package org.infinispan.query.dsl.embedded;
import static org.infinispan.query.dsl.Expression.max;
import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertTrue;
import java.util.ArrayList;
import java.util.List;
import org.infinispan.Cache;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.distribution.MagicKey;
import org.infinispan.notifications.Listener;
import org.infinispan.notifications.cachelistener.annotation.CacheEntryCreated;
import org.infinispan.notifications.cachelistener.annotation.CacheEntryModified;
import org.infinispan.notifications.cachelistener.event.CacheEntryCreatedEvent;
import org.infinispan.notifications.cachelistener.event.CacheEntryModifiedEvent;
import org.infinispan.objectfilter.ObjectFilter;
import org.infinispan.objectfilter.ParsingException;
import org.infinispan.query.Search;
import org.infinispan.query.dsl.Query;
import org.infinispan.query.dsl.QueryFactory;
import org.infinispan.query.test.Person;
import org.infinispan.test.MultipleCacheManagersTest;
import org.testng.annotations.Test;
/**
* @author anistor@redhat.com
* @since 7.2
*/
@Test(groups = "functional", testName = "query.dsl.embedded.ClusteredListenerWithDslFilterTest")
public class ClusteredListenerWithDslFilterTest extends MultipleCacheManagersTest {
private final int NUM_NODES = 3;
@Override
protected void createCacheManagers() throws Throwable {
ConfigurationBuilder cfgBuilder = getDefaultClusteredCacheConfig(CacheMode.DIST_SYNC, false);
createClusteredCaches(NUM_NODES, cfgBuilder);
}
public void testEventFilter() {
QueryFactory qf = Search.getQueryFactory(cache(0));
Query query = qf.from(org.infinispan.query.test.Person.class)
.having("age").lte(31)
.build();
EntryListener listener = new EntryListener();
for (int i = 0; i < 5; ++i) {
Person value = new Person();
value.setName("John");
value.setAge(i + 30);
Cache<Object, Person> cache = cache(i % NUM_NODES);
Object key = new MagicKey(cache);
cache.put(key, value);
}
// we want our cluster listener to be notified only if the entity matches our query
cache(0).addListener(listener, Search.makeFilter(query), null);
for (int i = 0; i < 10; ++i) {
Person value = new Person();
value.setName("John");
value.setAge(i + 25);
Cache<Object, Person> cache = cache(i % NUM_NODES);
Object key = new MagicKey(cache);
cache.put(key, value);
}
assertEquals(9, listener.results.size());
for (ObjectFilter.FilterResult r : listener.results) {
Person p = (Person) r.getInstance();
assertTrue(p.getAge() <= 31);
}
cache(0).removeListener(listener);
// ensure no more invocations after the listener was removed
listener.results.clear();
Person value = new Person();
value.setName("George");
value.setAge(30);
Object key = new MagicKey(cache(0));
cache(0).put(key, value);
assertEquals(0, listener.results.size());
}
public void testEventFilterAndConverter() {
QueryFactory qf = Search.getQueryFactory(cache(0));
Query query = qf.from(org.infinispan.query.test.Person.class)
.having("age").lte(31)
.select("name", "age")
.build();
EntryListener listener = new EntryListener();
for (int i = 0; i < 5; ++i) {
Person value = new Person();
value.setName("John");
value.setAge(i + 30);
Cache<Object, Person> cache = cache(i % NUM_NODES);
Object key = new MagicKey(cache);
cache.put(key, value);
}
// we want our cluster listener to be notified only if the entity matches our query
cache(0).addListener(listener, Search.makeFilter(query), null);
for (int i = 0; i < 10; ++i) {
Person value = new Person();
value.setName("John");
value.setAge(i + 25);
Cache<Object, Person> cache = cache(i % NUM_NODES);
Object key = new MagicKey(cache);
cache.put(key, value);
}
assertEquals(9, listener.results.size());
for (ObjectFilter.FilterResult r : listener.results) {
assertTrue((Integer) r.getProjection()[1] <= 31);
}
cache(0).removeListener(listener);
}
/**
* Using grouping and aggregation with event filters is not allowed.
*/
@Test(expectedExceptions = ParsingException.class, expectedExceptionsMessageRegExp = ".*ISPN028509:.*")
public void testDisallowGroupingAndAggregation() {
Query query = Search.getQueryFactory(cache(0)).from(Person.class)
.having("age").gte(20)
.select(max("age"))
.build();
cache(0).addListener(new EntryListener(), Search.makeFilter(query), null);
}
@Listener(clustered = true, includeCurrentState = true)
private static class EntryListener {
// this is where we accumulate matches
public final List<ObjectFilter.FilterResult> results = new ArrayList<>();
@CacheEntryCreated
public void handleEvent(CacheEntryCreatedEvent<?, ObjectFilter.FilterResult> event) {
if (!event.isPre()) {
ObjectFilter.FilterResult filterResult = event.getValue();
results.add(filterResult);
}
}
@CacheEntryModified
public void handleEvent(CacheEntryModifiedEvent<?, ObjectFilter.FilterResult> event) {
if (!event.isPre()) {
ObjectFilter.FilterResult filterResult = event.getValue();
results.add(filterResult);
}
}
}
}