Example usage for java.lang Runtime getRuntime

Introduction

In this page you can find the example usage for java.lang Runtime getRuntime.

Prototype

public static Runtime getRuntime()

Source Link

Document

Returns the runtime object associated with the current Java application.

Usage

From source file:lunarion.cluster.quickstart.ExampleProcess.java

public static void main(String[] args) throws Exception {
    String zkConnectString = "localhost:2181";
    String clusterName = "storage-integration-cluster";
    String instanceName = "localhost_8905";
    String file = null;/*from w ww.j  ava 2s . com*/
    String stateModelValue = "MasterSlave";
    int delay = 0;
    boolean skipZeroArgs = true;// false is for dev testing
    if (!skipZeroArgs || args.length > 0) {
        CommandLine cmd = processCommandLineArgs(args);
        zkConnectString = cmd.getOptionValue(zkServer);
        clusterName = cmd.getOptionValue(cluster);

        String host = cmd.getOptionValue(hostAddress);
        String portString = cmd.getOptionValue(hostPort);
        int port = Integer.parseInt(portString);
        instanceName = host + "_" + port;

        file = cmd.getOptionValue(configFile);
        if (file != null) {
            File f = new File(file);
            if (!f.exists()) {
                System.err.println("static config file doesn't exist");
                System.exit(1);
            }
        }

        stateModelValue = cmd.getOptionValue(stateModel);
        if (cmd.hasOption(transDelay)) {
            try {
                delay = Integer.parseInt(cmd.getOptionValue(transDelay));
                if (delay < 0) {
                    throw new Exception("delay must be positive");
                }
            } catch (Exception e) {
                e.printStackTrace();
                delay = 0;
            }
        }
    }
    // Espresso_driver.py will consume this
    System.out.println("Starting Process with ZK:" + zkConnectString);

    ExampleProcess process = new ExampleProcess(zkConnectString, clusterName, instanceName, file,
            stateModelValue, delay);

    process.start();

    Runtime.getRuntime().addShutdownHook(new HelixManagerShutdownHook(process.getManager()));

    Thread.currentThread().join();
}

From source file:Main.java

public static int getNbCpus() {
    return Runtime.getRuntime().availableProcessors();
}

From source file:Main.java

public static long maxMemory() {
    return Runtime.getRuntime().maxMemory();
}

From source file:Main.java

public static long freeMemory() {
    return Runtime.getRuntime().freeMemory();
}

From source file:Main.java

public static long totalMemory() {
    return Runtime.getRuntime().totalMemory();
}

From source file:Main.java

public static void releaseMemGc() {
    if ((Runtime.getRuntime().freeMemory() / Runtime.getRuntime().totalMemory()) > 0.7)
        System.gc();/*from  w  w  w  .  j av  a 2 s. c  om*/
}

From source file:Main.java

public static long getFreeMemory() {
    return Runtime.getRuntime().freeMemory();
}

From source file:Main.java

public static long getTotalMemory() {
    return Runtime.getRuntime().totalMemory();
}

From source file:Main.java

public static int getProcessorsCount() {
    return Runtime.getRuntime().availableProcessors();
}

From source file:Main.java

public static int getMaxMemory() {
    return (int) Runtime.getRuntime().maxMemory();
}