1 /*

     2  * Copyright (c) 2016, 2018, 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.packager.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 

    38 public final class Module {

    39     private final String filename;

    40     private final ModuleType moduleType;

    41 

    42     public enum JarType {All, UnnamedJar, ModularJar}

    43     public enum ModuleType {Unknown, UnnamedJar, ModularJar, Jmod, ExplodedModule}

    44 

    45     public Module(File AFile) {

    46         super();

    47         filename = AFile.getPath();

    48         moduleType = getModuleType(AFile);

    49     }

    50 

    51     public String getModuleName() {

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

    53         // do not try to remove extension for directories

    54         return moduleType == ModuleType.ExplodedModule ?

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

    56     }

    57 

    58     public String getFileName() {

    59         return filename;

    60     }

    61 

    62     public ModuleType getModuleType() {

    63         return moduleType;

    64     }

    65 

    66     private static ModuleType getModuleType(File AFile) {

    67         ModuleType result = ModuleType.Unknown;

    68         String filename = AFile.getAbsolutePath();

    69 

    70         if (AFile.isFile()) {

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

    72                 result = ModuleType.Jmod;

    73             }

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

    75                 JarType status = isModularJar(filename);

    76 

    77                 if (status == JarType.ModularJar) {

    78                     result = ModuleType.ModularJar;

    79                 }

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

    81                     result = ModuleType.UnnamedJar;

    82                 }

    83             }

    84         }

    85         else if (AFile.isDirectory()) {

    86             File moduleInfo = new File(filename + File.separator + "module-info.class");

    87 

    88             if (moduleInfo.exists()) {

    89                 result = ModuleType.ExplodedModule;

    90             }

    91         }

    92 

    93         return result;

    94     }

    95 

    96     private static JarType isModularJar(String FileName) {

    97         JarType result = JarType.All;

    98 

    99         try {

   100             ZipInputStream zip = new ZipInputStream(new FileInputStream(FileName));

   101             result = JarType.UnnamedJar;

   102 

   103             try {

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

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

   106                         result = JarType.ModularJar;

   107                         break;

   108                     }

   109                 }

   110 

   111                 zip.close();

   112             } catch (IOException ex) {

   113             }

   114         } catch (FileNotFoundException e) {

   115         }

   116 

   117         return result;

   118     }

   119 

   120     private static String getFileWithoutExtension(String FileName) {

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

   122     }

   123 }