8136718: [TESTBUG] introduce FileInstaller functionality

Reviewed-by: iignatyev

hotspot/test/testlibrary/jdk/test/lib/FileInstaller.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2015, 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.test.lib;
+
+import java.io.IOException;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.BasicFileAttributes;
+
+/**
+ * Copy a resource: file or directory recursively, using relative path(src and dst)
+ * which are applied to test source directory(src) and current directory(dst)
+ */
+public class FileInstaller {
+    /**
+     * @param args source and destination
+     * @throws IOException if an I/O error occurs
+     */
+    public static void main(String[] args) throws IOException {
+        if (args.length != 2) {
+            throw new IllegalArgumentException("Unexpected number of arguments for file copy");
+        }
+        Path src = Paths.get(Utils.TEST_SRC, args[0]);
+        Path dst = Paths.get(args[1]);
+        if (src.toFile().exists()) {
+            if (src.toFile().isDirectory()) {
+                Files.walkFileTree(src, new CopyFileVisitor(src, dst));
+            } else {
+                Path dstDir = dst.getParent();
+                if (!dstDir.toFile().exists()) {
+                    Files.createDirectories(dstDir);
+                }
+                Files.copy(src, dst, StandardCopyOption.REPLACE_EXISTING);
+            }
+        } else {
+            throw new IOException("Can't find source " + src);
+        }
+    }
+
+    private static class CopyFileVisitor extends SimpleFileVisitor<Path> {
+        private final Path copyFrom;
+        private final Path copyTo;
+
+        public CopyFileVisitor(Path copyFrom, Path copyTo) {
+            this.copyFrom = copyFrom;
+            this.copyTo = copyTo;
+        }
+
+        @Override
+        public FileVisitResult preVisitDirectory(Path file,
+                BasicFileAttributes attrs) throws IOException {
+            Path relativePath = file.relativize(copyFrom);
+            Path destination = copyTo.resolve(relativePath);
+            if (!destination.toFile().exists()) {
+                Files.createDirectories(destination);
+            }
+            return FileVisitResult.CONTINUE;
+        }
+
+        @Override
+        public FileVisitResult visitFile(Path file,
+                BasicFileAttributes attrs) throws IOException {
+            if (!file.toFile().isFile()) {
+                return FileVisitResult.CONTINUE;
+            }
+            Path relativePath = copyFrom.relativize(file);
+            Path destination = copyTo.resolve(relativePath);
+            Files.copy(file, destination, StandardCopyOption.COPY_ATTRIBUTES);
+            return FileVisitResult.CONTINUE;
+        }
+    }
+}

hotspot/test/testlibrary/jdk/test/lib/Utils.java

@@ -64,6 +64,11 @@ public final class Utils {
      */
     public static final String JAVA_OPTIONS = System.getProperty("test.java.opts", "").trim();
 
+    /**
+     * Returns the value of 'test.src' system property.
+     */
+    public static final String TEST_SRC = System.getProperty("test.src", "").trim();
+
     private static Unsafe unsafe = null;
 
     /**