java - 多次使用 agrep.exe 的 Java ProcessBuilder

Question

我的Java程序需要启动agrep.exe，其参数包含大矩阵中所有元素对的参数，并获取两个字符串的匹配错误数。我写了一段代码，但是运行速度很慢。我可以加快这部分代码的速度吗？或者，也许你可以建议我一些 agrep 函数的 java 实现？

public static double getSignatureDistance(String one, String two) throws IOException, InterruptedException {
    String strReprOne = one.replace(".*","").replace("\\.",".");
    String strReprTwo = two.replace(".*","").replace("\\.",".");

    PrintWriter writer = new PrintWriter("tmp.txt", "UTF-8");
    writer.print(strReprTwo);
    writer.close();

    List<String> cmd = new ArrayList<>();
    cmd.add("agrep.exe");
    cmd.add("-B");
    cmd.add(one);
    cmd.add("tmp.txt");

    ProcessBuilder pb = new ProcessBuilder(cmd);
    pb.redirectErrorStream(true);
    Process proc = pb.start();

    BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));

    StringBuilder lineBuilder = new StringBuilder();
    String line = "";
    char[] buf = new char[2];
    while (in.read(buf) == 2) {
        lineBuilder.append(buf);
    }
    line = lineBuilder.toString();

    Pattern p = Pattern.compile("(\\d+)\\serror");
    Matcher m = p.matcher(line);
    double agrep = 0;
    if(m.find()) {
        agrep = Double.valueOf(m.group(1));
    }

    in.close();
    proc.destroy();

    double length = strReprOne.length();
    return agrep/length;
}

我可以使用 FREJ 库来实现此目的吗？比如对字符串进行匹配，得到匹配结果，然后乘以匹配区域的长度？

Answer 1

没有人知道，所以我使用了 FREJ 库。