Examples with PumpStreamHandler org.apache.commons.exec.PumpStreamHandler used on opensource projects

Example 16 with PumpStreamHandler

use of org.apache.commons.exec.PumpStreamHandler in project jstorm by alibaba.

the class JStormUtils method launchProcess.

/**
     * If it is backend, please set resultHandler, such as DefaultExecuteResultHandler
     * If it is frontend, ByteArrayOutputStream.toString will return the calling result
     * <p/>
     * This function will ignore whether the command is successfully executed or not
     *
     * @param command       command to be executed
     * @param environment   env vars
     * @param workDir       working directory
     * @param resultHandler exec result handler
     * @return output stream
     * @throws IOException
     */
@Deprecated
public static ByteArrayOutputStream launchProcess(String command, final Map environment, final String workDir, ExecuteResultHandler resultHandler) throws IOException {
    String[] cmdlist = command.split(" ");
    CommandLine cmd = new CommandLine(cmdlist[0]);
    for (String cmdItem : cmdlist) {
        if (!StringUtils.isBlank(cmdItem)) {
            cmd.addArgument(cmdItem);
        }
    }
    DefaultExecutor executor = new DefaultExecutor();
    executor.setExitValue(0);
    if (!StringUtils.isBlank(workDir)) {
        executor.setWorkingDirectory(new File(workDir));
    }
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    PumpStreamHandler streamHandler = new PumpStreamHandler(out, out);
    executor.setStreamHandler(streamHandler);
    try {
        if (resultHandler == null) {
            executor.execute(cmd, environment);
        } else {
            executor.execute(cmd, environment, resultHandler);
        }
    } catch (ExecuteException ignored) {
    }
    return out;
}

Example 17 with PumpStreamHandler

use of org.apache.commons.exec.PumpStreamHandler in project openhab1-addons by openhab.

the class ExecBinding method executeCommandAndWaitResponse.

/**
     * <p>
     * Executes <code>commandLine</code>. Sometimes (especially observed on
     * MacOS) the commandLine isn't executed properly. In that cases another
     * exec-method is to be used. To accomplish this please use the special
     * delimiter '<code>@@</code>'. If <code>commandLine</code> contains this
     * delimiter it is split into a String[] array and the special exec-method
     * is used.
     * </p>
     * <p>
     * A possible {@link IOException} gets logged but no further processing is
     * done.
     * </p>
     *
     * @param commandLine the command line to execute
     * @return response data from executed command line
     */
private String executeCommandAndWaitResponse(String commandLine) {
    String retval = null;
    CommandLine cmdLine = null;
    if (commandLine.contains(CMD_LINE_DELIMITER)) {
        String[] cmdArray = commandLine.split(CMD_LINE_DELIMITER);
        cmdLine = new CommandLine(cmdArray[0]);
        for (int i = 1; i < cmdArray.length; i++) {
            cmdLine.addArgument(cmdArray[i], false);
        }
    } else {
        cmdLine = CommandLine.parse(commandLine);
    }
    DefaultExecuteResultHandler resultHandler = new DefaultExecuteResultHandler();
    ExecuteWatchdog watchdog = new ExecuteWatchdog(timeout);
    Executor executor = new DefaultExecutor();
    ByteArrayOutputStream stdout = new ByteArrayOutputStream();
    PumpStreamHandler streamHandler = new PumpStreamHandler(stdout);
    executor.setExitValue(1);
    executor.setStreamHandler(streamHandler);
    executor.setWatchdog(watchdog);
    try {
        executor.execute(cmdLine, resultHandler);
        logger.debug("executed commandLine '{}'", commandLine);
    } catch (ExecuteException e) {
        logger.error("couldn't execute commandLine '" + commandLine + "'", e);
    } catch (IOException e) {
        logger.error("couldn't execute commandLine '" + commandLine + "'", e);
    }
    // can safely request the exit code
    try {
        resultHandler.waitFor();
        int exitCode = resultHandler.getExitValue();
        retval = StringUtils.chomp(stdout.toString());
        logger.debug("exit code '{}', result '{}'", exitCode, retval);
    } catch (InterruptedException e) {
        logger.error("Timeout occured when executing commandLine '" + commandLine + "'", e);
    }
    return retval;
}

Example 18 with PumpStreamHandler

use of org.apache.commons.exec.PumpStreamHandler in project sakuli by ConSol.

the class CommandLineUtil method runCommand.

public static CommandLineResult runCommand(String command, boolean throwException) throws SakuliException {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    ByteArrayOutputStream error = new ByteArrayOutputStream();
    CommandLineResult result = new CommandLineResult();
    try {
        DefaultExecutor executor = new DefaultExecutor();
        executor.setStreamHandler(new PumpStreamHandler(outputStream, error));
        int exitCode = executor.execute(CommandLine.parse(command));
        result.setExitCode(exitCode);
        result.setOutput(error.toString() + outputStream.toString());
    } catch (Exception e) {
        if (throwException) {
            throw new SakuliException(e, String.format("Error during execution of command '%s': %s", command, error.toString()));
        }
        result.setExitCode(resolveExitCode(e.getMessage()));
        result.setOutput(e.getMessage());
    }
    return result;
}

Example 19 with PumpStreamHandler

use of org.apache.commons.exec.PumpStreamHandler in project opennms by OpenNMS.

the class SystemReportResourceLocator method slurpOutput.

@Override
public String slurpOutput(final String commandString, final boolean ignoreExitCode) {
    final CommandLine command = CommandLine.parse(commandString);
    LOG.debug("running: {}", commandString);
    final Map<String, String> environment = new HashMap<String, String>(System.getenv());
    environment.put("COLUMNS", "2000");
    DataInputStream input = null;
    PipedInputStream pis = null;
    OutputSuckingParser parser = null;
    String outputText = null;
    final DefaultExecutor executor = new DefaultExecutor();
    final PipedOutputStream output = new PipedOutputStream();
    final PumpStreamHandler streamHandler = new PumpStreamHandler(output, output);
    executor.setWatchdog(new ExecuteWatchdog(m_maxProcessWait));
    executor.setStreamHandler(streamHandler);
    if (ignoreExitCode) {
        executor.setExitValues(null);
    }
    try {
        LOG.trace("executing '{}'", commandString);
        pis = new PipedInputStream(output);
        input = new DataInputStream(pis);
        parser = new OutputSuckingParser(input);
        parser.start();
        final int exitValue = executor.execute(command, environment);
        IOUtils.closeQuietly(output);
        parser.join(m_maxProcessWait);
        if (!ignoreExitCode && exitValue != 0) {
            LOG.debug("error running '{}': exit value was {}", commandString, exitValue);
        } else {
            outputText = parser.getOutput();
        }
        LOG.trace("finished '{}'", commandString);
    } catch (final Exception e) {
        LOG.debug("Failed to run '{}'", commandString, e);
    } finally {
        IOUtils.closeQuietly(output);
        IOUtils.closeQuietly(input);
        IOUtils.closeQuietly(pis);
    }
    return outputText;
}

Example 20 with PumpStreamHandler

use of org.apache.commons.exec.PumpStreamHandler in project opennms by OpenNMS.

the class AbstractSystemReportPlugin method getOpenNMSProcesses.

protected Set<Integer> getOpenNMSProcesses() {
    LOG.trace("getOpenNMSProcesses()");
    final Set<Integer> processes = new HashSet<Integer>();
    final String jps = getResourceLocator().findBinary("jps");
    LOG.trace("jps = {}", jps);
    DataInputStream input = null;
    PsParser parser = null;
    PipedInputStream pis = null;
    PipedOutputStream output = new PipedOutputStream();
    DefaultExecutor executor = new DefaultExecutor();
    executor.setWatchdog(new ExecuteWatchdog(5000));
    if (jps != null) {
        CommandLine command = CommandLine.parse(jps + " -v");
        PumpStreamHandler streamHandler = new PumpStreamHandler(output, System.err);
        try {
            LOG.trace("executing '{}'", command);
            pis = new PipedInputStream(output);
            input = new DataInputStream(pis);
            parser = new PsParser(input, "opennms_bootstrap.jar", "status", 0);
            parser.start();
            executor.setStreamHandler(streamHandler);
            int exitValue = executor.execute(command);
            IOUtils.closeQuietly(output);
            parser.join();
            processes.addAll(parser.getProcesses());
            LOG.trace("finished '{}'", command);
            if (exitValue != 0) {
                LOG.debug("error running '{}': exit value was {}", command, exitValue);
            }
        } catch (final Exception e) {
            LOG.debug("Failed to run '{}'", command, e);
        } finally {
            IOUtils.closeQuietly(input);
            IOUtils.closeQuietly(pis);
            IOUtils.closeQuietly(output);
        }
    }
    LOG.trace("looking for ps");
    final String ps = getResourceLocator().findBinary("ps");
    if (ps != null) {
        // try Linux/Mac style
        CommandLine command = CommandLine.parse(ps + " aww -o pid -o args");
        output = new PipedOutputStream();
        PumpStreamHandler streamHandler = new PumpStreamHandler(output, System.err);
        try {
            LOG.trace("executing '{}'", command);
            pis = new PipedInputStream(output);
            input = new DataInputStream(pis);
            parser = new PsParser(input, "opennms_bootstrap.jar", "status", 0);
            parser.start();
            executor.setStreamHandler(streamHandler);
            int exitValue = executor.execute(command);
            IOUtils.closeQuietly(output);
            parser.join(MAX_PROCESS_WAIT);
            processes.addAll(parser.getProcesses());
            LOG.trace("finished '{}'", command);
            if (exitValue != 0) {
                LOG.debug("error running '{}': exit value was {}", command, exitValue);
            }
        } catch (final Exception e) {
            LOG.debug("error running '{}'", command, e);
        } finally {
            IOUtils.closeQuietly(input);
            IOUtils.closeQuietly(pis);
            IOUtils.closeQuietly(output);
        }
        if (processes.size() == 0) {
            // try Solaris style
            command = CommandLine.parse(ps + " -ea -o pid -o args");
            output = new PipedOutputStream();
            streamHandler = new PumpStreamHandler(output, System.err);
            try {
                LOG.trace("executing '{}'", command);
                pis = new PipedInputStream(output);
                input = new DataInputStream(pis);
                parser = new PsParser(input, "opennms_bootstrap.jar", "status", 0);
                parser.start();
                executor.setStreamHandler(streamHandler);
                int exitValue = executor.execute(command);
                IOUtils.closeQuietly(output);
                parser.join(MAX_PROCESS_WAIT);
                processes.addAll(parser.getProcesses());
                LOG.trace("finished '{}'", command);
                if (exitValue != 0) {
                    LOG.debug("error running '{}': exit value was {}", command, exitValue);
                }
            } catch (final Exception e) {
                LOG.debug("error running '{}'", command, e);
            } finally {
                IOUtils.closeQuietly(input);
                IOUtils.closeQuietly(pis);
                IOUtils.closeQuietly(output);
            }
        }
    }
    if (processes.size() == 0) {
        LOG.warn("Unable to find any OpenNMS processes.");
    }
    return processes;
}