/** {@inheritDoc} */
@Override
public void start(BenchmarkConfiguration cfg) throws Exception {
IgniteBenchmarkArguments args = new IgniteBenchmarkArguments();
BenchmarkUtils.jcommander(cfg.commandLineArguments(), args, "<ignite-node>");
IgniteConfiguration c = loadConfiguration(args.configuration());
assert c != null;
// Server node doesn't contains cache configuration. Driver will create dynamic cache.
c.setCacheConfiguration();
TransactionConfiguration tc = c.getTransactionConfiguration();
tc.setDefaultTxConcurrency(args.txConcurrency());
tc.setDefaultTxIsolation(args.txIsolation());
TcpCommunicationSpi commSpi = (TcpCommunicationSpi) c.getCommunicationSpi();
if (commSpi == null) commSpi = new TcpCommunicationSpi();
c.setCommunicationSpi(commSpi);
ignite = Ignition.start(c);
}
/**
* Executes example.
*
* @param args Command line arguments, none required.
*/
public static void main(String[] args) {
try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) {
System.out.println();
System.out.println(">>> Cache star schema example started.");
CacheConfiguration<Integer, FactPurchase> factCacheCfg =
new CacheConfiguration<>(PARTITIONED_CACHE_NAME);
factCacheCfg.setCacheMode(CacheMode.PARTITIONED);
factCacheCfg.setIndexedTypes(Integer.class, FactPurchase.class);
CacheConfiguration<Integer, Object> dimCacheCfg =
new CacheConfiguration<>(REPLICATED_CACHE_NAME);
dimCacheCfg.setCacheMode(CacheMode.REPLICATED);
dimCacheCfg.setIndexedTypes(
Integer.class, DimStore.class,
Integer.class, DimProduct.class);
try (IgniteCache<Integer, FactPurchase> factCache = ignite.getOrCreateCache(factCacheCfg);
IgniteCache<Integer, Object> dimCache = ignite.getOrCreateCache(dimCacheCfg)) {
populateDimensions(dimCache);
populateFacts(factCache);
queryStorePurchases();
queryProductPurchases();
}
}
}
/**
* Query all purchases made at a specific store for 3 specific products. This query uses
* cross-cache joins between {@link DimStore}, {@link DimProduct} objects stored in {@code
* 'replicated'} cache and {@link FactPurchase} objects stored in {@code 'partitioned'} cache.
*
* @throws IgniteException If failed.
*/
private static void queryProductPurchases() {
IgniteCache<Integer, FactPurchase> factCache = Ignition.ignite().cache(PARTITIONED_CACHE_NAME);
// All purchases for certain product made at store2.
// =================================================
DimProduct p1 = rand(dataProduct.values());
DimProduct p2 = rand(dataProduct.values());
DimProduct p3 = rand(dataProduct.values());
System.out.println(
"IDs of products [p1=" + p1.getId() + ", p2=" + p2.getId() + ", p3=" + p3.getId() + ']');
// Create cross cache query to get all purchases made at store2
// for specified products.
QueryCursor<Cache.Entry<Integer, FactPurchase>> prodPurchases =
factCache.query(
new SqlQuery(
FactPurchase.class,
"from \""
+ REPLICATED_CACHE_NAME
+ "\".DimStore, \""
+ REPLICATED_CACHE_NAME
+ "\".DimProduct, "
+ "\""
+ PARTITIONED_CACHE_NAME
+ "\".FactPurchase "
+ "where DimStore.id=FactPurchase.storeId and DimProduct.id=FactPurchase.productId "
+ "and DimStore.name=? and DimProduct.id in(?, ?, ?)")
.setArgs("Store2", p1.getId(), p2.getId(), p3.getId()));
printQueryResults(
"All purchases made at store2 for 3 specific products:", prodPurchases.getAll());
}
/**
* Listen to events that happen only on local node.
*
* @throws IgniteException If failed.
*/
private static void localListen() throws IgniteException {
System.out.println();
System.out.println(">>> Local event listener example.");
Ignite ignite = Ignition.ignite();
IgnitePredicate<TaskEvent> lsnr =
evt -> {
System.out.println(
"Received task event [evt=" + evt.name() + ", taskName=" + evt.taskName() + ']');
return true; // Return true to continue listening.
};
// Register event listener for all local task execution events.
ignite.events().localListen(lsnr, EVTS_TASK_EXECUTION);
// Generate task events.
ignite
.compute()
.withName("example-event-task")
.run(() -> System.out.println("Executing sample job."));
// Unsubscribe local task event listener.
ignite.events().stopLocalListen(lsnr);
}
/**
* Executes example.
*
* @param args Command line arguments, none required.
* @throws Exception If example execution failed.
*/
public static void main(String[] args) throws Exception {
try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) {
System.out.println();
System.out.println(">>> Events API example started.");
// Listen to events happening on local node.
localListen();
// Listen to events happening on all cluster nodes.
remoteListen();
// Wait for a while while callback is notified about remaining puts.
Thread.sleep(1000);
}
}
/**
* Listen to events coming from all cluster nodes.
*
* @throws IgniteException If failed.
*/
private static void remoteListen() throws IgniteException {
System.out.println();
System.out.println(">>> Remote event listener example.");
// This optional local callback is called for each event notification
// that passed remote predicate listener.
IgniteBiPredicate<UUID, TaskEvent> locLsnr =
(nodeId, evt) -> {
// Remote filter only accepts tasks whose name being with "good-task" prefix.
assert evt.taskName().startsWith("good-task");
System.out.println(
"Received task event [evt=" + evt.name() + ", taskName=" + evt.taskName());
return true; // Return true to continue listening.
};
// Remote filter which only accepts tasks whose name begins with "good-task" prefix.
IgnitePredicate<TaskEvent> rmtLsnr = evt -> evt.taskName().startsWith("good-task");
Ignite ignite = Ignition.ignite();
// Register event listeners on all nodes to listen for task events.
ignite.events().remoteListen(locLsnr, rmtLsnr, EVTS_TASK_EXECUTION);
// Generate task events.
for (int i = 0; i < 10; i++) {
ignite
.compute()
.withName(i < 5 ? "good-task-" + i : "bad-task-" + i)
.run(
new IgniteRunnable() {
// Auto-inject task session.
@TaskSessionResource private ComputeTaskSession ses;
@Override
public void run() {
System.out.println("Executing sample job for task: " + ses.getTaskName());
}
});
}
}
/**
* Query all purchases made at a specific store. This query uses cross-cache joins between {@link
* DimStore} objects stored in {@code 'replicated'} cache and {@link FactPurchase} objects stored
* in {@code 'partitioned'} cache.
*
* @throws IgniteException If failed.
*/
private static void queryStorePurchases() {
IgniteCache<Integer, FactPurchase> factCache = Ignition.ignite().cache(PARTITIONED_CACHE_NAME);
// All purchases for store1.
// ========================
// Create cross cache query to get all purchases made at store1.
QueryCursor<Cache.Entry<Integer, FactPurchase>> storePurchases =
factCache.query(
new SqlQuery(
FactPurchase.class,
"from \""
+ REPLICATED_CACHE_NAME
+ "\".DimStore, \""
+ PARTITIONED_CACHE_NAME
+ "\".FactPurchase "
+ "where DimStore.id=FactPurchase.storeId and DimStore.name=?")
.setArgs("Store1"));
printQueryResults("All purchases made at store1:", storePurchases.getAll());
}
/** {@inheritDoc} */
@Override
public void stop() throws Exception {
Ignition.stopAll(true);
}
