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GithubExample.java
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GithubExample.java
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package io.fulmicotone.fqueue.examples;
import io.fulmicotone.fqueue.FQueue;
import io.fulmicotone.fqueue.FQueueRegistry;
import org.junit.Test;
import java.util.concurrent.TimeUnit;
public class GithubExample {
@Test
public void case1() throws InterruptedException {
int resultTimeoutInMilliSeconds = 2_000;
/**
* Make sure that you have only one instance of FQueueRegistry in your project.
* If using Spring please annotate it as @Bean
*/
FQueueRegistry registry = new FQueueRegistry();
/**
* CASE 1: Simple consuming, by default it consumes 1 element with flushing every 10 ms.
*/
registry.buildFQueue(String.class)
.consume(() -> (broadcaster, reason, elms) -> System.out.println("CASE 1 - Elements batched are: "+elms.size()));
/**
* Send fake objects
*/
for(int i = 0; i < 10; i++){
registry.sendBroadcast("Sample");
}
Thread.sleep(resultTimeoutInMilliSeconds);
}
@Test
public void case2() throws InterruptedException {
int resultTimeoutInMilliSeconds = 2_000;
/**
* Make sure that you have only one instance of FQueueRegistry in your project.
* If using Spring please annotate it as @Bean
*/
FQueueRegistry registry = new FQueueRegistry();
/**
* CASE 2: Batching consuming, it consumes data and aggregate them in chunks of 5 elements.
* If data are less than chunk size it will flush them every 1 second.
*/
registry.buildFQueue(String.class)
.batch()
.withChunkSize(5)
.withFlushTimeout(1)
.withFlushTimeUnit(TimeUnit.SECONDS)
.done()
.consume(() -> (broadcaster, reason, elms) -> System.out.println("CASE 2 - Elements batched are: " + elms.size()));
/**
* Send fake objects
*/
for(int i = 0; i < 10; i++){
registry.sendBroadcast("Sample");
}
Thread.sleep(resultTimeoutInMilliSeconds);
}
@Test
public void case3() throws InterruptedException {
int resultTimeoutInMilliSeconds = 2_000;
/**
* Make sure that you have only one instance of FQueueRegistry in your project.
* If using Spring please annotate it as @Bean
*/
FQueueRegistry registry = new FQueueRegistry();
/**
* CASE 3: Batching consuming with a custom accumulation function.
* it consumes data and aggregate them in chunks of 15 bytes elements (2 "Sample" string will fit in).
* If data are less than chunk size it will flush them every 1 second.
*/
registry.buildFQueue(String.class)
.batch()
.withChunkSize(15)
.withLengthFunction(s -> s.getBytes().length)
.withFlushTimeout(1)
.withFlushTimeUnit(TimeUnit.SECONDS)
.done()
.consume(() -> (broadcaster, reason, elms) -> System.out.println("CASE 3 - Elements batched are: "+elms.size()));
/**
* Send fake objects
*/
for(int i = 0; i < 10; i++){
registry.sendBroadcast("Sample");
}
Thread.sleep(resultTimeoutInMilliSeconds);
}
@Test
public void case4() throws InterruptedException {
int resultTimeoutInMilliSeconds = 2_000;
/**
* Make sure that you have only one instance of FQueueRegistry in your project.
* If using Spring please annotate it as @Bean
*/
FQueueRegistry registry = new FQueueRegistry();
/**
* CASE 4: Batching consuming with FanOut,
* fanOut(3) creates three nested FQueue, while the first defined acts as round-robin dispatcher
* Every nested FQueue consume data and aggregate them in chunks of 5 elements.
* If data are less than chunk size every nested FQueue will flush them every 1 second.
*/
registry.buildFQueue(String.class)
.fanOut(3)
.batch()
.withChunkSize(5)
.withFlushTimeout(1)
.withFlushTimeUnit(TimeUnit.SECONDS)
.done()
.consume(() -> (broadcaster, reason, elms) -> {
System.out.println("CASE 4 - currentThread is: "+Thread.currentThread().getName()+ " - Elements batched are: "+elms.size());
});
/**
* Send fake objects
*/
for(int i = 0; i < 10; i++){
registry.sendBroadcast("Sample");
}
Thread.sleep(resultTimeoutInMilliSeconds);
}
@Test
public void caseBroadcast() throws InterruptedException {
int resultTimeoutInMilliSeconds = 1_000;
/**
* Make sure that you have only one instance of FQueueRegistry in your project.
* If using Spring please annotate it as @Bean
*/
FQueueRegistry registry = new FQueueRegistry();
/**
* CASE Broadcast
* fanOut(3) creates three nested FQueue, while the first defined acts as round-robin dispatcher
* Every nested FQueue consume data and aggregate them in chunks of 5 elements.
* If data are less than chunk size every nested FQueue will flush them every 1 second.
*/
FQueue<String> one = registry.buildFQueue(String.class)
.consume(() -> (broadcaster, reason, elms) -> System.out.println("ONE - Elements received are: " + elms.size()));
FQueue<String> two = registry.buildFQueue(String.class)
.consume(() -> (broadcaster, reason, elms) -> System.out.println("TWO - Elements batched are: " + elms.size()));
/** This will received by one and two */
registry.sendBroadcast("Sample");
Thread.sleep(resultTimeoutInMilliSeconds);
}
@Test
public void caseSpecific() throws InterruptedException {
int resultTimeoutInMilliSeconds = 1_000;
/**
* Make sure that you have only one instance of FQueueRegistry in your project.
* If using Spring please annotate it as @Bean
*/
FQueueRegistry registry = new FQueueRegistry();
/**
* CASE Specific
* fanOut(3) creates three nested FQueue, while the first defined acts as round-robin dispatcher
* Every nested FQueue consume data and aggregate them in chunks of 5 elements.
* If data are less than chunk size every nested FQueue will flush them every 1 second.
*/
FQueue<String> one = registry.buildFQueue(String.class)
.consume(() -> (broadcaster, reason,elms) -> System.out.println("ONE - Elements received are: " + elms.size()));
FQueue<String> two = registry.buildFQueue(String.class)
.consume(() -> (broadcaster, reason,elms) -> System.out.println("TWO - Elements batched are: " + elms.size()));
/** This will received by one */
one.getQueue().add("Sample");
Thread.sleep(resultTimeoutInMilliSeconds);
}
@Test
public void caseFromFQueueToAnother() throws InterruptedException {
int resultTimeoutInMilliSeconds = 1_000;
/**
* Make sure that you have only one instance of FQueueRegistry in your project.
* If using Spring please annotate it as @Bean
*/
FQueueRegistry registry = new FQueueRegistry();
/**
* CASE PASS DATAS
* - Sometimes you want to pass datas between FQueue
* - It's possible by calling the "brodacaster" object injected into the consuming function
*/
FQueue<String> one = registry.buildFQueue(String.class)
.consume(() -> (broadcaster, reason,elms) -> {
// count all characters and send them to "two" FQueue
elms.stream()
.map(String::length)
.forEach(broadcaster::sendBroadcast);
});
FQueue<Integer> two = registry.buildFQueue(Integer.class)
.consume(() -> (broadcaster, reason, elms) -> {
elms.forEach(ch -> System.out.println("Character size is:" + ch));
});
/** This will received by one */
one.getQueue().add("Sample");
Thread.sleep(resultTimeoutInMilliSeconds);
}
}