localhorst/e-commerce
Archived
4
1
Fork 0
Code Issues Pull Requests Releases 2 Wiki Activity

Implement First Draft of Supplier API

Browse Source
This commit is contained in:
CodeSteak
2020-05-12 22:41:08 +02:00
parent 89eaeaed40
commit 62d811db1d
16 changed files with 613 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
supplier/src/main/java/org/hso/ecommerce/supplier/App.java Normal file
View File

@ -0,0 +1,11 @@
package org.hso.ecommerce.supplier;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}

45
supplier/src/main/java/org/hso/ecommerce/supplier/ConfigurationReader.java Normal file
View File

@ -0,0 +1,45 @@
package org.hso.ecommerce.supplier;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.hso.ecommerce.supplier.data.Supplier;
import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
public class ConfigurationReader {
public static List<Supplier> read() throws IOException {
File dir = new File("./config/");
System.out.println("Loading Config in " + dir.getAbsolutePath());
ArrayList<Supplier> ret = Files.list(dir.toPath()).map(path -> {
System.out.println("Iterating over; " + path);
if (path.toString().endsWith(".json")) {
try {
String jsonData = Files.readString(path, StandardCharsets.UTF_8);
ObjectMapper objectMapper = new ObjectMapper();
Supplier sup = (Supplier)objectMapper.readValue(jsonData, Supplier.class);
System.out.println("Loaded " + sup.id);
return sup;
} catch (IOException e) {
e.printStackTrace();
}
} else {
System.out.println("Skipping because of file extension.");
}
return null;
}).collect(Collectors.toCollection(ArrayList::new));
ret.removeIf(Objects::isNull);
return ret;
}
}

88
supplier/src/main/java/org/hso/ecommerce/supplier/RequestController.java Normal file
View File

@ -0,0 +1,88 @@
package org.hso.ecommerce.supplier;
import org.hso.ecommerce.supplier.data.Article;
import org.hso.ecommerce.supplier.data.Order;
import org.hso.ecommerce.supplier.data.OrderConfirmation;
import org.hso.ecommerce.supplier.data.Supplier;
import org.springframework.web.bind.annotation.*;
import javax.annotation.PostConstruct;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
@RestController
public class RequestController {
private final HashMap<String, Integer> dailySalesVolumeCent = new HashMap<>();
private final HashMap<String, Supplier> knownSuppliers = new HashMap<>();
private final SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
@PostConstruct
public void init() throws IOException {
for (Supplier s : ConfigurationReader.read()) {
knownSuppliers.put(s.id, s);
}
}
@GetMapping("/")
public List<Supplier> index() {
return new ArrayList<>(knownSuppliers.values());
}
@GetMapping("/{supplier}/")
public Supplier supplier(HttpServletResponse res, @PathVariable("supplier") String supplierName) {
Supplier s = knownSuppliers.get(supplierName);
if(s == null) {
res.setStatus(HttpServletResponse.SC_NOT_FOUND);
}
return s;
}
@PostMapping("/{supplier}/order")
public OrderConfirmation order(HttpServletResponse res, @PathVariable("supplier") String supplierName, @RequestBody Order order) {
Supplier s = knownSuppliers.get(supplierName);
if(s == null) {
res.setStatus(HttpServletResponse.SC_NOT_FOUND);
return null;
}
String dateKey = simpleDateFormat.format(new Date());
int dailyVolume = dailySalesVolumeCent.getOrDefault(dateKey,0);
Article a = s.findArticle(order.manufacturer, order.articleNumber);
if(a == null) {
res.setStatus(HttpServletResponse.SC_BAD_REQUEST);
return null;
}
int priceNet = a.pricePerUnitNet * order.quantity;
int discount = 0;
if(dailyVolume >= s.discount.minimumDailySalesVolumeNetCent) {
discount = (priceNet * s.discount.percentDiscount) / 100;
}
OrderConfirmation confirmation = new OrderConfirmation();
confirmation.articleNumber = order.articleNumber;
confirmation.discountNetCent = discount;
confirmation.pricePerUnitNetCent = a.pricePerUnitNet;
confirmation.manufacturer = a.manufacturer;
confirmation.quantity = order.quantity;
confirmation.totalPriceNetCharged = priceNet - discount;
if (confirmation.totalPriceNetCharged > order.maxTotalPriceCentNet) {
res.setStatus(HttpServletResponse.SC_EXPECTATION_FAILED);
return null;
}
dailyVolume += confirmation.totalPriceNetCharged;
dailySalesVolumeCent.put(dateKey, dailyVolume);
return confirmation;
}
}

11
supplier/src/main/java/org/hso/ecommerce/supplier/data/Article.java Normal file
View File

@ -0,0 +1,11 @@
package org.hso.ecommerce.supplier.data;
public class Article {
public String title;
public String manufacturer;
public String articleNumber;
public int vatPercent;
public int pricePerUnitNet;
public boolean shouldBeAdvertised;
}

9
supplier/src/main/java/org/hso/ecommerce/supplier/data/Order.java Normal file
View File

@ -0,0 +1,9 @@
package org.hso.ecommerce.supplier.data;
public class Order {
public String manufacturer;
public String articleNumber;
public int quantity;
public int maxTotalPriceCentNet;
}

12
supplier/src/main/java/org/hso/ecommerce/supplier/data/OrderConfirmation.java Normal file
View File

@ -0,0 +1,12 @@
package org.hso.ecommerce.supplier.data;
public class OrderConfirmation {
public String manufacturer;
public String articleNumber;
public int quantity;
public int pricePerUnitNetCent;
public int discountNetCent;
public int totalPriceNetCharged;
}

21
supplier/src/main/java/org/hso/ecommerce/supplier/data/Supplier.java Normal file
View File

@ -0,0 +1,21 @@
package org.hso.ecommerce.supplier.data;
import java.util.List;
public class Supplier {
public String id;
public String name;
public SupplierDiscount discount;
public List<Article> articles;
public Article findArticle(String manufacturer, String articleNumber) {
for(Article a : articles) {
if(a.manufacturer.equals(manufacturer) && a.articleNumber.equals(articleNumber)) {
return a;
}
}
return null;
}
}

6
supplier/src/main/java/org/hso/ecommerce/supplier/data/SupplierDiscount.java Normal file
View File

@ -0,0 +1,6 @@
package org.hso.ecommerce.supplier.data;
public class SupplierDiscount {
public int minimumDailySalesVolumeNetCent;
public int percentDiscount;
}

2
supplier/src/main/resources/application.properties Normal file
View File

@ -0,0 +1,2 @@
server.address=::1
server.port=8081