1 /*

     2  * Copyright (c) 1997, 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 com.sun.codemodel.internal.writer;

    27 

    28 import java.io.File;

    29 import java.io.FileOutputStream;

    30 import java.io.IOException;

    31 import java.io.OutputStream;

    32 import java.util.HashSet;

    33 import java.util.Set;

    34 

    35 import com.sun.codemodel.internal.CodeWriter;

    36 import com.sun.codemodel.internal.JPackage;

    37 

    38 /**

    39  * Writes all the source files under the specified file folder.

    40  *

    41  * @author

    42  *      Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

    43  */

    44 public class FileCodeWriter extends CodeWriter {

    45 

    46     /** The target directory to put source code. */

    47     private final File target;

    48 

    49     /** specify whether or not to mark the generated files read-only */

    50     private final boolean readOnly;

    51 

    52     /** Files that shall be marked as read only. */

    53     private final Set<File> readonlyFiles = new HashSet<File>();

    54 

    55     public FileCodeWriter( File target ) throws IOException {

    56         this(target,false);

    57     }

    58 

    59     public FileCodeWriter( File target, String encoding ) throws IOException {

    60         this(target,false, encoding);

    61     }

    62 

    63     public FileCodeWriter( File target, boolean readOnly ) throws IOException {

    64         this(target, readOnly, null);

    65     }

    66 

    67     public FileCodeWriter( File target, boolean readOnly, String encoding ) throws IOException {

    68         this.target = target;

    69         this.readOnly = readOnly;

    70         this.encoding = encoding;

    71         if(!target.exists() || !target.isDirectory())

    72             throw new IOException(target + ": non-existent directory");

    73     }

    74 

    75     public OutputStream openBinary(JPackage pkg, String fileName) throws IOException {

    76         return new FileOutputStream(getFile(pkg,fileName));

    77     }

    78 

    79     protected File getFile(JPackage pkg, String fileName ) throws IOException {

    80         File dir;

    81         if(pkg.isUnnamed())

    82             dir = target;

    83         else

    84             dir = new File(target, toDirName(pkg));

    85 

    86         if(!dir.exists())   dir.mkdirs();

    87 

    88         File fn = new File(dir,fileName);

    89 

    90         if (fn.exists()) {

    91             if (!fn.delete())

    92                 throw new IOException(fn + ": Can't delete previous version");

    93         }

    94 

    95 

    96         if(readOnly)        readonlyFiles.add(fn);

    97         return fn;

    98     }

    99 

   100     public void close() throws IOException {

   101         // mark files as read-onnly if necessary

   102         for (File f : readonlyFiles)

   103             f.setReadOnly();

   104     }

   105 

   106     /** Converts a package name to the directory name. */

   107     private static String toDirName( JPackage pkg ) {

   108         return pkg.name().replace('.',File.separatorChar);

   109     }

   110 

   111 }