From 1c21ab92804f720f9621597f78013afd4430934a Mon Sep 17 00:00:00 2001
From: Tim Van Wassenhove <github@timvw.be>
Date: Sun, 28 Feb 2016 09:22:38 +0100
Subject: [PATCH] Simple implementation to turn a Config into a
 java.util.Properties

---
 .../src/main/java/com/typesafe/config/Config.java   |  8 ++++++++
 .../java/com/typesafe/config/impl/SimpleConfig.java | 13 ++++++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/config/src/main/java/com/typesafe/config/Config.java b/config/src/main/java/com/typesafe/config/Config.java
index 68031861..0654c9d8 100644
--- a/config/src/main/java/com/typesafe/config/Config.java
+++ b/config/src/main/java/com/typesafe/config/Config.java
@@ -6,6 +6,7 @@ package com.typesafe.config;
 import java.time.Duration;
 import java.util.List;
 import java.util.Map;
+import java.util.Properties;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
 
@@ -1061,4 +1062,11 @@ public interface Config extends ConfigMergeable {
      * @return the new instance with the new map entry
      */
     Config withValue(String path, ConfigValue value);
+
+    /**
+     * Returns a {@code java.util.Properties} object for each entry in this Config instance.
+     *
+     * @return a new Properties instance
+     */
+    Properties toProperties();
 }
diff --git a/config/src/main/java/com/typesafe/config/impl/SimpleConfig.java b/config/src/main/java/com/typesafe/config/impl/SimpleConfig.java
index 2d76efb6..fbdc3397 100644
--- a/config/src/main/java/com/typesafe/config/impl/SimpleConfig.java
+++ b/config/src/main/java/com/typesafe/config/impl/SimpleConfig.java
@@ -15,8 +15,8 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.Properties;
 import java.util.concurrent.TimeUnit;
-
 import com.typesafe.config.Config;
 import com.typesafe.config.ConfigException;
 import com.typesafe.config.ConfigList;
@@ -1009,6 +1009,17 @@ final class SimpleConfig implements Config, MergeableValue, Serializable {
         return new SimpleConfig(root().withValue(path, v));
     }
 
+    @Override
+    public Properties toProperties() {
+        Properties properties = new Properties();
+        for(Map.Entry<String, ConfigValue> entry : entrySet()) {
+            String key = entry.getKey();
+            String value = entry.getValue().unwrapped().toString();
+            properties.setProperty(key, value);
+        }
+        return properties;
+    }
+
     SimpleConfig atKey(ConfigOrigin origin, String key) {
         return root().atKey(origin, key);
     }