Question

当我使用Java Bloomber V3 API时，它通常可以正常工作。但是，有时，特别是在重新启动后，bbcomm.exe没有在后台运行。我可以通过运行blp.exe手动启动它，但我想知道是否有办法通过API执行此操作？

我还在等帮助帮助...

Answer 1

在与服务台交谈之后，事实证明在64位Windows上，在64位JVM下运行bbcomm并不会自动启动。这不会发生在32位Java下 - 32位bbcomm自动运行。

所以我的解决方案要么是等待Bloomberg解决问题（现在我理解了），要么检查这个具体案例。

检查具体案例：

如果在64位窗口（系统属性os.arch）
如果在64位JVM（系统属性java.vm.name）下运行
然后尝试开始会话
如果失败，则假定bbcomm.exe未运行。尝试使用bbcomm.exe

Runtime.exec()

我还没有测试过上面的内容。它可能与彭博与64位虚拟机完全相同。

Answer 2

在帮助帮助上花了一些时间后，似乎bbcomm在您使用Excel API或运行API演示时就会启动。但是从Java API调用时它不会自动启动。启动它的可能方法是：

在注册表中添加一个条目以在启动时自动启动bbcomm：在HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run中添加一个名为bbcomm的字符串值，其值为C:\blp\API\bbcomm.exe - 但这会打开一个仍然可见的命令窗口，所以不是一个真正的选择（如果你关闭那个窗口它会终止bbcomm进程）
创建批处理文件START /MIN C:\blp\API\bbcomm.exe并将注册表中的条目替换为（未测试）以静默调用bbcomm
按照建议从您的java代码手动启动bbcomm。作为参考，我在下面发布我正在使用的代码。

private final static Logger logger = LoggerFactory.getLogger(BloombergUtils.class);
private final static String BBCOMM_PROCESS  = "bbcomm.exe";
private final static String BBCOMM_FOLDER  = "C:/blp/API";

/**
 * 
 * @return true if the bbcomm process is running
 */
public static boolean isBloombergProcessRunning() {
    return ShellUtils.isProcessRunning(BBCOMM_PROCESS);
}

/**
 * Starts the bbcomm process, which is required to connect to the Bloomberg data feed
 * @return true if bbcomm was started successfully, false otherwise
 */
public static boolean startBloombergProcessIfNecessary() {
    if (isBloombergProcessRunning()) {
        logger.info(BBCOMM_PROCESS + " is started");
        return true;
    }

    Callable<Boolean> startBloombergProcess = getStartingCallable();
    return getResultWithTimeout(startBloombergProcess, 1, TimeUnit.SECONDS);
}

private static Callable<Boolean> getStartingCallable() {
    return new Callable<Boolean>() {
        @Override
        public Boolean call() throws Exception {
            logger.info("Starting " + BBCOMM_PROCESS + " manually");
            ProcessBuilder pb = new ProcessBuilder(BBCOMM_PROCESS);
            pb.directory(new File(BBCOMM_FOLDER));
            pb.redirectErrorStream(true);
            Process p = pb.start();
            BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                if (line.toLowerCase().contains("started")) {
                    logger.info(BBCOMM_PROCESS + " is started");
                    return true;
                }
            }
            return false;
        }
    };

}

private static boolean getResultWithTimeout(Callable<Boolean> startBloombergProcess, int timeout, TimeUnit timeUnit) {
    ExecutorService executor = Executors.newSingleThreadExecutor(new ThreadFactory() {

        @Override
        public Thread newThread(Runnable r) {
            Thread t = new Thread(r, "Bloomberg - bbcomm starter thread");
            t.setDaemon(true);
            return t;
        }
    });
    Future<Boolean> future = executor.submit(startBloombergProcess);

    try {
        return future.get(timeout, timeUnit);
    } catch (InterruptedException ignore) {
        Thread.currentThread().interrupt();
        return false;
    } catch (ExecutionException | TimeoutException e) {
        logger.error("Could not start bbcomm", e);
        return false;
    } finally {
        executor.shutdownNow();
        try {
            if (!executor.awaitTermination(100, TimeUnit.MILLISECONDS)) {
                logger.warn("bbcomm starter thread still running");
            }
        } catch (InterruptedException ex) {
            Thread.currentThread().interrupt();
        }
    }
}

<强> ShellUtils.java

public class ShellUtils {

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

    /**
     * @return a list of processes currently running
     * @throws RuntimeException if the request sent to the OS to get the list of running processes fails
     */
    public static List<String> getRunningProcesses() {
        List<String> processes = new ArrayList<>();

        try {
            Process p = Runtime.getRuntime().exec(System.getenv("windir") + "\\system32\\" + "tasklist.exe");
            BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line;
            int i = 0;
            while ((line = input.readLine()) != null) {
                if (!line.isEmpty()) {
                    String process = line.split(" ")[0];
                    if (process.contains("exe")) {
                        processes.add(process);
                    }
                }
            }
        } catch (IOException e) {
            throw new RuntimeException("Could not retrieve the list of running processes from the OS");
        }

        return processes;
    }

    /**
     * 
     * @param processName the name of the process, for example "explorer.exe"
     * @return true if the process is currently running
     * @throws RuntimeException if the request sent to the OS to get the list of running processes fails
     */
    public static boolean isProcessRunning(String processName) {
        List<String> processes = getRunningProcesses();
        return processes.contains(processName);
    }
}

Answer 3

我们在使用.net API的Windows 7 64位计算机上遇到了同样的问题。 bbcomm.exe无法自动启动，唯一的解决方法是启动“Bloomberg API DEMO”应用程序......

Answer 4

我知道这是一篇过时的文章，但我认为如果有人需要帮助从代码隐藏控制台窗口检查/启动 bbcomm.exe 进程，我会添加我的解决方案作为参考。

此代码段是用C＃编写的，但我希望您可以轻松地将其翻译为Java。

void Main()
{
    var processes = Process.GetProcessesByName("bbcomm");
    if (processes.Any())
    {
        Console.WriteLine(processes.First().ProcessName + " already running");
        return;
    }

    var exePath = @"C:\blp\DAPI\bbcomm.exe";
    var processStart = new ProcessStartInfo(exePath);
    processStart.UseShellExecute = false;
    processStart.CreateNoWindow = true;
    processStart.RedirectStandardError = true;
    processStart.RedirectStandardOutput = true;
    processStart.RedirectStandardInput = true;  
    var process = Process.Start(processStart);
    Console.WriteLine(process.ProcessName + " started");
}

Answer 5

bbcomm.exe由V3 API自动启动。

在Java v3 Bloomberg API中启动bbcomm

5 个答案: