Added automatic checking for Nicu's docker server

2024-10-05 02:17:06 +03:00
parent dcafe73f86
commit 4e53276e88
20 changed files with 792 additions and 21 deletions
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="EntryPointsManager">
+    <writeAnnotations>
+      <writeAnnotation name="org.lumijiez.serializer.LumiSerializeField" />
+    </writeAnnotations>
+  </component>
  <component name="ExternalStorageConfigurationManager" enabled="true" />
  <component name="MavenProjectsManager">
    <option name="originalFiles">
--- a/.idea/uiDesigner.xml
+++ b/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.svg" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>
--- a/filtered.json
+++ b/filtered.json
--- a/filtered.xml
+++ b/filtered.xml
--- a/new.json
+++ b/new.json
--- a/new.xml
+++ b/new.xml
--- a/pom.xml
+++ b/pom.xml
@@ -13,5 +13,5 @@
        <maven.compiler.target>23</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
-    
+
 </project>
--- a/src/main/java/org/lumijiez/Main.java
+++ b/src/main/java/org/lumijiez/Main.java
@@ -1,17 +1,35 @@
 package org.lumijiez;

-//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
-// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
-public class Main {
-    public static void main(String[] args) {
-        //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
-        // to see how IntelliJ IDEA suggests fixing it.
-        System.out.printf("Hello and welcome!");
+import org.lumijiez.models.FilteredProducts;
+import org.lumijiez.models.Product;
+import org.lumijiez.network.TCPClient;
+import org.lumijiez.parsers.DarwinParser;
+import org.lumijiez.parsers.DarwinProductParser;
+import org.lumijiez.parsers.DarwinProductProcessor;
+import org.lumijiez.serializer.Lumi;

-        for (int i = 1; i <= 5; i++) {
-            //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
-            // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
-            System.out.println("i = " + i);
-        }
+import java.util.List;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        String host = "https://darwin.md/search?search=apple&page=1";
+
+        String response = TCPClient.getHttps(host);
+        String productList = DarwinParser.extractProductList(response);
+        List<Product> products = DarwinProductParser.parseProducts(productList);
+
+        FilteredProducts filtered = DarwinProductProcessor.processProducts(products, 0, 1000000);
+
+        Lumi.jsonToFile(filtered, "filtered.json");
+        Lumi.xmlToFile(filtered, "filtered.xml");
+
+        System.out.println(TCPClient.checkJson(Lumi.toJson(filtered)));
+        System.out.println(TCPClient.checkXml(Lumi.toXml(filtered)));
+
+//      Serialization/Deserialization Test
+        System.out.println(
+                Lumi.toXml(
+                        Lumi.fromJson(
+                                Lumi.toJson(products.getFirst()), Product.class)));
    }
 }
--- a/src/main/java/org/lumijiez/models/FilteredProducts.java
+++ b/src/main/java/org/lumijiez/models/FilteredProducts.java
@@ -1,4 +1,19 @@
 package org.lumijiez.models;

+import org.lumijiez.serializer.LumiSerializable;
+import org.lumijiez.serializer.LumiSerializeField;
+
+import java.util.Date;
+import java.util.List;
+
+@LumiSerializable
 public class FilteredProducts {
+    @LumiSerializeField
+    public List<Product> products;
+
+    @LumiSerializeField
+    public Date date;
+
+    @LumiSerializeField
+    public float price;
 }
--- a/src/main/java/org/lumijiez/models/Product.java
+++ b/src/main/java/org/lumijiez/models/Product.java
@@ -1,4 +1,45 @@
 package org.lumijiez.models;

+import org.lumijiez.serializer.LumiSerializable;
+import org.lumijiez.serializer.LumiSerializeField;
+
+@LumiSerializable
 public class Product {
+
+    @LumiSerializeField
+    public String id;
+
+    @LumiSerializeField
+    public String name;
+
+    @LumiSerializeField
+    public String imageUrl;
+
+    @LumiSerializeField
+    public String specifications;
+
+    @LumiSerializeField
+    public String oldPrice;
+
+    @LumiSerializeField
+    public String newPrice;
+
+    @LumiSerializeField
+    public String discount;
+
+    @LumiSerializeField
+    public String productLink;
+
+    public Product() {}
+
+    public Product(String id, String name, String imageUrl, String specifications, String oldPrice, String newPrice, String discount, String productLink) {
+        this.id = id;
+        this.name = name;
+        this.imageUrl = imageUrl;
+        this.specifications = specifications;
+        this.oldPrice = oldPrice;
+        this.newPrice = newPrice;
+        this.discount = discount;
+        this.productLink = productLink;
+    }
 }
--- a/src/main/java/org/lumijiez/network/TCPClient.java
+++ b/src/main/java/org/lumijiez/network/TCPClient.java
@@ -1,4 +1,93 @@
 package org.lumijiez.network;

+import javax.net.ssl.SSLSocket;
+import javax.net.ssl.SSLSocketFactory;
+import java.io.*;
+import java.net.Socket;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+
 public class TCPClient {
-}
+    public static String getHttps(String url) {
+        try {
+            URI uri = new URI(url);
+            String host = uri.getHost();
+            String path = uri.getRawPath();
+            String query = uri.getRawQuery();
+            int port = uri.getPort() == -1 ? 443 : uri.getPort();
+
+            SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
+            SSLSocket socket = (SSLSocket) factory.createSocket(host, port);
+            socket.setEnabledProtocols(socket.getSupportedProtocols());
+            socket.startHandshake();
+
+            String requestPath = path + (query != null ? "?" + query : "");
+
+            String request =
+                    "GET " + requestPath + " HTTP/1.1\r\n" +
+                    "Host: " + host + "\r\n" +
+                    "Connection: close\r\n\r\n";
+
+            return socketIo(socket, request);
+        } catch (IOException | URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static String checkJson(String jsonData) {
+        return sendData("application/json", jsonData);
+    }
+
+    public static String checkXml(String xmlData) {
+        return sendData("application/xml", xmlData);
+    }
+
+    private static String sendData(String contentType, String data) {
+        try {
+            URI uri = new URI("http://localhost:8000/upload");
+            String host = uri.getHost();
+            int port = uri.getPort() == -1 ? 80 : uri.getPort();
+
+            Socket socket = new Socket(host, port);
+
+            String username = "500";
+            String password = "408";
+            String auth = username + ":" + password;
+            String encodedAuth = Base64.getEncoder().encodeToString(auth.getBytes());
+
+            String request =
+                            "POST " + uri.getPath() + " HTTP/1.1\r\n" +
+                            "Host: " + host + "\r\n" +
+                            "Content-Type: " + contentType + "\r\n" +
+                            "Content-Length: " + data.getBytes(StandardCharsets.UTF_8).length + "\r\n" +
+                            "Authorization: Basic " + encodedAuth + "\r\n" +
+                            "Connection: close\r\n\r\n" +
+                            data;
+
+            String response = socketIo(socket, request);
+
+            return "Status Code: " + response.split("\n")[0].split(" ")[1];
+        } catch (IOException | URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static String socketIo(Socket socket, String request) throws IOException {
+        OutputStream outputStream = socket.getOutputStream();
+        outputStream.write(request.getBytes());
+        outputStream.flush();
+
+        BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+        String line;
+        StringBuilder response = new StringBuilder();
+        while ((line = reader.readLine()) != null) {
+            response.append(line).append("\n");
+        }
+        reader.close();
+        socket.close();
+
+        return response.toString();
+    }
+}
--- a/src/main/java/org/lumijiez/parsers/DarwinParser.java
+++ b/src/main/java/org/lumijiez/parsers/DarwinParser.java
@@ -1,4 +1,44 @@
 package org.lumijiez.parsers;

 public class DarwinParser {
-}
+    public static String extractProductList(String html) {
+        String divStart = "<div class=\"item-products ga-list\" data-list-name=\"Căutare\">";
+        String divEnd = "</div>";
+
+        int startIndex = html.indexOf(divStart);
+        if (startIndex == -1) {
+            return "Product list div not found";
+        }
+
+        int endIndex = -1;
+        int nestedLevel = 1;
+        int searchStartIndex = startIndex + divStart.length();
+
+        while (nestedLevel > 0 && searchStartIndex < html.length()) {
+            int nextDivStart = html.indexOf("<div", searchStartIndex);
+            int nextDivEnd = html.indexOf(divEnd, searchStartIndex);
+
+            if (nextDivEnd == -1) {
+                return "Malformed HTML: couldn't find closing div";
+            }
+
+            if (nextDivStart != -1 && nextDivStart < nextDivEnd) {
+                nestedLevel++;
+                searchStartIndex = nextDivStart + 1;
+            } else {
+                nestedLevel--;
+                if (nestedLevel == 0) {
+                    endIndex = nextDivEnd + divEnd.length();
+                } else {
+                    searchStartIndex = nextDivEnd + 1;
+                }
+            }
+        }
+
+        if (endIndex == -1) {
+            return "Malformed HTML: couldn't find matching closing div";
+        }
+
+        return html.substring(startIndex, endIndex);
+    }
+}
--- a/src/main/java/org/lumijiez/parsers/DarwinProductParser.java
+++ b/src/main/java/org/lumijiez/parsers/DarwinProductParser.java
@@ -1,4 +1,68 @@
 package org.lumijiez.parsers;

+import org.lumijiez.models.Product;
+import org.lumijiez.network.TCPClient;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public class DarwinProductParser {
+    public static List<Product> parseProducts(String html) {
+        List<Product> products = new ArrayList<>();
+        String productPattern = "<div class=\"col-6 col-md-4 col-lg-3 night-mode\">.*?</div>\\s*</figure>\\s*</div>";
+        Pattern pattern = Pattern.compile(productPattern, Pattern.DOTALL);
+        Matcher matcher = pattern.matcher(html);
+
+        while (matcher.find()) {
+            String productHtml = matcher.group();
+            Product product = extractProductInfo(productHtml);
+            if (product != null) {
+                products.add(product);
+            }
+        }
+
+        return products;
+    }
+
+    private static Product extractProductInfo(String productHtml) {
+        String name = extractWithRegex(productHtml, "title=\"([^\"]+)\"\\s+class=\"ga-item\"");
+        String imageUrl = extractWithRegex(productHtml, "src=\"([^\"]+)\"");
+        String specifications = extractWithRegex(productHtml, "<span class=\"specification d-block\">([^<]+)</span>");
+        String oldPrice = extractWithRegex(productHtml, "<span class=\"last-price\">([^<]+)</span>");
+        String newPrice = extractWithRegex(productHtml, "<span class=\"price-new\"><b>([^<]+)</b>");
+        String discount = extractWithRegex(productHtml, "<span class=\"difprice aclas\" title=\"([^\"]+)\">");
+        String productLink = extractWithRegex(productHtml, "href=\"([^\"]+)\"\\s+title=\"[^\"]+\"\\s+class=\"ga-item\"");
+        String id = extractId(productLink);
+        if (name == null || newPrice == null) {
+            return null;
+        }
+
+        return new Product(id, name, imageUrl, specifications, oldPrice, newPrice, discount, productLink);
+    }
+
+    private static String extractWithRegex(String input, String regex) {
+        Pattern pattern = Pattern.compile(regex);
+        Matcher matcher = pattern.matcher(input);
+        if (matcher.find()) {
+            return matcher.group(1).trim();
+        }
+        return null;
+    }
+
+    private static String extractId(String productLink) {
+        String body = TCPClient.getHttps(productLink);
+
+        String regex = "ID produs:\\s*<strong[^>]*>\\s*(\\d{2}\\.\\d{8}\\.\\d{3})\\s*</strong>";
+
+        Pattern pattern = Pattern.compile(regex);
+        Matcher matcher = pattern.matcher(body);
+
+        if (matcher.find()) {
+            return matcher.group(1);
+        }
+
+        return "0";
+    }
 }
--- a/src/main/java/org/lumijiez/parsers/DarwinProductProcessor.java
+++ b/src/main/java/org/lumijiez/parsers/DarwinProductProcessor.java
@@ -1,4 +1,81 @@
 package org.lumijiez.parsers;

+import org.lumijiez.models.FilteredProducts;
+import org.lumijiez.models.Product;
+
+import java.text.NumberFormat;
+import java.text.ParseException;
+import java.time.Instant;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+import java.util.stream.Collectors;
+
 public class DarwinProductProcessor {
-}
+
+    public static FilteredProducts processProducts(List<Product> products, float minPrice, float maxPrice) {
+        List<Product> filteredProducts = products.stream()
+                .map(DarwinProductProcessor::convertPricesToEUR)
+                .filter(product -> isInPriceRange(product, minPrice, maxPrice))
+                .collect(Collectors.toList());
+
+        float totalPrice = filteredProducts.stream()
+                .map(DarwinProductProcessor::getPrice)
+                .reduce(0f, Float::sum);
+
+        FilteredProducts result = new FilteredProducts();
+        result.products = filteredProducts;
+        result.date = Date.from(Instant.now());
+        result.price = totalPrice;
+
+        return result;
+    }
+
+    private static Product convertPricesToEUR(Product product) {
+        product.oldPrice = convertToEUR(product.oldPrice);
+        product.newPrice = convertToEUR(product.newPrice);
+        product.discount = convertToEUR(product.discount);
+        return product;
+    }
+
+    private static String convertToEUR(String priceInMDL) {
+        if (priceInMDL == null || priceInMDL.isEmpty()) {
+            return null;
+        }
+        try {
+            NumberFormat format = NumberFormat.getInstance(Locale.forLanguageTag("ro-RO"));
+            Number number = format.parse(priceInMDL.replaceAll("[^\\d]", ""));
+            float price = number.floatValue();
+            return String.format("%.2f EUR", price / 19);
+        } catch (ParseException e) {
+            System.out.println(Arrays.toString(e.getStackTrace()));
+            return null;
+        }
+    }
+
+    private static boolean isInPriceRange(Product product, float minPrice, float maxPrice) {
+        float price = getPrice(product);
+        return price >= minPrice && price <= maxPrice;
+    }
+
+    private static float getPrice(Product product) {
+        if (product.newPrice != null) {
+            return parsePrice(product.newPrice);
+        }
+        return 0f;
+    }
+
+    private static float parsePrice(String priceInEUR) {
+        if (priceInEUR == null) {
+            return 0f;
+        }
+        try {
+            String numericPart = priceInEUR.replaceAll("[^\\d.]", "");
+            return Float.parseFloat(numericPart);
+        } catch (NumberFormatException e) {
+            System.out.println(Arrays.toString(e.getStackTrace()));
+            return 0f;
+        }
+    }
+}
--- a/src/main/java/org/lumijiez/serializer/JsonFileWriter.java
+++ b/src/main/java/org/lumijiez/serializer/JsonFileWriter.java
@@ -1,4 +1,32 @@
 package org.lumijiez.serializer;

+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Arrays;
+
 public class JsonFileWriter {
-}
+    public static void saveJsonToFile(Object objectToSerialize, String filePath) throws IllegalAccessException {
+        String jsonOutput = Lumi.toJson(objectToSerialize);
+
+        File file = new File(filePath);
+        BufferedWriter writer = null;
+
+        try {
+            writer = new BufferedWriter(new FileWriter(file));
+            writer.write(jsonOutput);
+            System.out.println("JSON saved to " + filePath);
+        } catch (IOException e) {
+            System.out.println(Arrays.toString(e.getStackTrace()));
+        } finally {
+            if (writer != null) {
+                try {
+                    writer.close();
+                } catch (IOException e) {
+                    System.out.println(Arrays.toString(e.getStackTrace()));
+                }
+            }
+        }
+    }
+}
--- a/src/main/java/org/lumijiez/serializer/Lumi.java
+++ b/src/main/java/org/lumijiez/serializer/Lumi.java
@@ -0,0 +1,217 @@
+package org.lumijiez.serializer;
+
+import java.lang.reflect.Field;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Lumi {
+    public static String toJson(Object obj) throws IllegalAccessException {
+        if (!obj.getClass().isAnnotationPresent(LumiSerializable.class)) {
+            throw new IllegalArgumentException("Class is not marked as LumiSerializable");
+        }
+
+        StringBuilder json = new StringBuilder("{");
+        Field[] fields = obj.getClass().getDeclaredFields();
+        List<String> serializedFields = new ArrayList<>();
+
+        for (Field field : fields) {
+            if (field.isAnnotationPresent(LumiSerializeField.class)) {
+                field.setAccessible(true);
+                String fieldName = field.getName();
+                Object value = field.get(obj);
+                serializedFields.add("\"" + fieldName + "\":" + valueToJson(value));
+            }
+        }
+
+        json.append(String.join(",", serializedFields));
+        json.append("}");
+        return json.toString();
+    }
+
+    private static String valueToJson(Object value) {
+        if (value == null) {
+            return "null";
+        } else if (value instanceof String) {
+            return "\"" + escapeJsonString((String) value) + "\"";
+        } else if (value instanceof Number || value instanceof Boolean) {
+            return value.toString();
+        } else if (value instanceof List) {
+            return listToJson((List<?>) value);
+        } else if (value instanceof Date) {
+            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
+            return "\"" + dateFormat.format((Date) value) + "\"";
+        } else {
+            try {
+                return toJson(value);
+            } catch (IllegalAccessException e) {
+                return "\"" + value + "\"";
+            }
+        }
+    }
+
+    private static String listToJson(List<?> list) {
+        List<String> jsonItems = new ArrayList<>();
+        for (Object item : list) {
+            jsonItems.add(valueToJson(item));
+        }
+        return "[" + String.join(",", jsonItems) + "]";
+    }
+
+    private static String escapeJsonString(String input) {
+        return input.replace("\"", "\\\"")
+                .replace("\n", "\\n")
+                .replace("\r", "\\r")
+                .replace("\t", "\\t");
+    }
+
+    public static String toXml(Object obj) throws IllegalAccessException {
+        if (!obj.getClass().isAnnotationPresent(LumiSerializable.class)) {
+            throw new IllegalArgumentException("Class is not marked as LumiSerializable");
+        }
+
+        StringBuilder xml = new StringBuilder("<" + obj.getClass().getSimpleName() + ">");
+        Field[] fields = obj.getClass().getDeclaredFields();
+
+        for (Field field : fields) {
+            if (field.isAnnotationPresent(LumiSerializeField.class)) {
+                field.setAccessible(true);
+                String fieldName = field.getName();
+                Object value = field.get(obj);
+                xml.append(valueToXml(fieldName, value));
+            }
+        }
+
+        xml.append("</").append(obj.getClass().getSimpleName()).append(">");
+        return xml.toString();
+    }
+
+    private static String valueToXml(String fieldName, Object value) {
+        StringBuilder xml = new StringBuilder("<" + fieldName + ">");
+
+        if (value == null) {
+            xml.append("null");
+        } else if (value instanceof String || value instanceof Number || value instanceof Boolean) {
+            xml.append(escapeXmlString(value.toString()));
+        } else if (value instanceof List) {
+            xml.append(listToXml((List<?>) value));
+        } else if (value instanceof Date) {
+            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
+            xml.append(escapeXmlString(dateFormat.format((Date) value)));
+        } else if (value instanceof java.time.LocalDate) {
+            xml.append(escapeXmlString(((java.time.LocalDate) value).toString()));
+        } else if (value instanceof java.time.LocalDateTime) {
+            xml.append(escapeXmlString(((java.time.LocalDateTime) value).toString()));
+        } else if (value instanceof java.time.ZonedDateTime) {
+            xml.append(escapeXmlString(((java.time.ZonedDateTime) value).toString()));
+        } else {
+            try {
+                xml.append(toXml(value));
+            } catch (IllegalAccessException e) {
+                xml.append(escapeXmlString(value.toString()));
+            }
+        }
+
+        xml.append("</").append(fieldName).append(">");
+        return xml.toString();
+    }
+
+    private static String listToXml(List<?> list) {
+        StringBuilder xml = new StringBuilder();
+        for (Object item : list) {
+            xml.append("<item>");
+            xml.append(valueToXml("value", item));
+            xml.append("</item>");
+        }
+        return xml.toString();
+    }
+
+    private static String escapeXmlString(String input) {
+        return input.replace("&", "&amp;")
+                .replace("<", "&lt;")
+                .replace(">", "&gt;")
+                .replace("\"", "&quot;")
+                .replace("'", "&apos;");
+    }
+
+    public static <T> T fromJson(String json, Class<T> clazz) throws Exception {
+        if (!clazz.isAnnotationPresent(LumiSerializable.class)) {
+            throw new IllegalArgumentException("Class is not marked as LumiSerializable");
+        }
+
+        T obj = clazz.getDeclaredConstructor().newInstance();
+        Pattern pattern = Pattern.compile("\"(\\w+)\"\\s*:\\s*(.+?)(?=,\\s*\"|\\})");
+        Matcher matcher = pattern.matcher(json);
+
+        while (matcher.find()) {
+            String fieldName = matcher.group(1);
+            String fieldValue = matcher.group(2).trim();
+
+            Field field = getFieldByName(clazz, fieldName);
+            if (field != null && field.isAnnotationPresent(LumiSerializeField.class)) {
+                field.setAccessible(true);
+                field.set(obj, parseValue(fieldValue, field.getType()));
+            }
+        }
+        return obj;
+    }
+
+    public static <T> T fromXml(String xml, Class<T> clazz) throws Exception {
+        if (!clazz.isAnnotationPresent(LumiSerializable.class)) {
+            throw new IllegalArgumentException("Class is not marked as LumiSerializable");
+        }
+
+        T obj = clazz.getDeclaredConstructor().newInstance();
+        Pattern pattern = Pattern.compile("<(\\w+)>(.*?)</\\1>");
+        Matcher matcher = pattern.matcher(xml);
+
+        while (matcher.find()) {
+            String fieldName = matcher.group(1);
+            String fieldValue = matcher.group(2);
+
+            Field field = getFieldByName(clazz, fieldName);
+            if (field != null && field.isAnnotationPresent(LumiSerializeField.class)) {
+                field.setAccessible(true);
+                field.set(obj, parseValue(fieldValue, field.getType()));
+            }
+        }
+
+        return obj;
+    }
+
+    private static Field getFieldByName(Class<?> clazz, String fieldName) {
+        try {
+            return clazz.getDeclaredField(fieldName);
+        } catch (NoSuchFieldException e) {
+            return null;
+        }
+    }
+
+    private static Object parseValue(String value, Class<?> type) {
+        if (type == String.class) {
+            return value.replaceAll("^\"|\"$", "");
+        } else if (type == int.class || type == Integer.class) {
+            return Integer.parseInt(value);
+        } else if (type == long.class || type == Long.class) {
+            return Long.parseLong(value);
+        } else if (type == double.class || type == Double.class) {
+            return Double.parseDouble(value);
+        } else if (type == boolean.class || type == Boolean.class) {
+            return Boolean.parseBoolean(value);
+        } else if (type == float.class || type == Float.class) {
+            return Float.parseFloat(value);
+        }
+        return value;
+    }
+
+    public static void xmlToFile(Object obj, String fileName) throws IllegalAccessException {
+        XmlFileWriter.saveXmlToFile(obj, fileName);
+    }
+
+    public static void jsonToFile(Object obj, String fileName) throws IllegalAccessException {
+        JsonFileWriter.saveJsonToFile(obj, fileName);
+    }
+}
--- a/src/main/java/org/lumijiez/serializer/LumiSerializable.java
+++ b/src/main/java/org/lumijiez/serializer/LumiSerializable.java
@@ -0,0 +1,10 @@
+package org.lumijiez.serializer;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface LumiSerializable {}
--- a/src/main/java/org/lumijiez/serializer/LumiSerializeField.java
+++ b/src/main/java/org/lumijiez/serializer/LumiSerializeField.java
@@ -0,0 +1,10 @@
+package org.lumijiez.serializer;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.FIELD)
+public @interface LumiSerializeField {}
--- a/src/main/java/org/lumijiez/serializer/LumiSerializer.java
+++ b/src/main/java/org/lumijiez/serializer/LumiSerializer.java
@@ -1,4 +0,0 @@
-package org.lumijiez.serializer;
-
-public class LumiSerializer {
-}
--- a/src/main/java/org/lumijiez/serializer/XmlFileWriter.java
+++ b/src/main/java/org/lumijiez/serializer/XmlFileWriter.java
@@ -0,0 +1,33 @@
+package org.lumijiez.serializer;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Arrays;
+
+public class XmlFileWriter {
+    public static void saveXmlToFile(Object objectToSerialize, String filePath) throws IllegalAccessException {
+        String xmlOutput = Lumi.toXml(objectToSerialize);
+
+        File file = new File(filePath);
+        BufferedWriter writer = null;
+
+        try {
+            writer = new BufferedWriter(new FileWriter(file));
+            writer.write(xmlOutput);
+            System.out.println("XML saved to " + filePath);
+        } catch (IOException e) {
+            System.out.println(Arrays.toString(e.getStackTrace()));
+        } finally {
+            if (writer != null) {
+                try {
+                    writer.close();
+                } catch (IOException e) {
+                    System.out.println(Arrays.toString(e.getStackTrace()));
+                }
+            }
+        }
+    }
+}
+