Example usage for org.apache.commons.launcher Launcher getJavaCommand

Introduction

In this page you can find the example usage for org.apache.commons.launcher Launcher getJavaCommand.

Prototype

public static synchronized String getJavaCommand() 

Source Link

Document

Get the full path of the Java command to execute.

Usage

From source file:de.tu_dresden.psy.fca.ConexpCljBridge.java

public ConexpCljBridge() {

    this.b = new byte[1];

    /**/*  ww w .  j a v  a  2s  .c  o m*/
     * build the command line (see conexp-clj/bin/conexp-clj)
     */

    String java_bin = Launcher.getJavaCommand();

    CommandLine conexp_cmd = new CommandLine(java_bin);
    conexp_cmd.addArgument("-server");
    conexp_cmd.addArgument("-cp");
    conexp_cmd.addArgument("./conexp-clj/lib/conexp-clj-0.0.7-alpha-SNAPSHOT-standalone.jar");
    conexp_cmd.addArgument("clojure.main");
    conexp_cmd.addArgument("-e");
    conexp_cmd.addArgument("");
    conexp_cmd.addArgument("./conexp-clj/lib/conexp-clj.clj");

    /**
     * open the pipes
     */

    this.to_conexp = new PipedOutputStream();
    try {
        this.stream_to_conexp = new PipedInputStream(this.to_conexp, 2048);
    } catch (IOException e2) {
        e2.printStackTrace();
    }

    this.stream_error_conexp = new PipedOutputStream();
    this.stream_from_conexp = new PipedOutputStream();

    try {
        this.from_conexp = new PipedInputStream(this.stream_from_conexp, 2048);
    } catch (IOException e1) {
        e1.printStackTrace();
    }
    try {
        this.error_conexp = new PipedInputStream(this.stream_error_conexp, 2048);
    } catch (IOException e1) {

        e1.printStackTrace();
    }

    /**
     * setup apache commons exec
     */

    this.result = new DefaultExecuteResultHandler();

    DefaultExecutor executor = new DefaultExecutor();
    executor.setExitValue(0);
    executor.setStreamHandler(
            new PumpStreamHandler(this.stream_from_conexp, this.stream_error_conexp, this.stream_to_conexp));

    /**
     * run in non-blocking mode
     */

    try {
        executor.execute(conexp_cmd, this.result);
    } catch (ExecuteException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    this.output_buffer = "";

}

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