initial commit

src/main/java/zw/qantra/tm/utils/ContextUtils.java

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+package zw.qantra.tm.utils;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.util.StdDateFormat;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class ContextUtils {
+    private final ObjectMapper mapper;
+
+    public String getPrettyObject(Object object) {
+        try {
+            return this.mapper
+                    .disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
+                    .setDateFormat(new StdDateFormat().withColonInTimeZone(true))
+                    .registerModule(new JavaTimeModule())
+                    .setSerializationInclusion(JsonInclude.Include.NON_NULL)
+                    .writerWithDefaultPrettyPrinter()
+                    .writeValueAsString(object);
+        } catch (JsonProcessingException e) {
+            System.out.print(e.getMessage());
+        }
+
+        return null;
+    }
+
+}

src/main/java/zw/qantra/tm/utils/Utils.java

@@ -0,0 +1,75 @@
+package zw.qantra.tm.utils;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.util.StdDateFormat;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.UUID;
+
+public class Utils {
+    public static String hashPassword(String password) {
+        try {
+            // Create a MessageDigest instance for SHA-256
+            MessageDigest digest = MessageDigest.getInstance("SHA-256");
+
+            // Perform the hashing
+            byte[] hashedBytes = digest.digest(password.getBytes());
+
+            // Convert the hashed bytes to a hexadecimal string
+            StringBuilder hexString = new StringBuilder();
+            for (byte b : hashedBytes) {
+                String hex = Integer.toHexString(0xff & b);
+                if (hex.length() == 1) {
+                    hexString.append('0');
+                }
+                hexString.append(hex);
+            }
+
+            return hexString.toString();
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException("Error hashing password", e);
+        }
+    }
+
+    public static String getUid(){
+        return UUID.randomUUID().toString();
+    }
+    public static <T> T getJson(String json, Class<T> clazz){
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        mapper.setDateFormat(new StdDateFormat().withColonInTimeZone(true));
+        mapper.registerModule(new JavaTimeModule());
+        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+
+        Object obj = null;
+        try {
+            obj = mapper.readValue(json, clazz);
+        } catch (JsonProcessingException e) {
+            e.printStackTrace();
+        }
+
+        return (T) obj;
+    }
+
+    public static String setJson(Object obj){
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        mapper.setDateFormat(new StdDateFormat().withColonInTimeZone(true));
+        mapper.registerModule(new JavaTimeModule());
+        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+
+        String json = "";
+        try {
+            json = mapper.writeValueAsString(obj);
+        } catch (JsonProcessingException e) {
+            e.printStackTrace();
+        }
+
+        return json;
+    }
+}