Added methods U.propertiesToMap(properties) and U.mapToProperties(map)

Author: javadev

src/main/java/com/github/underscore/U.java

@@ -40,6 +40,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
+import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
@@ -48,6 +49,7 @@
 import java.util.Locale;
 import java.util.Map;
 import java.util.Optional;
+import java.util.Properties;
 import java.util.Set;
 import java.util.function.BiConsumer;
 import java.util.function.BiFunction;
@@ -3491,4 +3493,28 @@ public String toString() {
             return data.toString();
         }
     }
+
+    public static Map<String, Object> propertiesToMap(Properties properties) {
+        Map<String, Object> map = new LinkedHashMap<>();
+        if (properties != null && !properties.isEmpty()) {
+            Enumeration<?> enumProperties = properties.propertyNames();
+            while (enumProperties.hasMoreElements()) {
+                String name = (String)enumProperties.nextElement();
+                map.put(name, properties.getProperty(name));
+            }
+        }
+        return map;
+    }
+
+    public static Properties mapToProperties(Map<String, Object> map) {
+        Properties  properties = new Properties();
+        if (map != null) {
+            for (final Map.Entry<String, Object> entry : map.entrySet()) {
+                if (!isNull(entry.getValue())) {
+                    properties.put(entry.getKey(), String.valueOf(entry.getValue()));
+                }
+            }
+        }
+        return properties;
+    }
 }

src/test/java/com/github/underscore/UnderscoreTest.java

@@ -40,6 +40,7 @@
 import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.Optional;
+import java.util.Properties;
 import java.util.function.Predicate;
 import org.junit.jupiter.api.Test;
 
@@ -745,4 +746,53 @@ void jobtest() {
                         + "{string=Hear it all the time, come back rewind, longestWord=6}]",
                 result.toString());
     }
+
+    @Test
+    void testPropertiesToMap() {
+        Properties properties = new Properties();
+        properties.setProperty("key1", "value1");
+        properties.setProperty("key2", "value2");
+        properties.setProperty("key3", "value3");
+        Map<String, Object> map = U.propertiesToMap(properties);
+        assertEquals(3, map.size());
+        assertEquals("value1", map.get("key1"));
+        assertEquals("value2", map.get("key2"));
+        assertEquals("value3", map.get("key3"));
+    }
+
+    @Test
+    void testPropertiesToMapWithEmptyProperties() {
+        Properties properties = new Properties();
+        Map<String, Object> map = U.propertiesToMap(properties);
+        assertEquals(0, map.size());
+        Map<String, Object> map2 = U.propertiesToMap(null);
+        assertEquals(0, map.size());
+    }
+
+    @Test
+    void testMapToProperties() {
+        Map<String, Object> map = new LinkedHashMap<>();
+        map.put("key1", "value1");
+        map.put("key2", "value2");
+        map.put("key3", "value3");
+        Properties properties = U.mapToProperties(map);
+        assertEquals(3, properties.size());
+        assertEquals("value1", properties.getProperty("key1"));
+        assertEquals("value2", properties.getProperty("key2"));
+        assertEquals("value3", properties.getProperty("key3"));
+    }
+
+    @Test
+    void testMapToPropertiesWithNullValues() {
+        Map<String, Object> map = new LinkedHashMap<>();
+        map.put("key1", "value1");
+        map.put("key2", null);
+        map.put("key3", "value3");
+        Properties properties = U.mapToProperties(map);
+        assertEquals(2, properties.size());
+        assertEquals("value1", properties.getProperty("key1"));
+        assertEquals("value3", properties.getProperty("key3"));
+        Properties properties2 = U.mapToProperties(null);
+        assertEquals(0, properties2.size());
+    }
 }