src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/FileAccess.java
changeset 58863 c16ac7a2eba4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/FileAccess.java	Wed Oct 30 19:43:52 2019 +0100
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.jfr.internal.consumer;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.file.DirectoryStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+// Protected by modular boundaries.
+public abstract class FileAccess {
+    public final static FileAccess UNPRIVILIGED = new UnPriviliged();
+
+    public abstract RandomAccessFile openRAF(File f, String mode) throws IOException;
+
+    public abstract DirectoryStream<Path> newDirectoryStream(Path repository) throws IOException;
+
+    public abstract String getAbsolutePath(File f) throws IOException;
+
+    public abstract long length(File f) throws IOException;
+
+    public abstract long fileSize(Path p) throws IOException;
+
+    private static class UnPriviliged extends FileAccess {
+        @Override
+        public RandomAccessFile openRAF(File f, String mode) throws IOException {
+            return new RandomAccessFile(f, mode);
+        }
+
+        @Override
+        public DirectoryStream<Path> newDirectoryStream(Path dir) throws IOException {
+            return Files.newDirectoryStream(dir);
+        }
+
+        @Override
+        public String getAbsolutePath(File f) throws IOException {
+            return f.getAbsolutePath();
+        }
+
+        @Override
+        public long length(File f) throws IOException {
+            return f.length();
+        }
+
+        @Override
+        public long fileSize(Path p) throws IOException {
+            return Files.size(p);
+        }
+    }
+}