Java RandomStringUtils.randomAscii方法代码示例

import org.apache.commons.lang3.RandomStringUtils; //导入方法依赖的package包/类
@Ignore
@Test
public void producerSendsToNonExistingTopic() {
    ServiceProperties serviceProperties = fillServiceProperties();

    Topic cruft = new Topic("cruft");
    Topic lard = new Topic("lard");

    Producer producer = new ProducerFactory(serviceProperties).createProducer();

    String key = RandomStringUtils.randomAscii(5);
    SayHelloToCmd payload = SayHelloToCmd.newBuilder().setName(key).build();

    Message request = Messages.requestFor(cruft, lard, key, payload, new OrangeContext());

    producer.send(request);

    // Results:
    // 1.) NO topic auto creation i.e. KAFKA_AUTO_CREATE_TOPICS_ENABLE = false
    // 2017-04-12 18:14:41,239 [Time-limited test] DEBUG c.s.s.f.kafka.messaging.Producer - Sending message com.sixt.service.framework.kafka.messaging.SayHelloToCmd with key O+oRQ to topic cruft
    // loads of: 2017-04-12 18:14:41,340 [kafka-producer-network-thread | producer-2] WARN  o.apache.kafka.clients.NetworkClient - Error while fetching metadata with correlation id 0 : {cruft=UNKNOWN_TOPIC_OR_PARTITION}
    // and finally: org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 60000 ms.
    // 2.) WITH topic auto creation i.e. KAFKA_AUTO_CREATE_TOPICS_ENABLE = true
    // 2017-04-12 18:18:24,488 [Time-limited test] DEBUG c.s.s.f.kafka.messaging.Producer - Sending message com.sixt.service.framework.kafka.messaging.SayHelloToCmd with key uXdJ~ to topic cruft
    // one: 2017-04-12 18:18:24,638 [kafka-producer-network-thread | producer-2] WARN  o.apache.kafka.clients.NetworkClient - Error while fetching metadata with correlation id 0 : {cruft=LEADER_NOT_AVAILABLE
    // and finally: success
}
 

import org.apache.commons.lang3.RandomStringUtils; //导入方法依赖的package包/类
@SubscribeEvent
public void onLivingUpdate(LivingEvent.LivingUpdateEvent event)
{
    if(Clef.config.zombiesCanUseInstruments == 1 && !event.getEntityLiving().world.isRemote && event.getEntityLiving() instanceof EntityZombie)
    {
        EntityZombie zombie = (EntityZombie)event.getEntityLiving();
        if(zombie.getRNG().nextFloat() < 0.004F &&ItemInstrument.getUsableInstrument(zombie) != null && getTrackPlayedByPlayer(zombie) == null)
        {
            Track track = Clef.eventHandlerServer.findTrackByBand("zombies");
            if(track != null)
            {
                if(track.zombies.add(zombie.getEntityId()))
                {
                    Clef.channel.sendToAll(new PacketPlayingTracks(track));
                }
            }
            else
            {
                TrackFile randTrack = AbcLibrary.tracks.get(zombie.getRNG().nextInt(AbcLibrary.tracks.size()));
                track = new Track(RandomStringUtils.randomAscii(IOUtil.IDENTIFIER_LENGTH), "zombies", randTrack.md5, randTrack.track, false);
                if(track.getTrack().trackLength > 0)
                {
                    track.playAtProgress(zombie.getRNG().nextInt(track.getTrack().trackLength));
                }
                Clef.eventHandlerServer.tracksPlaying.add(track);
                track.zombies.add(zombie.getEntityId());
                Clef.channel.sendToAll(new PacketPlayingTracks(track));
            }
        }
    }
}
 

import org.apache.commons.lang3.RandomStringUtils; //导入方法依赖的package包/类
@Ignore
@Test
public void consumerSubscribesToNonExistingTopic() throws InterruptedException {
    ServiceProperties serviceProperties = fillServiceProperties();

    Topic cruft = new Topic("krufty");

    CountDownLatch latch = new CountDownLatch(1);

    Consumer consumer = consumerFactoryWithHandler(serviceProperties, SayHelloToCmd.class, new MessageHandler<SayHelloToCmd>() {
                @Override
                public void onMessage(Message<SayHelloToCmd> message, OrangeContext context) {
                    latch.countDown();
                }
            }
    ).consumerForTopic(cruft, new DiscardFailedMessages());


    Producer producer = new ProducerFactory(serviceProperties).createProducer();

    String key = RandomStringUtils.randomAscii(5);
    SayHelloToCmd payload = SayHelloToCmd.newBuilder().setName(key).build();

    Message request = Messages.requestFor(cruft, cruft, key, payload, new OrangeContext());

    producer.send(request);


    assertTrue(latch.await(1, TimeUnit.MINUTES));
    producer.shutdown();
    consumer.shutdown();


    // Results:
    // 1.) WITH topic auto creation i.e. KAFKA_AUTO_CREATE_TOPICS_ENABLE = true
    // All ok, needs to discover coordinator etc.
    // 2.) NO topic auto creation i.e. KAFKA_AUTO_CREATE_TOPICS_ENABLE = false
    //2017-04-12 18:27:16,701 [pool-9-thread-1] INFO  c.s.s.f.kafka.messaging.Consumer - Consumer in group kruftmeister-com.sixt.service.unknown subscribed to topic kruftmeister
    //2017-04-12 18:27:16,852 [pool-9-thread-1] WARN  o.apache.kafka.clients.NetworkClient - Error while fetching metadata with correlation id 1 : {kruftmeister=UNKNOWN_TOPIC_OR_PARTITION}
    //2017-04-12 18:27:18,876 [pool-9-thread-1] WARN  o.apache.kafka.clients.NetworkClient - Error while fetching metadata with correlation id 40 : {kruftmeister=UNKNOWN_TOPIC_OR_PARTITION}
    //2017-04-12 18:27:18,889 [pool-9-thread-1] INFO  o.a.k.c.c.i.AbstractCoordinator - Discovered coordinator 172.19.0.3:9092 (id: 2147482646 rack: null) for group kruftmeister-com.sixt.service.unknown.
    //2017-04-12 18:27:18,892 [pool-9-thread-1] INFO  o.a.k.c.c.i.ConsumerCoordinator - Revoking previously assigned partitions [] for group kruftmeister-com.sixt.service.unknown
    //2017-04-12 18:27:18,894 [pool-9-thread-1] DEBUG c.s.s.f.kafka.messaging.Consumer - ConsumerRebalanceListener.onPartitionsRevoked on []
    //2017-04-12 18:27:18,917 [pool-9-thread-1] INFO  o.a.k.c.c.i.AbstractCoordinator - (Re-)joining group kruftmeister-com.sixt.service.unknown
    //2017-04-12 18:27:18,937 [pool-9-thread-1] INFO  o.a.k.c.c.i.AbstractCoordinator - Marking the coordinator 172.19.0.3:9092 (id: 2147482646 rack: null) dead for group kruftmeister-com.sixt.service.unknown
    //2017-04-12 18:27:19,041 [pool-9-thread-1] INFO  o.a.k.c.c.i.AbstractCoordinator - Discovered coordinator 172.19.0.3:9092 (id: 2147482646 rack: null) for group kruftmeister-com.sixt.service.unknown.
    //2017-04-12 18:27:19,041 [pool-9-thread-1] INFO  o.a.k.c.c.i.AbstractCoordinator - (Re-)joining group kruftmeister-com.sixt.service.unknown
    //2017-04-12 18:27:19,135 [pool-9-thread-1] INFO  o.a.k.c.c.i.AbstractCoordinator - Successfully joined group kruftmeister-com.sixt.service.unknown with generation 1
    //2017-04-12 18:27:19,135 [pool-9-thread-1] INFO  o.a.k.c.c.i.ConsumerCoordinator - Setting newly assigned partitions [] for group kruftmeister-com.sixt.service.unknown
    //2017-04-12 18:27:19,135 [pool-9-thread-1] DEBUG c.s.s.f.kafka.messaging.Consumer - ConsumerRebalanceListener.onPartitionsAssigned on []
    // -> assigned to a topic with no partitions?
}
 

import org.apache.commons.lang3.RandomStringUtils; //导入方法依赖的package包/类
public static void playAbc(String md5, String bandName, boolean syncPlay, boolean syncTrack, EntityPlayer player) //CLIENT NEVER CALLS THIS.
{
    TrackFile file = getTrack(md5);
    Track track;
    if(!bandName.isEmpty())
    {
        //Find the band
        track = Clef.eventHandlerServer.findTrackByBand(bandName);
        if(track == null && md5.isEmpty())
        {
            return;
        }
        Track track1 = track;
        if(track == null || !syncTrack) //No band
        {
            track = new Track(RandomStringUtils.randomAscii(IOUtil.IDENTIFIER_LENGTH), bandName, md5, (file != null ? file.track : null), false);
        }
        if(syncPlay && track1 != null)
        {
            track.playAtProgress(track1.playProg);
        }
    }
    else if(md5.isEmpty())
    {
        return;
    }
    else
    {
        track = new Track(RandomStringUtils.randomAscii(IOUtil.IDENTIFIER_LENGTH), bandName, md5, (file != null ? file.track : null), false);
    }

    if(file == null) //We don't have the ABC. Ask from the client.
    {
        if(requestedABCFromPlayers.add(md5))
        {
            if(track.getTrack() == null)
            {
                tracksWaitingForTrackInfo.put(md5, track);
            }
            Clef.channel.sendTo(new PacketRequestFile(md5, false), player);
        }
    }
    Track playerTrack = Clef.eventHandlerServer.getTrackPlayedByPlayer(player);
    if(playerTrack != null)
    {
        playerTrack.players.remove(player);
        if(!playerTrack.hasObjectsPlaying())
        {
            playerTrack.stop();
        }
        Clef.channel.sendToAll(new PacketPlayingTracks(playerTrack));
    }

    //queue the track. track plays when the trackfile is set.
    Clef.eventHandlerServer.tracksPlaying.add(track);
    track.players.put(player, 0);
    if(track.getTrack() != null)
    {
        Clef.channel.sendToAll(new PacketPlayingTracks(track));
    }
}