Obsługa formatu XML

PC33-RestSerwer/src/main/java/sklep/model/Customer.java

@@ -4,7 +4,9 @@ import java.util.Objects;
 
 import jakarta.xml.bind.annotation.XmlAttribute;
 import jakarta.xml.bind.annotation.XmlElement;
+import jakarta.xml.bind.annotation.XmlRootElement;
 
+@XmlRootElement
 public class Customer {
 	@XmlAttribute
 	private String email;

PC33-RestSerwer/src/main/java/sklep/model/Order.java

@@ -10,8 +10,10 @@ import java.util.Objects;
 import jakarta.xml.bind.annotation.XmlAttribute;
 import jakarta.xml.bind.annotation.XmlElement;
 import jakarta.xml.bind.annotation.XmlElementWrapper;
+import jakarta.xml.bind.annotation.XmlRootElement;
 import jakarta.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
 
+@XmlRootElement
 public class Order {
 	@XmlAttribute(name="id")
 	private Integer orderId;

PC33-RestSerwer/src/main/java/sklep/model/Product.java

@@ -5,7 +5,9 @@ import java.util.Objects;
 
 import jakarta.xml.bind.annotation.XmlAttribute;
 import jakarta.xml.bind.annotation.XmlElement;
+import jakarta.xml.bind.annotation.XmlRootElement;
 
+@XmlRootElement
 public class Product {
 	@XmlAttribute(name="id")
 	private Integer productId;

PC33-RestSerwer/src/main/java/sklep/rest/RProductsXML.java

+package sklep.rest;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import sklep.db.DBConnection;
+import sklep.db.DBException;
+import sklep.db.ProductDAO;
+import sklep.db.RecordNotFound;
+import sklep.model.Product;
+import sklep.photo.PhotoUtil;
+
+@Path("/products.xml")
+public class RProductsXML {
+
+	@GET
+	@Produces("application/xml")
+	public List<Product> wszystkieProdukty() throws DBException {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			return productDAO.readAll();
+		}
+	}
+	
+	@GET
+	@Path("/{id}")
+	@Produces("application/xml")
+	public Product produktWgId(@PathParam("id") int productId) throws DBException, RecordNotFound {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			return productDAO.findById(productId);
+		}
+	}
+	
+	// Pojedyncza wartość liczbowa lub tekstowa NIE JEST poprawnym (samodzielnym) XML-em
+	// Dlatego tu wyjątkowo użjemy text/plain.
+	@GET
+	@Path("/{id}/price")
+	@Produces("text/plain")
+	public BigDecimal getPrice(@PathParam("id") int productId) throws DBException, RecordNotFound {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			return productDAO.findById(productId).getPrice();
+		}
+	}
+	
+	@PUT
+	@Path("/{id}/price")
+	@Consumes("text/plain")
+	public void setPrice(@PathParam("id") int productId, BigDecimal newPrice) throws DBException, RecordNotFound {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			Product product = productDAO.findById(productId);
+			product.setPrice(newPrice);
+			productDAO.save(product);
+			db.commit();
+		}
+	}
+	
+	@POST
+	@Consumes("application/xml")
+	@Produces("application/xml")
+	public Product zapiszProdukt(Product product) throws DBException {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			productDAO.save(product);
+			db.commit();
+			return product;
+		}
+	}
+	
+	@DELETE
+	@Path("/{id}")
+	public void usun(@PathParam("id") int productId) throws DBException, RecordNotFound {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			productDAO.delete(productId);
+			db.commit();
+		}
+	}
+	
+	@GET
+	@Path("/{id}/photo")
+	@Produces("image/jpeg")
+	public byte[] foto(@PathParam("id") int productId) throws DBException, RecordNotFound {
+		return PhotoUtil.readBytes(productId);
+	}
+	
+}
+