Example usage for java.lang Object wait

Introduction

In this page you can find the example usage for java.lang Object wait.

Prototype

public final void wait() throws InterruptedException 

Source Link

Document

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Usage

From source file:org.echocat.jconscius.cluster.impl.relay.station.RelayStationLauncher.java

public static void main(String[] arguments) throws Exception {
    final RelayStation station = createStation(arguments);
    if (station != null) {
        final Object lock = new Object();
        final Thread shutdownThread = new Thread("ShutdownHook") {
            @Override/*  w  w w. j  a  v  a  2  s .co m*/
            public void run() {
                LOG.info("Station is going down now...");
                station.close();
                LOG.info("Station is down! Bye.");
                synchronized (lock) {
                    lock.notifyAll();
                }
            }
        };
        Runtime.getRuntime().addShutdownHook(shutdownThread);
        LOG.info("Station is starting...");
        station.init();
        LOG.info("Station is ready!");

        //noinspection SynchronizationOnLocalVariableOrMethodParameter
        synchronized (lock) {
            lock.wait();
        }
    }
}

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From source file:eu.stratosphere.nephele.taskmanager.TaskManager.java

/**
 * Entry point for the program./*from w  ww .jav  a  2 s.c om*/
 * 
 * @param args
 *        arguments from the command line
 * @throws IOException 
 */
@SuppressWarnings("static-access")
public static void main(String[] args) throws IOException {
    Option configDirOpt = OptionBuilder.withArgName("config directory").hasArg()
            .withDescription("Specify configuration directory.").create("configDir");
    // tempDir option is used by the YARN client.
    Option tempDir = OptionBuilder.withArgName("temporary directory (overwrites configured option)").hasArg()
            .withDescription("Specify temporary directory.").create(ARG_CONF_DIR);
    configDirOpt.setRequired(true);
    tempDir.setRequired(false);
    Options options = new Options();
    options.addOption(configDirOpt);
    options.addOption(tempDir);

    CommandLineParser parser = new GnuParser();
    CommandLine line = null;
    try {
        line = parser.parse(options, args);
    } catch (ParseException e) {
        System.err.println("CLI Parsing failed. Reason: " + e.getMessage());
        System.exit(FAILURE_RETURN_CODE);
    }

    String configDir = line.getOptionValue(configDirOpt.getOpt(), null);
    String tempDirVal = line.getOptionValue(tempDir.getOpt(), null);

    // First, try to load global configuration
    GlobalConfiguration.loadConfiguration(configDir);
    if (tempDirVal != null // the YARN TM runner has set a value for the temp dir
            // the configuration does not contain a temp direcory
            && GlobalConfiguration.getString(ConfigConstants.TASK_MANAGER_TMP_DIR_KEY, null) == null) {
        Configuration c = GlobalConfiguration.getConfiguration();
        c.setString(ConfigConstants.TASK_MANAGER_TMP_DIR_KEY, tempDirVal);
        LOG.info("Setting temporary directory to " + tempDirVal);
        GlobalConfiguration.includeConfiguration(c);
    }
    System.err.println("Configuration " + GlobalConfiguration.getConfiguration());
    LOG.info("Current user " + UserGroupInformation.getCurrentUser().getShortUserName());

    {
        // log the available JVM memory
        long maxMemoryMiBytes = Runtime.getRuntime().maxMemory() >>> 20;
        LOG.info("Starting TaskManager in a JVM with " + maxMemoryMiBytes + " MiBytes maximum heap size.");
    }

    // Create a new task manager object
    try {
        new TaskManager();
    } catch (Exception e) {
        LOG.fatal("Taskmanager startup failed: " + e.getMessage(), e);
        System.exit(FAILURE_RETURN_CODE);
    }

    // park the main thread to keep the JVM alive (all other threads may be daemon threads)
    Object mon = new Object();
    synchronized (mon) {
        try {
            mon.wait();
        } catch (InterruptedException ex) {
        }
    }
}

---

From source file:eu.stratosphere.nephele.jobmanager.JobManager.java

/**
 * Entry point for the program/*from w  ww  .ja va 2s.  c  om*/
 * 
 * @param args
 *        arguments from the command line
 */

public static void main(String[] args) {
    // determine if a valid log4j config exists and initialize a default logger if not
    if (System.getProperty("log4j.configuration") == null) {
        Logger root = Logger.getRootLogger();
        root.removeAllAppenders();
        PatternLayout layout = new PatternLayout("%d{HH:mm:ss,SSS} %-5p %-60c %x - %m%n");
        ConsoleAppender appender = new ConsoleAppender(layout, "System.err");
        root.addAppender(appender);
        root.setLevel(Level.INFO);
    }

    JobManager jobManager;
    try {
        jobManager = initialize(args);
        // Start info server for jobmanager
        jobManager.startInfoServer();
    } catch (Exception e) {
        LOG.fatal(e.getMessage(), e);
        System.exit(FAILURE_RETURN_CODE);
    }

    // Clean up is triggered through a shutdown hook
    // freeze this thread to keep the JVM alive (the job manager threads are daemon threads)
    Object w = new Object();
    synchronized (w) {
        try {
            w.wait();
        } catch (InterruptedException e) {
        }
    }
}

---

From source file:org.apache.flink.runtime.taskmanager.TaskManager.java

/**
 * Entry point for the TaskManager executable.
 * //www  . j a v  a2  s  .  co  m
 * @param args Arguments from the command line
 * @throws IOException 
 */
@SuppressWarnings("static-access")
public static void main(String[] args) throws IOException {
    Option configDirOpt = OptionBuilder.withArgName("config directory").hasArg()
            .withDescription("Specify configuration directory.").create("configDir");
    // tempDir option is used by the YARN client.
    Option tempDir = OptionBuilder.withArgName("temporary directory (overwrites configured option)").hasArg()
            .withDescription("Specify temporary directory.").create(ARG_CONF_DIR);
    configDirOpt.setRequired(true);
    tempDir.setRequired(false);
    Options options = new Options();
    options.addOption(configDirOpt);
    options.addOption(tempDir);

    CommandLineParser parser = new GnuParser();
    CommandLine line = null;
    try {
        line = parser.parse(options, args);
    } catch (ParseException e) {
        System.err.println("CLI Parsing failed. Reason: " + e.getMessage());
        System.exit(STARTUP_FAILURE_RETURN_CODE);
    }

    String configDir = line.getOptionValue(configDirOpt.getOpt(), null);
    String tempDirVal = line.getOptionValue(tempDir.getOpt(), null);

    // First, try to load global configuration
    GlobalConfiguration.loadConfiguration(configDir);
    if (tempDirVal != null // the YARN TM runner has set a value for the temp dir
            // the configuration does not contain a temp directory
            && GlobalConfiguration.getString(ConfigConstants.TASK_MANAGER_TMP_DIR_KEY, null) == null) {
        Configuration c = GlobalConfiguration.getConfiguration();
        c.setString(ConfigConstants.TASK_MANAGER_TMP_DIR_KEY, tempDirVal);
        LOG.info("Setting temporary directory to " + tempDirVal);
        GlobalConfiguration.includeConfiguration(c);
    }

    // print some startup environment info, like user, code revision, etc
    EnvironmentInformation.logEnvironmentInfo(LOG, "TaskManager");

    // Create a new task manager object
    try {
        createTaskManager(ExecutionMode.CLUSTER);
    } catch (Throwable t) {
        LOG.error("Taskmanager startup failed: " + t.getMessage(), t);
        System.exit(STARTUP_FAILURE_RETURN_CODE);
    }

    // park the main thread to keep the JVM alive (all other threads may be daemon threads)
    Object mon = new Object();
    synchronized (mon) {
        try {
            mon.wait();
        } catch (InterruptedException ex) {
        }
    }
}

---

From source file:Main.java

public static void wait(Object object) {
    try {//from w  ww.ja  v  a 2  s  . c  o  m
        object.wait();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

---

From source file:Main.java

public static void waitNoShit(Object o) {
    try {//w  ww .  j  a v a 2 s.c  o  m
        o.wait();
    } catch (InterruptedException e) {
    }
}

---

From source file:Main.java

public static void wait(Object o) {
    try {//from   www.j ava2  s  .  co  m
        o.wait();
    } catch (InterruptedException e) {
    }
}

---

From source file:Main.java

public static void waitWithoutInterrupt(Object object) {
    try {/*w  ww.j a va 2  s  . c o  m*/
        object.wait();
    } catch (InterruptedException e) {
        Log.w(TAG, "unexpected interrupt: " + object);
    }
}

---

From source file:Main.java

public static void wait(Object o) {
    try {/*from   w w  w .  jav  a 2  s . co  m*/
        synchronized (o) {
            o.wait();
        }
    } catch (InterruptedException e) {
        // ignore
    }
}

---

From source file:Main.java

/**
 * Waits for a object for synchronization purposes.
 *//*from w ww  . j a v a 2s . co  m*/
public static void wait(Object obj) {
    synchronized (obj) {
        try {
            obj.wait();
        } catch (InterruptedException inex) {
            //ignore
        }
    }
}

---

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