Read file from web.

Author: HydrolienF

src/main/java/fr/formiko/utils/FLUFiles.java

@@ -2,6 +2,8 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.net.URI;
+import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.List;
@@ -30,6 +32,7 @@ private FLUFiles() {} // hide constructor
 
     public static String readFile(String path) { return internal.readFile(path); }
     public static List<String> readFileAsList(String path) { return internal.readFileAsList(path); }
+    public static String readFileFromWeb(String url) { return internal.readFileFromWeb(url); }
     public static boolean writeFile(String path, String content) { return false; }
     public static boolean appendToFile(String path, String content) { return false; }
 
@@ -133,7 +136,7 @@ private boolean move(String source, String destination) {
                 return false;
             }
         }
-        private static String readFile(String path) {
+        private String readFile(String path) {
             if (isAValidePath(path)) {
                 try {
                     // return Files.readAllLines(Paths.get(path));
@@ -145,7 +148,7 @@ private static String readFile(String path) {
                 return null;
             }
         }
-        private static List<String> readFileAsList(String path) {
+        private List<String> readFileAsList(String path) {
             if (isAValidePath(path)) {
                 try {
                     return Files.readAllLines(Paths.get(path));
@@ -156,5 +159,17 @@ private static List<String> readFileAsList(String path) {
                 return null;
             }
         }
+
+        private String readFileFromWeb(String urlString) {
+            if (urlString == null) {
+                return null;
+            }
+            try {
+                URL url = URI.create(urlString).toURL();
+                return new String(url.openStream().readAllBytes());
+            } catch (IOException e) {
+                return null;
+            }
+        }
     }
 }

src/test/java/fr/formiko/utils/FLUFilesTest.java

@@ -181,4 +181,24 @@ private static Stream<Arguments> testReadFileAsListSource() {
                 Arguments.of(TEST_PATH + "existingDir/subDir/", false, null),
                 Arguments.of(TEST_PATH + "existingDir/subDir/existingFile.txt", true, List.of("ipnzéfl", "zgrebinoa", "rez bzn,")));
     }
+
+    @ParameterizedTest
+    @MethodSource("testReadFileFromWebSource")
+    void testReadFileFromWeb(String url, boolean shouldWork, String content) {
+        if (shouldWork) {
+            assertEquals(content, FLUFiles.readFileFromWeb(url));
+        } else {
+            assertNull(FLUFiles.readFileFromWeb(url));
+        }
+    }
+
+    private static Stream<Arguments> testReadFileFromWebSource() { return Stream.of(Arguments.of(
+            "https://gist.githubusercontent.com/HydrolienF/0dc21ed2c0788b4de206102871410d4b/raw/a85c8bcf47ae0c081841df756c68122c83151747/fr.json",
+            true, """
+                    {
+                      "schemaVersion": 1,
+                      "label": "French",
+                      "message": "100%",
+                      "color": "00FF00"
+                    }"""), Arguments.of(null, false, null), Arguments.of("h://unexisting.url", false, null)); }
 }