src/jdk.packager/share/classes/jdk/packager/internal/Module.java
author herrick
Mon, 01 Oct 2018 09:04:49 -0400 (2018-10-01)
branchJDK-8200758-branch
changeset 56933 9f59eeb3cc0f
parent 56869 41e17fe9fbeb
permissions -rw-r--r--
8211182: Remove jdk.packager.services.UserJvmOptionsService Reviewed-by: almatvee
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/*
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 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package jdk.packager.internal;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipInputStream;
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public final class Module {
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    private final String filename;
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    private final ModuleType moduleType;
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    public enum JarType {All, UnnamedJar, ModularJar}
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    public enum ModuleType {
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            Unknown, UnnamedJar, ModularJar, Jmod, ExplodedModule}
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    public Module(File AFile) {
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        super();
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        filename = AFile.getPath();
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        moduleType = getModuleType(AFile);
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    }
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    public String getModuleName() {
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        File file = new File(getFileName());
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        // do not try to remove extension for directories
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        return moduleType == ModuleType.ExplodedModule ?
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                file.getName() : getFileWithoutExtension(file.getName());
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    }
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    public String getFileName() {
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        return filename;
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    }
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    public ModuleType getModuleType() {
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        return moduleType;
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    }
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    private static ModuleType getModuleType(File AFile) {
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        ModuleType result = ModuleType.Unknown;
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        String filename = AFile.getAbsolutePath();
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        if (AFile.isFile()) {
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            if (filename.endsWith(".jmod")) {
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                result = ModuleType.Jmod;
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            }
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            else if (filename.endsWith(".jar")) {
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                JarType status = isModularJar(filename);
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                if (status == JarType.ModularJar) {
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                    result = ModuleType.ModularJar;
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                }
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                else if (status == JarType.UnnamedJar) {
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                    result = ModuleType.UnnamedJar;
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                }
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            }
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        }
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        else if (AFile.isDirectory()) {
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            File moduleInfo = new File(
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                    filename + File.separator + "module-info.class");
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            if (moduleInfo.exists()) {
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                result = ModuleType.ExplodedModule;
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            }
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        }
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        return result;
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    }
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    private static JarType isModularJar(String FileName) {
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        JarType result = JarType.All;
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        try {
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            ZipInputStream zip =
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                    new ZipInputStream(new FileInputStream(FileName));
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            result = JarType.UnnamedJar;
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            try {
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                for (ZipEntry entry = zip.getNextEntry(); entry != null;
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                        entry = zip.getNextEntry()) {
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                    if (entry.getName().matches("module-info.class")) {
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                        result = JarType.ModularJar;
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                        break;
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                    }
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                }
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                zip.close();
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            } catch (IOException ex) {
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            }
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        } catch (FileNotFoundException e) {
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        }
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        return result;
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    }
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    private static String getFileWithoutExtension(String FileName) {
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        return FileName.replaceFirst("[.][^.]+$", "");
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    }
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}