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如何自动将所有 javadoc package.html 文件转换为 package-info.java 文件？

发布于 2024-10-14 14:58:59 字数 394 浏览 5 评论 0原文

我们在项目中使用了很多旧的 package.html 文件，我们希望将它们转换为 package-info.java 文件。手动执行此操作不是一个选项（文件太多）。有没有一个好的方法可以实现自动化？

我们想要转换它们有几个原因：

来自 javadoc 规范：此文件是 JDK 5.0 中的新文件，并且优先于 package.html。
不要在同一代码库中混合两种类型的文件
为了避免 Intellij/Eclipse 构建，请将这些 *.html 文件放在我们的类目录中（也可能放在发布的二进制 jar 中），这样它们的行为就像我们其他普通的 html 资源一样。

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丧 2024-10-21 14:58:59

如果您没有运行 Windows，则可能需要更改目录分隔符。另外，转换有点麻烦，但应该可以。出于好奇，您有多少个软件包无法使用手册？

public class Converter {

    public static void main(String[] args) {
        File rootDir = new File(".");
        renamePackageToPackageInfo(rootDir);
    }

    private static void renamePackageToPackageInfo(File dir) {
        File[] files = dir.listFiles(new FilenameFilter() {
            @Override
            public boolean accept(File dir, String name) {
                return "package.html".equals(name);
            }
        });
        for (File file : files) {
            convertFile(file);
        }
        // now recursively rename all the child directories.
        File[] dirs = dir.listFiles(new FileFilter() {
            @Override
            public boolean accept(File pathname) {
                return pathname.isDirectory();
            }
        });
        for (File subdir : dirs) {
            renamePackageToPackageInfo(subdir);
        }
    }

    private static void convertFile(File html) {
        // determine the FQN package name
        String fqpn = getPackageName(html);

        // check if package-info.java already exists
        File packageInfo = new File(html.getParent(), "package-info.java");
        if (packageInfo.exists()) {
            System.out.println("package-info.java already exists for package: "+fqpn);
            return; 
        }

        // create the i/o streams, and start pumping the data
        try {
            PrintWriter out = new PrintWriter(packageInfo);
            BufferedReader in = new BufferedReader(new FileReader(html));
            out.println("/**");

            // skip over the headers
            while (true) {
                String line = in.readLine();
                if (line.equalsIgnoreCase("<BODY>"))
                    break;
            }
            // now pump the file into the package-info.java file
            while (true) {
                String line = in.readLine();
                if (line.equalsIgnoreCase("</BODY>"))
                    break;
                out.println(" * " + line);
            }

            out.println("*/");
            out.println("package "+fqpn+";");
            out.close();
            in.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        // queue the package.html file for deletion
        //html.deleteOnExit();
    }

    private static String getPackageName(File file) {
        StringBuilder path = new StringBuilder(file.getParent());
        // trim the first two characters (./ or .\)
        path.delete(0, 2);
        // then convert all separators into . (HACK: should use directory separator property)
        return path.toString().replaceAll("\\\\", ".");
    }

}

You may need to change the directory separator if you're not running windows. Also, the conversion is a bit of a hack, but it should work. Out of curiosity, how many packages do you have that manual isn't an option?

public class Converter {

    public static void main(String[] args) {
        File rootDir = new File(".");
        renamePackageToPackageInfo(rootDir);
    }

    private static void renamePackageToPackageInfo(File dir) {
        File[] files = dir.listFiles(new FilenameFilter() {
            @Override
            public boolean accept(File dir, String name) {
                return "package.html".equals(name);
            }
        });
        for (File file : files) {
            convertFile(file);
        }
        // now recursively rename all the child directories.
        File[] dirs = dir.listFiles(new FileFilter() {
            @Override
            public boolean accept(File pathname) {
                return pathname.isDirectory();
            }
        });
        for (File subdir : dirs) {
            renamePackageToPackageInfo(subdir);
        }
    }

    private static void convertFile(File html) {
        // determine the FQN package name
        String fqpn = getPackageName(html);

        // check if package-info.java already exists
        File packageInfo = new File(html.getParent(), "package-info.java");
        if (packageInfo.exists()) {
            System.out.println("package-info.java already exists for package: "+fqpn);
            return; 
        }

        // create the i/o streams, and start pumping the data
        try {
            PrintWriter out = new PrintWriter(packageInfo);
            BufferedReader in = new BufferedReader(new FileReader(html));
            out.println("/**");

            // skip over the headers
            while (true) {
                String line = in.readLine();
                if (line.equalsIgnoreCase("<BODY>"))
                    break;
            }
            // now pump the file into the package-info.java file
            while (true) {
                String line = in.readLine();
                if (line.equalsIgnoreCase("</BODY>"))
                    break;
                out.println(" * " + line);
            }

            out.println("*/");
            out.println("package "+fqpn+";");
            out.close();
            in.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        // queue the package.html file for deletion
        //html.deleteOnExit();
    }

    private static String getPackageName(File file) {
        StringBuilder path = new StringBuilder(file.getParent());
        // trim the first two characters (./ or .\)
        path.delete(0, 2);
        // then convert all separators into . (HACK: should use directory separator property)
        return path.toString().replaceAll("\\\\", ".");
    }

}

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