1 /*

     2  * Copyright (c) 2016, 2019, 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 jdk.incubator.jpackage.internal;

    27 

    28 import java.io.File;

    29 import java.io.FileInputStream;

    30 import java.io.FileNotFoundException;

    31 import java.io.IOException;

    32 import java.util.ArrayList;

    33 import java.util.List;

    34 import java.util.zip.ZipEntry;

    35 import java.util.zip.ZipInputStream;

    36 

    37 final class ModFile {

    38     private final String filename;

    39     private final ModType moduleType;

    40 

    41     enum JarType {All, UnnamedJar, ModularJar}

    42     enum ModType {

    43             Unknown, UnnamedJar, ModularJar, Jmod, ExplodedModule}

    44 

    45     ModFile(File aFile) {

    46         super();

    47         filename = aFile.getPath();

    48         moduleType = getModType(aFile);

    49     }

    50 

    51     String getModName() {

    52         File file = new File(getFileName());

    53         // do not try to remove extension for directories

    54         return moduleType == ModType.ExplodedModule ?

    55                 file.getName() : getFileWithoutExtension(file.getName());

    56     }

    57 

    58     String getFileName() {

    59         return filename;

    60     }

    61 

    62     ModType getModType() {

    63         return moduleType;

    64     }

    65 

    66     private static ModType getModType(File aFile) {

    67         ModType result = ModType.Unknown;

    68         String filename = aFile.getAbsolutePath();

    69 

    70         if (aFile.isFile()) {

    71             if (filename.endsWith(".jmod")) {

    72                 result = ModType.Jmod;

    73             }

    74             else if (filename.endsWith(".jar")) {

    75                 JarType status = isModularJar(filename);

    76 

    77                 if (status == JarType.ModularJar) {

    78                     result = ModType.ModularJar;

    79                 }

    80                 else if (status == JarType.UnnamedJar) {

    81                     result = ModType.UnnamedJar;

    82                 }

    83             }

    84         }

    85         else if (aFile.isDirectory()) {

    86             File moduleInfo = new File(

    87                     filename + File.separator + "module-info.class");

    88 

    89             if (moduleInfo.exists()) {

    90                 result = ModType.ExplodedModule;

    91             }

    92         }

    93 

    94         return result;

    95     }

    96 

    97     private static JarType isModularJar(String FileName) {

    98         JarType result = JarType.All;

    99 

   100         try (ZipInputStream zip =

   101                     new ZipInputStream(new FileInputStream(FileName))) {

   102             result = JarType.UnnamedJar;

   103 

   104             for (ZipEntry entry = zip.getNextEntry(); entry != null;

   105                     entry = zip.getNextEntry()) {

   106                 if (entry.getName().matches("module-info.class")) {

   107                     result = JarType.ModularJar;

   108                     break;

   109                 }

   110             }

   111         } catch (IOException ex) {

   112         }

   113 

   114         return result;

   115     }

   116 

   117     private static String getFileWithoutExtension(String FileName) {

   118         return FileName.replaceFirst("[.][^.]+$", "");

   119     }

   120 }