fujohnwang

/**
 * Project File of Scala, Right Reserved by Darren Studio Works
 * <p/>
 * User: fujohnwang
 * Date: 10/26/11
 */
public class SharedObject {
    public int age;
    public String name;
    public boolean married;

fujohnwang

    Class.forName("com.mysql.jdbc.Driver")
    val connection = DriverManager.getConnection("jdbc:mysql://10.20.142.140/", "darren", "")
    try {
      val command = ComBinlogDump("mysql-bin.000001", 4L, 111)
      val buffer = connection.asInstanceOf[JDBC4Connection].getIO.sendCommand(MysqlDefs.COM_BINLOG_DUMP, null, command.toMysqlBuffer(), false, null, 0)
      println("buffer.getPosition=" + buffer.getPosition)
      println("buffer.getBufLength=" + buffer.getBufLength)
      println(buffer.dump())
    } finally {
      connection.close()

fujohnwang

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

fujohnwang

class CreditCardValidator {
  @BeanProperty
  var cardNumberLength = 16

  def validate(cardNumber: String): Boolean = {
    val numberString = StringUtils.deleteWhitespace(cardNumber)
    if (numberString.length != cardNumberLength) return false
    if (!StringUtils.isNumeric(numberString)) return false
    val digits = numberString.map(c => java.lang.Byte.valueOf(String.valueOf(c)))
    val total = digits.zipWithIndex.foldLeft(0)((total, e) => if (e._2 % 2 != 0) total + e._1 else total + doubleFlat(e._1))

fujohnwang

trait Messenger {
  def send(topic: String, message: String): Unit

  def send(topic: String, messageKey: String, messageBody: String): Unit
}

class KafkaMessenger(producer: Producer[String, String]) extends Messenger {
  override def send(topic: String, message: String): Unit = send(topic, null, message)

  override def send(topic: String, messageKey: String, messageBody: String): Unit = {

fujohnwang

/**
 * Hello world!
 */
public class App {
    public static void main(String[] args) {
        Logger logger = LoggerFactory.getLogger("App");
        Thread.currentThread().setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
            @Override
            public void uncaughtException(Thread t, Throwable e) {
                System.out.println("-----------------------we got here?");

fujohnwang

    <properties>
        <compiler.version>1.6</compiler.version>
        <java_source_version>1.6</java_source_version>
        <java_target_version>1.6</java_target_version>
        <file_encoding>UTF-8</file_encoding>
    </properties>

    <build>
        <finalName>test</finalName>
        <plugins>

fujohnwang

Question:
. How to run Ansible without specifying the inventory but the host directly?
. Run a playbook or command with arbitrary host not in the inventory hosts list?
. run ansible with arbitrary host/ip without inventory?

Answer:
Surprisingly, the trick is to append a ,
The host parameter preceding the , can be either a hostname or an IPv4/v6 address.

ansible all -i example.com,

fujohnwang

哪有什么岁月静好，无非是有人替你寻衅滋事罢了，比如老罗与暖气片的故事

fujohnwang

type D=Double;def w(x:D,y:D,a:D)={val(i,j)=(x-a,y-8);Math.sqrt(i*i+j*j)< 8};val l:Stream[Char]="love".toStream#:::l;val c=l.toIterator;def p(b:Boolean)=print(if(b)c.next else' ');for(y<-0 to 24){for(x<-0 to 32){if(y>7)p((16-x).abs< 24-y)else p(w(x,y,8)|w(x,y,24))};println}