Examples of ExternalCommand

com.linkedin.helix.ExternalCommand
This class encapsulates a java Process to handle properly output and error and preventing potential deadlocks. The idea is that the command is executed and you can get the error or output. Simple to use. Should not be used for big outputs because they are buffered internally. @author ypujante@linkedin.com
net.fenyo.gnetwatch.actions.ExternalCommand
Instances of this class launch and manage processes outside of the JVM. @author Alexandre Fenyo @version $Id: ExternalCommand.java,v 1.17 2008/05/22 19:46:21 fenyo Exp $
net.sf.pipet.modules.ExternalCommand
org.apache.helix.ExternalCommand
org.linkedin.util.concurrent.ExternalCommand
This class encapsulates a java Process to handle properly output and error and preventing potential deadlocks. The idea is that the command is executed and you can get the error or output. Simple to use. Should not be used for big outputs because they are buffered internally. @author ypujante@linkedin.com

Examples of org.apache.helix.ExternalCommand

    String methodName = TestHelper.getTestMethodName();
    String testName = className + "_" + methodName;


    System.out.println("START " + testName + " at " + new Date(System.currentTimeMillis()));


    ExternalCommand cmd = ScriptTestHelper.runCommandLineTest("dummy.sh");
    String output = cmd.getStringOutput("UTF8");
    int idx = output.indexOf("this is a dummy test for verify ExternalCommand works");
    Assert.assertNotSame(idx, -1);


    System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));

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Examples of org.apache.helix.ExternalCommand

        timeoutValue = Long.parseLong(timeout);
      } catch (NumberFormatException e) {
        // OK to use 0
      }
    }
    ExternalCommand externalCmd =
        ExternalCommand.executeWithTimeout(new File(workingDir), cmdValue, timeoutValue, args);


    int exitValue = externalCmd.exitValue();


    // debug
    // System.out.println("command: " + cmd + ", exitValue: " + exitValue
    // + " output:\n" + externalCmd.getStringOutput());


    if (_logger.isDebugEnabled()) {
      _logger.debug("command: " + cmd + ", exitValue: " + exitValue + " output:\n"
          + externalCmd.getStringOutput());
    }


    // monitor pid if pidFile exists
    if (pidFile == null) {
      // no pid to monitor

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Examples of org.apache.helix.ExternalCommand

        timeoutValue = Long.parseLong(timeout);
      } catch (NumberFormatException e) {
        // OK to use 0
      }
    }
    ExternalCommand externalCmd =
        ExternalCommand.executeWithTimeout(new File(workingDir), cmdValue, timeoutValue, args);


    int exitValue = externalCmd.exitValue();


    // debug
    // System.out.println("command: " + cmd + ", exitValue: " + exitValue
    // + " output:\n" + externalCmd.getStringOutput());


    if (_logger.isDebugEnabled()) {
      _logger.debug("command: " + cmd + ", exitValue: " + exitValue + " output:\n"
          + externalCmd.getStringOutput());
    }


    // monitor pid if pidFile exists
    if (pidFile == null) {
      // no pid to monitor

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Examples of org.apache.helix.ExternalCommand

    String methodName = TestHelper.getTestMethodName();
    String testName = className + "_" + methodName;


    System.out.println("START " + testName + " at " + new Date(System.currentTimeMillis()));


    ExternalCommand cmd = ScriptTestHelper.runCommandLineTest("helix_random_kill_local_startzk.sh");
    String output = cmd.getStringOutput("UTF8");
    int i = getStateTransitionLatency(0, output);
    int j = output.indexOf("ms", i);
    long latency = Long.parseLong(output.substring(i, j));
    System.out.println("startup latency: " + latency);

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Examples of org.apache.helix.ExternalCommand

    }
  }
  
  public static ProcessStateCode getProcessState(String processId) throws Exception {
    if (OS_NAME.equals("Mac OS X") || OS_NAME.equals("Linux")) {
      ExternalCommand cmd = ExternalCommand.start("ps", processId);
      cmd.waitFor();
      
      // split by new lines
      // should return 2 lines for an existing process, or 1 line for a non-existing process
      String lines[] = cmd.getStringOutput().split("[\\r\\n]+");
      if (lines.length != 2) {
        LOG.info("process: " + processId + " not exist");
        return null;
      }

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Examples of org.apache.helix.ExternalCommand

        timeoutValue = Long.parseLong(timeout);
      } catch (NumberFormatException e) {
        // OK to use 0
      }
    }
    ExternalCommand externalCmd = ExternalCommand.executeWithTimeout(new File(workingDir), 
        cmdValue, timeoutValue, args);
    
    // debug
    // System.out.println("command output:\n" + externalCmd.getStringOutput());
    
    int exitValue = externalCmd.exitValue();
    _logger.info("Executed command: " + cmd + ", exitValue: " + exitValue);
    
    // if exit-value != 0, transition fails
    if (exitValue != 0) {
      throw new Exception("fail to execute command: " + cmd + ", exitValue: " + exitValue 
          + ", error: " + externalCmd.getStringError());
    }
    
    // monitor pid if pidFile exists
    if (pidFile == null) {
      // no pid to monitor

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Examples of org.linkedin.util.concurrent.ExternalCommand

   * @throws InterruptedException
   */
  public static File copyToJar(File jarFile, File root, boolean update)
    throws IOException, InterruptedException
  {
    ExternalCommand cmd =
      ExternalCommand.create("jar", "-" + (update ? "u" : "c") +  "vfM",
                             jarFile.getCanonicalPath(), 
                             ".");
    cmd.setWorkingDirectory(root);
    cmd.start();
    cmd.waitFor();


    assertEquals(0, cmd.exitValue());


    jarFile.deleteOnExit();
    return jarFile.getCanonicalFile();
  }

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