PDFWriter - zwracanie "minimalnego PDFa"

PC35-RestSerwer/src/main/java/rest/RProductPDF.java

+package rest;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.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.model.ProductList;
+
+@Path("/products.pdf")
+@Produces("application/pdf")
+public class RProductPDF {
+
+	@GET
+	public ProductList readAllProducts() throws DBException {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			return new ProductList(productDAO.readAll());
+		}
+	}
+
+	@Path("/{id}")
+	@GET
+	public Product readOneProduct(@PathParam("id") int productId) throws DBException, RecordNotFound {
+		try(DBConnection db = DBConnection.open()) {
+			ProductDAO productDAO = db.productDAO();
+			return productDAO.findById(productId);
+		}
+	}	
+}

PC35-RestSerwer/src/main/java/rest/ext/PDFWriter.java

+package rest.ext;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.ext.MessageBodyWriter;
+import javax.ws.rs.ext.Provider;
+
+import sklep.model.ProductList;
+
+@Provider
+public class PDFWriter implements MessageBodyWriter<ProductList> {
+
+	@Override
+	public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+		// TODO Auto-generated method stub
+		return true;
+	}
+
+	@Override
+	public void writeTo(ProductList obj, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
+			MultivaluedMap<String, Object> httpHeaders, OutputStream out)
+			throws IOException, WebApplicationException {
+		
+		byte[] bytes = ("%PDF-1.0\n"
+				+ "1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj 2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj 3 0 obj<</Type/Page/MediaBox[0 0 3 3]>>endobj\n"
+				+ "xref\n"
+				+ "0 4\n"
+				+ "0000000000 65535 f\n"
+				+ "0000000010 00000 n\n"
+				+ "0000000053 00000 n\n"
+				+ "0000000102 00000 n\n"
+				+ "trailer<</Size 4/Root 1 0 R>>\n"
+				+ "startxref\n"
+				+ "149\n"
+				+ "%EOF").getBytes();
+		out.write(bytes);
+		
+	}
+
+}