8187443: Forest Consolidation: Move files to unified layout

Reviewed-by: darcy, ihse

src/java.base/share/classes/java/nio/file/spi/FileTypeDetector.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2007, 2011, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 java.nio.file.spi;
+
+import java.nio.file.Path;
+import java.io.IOException;
+
+/**
+ * A file type detector for probing a file to guess its file type.
+ *
+ * <p> A file type detector is a concrete implementation of this class, has a
+ * zero-argument constructor, and implements the abstract methods specified
+ * below.
+ *
+ * <p> The means by which a file type detector determines the file type is
+ * highly implementation specific. A simple implementation might examine the
+ * <em>file extension</em> (a convention used in some platforms) and map it to
+ * a file type. In other cases, the file type may be stored as a file <a
+ * href="../attribute/package-summary.html"> attribute</a> or the bytes in a
+ * file may be examined to guess its file type.
+ *
+ * @see java.nio.file.Files#probeContentType(Path)
+ *
+ * @since 1.7
+ */
+
+public abstract class FileTypeDetector {
+
+    private static Void checkPermission() {
+        SecurityManager sm = System.getSecurityManager();
+        if (sm != null)
+            sm.checkPermission(new RuntimePermission("fileTypeDetector"));
+        return null;
+    }
+    private FileTypeDetector(Void ignore) { }
+
+    /**
+     * Initializes a new instance of this class.
+     *
+     * @throws  SecurityException
+     *          If a security manager has been installed and it denies
+     *          {@link RuntimePermission}{@code ("fileTypeDetector")}
+     */
+    protected FileTypeDetector() {
+        this(checkPermission());
+    }
+
+    /**
+     * Probes the given file to guess its content type.
+     *
+     * <p> The means by which this method determines the file type is highly
+     * implementation specific. It may simply examine the file name, it may use
+     * a file <a href="../attribute/package-summary.html">attribute</a>,
+     * or it may examines bytes in the file.
+     *
+     * <p> The probe result is the string form of the value of a
+     * Multipurpose Internet Mail Extension (MIME) content type as
+     * defined by <a href="http://www.ietf.org/rfc/rfc2045.txt"><i>RFC&nbsp;2045:
+     * Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet
+     * Message Bodies</i></a>. The string must be parsable according to the
+     * grammar in the RFC 2045.
+     *
+     * @param   path
+     *          the path to the file to probe
+     *
+     * @return  The content type or {@code null} if the file type is not
+     *          recognized
+     *
+     * @throws  IOException
+     *          An I/O error occurs
+     * @throws  SecurityException
+     *          If the implementation requires to access the file, and a
+     *          security manager is installed, and it denies an unspecified
+     *          permission required by a file system provider implementation.
+     *          If the file reference is associated with the default file system
+     *          provider then the {@link SecurityManager#checkRead(String)} method
+     *          is invoked to check read access to the file.
+     *
+     * @see java.nio.file.Files#probeContentType
+     */
+    public abstract String probeContentType(Path path)
+        throws IOException;
+}

src/java.base/share/classes/java/nio/file/spi/package-info.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2007, 2009, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+/**
+ * Service-provider classes for the {@link java.nio.file} package.
+ *
+ * <p> Only developers who are defining new file system providers or file type
+ * detectors should need to make direct use of this package.  </p>
+ *
+ * <p> Unless otherwise noted, passing a {@code null} argument to a constructor
+ * or method in any class or interface in this package will cause a {@link
+ * java.lang.NullPointerException NullPointerException} to be thrown.
+ *
+ * @since 1.7
+ */
+
+package java.nio.file.spi;