From 53695d49d8b4dd282774596a45633e5f39ab7edc Mon Sep 17 00:00:00 2001
From: Mattia Bertorello <m.bertorello@arduino.cc>
Date: Thu, 4 Jul 2019 18:14:06 +0200
Subject: [PATCH] Add comments

---
 .../src/cc/arduino/utils/network/FileDownloaderCache.java      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arduino-core/src/cc/arduino/utils/network/FileDownloaderCache.java b/arduino-core/src/cc/arduino/utils/network/FileDownloaderCache.java
index 41995b7ab..350f1f1f3 100644
--- a/arduino-core/src/cc/arduino/utils/network/FileDownloaderCache.java
+++ b/arduino-core/src/cc/arduino/utils/network/FileDownloaderCache.java
@@ -173,8 +173,10 @@ public class FileDownloaderCache {
     if (cachedFiles != null) {
       synchronized (cachedFiles) {
         ObjectMapper mapper = new ObjectMapper();
+        // Generate a pretty json
         mapper.enable(SerializationFeature.INDENT_OUTPUT);
         final ObjectNode objectNode = mapper.createObjectNode();
+        // Generate a json {"files":[...{files_info}...]}
         objectNode.putArray("files").addAll(
           cachedFiles.values().stream()
             .map((v) -> mapper.convertValue(v, JsonNode.class))
@@ -184,6 +186,7 @@ public class FileDownloaderCache {
         if (Files.notExists(cachedFileInfo)) {
           Files.createDirectories(cachedFileInfo.getParent());
         }
+        // Write to cache.json
         mapper.writeValue(cachedFileInfo.toFile(), objectNode);
       }
     }