1 /*

     2  * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package javax.tools;

    27 

    28 import java.io.IOException;

    29 import java.util.Iterator;

    30 import java.util.Set;

    31 import javax.tools.JavaFileObject.Kind;

    32 

    33 /**

    34  * Forwards calls to a given file manager.  Subclasses of this class

    35  * might override some of these methods and might also provide

    36  * additional fields and methods.

    37  *

    38  * @param <M> the kind of file manager forwarded to by this object

    39  * @author Peter von der Ahé

    40  * @since 1.6

    41  */

    42 public class ForwardingJavaFileManager<M extends JavaFileManager> implements JavaFileManager {

    43 

    44     /**

    45      * The file manager which all methods are delegated to.

    46      */

    47     protected final M fileManager;

    48 

    49     /**

    50      * Creates a new instance of ForwardingJavaFileManager.

    51      * @param fileManager delegate to this file manager

    52      */

    53     protected ForwardingJavaFileManager(M fileManager) {

    54         fileManager.getClass(); // null check

    55         this.fileManager = fileManager;

    56     }

    57 

    58     /**

    59      * @throws SecurityException {@inheritDoc}

    60      * @throws IllegalStateException {@inheritDoc}

    61      */

    62     public ClassLoader getClassLoader(Location location) {

    63         return fileManager.getClassLoader(location);

    64     }

    65 

    66     /**

    67      * @throws IOException {@inheritDoc}

    68      * @throws IllegalStateException {@inheritDoc}

    69      */

    70     public Iterable<JavaFileObject> list(Location location,

    71                                          String packageName,

    72                                          Set<Kind> kinds,

    73                                          boolean recurse)

    74         throws IOException

    75     {

    76         return fileManager.list(location, packageName, kinds, recurse);

    77     }

    78 

    79     /**

    80      * @throws IllegalStateException {@inheritDoc}

    81      */

    82     public String inferBinaryName(Location location, JavaFileObject file) {

    83         return fileManager.inferBinaryName(location, file);

    84     }

    85 

    86     /**

    87      * @throws IllegalArgumentException {@inheritDoc}

    88      */

    89     public boolean isSameFile(FileObject a, FileObject b) {

    90         return fileManager.isSameFile(a, b);

    91     }

    92 

    93     /**

    94      * @throws IllegalArgumentException {@inheritDoc}

    95      * @throws IllegalStateException {@inheritDoc}

    96      */

    97     public boolean handleOption(String current, Iterator<String> remaining) {

    98         return fileManager.handleOption(current, remaining);

    99     }

   100 

   101     public boolean hasLocation(Location location) {

   102         return fileManager.hasLocation(location);

   103     }

   104 

   105     public int isSupportedOption(String option) {

   106         return fileManager.isSupportedOption(option);

   107     }

   108 

   109     /**

   110      * @throws IllegalArgumentException {@inheritDoc}

   111      * @throws IllegalStateException {@inheritDoc}

   112      */

   113     public JavaFileObject getJavaFileForInput(Location location,

   114                                               String className,

   115                                               Kind kind)

   116         throws IOException

   117     {

   118         return fileManager.getJavaFileForInput(location, className, kind);

   119     }

   120 

   121     /**

   122      * @throws IllegalArgumentException {@inheritDoc}

   123      * @throws IllegalStateException {@inheritDoc}

   124      */

   125     public JavaFileObject getJavaFileForOutput(Location location,

   126                                                String className,

   127                                                Kind kind,

   128                                                FileObject sibling)

   129         throws IOException

   130     {

   131         return fileManager.getJavaFileForOutput(location, className, kind, sibling);

   132     }

   133 

   134     /**

   135      * @throws IllegalArgumentException {@inheritDoc}

   136      * @throws IllegalStateException {@inheritDoc}

   137      */

   138     public FileObject getFileForInput(Location location,

   139                                       String packageName,

   140                                       String relativeName)

   141         throws IOException

   142     {

   143         return fileManager.getFileForInput(location, packageName, relativeName);

   144     }

   145 

   146     /**

   147      * @throws IllegalArgumentException {@inheritDoc}

   148      * @throws IllegalStateException {@inheritDoc}

   149      */

   150     public FileObject getFileForOutput(Location location,

   151                                        String packageName,

   152                                        String relativeName,

   153                                        FileObject sibling)

   154         throws IOException

   155     {

   156         return fileManager.getFileForOutput(location, packageName, relativeName, sibling);

   157     }

   158 

   159     public void flush() throws IOException {

   160         fileManager.flush();

   161     }

   162 

   163     public void close() throws IOException {

   164         fileManager.close();

   165     }

   166 }