Close Scanner in tools/permissions; make use of more generic services

- Close scanner for all cases
- Replace read from file with the one from the File service
- Rename file service class to FileUtils to better reflect its purpose

src/tools/permissions/PermissionNodesGatherer.java

@@ -3,12 +3,9 @@ package permissions;
 import fr.xephi.authme.permission.AdminPermission;
 import fr.xephi.authme.permission.PermissionNode;
 import fr.xephi.authme.permission.PlayerPermission;
-import fr.xephi.authme.util.StringUtils;
+import utils.FileUtils;
+import utils.ToolsConstants;
 
-import java.io.IOException;
-import java.nio.charset.Charset;
-import java.nio.file.Files;
-import java.nio.file.Paths;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.Map;
@@ -23,10 +20,6 @@ import java.util.regex.Pattern;
  */
 public class PermissionNodesGatherer {
 
-    /** The folder in which the implementations of {@link PermissionNode} reside. */
-    private static final String PERMISSION_NODE_SOURCE_FOLDER =
-        "src/main/java/fr/xephi/authme/permission/";
-
     /**
      * Regular expression that should match the JavaDoc comment above an enum, <i>including</i>
      * the name of the enum value. The first group (i.e. {@code \\1}) should be the JavaDoc description;
@@ -100,14 +93,8 @@ public class PermissionNodesGatherer {
      * @return Source code of the file
      */
     private static <T extends Enum<T> & PermissionNode> String getSourceForClass(Class<T> clazz) {
-        String classFile = PERMISSION_NODE_SOURCE_FOLDER + clazz.getSimpleName() + ".java";
-        Charset cs = Charset.forName("utf-8");
-        try {
-            return StringUtils.join("\n",
-                Files.readAllLines(Paths.get(classFile), cs));
-        } catch (IOException e) {
-            throw new RuntimeException("Failed to get the source for class '" + clazz.getSimpleName() + "'");
-        }
+        String classFile = ToolsConstants.MAIN_SOURCE_ROOT + clazz.getName().replace(".", "/") + ".java";
+        return FileUtils.readFromFile(classFile);
     }
 
 }

src/tools/permissions/PermissionsListWriter.java

@@ -1,7 +1,7 @@
 package permissions;
 
 import utils.ANewMap;
-import utils.GeneratedFileWriter;
+import utils.FileUtils;
 import utils.TagReplacer;
 import utils.ToolsConstants;
 
@@ -23,17 +23,16 @@ public class PermissionsListWriter {
         System.out.println("Include description? [Enter 'n' for no]");
         boolean includeDescription = !matches("n", scanner);
 
-        if (!includeDescription) {
-            outputSimpleList();
-            return;
+        boolean writeToFile = false;
+        if (includeDescription) {
+            System.out.println("Write to file? [Enter 'n' for console output]");
+            writeToFile = !matches("n", scanner);
         }
-
-        System.out.println("Write to file? [Enter 'n' for console output]");
-        boolean writeToFile = !matches("n", scanner);
         scanner.close();
 
-
-        if (writeToFile) {
+        if (!includeDescription) {
+            outputSimpleList();
+        } else if (writeToFile) {
             generateAndWriteFile();
         } else {
             System.out.println(generatePermissionsList());
@@ -45,7 +44,7 @@ public class PermissionsListWriter {
         final String permissionsTagValue = generatePermissionsList();
 
         Map<String, Object> tags = ANewMap.<String, Object>with("permissions", permissionsTagValue).build();
-        GeneratedFileWriter.generateFileFromTemplate(
+        FileUtils.generateFileFromTemplate(
             ToolsConstants.TOOLS_SOURCE_ROOT + "permissions/permission_nodes.tpl.md", PERMISSIONS_OUTPUT_FILE, tags);
         System.out.println("Wrote to '" + PERMISSIONS_OUTPUT_FILE + "'");
         System.out.println("Before committing, please verify the output!");
@@ -55,7 +54,7 @@ public class PermissionsListWriter {
         PermissionNodesGatherer gatherer = new PermissionNodesGatherer();
         Map<String, String> permissions = gatherer.gatherNodesWithJavaDoc();
 
-        final String template = GeneratedFileWriter.readFromToolsFile("permissions/permission_node_entry.tpl.md");
+        final String template = FileUtils.readFromToolsFile("permissions/permission_node_entry.tpl.md");
         StringBuilder sb = new StringBuilder();
 
         for (Map.Entry<String, String> entry : permissions.entrySet()) {

src/tools/utils/FileUtils.java

@@ -7,13 +7,13 @@ import java.nio.file.Paths;
 import java.util.Map;
 
 /**
- * Utility class for writing a generated file with a timestamp.
+ * Utility class for reading from and writing to files.
  */
-public final class GeneratedFileWriter {
+public final class FileUtils {
 
     private final static Charset CHARSET = Charset.forName("utf-8");
 
-    private GeneratedFileWriter() {
+    private FileUtils() {
     }
 
     public static void generateFileFromTemplate(String templateFile, String destinationFile, Map<String, Object> tags) {
@@ -43,5 +43,4 @@ public final class GeneratedFileWriter {
         return readFromFile(ToolsConstants.TOOLS_SOURCE_ROOT + file);
     }
 
-
 }