* The hibernate session flush is normal for hibernate.
	842	* The map is apparently used by grails for domain object validation errors.
	843	* A starting point for clean up is every 100 objects.
	844	*/
	845	def cleanUpGorm() {
	846	def session = sessionFactory.currentSession
	847	session.flush()
	848	session.clear()
	849	propertyInstanceMap.get().clear()
	850	}
	851
	852	} // end class

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