tweak pretty print and datetime serialization

1 files changed, 18 insertions, 1 deletions

diff --git a/src/main/java/design/persistence/JSONPersonalDatabase.java b/src/main/java/design/persistence/JSONPersonalDatabase.java
index dd63407..0efa362 100644
--- a/src/main/java/design/persistence/JSONPersonalDatabase.java
+++ b/src/main/java/design/persistence/JSONPersonalDatabase.java
@@ -5,8 +5,11 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.PropertyAccessor;
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.util.DefaultIndenter;
+import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
 import com.fasterxml.jackson.databind.*;
 import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import com.fasterxml.jackson.module.paramnames.ParameterNamesModule;
 import design.model.Course;
 import design.model.Golfer;
@@ -33,6 +36,7 @@ public class JSONPersonalDatabase implements PersonalDatabase {
         mapper.registerModule(module);
         mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
         mapper.registerModule(new ParameterNamesModule(JsonCreator.Mode.PROPERTIES));
+        mapper.registerModule(new JavaTimeModule());
 
         try {
             load();
@@ -51,7 +55,7 @@ public class JSONPersonalDatabase implements PersonalDatabase {
 
     private void save() throws IOException {
         Golfer[] data = cache.values().toArray(Golfer[]::new);
-        mapper.writerWithDefaultPrettyPrinter().writeValue(file, data);
+        mapper.writer(new CustomPrettyPrinter()).writeValue(file, data);
     }
 
     @Override
@@ -98,4 +102,17 @@ public class JSONPersonalDatabase implements PersonalDatabase {
             return masterDB.getCourse(id);
         }
     }
+
+    private static class CustomPrettyPrinter extends DefaultPrettyPrinter {
+        public CustomPrettyPrinter() {
+            super._arrayIndenter = new DefaultIndenter();
+            super._objectFieldValueSeparatorWithSpaces = _separators.getObjectFieldValueSeparator() + " ";
+            super._arrayEmptySeparator = "";
+        }
+
+        @Override
+        public CustomPrettyPrinter createInstance() {
+            return new CustomPrettyPrinter();
+        }
+    }
 }