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

Example 81 with DefaultExecutor

use of org.apache.commons.exec.DefaultExecutor in project stanbol by apache.

the class JarExecutor method start.

/**
 * Start the jar if not done yet, and setup runtime hook to stop it.
 */
public void start() throws Exception {
    final ExecuteResultHandler h = new ExecuteResultHandler() {

        @Override
        public void onProcessFailed(ExecuteException ex) {
            log.error("Process execution failed:" + ex, ex);
        }

        @Override
        public void onProcessComplete(int result) {
            log.info("Process execution complete, exit code=" + result);
        }
    };
    final String vmOptions = System.getProperty("jar.executor.vm.options");
    final Executor e = new DefaultExecutor();
    if (this.workingDirectory != null) {
        e.setWorkingDirectory(this.workingDirectory);
    }
    final CommandLine cl = new CommandLine(javaExecutable);
    if (vmOptions != null && vmOptions.length() > 0) {
        // not the case for common usage patterns
        for (String option : StringUtils.split(vmOptions, " ")) {
            cl.addArgument(option);
        }
    }
    cl.addArgument("-jar");
    cl.addArgument(jarToExecute.getAbsolutePath());
    cl.addArgument("-p");
    cl.addArgument(String.valueOf(serverPort));
    log.info("Executing " + cl);
    e.setStreamHandler(new PumpStreamHandler());
    e.setProcessDestroyer(new ShutdownHookProcessDestroyer());
    e.execute(cl, h);
}