Example usage for org.apache.commons.exec Executor setStreamHandler

Introduction

In this page you can find the example usage for org.apache.commons.exec Executor setStreamHandler.

Prototype

void setStreamHandler(ExecuteStreamHandler streamHandler);

Source Link

Document

Set a custom the StreamHandler used for providing input and retrieving the output.

Usage

From source file:org.xdi.util.process.ProcessHelper.java

/**
 * //from  w  w w.  j  a  v  a2s.  c  om
 * @param printJobTimeout
 *            the printJobTimeout (ms) before the watchdog terminates the
 *            print process
 * @param printInBackground
 *            printing done in the background or blocking
 * @param streamHandler
 * @return a print result handler (implementing a future)
 * @throws IOException
 *             the test failed
 */
public static PrintResultHandler executeProgram(CommandLine commandLine, String workingDirectory,
        long printJobTimeout, boolean printInBackground, int successExitValue,
        ExecuteStreamHandler streamHandler) throws IOException {
    ExecuteWatchdog watchdog = null;
    PrintResultHandler resultHandler;

    // Create the executor and consider the successExitValue as success
    Executor executor = new DefaultExecutor();
    executor.setExitValue(successExitValue);

    if (StringHelper.isNotEmpty(workingDirectory)) {
        executor.setWorkingDirectory(new File(workingDirectory));
    }

    // Redirect streams if needed
    if (streamHandler != null) {
        executor.setStreamHandler(streamHandler);
    }

    // Create a watchdog if requested
    if (printJobTimeout > 0) {
        watchdog = new ExecuteWatchdog(printJobTimeout);
        executor.setWatchdog(watchdog);
    }

    // Pass a "ExecuteResultHandler" when doing background printing
    if (printInBackground) {
        log.debug(String.format("Executing non-blocking process %s", commandLine.toString()));
        resultHandler = new PrintResultHandler(watchdog);
        executor.execute(commandLine, resultHandler);
    } else {
        log.debug(String.format("Executing blocking process %s", commandLine.toString()));
        successExitValue = executor.execute(commandLine);
        resultHandler = new PrintResultHandler(successExitValue);
    }

    return resultHandler;
}

From source file:org.zanata.sync.jobs.utils.ProcessUtils.java

public static List<String> runNativeCommand(Path workingDir, long timeoutInMilli, String... commands) {
    Preconditions.checkArgument(commands != null && commands.length > 0, "You must provide commands to run");

    CommandLine commandLine = CommandLine.parse(commands[0]);
    ImmutableList<String> args = ImmutableList.copyOf(commands).subList(1, commands.length);
    for (String arg : args) {
        commandLine.addArgument(arg);//from   w  w w.ja  va 2  s  .  c  om
    }

    Executor executor = new DefaultExecutor();

    ImmutableList.Builder<String> output = ImmutableList.builder();
    executor.setStreamHandler(new PumpStreamHandler(new LogOutputStream() {
        @Override
        protected void processLine(String line, int logLevel) {
            log.info(line);
            output.add(line);
        }
    }));
    ExecuteWatchdog watchDog = new ExecuteWatchdog(timeoutInMilli);
    executor.setWatchdog(watchDog);
    executor.setWorkingDirectory(workingDir.toFile());
    executor.setProcessDestroyer(PROCESS_DESTROYER);

    try {
        int exitCode = executor.execute(commandLine);
        if (Execute.isFailure(exitCode) && watchDog.killedProcess()) {
            // it was killed on purpose by the watchdog
            log.error("process {} taking too long to run and killed by watchdog", commandLine);
        }
    } catch (IOException e) {
        log.error("error running:{}", commandLine);
        throw Throwables.propagate(e);
    }

    return output.build();
}

From source file:processing.app.macosx.Platform.java

private void discoverRealOsArch() throws IOException {
    CommandLine uname = CommandLine.parse("uname -m");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    Executor executor = new DefaultExecutor();
    executor.setStreamHandler(new PumpStreamHandler(baos, null));
    executor.execute(uname);// www  .ja v a2 s. co  m
    osArch = StringUtils.trim(new String(baos.toByteArray()));
}