com.zcj.util.convertor.PdfToSwf Maven / Gradle / Ivy

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package com.zcj.util.convertor;

import com.zcj.util.UtilString;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.*;

/**
 * 依赖第三方软件：SWFTools
 *
 * @author [email protected]
 * @since 2016年1月13日
 */
public class PdfToSwf {

    private static final Logger logger = LoggerFactory.getLogger(PdfToSwf.class);

    private static String getFilePath(String file) {
        String result = file.substring(0, file.lastIndexOf('/'));
        if ("/".equals(file.substring(2, 3))) {
            result = file.substring(0, file.lastIndexOf('/'));
        } else if ("\\".equals(file.substring(2, 3))) {
            result = file.substring(0, file.lastIndexOf("\\"));
        }
        return result;
    }

    private static void newFolder(String folderPath) {
        try {
            File myFolderPath = new File(folderPath);
            if (!myFolderPath.exists()) {
                myFolderPath.mkdir();
            }
        } catch (Exception e) {
            throw new RuntimeException("转swf失败：新建目录" + folderPath + "失败");
        }
    }

    /**
     * pdf转swf
     *
     * @param swfToolsPath swftools软件的安装目录，如：C:/Program Files (x86)/SWFTools
     * @param languagedir  languagedir的路径，可以为NULL，如：D:\\xpdf\\xpdf-chinese-simplified
     * @param sourcePath   源文件的目录，如：D:/4444.pdf
     * @param destPath     目标文件的目录，如：D:/4444.swf
     * @return boolean
     */
    public static boolean pdf2swf(String swfToolsPath, String languagedir, String sourcePath, String destPath) {
        try {
            // 如果目标文件的路径是新的，则新建路径
            newFolder(getFilePath(destPath));

            // 源文件不存在
            File source = new File(sourcePath);
            if (!source.exists()) {
                throw new RuntimeException("转swf失败：源文件" + sourcePath + "不存在");
            }

            // 调用pdf2swf命令进行转换
            String command = swfToolsPath + "/pdf2swf.exe  -t \"" + sourcePath + "\" -o  \"" + destPath
                    + "\" -s flashversion=9 ";

            if (UtilString.isNotBlank(languagedir)) {
                File file = new File(languagedir);
                if (file.exists()) {
                    command = command + " -s languagedir=" + languagedir;
                }
            }

            logger.debug("命令操作:[{}]开始转换...", command);

            // 调用外部程序
            Process process = Runtime.getRuntime().exec(command);
            final InputStream is1 = process.getInputStream();
            new Thread(() -> {
                BufferedReader br = new BufferedReader(new InputStreamReader(is1));
                try {
                    String line = null;
                    while ((line = br.readLine()) != null) {

                    }
                } catch (IOException e) {
                    logger.error(e.getMessage(), e);
                }
            }).start(); // 启动单独的线程来清空process.getInputStream()的缓冲区
            InputStream is2 = process.getErrorStream();
            BufferedReader br2 = new BufferedReader(new InputStreamReader(is2));
            // 保存输出结果流
            StringBuilder buf = new StringBuilder();
            String line = null;
            while ((line = br2.readLine()) != null) {
                // 循环等待ffmpeg进程结束
                buf.append(line);
            }
            process.waitFor();
            logger.info("转换结束..");
            return process.exitValue() == 0;
        } catch (IOException e) {
            logger.error(e.getMessage(), e);
        } catch (InterruptedException e) {
            logger.error(e.getMessage(), e);
            Thread.currentThread().interrupt();
        }
        return false;
    }

    /**
     * pdf转swf
     *
     * @param swfToolsPath swftools软件的安装目录，如：C:/Program Files (x86)/SWFTools
     * @param sourcePath   源文件的目录，如：D:/4444.pdf
     * @param destPath     目标文件的目录，如：D:/4444.swf
     * @return boolean
     */
    public static boolean pdf2swf(String swfToolsPath, String sourcePath, String destPath) {
        return pdf2swf(swfToolsPath, null, sourcePath, destPath);
    }

}