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re-implemented using more idiomatic Xtend, added gradle build config
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| @@ -1,8 +1,8 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <classpath> | ||
| <classpathentry kind="src" path="xtend-gen"/> | ||
| <classpathentry kind="con" path="org.eclipse.xtend.XTEND_CONTAINER"/> | ||
| <classpathentry kind="src" path="src"/> | ||
| <classpathentry kind="src" path="xtend-gen"/> | ||
| <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> | ||
| <classpathentry kind="output" path="bin"/> | ||
| </classpath> |
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| @@ -0,0 +1,5 @@ | ||
| bin | ||
| pricefile.txt | ||
| xtend-gen | ||
| build | ||
| .gradle |
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| @@ -0,0 +1,49 @@ | ||
| apply plugin: 'application' | ||
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| // Allows generating an Eclipse project via 'gradle eclipse' | ||
| apply plugin: 'eclipse' | ||
| apply plugin: "org.xtext.xtend" | ||
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| mainClassName = "HollingBerries" | ||
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| repositories { | ||
| mavenCentral() | ||
| maven { | ||
| url "https://plugins.gradle.org/m2/" | ||
| } | ||
| } | ||
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| dependencies { | ||
| compile 'org.eclipse.xtend:org.eclipse.xtend.lib:2.9.0' | ||
| } | ||
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| eclipse { | ||
| project { | ||
| natures 'org.eclipse.xtext.ui.shared.xtextNature' | ||
| buildCommand 'org.eclipse.xtext.ui.shared.xtextBuilder' | ||
| } | ||
| } | ||
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| sourceSets { | ||
| main { | ||
| java { | ||
| srcDir 'src/' | ||
| } | ||
| resources { | ||
| srcDir 'src/resources' | ||
| } | ||
| } | ||
| } | ||
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| buildscript { | ||
| repositories { | ||
| mavenCentral() | ||
| maven { | ||
| url "https://plugins.gradle.org/m2/" | ||
| } | ||
| } | ||
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| dependencies { | ||
| classpath "org.xtext:xtext-gradle-plugin:1.0.2" | ||
| } | ||
| } |
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|---|---|---|
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| import java.io.FileReader | ||
| import java.io.FileWriter | ||
| import java.text.SimpleDateFormat | ||
| import java.util.Date | ||
| import org.eclipse.xtend.lib.Data | ||
| import static HollingBerries.* | ||
| import org.eclipse.xtend.lib.annotations.Data | ||
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| import static extension com.google.common.io.CharStreams.* | ||
| import java.io.FileWriter | ||
| import java.util.Calendar | ||
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| // Class to hold product data | ||
| @Data class Product { | ||
| int supplierId | ||
| int productCode | ||
| String description | ||
| Date deliveryDate | ||
| int price | ||
| int quantity | ||
| int supplierId | ||
| int productCode | ||
| String description | ||
| Date deliveryDate | ||
| int price | ||
| int quantity | ||
| } | ||
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| @Data class ProduceData { | ||
| IntegerRange codes | ||
| double markup | ||
| int shelfLifeDays | ||
| } | ||
|
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| // Main class | ||
| class HollingBerries { | ||
| // supplier ratings | ||
| val troubleSuppliers = newArrayList(32, 101) | ||
| val premiumSuppliers = newArrayList(219, 204) | ||
| // Data for each type of produce: code range, markup, shelf life in days | ||
| val produceData = #{ | ||
| "Apples" -> new ProduceData((1100 .. 1199), 1.40, 14), | ||
| "Bananas" -> new ProduceData((1200 .. 1299), 1.35, 5), | ||
| "Berries" -> new ProduceData((1300 .. 1399), 1.55, 7), | ||
| "Other" -> new ProduceData(null, 1.5, 7) | ||
| } | ||
|
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| // compute the selling price based on product type and supplier | ||
| def getSellPrice(Product p) { | ||
| var markup = switch p { | ||
| case (1100..1199).contains(p.productCode): 40 | ||
| case (1200..1299).contains(p.productCode): 35 | ||
| case (1300..1399).contains(p.productCode): 55 | ||
| default: 50 | ||
| } | ||
|
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| // adjust for suppliers | ||
| sanePrice(switch p { | ||
| case troubleSuppliers.contains(p.supplierId): | ||
| (p.price * (1 + markup/100.0) - 200) / 100.0 | ||
| case premiumSuppliers.contains(p.supplierId): | ||
| Math::ceil(p.price * (1 + (markup+10)/100.0) / 100.0) | ||
| default: | ||
| p.price * (1 + markup/100.0) / 100.0 | ||
| }) | ||
| } | ||
| // supplier ratings | ||
| val troubleSuppliers = #[32, 101] | ||
| val premiumSuppliers = #[219, 204] | ||
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| // compute sell by date based on product type and supplier | ||
| def getSellBy(Product p) { | ||
| var adj = switch p { | ||
| case (1100..1199).contains(p.productCode): 14 | ||
| case (1200..1299).contains(p.productCode): 5 | ||
| default: 7 | ||
| } | ||
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| // adjust for suppliers | ||
| if (troubleSuppliers.contains(p.supplierId)) { | ||
| val inDateFormat = new SimpleDateFormat("\"yyyy/MM/dd\"") | ||
| val outdateFormat = new SimpleDateFormat("yyyy/MM/dd") | ||
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| def getProduceData(Product p) { | ||
| produceData.values.findFirst[ codes == null || codes.contains(p.productCode) ] | ||
| } | ||
|
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| // compute the selling price based on product type and supplier | ||
| def getSellPrice(Product p) { | ||
| var markup = p.produceData.markup | ||
|
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| // adjust for suppliers | ||
| switch p { | ||
| case troubleSuppliers.contains(p.supplierId): | ||
| (p.price * markup - 200.0) / 100.0 | ||
| case premiumSuppliers.contains(p.supplierId): | ||
| Math::ceil(p.price * (markup + 0.1) / 100.0) | ||
| default: | ||
| p.price * markup / 100.0 | ||
| } | ||
| } | ||
|
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| // compute sell by date based on product type and supplier | ||
| def getSellBy(Product p) { | ||
| var adj = p.produceData.shelfLifeDays | ||
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| // adjust for suppliers | ||
| if (troubleSuppliers.contains(p.supplierId)) { | ||
| adj = adj - 3 | ||
| } | ||
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| new Date(p.deliveryDate.time + adj*1000*60*60*24) | ||
| } | ||
| } | ||
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| new Date(p.deliveryDate.time + adj * 1000 * 60 * 60 * 24) | ||
| } | ||
|
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| // generate the label printer lines for each product | ||
| def String processProduct(Product p) { | ||
| if (p.quantity <= 0) return "" | ||
| (0 .. p.quantity - 1).join("", [ | ||
| var sellPrice = Math.max(p.getSellPrice, 0.0) | ||
| var sellBy = p.getSellBy | ||
| var desc = p.description.substring(1, 32) | ||
| '''R«String::format("% 8.2f", sellPrice)»«outdateFormat.format(sellBy)»«desc» | ||
| '''.toString | ||
| ]) | ||
| } | ||
|
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| // make sure prices are sane | ||
| def sanePrice(double price) { | ||
| if (price < 0) 0 else price | ||
| } | ||
| // processing loop to read CSV and write label printer file | ||
| def process(String sourceCsv, String outputCsv) { | ||
| val out = new FileWriter(outputCsv) | ||
| new FileReader(sourceCsv).readLines.drop(1).forEach [ | ||
| val cols = it.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)", -1).iterator | ||
| val product = new Product( | ||
| Integer::parseInt(cols.next), | ||
| Integer::parseInt(cols.next), | ||
| cols.next, | ||
| inDateFormat.parse(cols.next), | ||
| Integer::parseInt(cols.next), | ||
| Integer::parseInt(cols.next) | ||
| ) | ||
| out.write(processProduct(product)) | ||
| ] | ||
| out.close | ||
| } | ||
|
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| // generate the label printer lines for each product | ||
| def String processProduct(Product p) { | ||
| if (p.quantity == 0) return "" | ||
| (0..p.quantity-1).join("", [ | ||
| var sellPrice = p.getSellPrice | ||
| var sellBy = p.getSellBy | ||
| var desc = p.description.substring(1,32) | ||
|
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| var sdf = new SimpleDateFormat("yyyy/MM/dd") | ||
| '''R«String::format("% 8.2f", sellPrice)»«sdf.format(sellBy)»«desc» | ||
| '''.toString | ||
| ]) | ||
| } | ||
|
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| // processing loop to read CSV and write label printer file | ||
| def process(String sourceCsv, String outputCsv) { | ||
| val out = new FileWriter(outputCsv) | ||
| new FileReader(sourceCsv).readLines.drop(1).forEach[ | ||
| val cols = it.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)", -1).iterator | ||
| val product = new Product( | ||
| Integer::parseInt(cols.next), | ||
| Integer::parseInt(cols.next), | ||
| cols.next, | ||
| new SimpleDateFormat("\"yyyy/MM/dd\"").parse(cols.next), | ||
| Integer::parseInt(cols.next), | ||
| Integer::parseInt(cols.next) | ||
| ) | ||
| out.write(processProduct(product)) | ||
| ] | ||
| out.close | ||
| } | ||
|
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| def static void main(String[] args) { | ||
| new HollingBerries().process("../../produce.csv", "pricefile.txt") | ||
| } | ||
| def static void main(String[] args) { | ||
| new HollingBerries().process("../../produce.csv", "pricefile.txt") | ||
| } | ||
| } |