/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.ignite.spark;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.internal.util.typedef.F;
import org.apache.ignite.lang.IgniteOutClosure;
import org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi;
import org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.apache.spark.SparkConf;
import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.api.java.function.Function;
import org.apache.spark.api.java.function.Function2;
import org.apache.spark.api.java.function.PairFunction;
import org.apache.spark.sql.Column;
import org.apache.spark.sql.Dataset;
import org.apache.spark.sql.Row;
import scala.Tuple2;
/**
* Tests for {@link JavaIgniteRDD} (embedded mode).
*/
public class JavaEmbeddedIgniteRDDSelfTest extends GridCommonAbstractTest {
/** For Ignite instance names generation */
private static AtomicInteger cntr = new AtomicInteger(1);
/** Ignite instance names. */
private static ThreadLocal<Integer> igniteInstanceNames = new ThreadLocal<Integer>() {
@Override protected Integer initialValue() {
return cntr.getAndIncrement();
}
};
/** Grid count. */
private static final int GRID_CNT = 3;
/** Keys count. */
private static final int KEYS_CNT = 10000;
/** Cache name. */
private static final String PARTITIONED_CACHE_NAME = "partitioned";
/** Sum function. */
private static final Function2<Integer, Integer, Integer> SUM_F = new Function2<Integer, Integer, Integer>() {
public Integer call(Integer x, Integer y) {
return x + y;
}
};
/** To pair function. */
private static final PairFunction<Integer, String, String> TO_PAIR_F = new PairFunction<Integer, String, String>() {
/** {@inheritDoc} */
@Override public Tuple2<String, String> call(Integer i) {
return new Tuple2<>(String.valueOf(i), "val" + i);
}
};
/** (String, Integer); pair to Integer value function. */
private static final Function<Tuple2<String, Integer>, Integer> STR_INT_PAIR_TO_INT_F = new PairToValueFunction<>();
/** (String, Entity) pair to Entity value function. */
private static final Function<Tuple2<String, Entity>, Entity> STR_ENTITY_PAIR_TO_ENTITY_F =
new PairToValueFunction<>();
/** Integer to entity function. */
private static final PairFunction<Integer, String, Entity> INT_TO_ENTITY_F =
new PairFunction<Integer, String, Entity>() {
@Override public Tuple2<String, Entity> call(Integer i) throws Exception {
return new Tuple2<>(String.valueOf(i), new Entity(i, "name" + i, i * 100));
}
};
/**
* Default constructor.
*/
public JavaEmbeddedIgniteRDDSelfTest() {
super(false);
}
/** {@inheritDoc} */
@Override protected void afterTest() throws Exception {
stopAllGrids();
}
/**
* Creates default spark context
*
* @return Context.
*/
private JavaSparkContext createContext() {
SparkConf conf = new SparkConf();
conf.set("spark.executor.instances", String.valueOf(GRID_CNT));
return new JavaSparkContext("local[" + GRID_CNT + "]", "test", conf);
}
/**
* @throws Exception If failed.
*/
public void testStoreDataToIgnite() throws Exception {
JavaSparkContext sc = createContext();
JavaIgniteContext<String, String> ic = null;
try {
ic = new JavaIgniteContext<>(sc, new IgniteConfigProvider(), false);
ic.fromCache(PARTITIONED_CACHE_NAME)
.savePairs(sc.parallelize(F.range(0, KEYS_CNT), GRID_CNT).mapToPair(TO_PAIR_F), true);
Ignite ignite = ic.ignite();
IgniteCache<String, String> cache = ignite.cache(PARTITIONED_CACHE_NAME);
for (int i = 0; i < KEYS_CNT; i++) {
String val = cache.get(String.valueOf(i));
assertNotNull("Value was not put to cache for key: " + i, val);
assertEquals("Invalid value stored for key: " + i, "val" + i, val);
}
}
finally {
if (ic != null)
ic.close(true);
sc.stop();
}
}
/**
* @throws Exception If failed.
*/
public void testReadDataFromIgnite() throws Exception {
JavaSparkContext sc = createContext();
JavaIgniteContext<String, Integer> ic = null;
try {
ic = new JavaIgniteContext<>(sc, new IgniteConfigProvider(), false);
Ignite ignite = ic.ignite();
IgniteCache<String, Integer> cache = ignite.cache(PARTITIONED_CACHE_NAME);
for (int i = 0; i < KEYS_CNT; i++)
cache.put(String.valueOf(i), i);
JavaRDD<Integer> values = ic.fromCache(PARTITIONED_CACHE_NAME).map(STR_INT_PAIR_TO_INT_F);
int sum = values.fold(0, SUM_F);
int expSum = (KEYS_CNT * KEYS_CNT + KEYS_CNT) / 2 - KEYS_CNT;
assertEquals(expSum, sum);
}
finally {
if (ic != null)
ic.close(true);
sc.stop();
}
}
/**
* @throws Exception If failed.
*/
public void testQueryObjectsFromIgnite() throws Exception {
JavaSparkContext sc = createContext();
JavaIgniteContext<String, Entity> ic = null;
try {
ic = new JavaIgniteContext<>(sc, new IgniteConfigProvider(), false);
JavaIgniteRDD<String, Entity> cache = ic.fromCache(PARTITIONED_CACHE_NAME);
int cnt = 1001;
cache.savePairs(sc.parallelize(F.range(0, cnt), GRID_CNT).mapToPair(INT_TO_ENTITY_F), true);
List<Entity> res = cache.objectSql("Entity", "name = ? and salary = ?", "name50", 5000)
.map(STR_ENTITY_PAIR_TO_ENTITY_F).collect();
assertEquals("Invalid result length", 1, res.size());
assertEquals("Invalid result", 50, res.get(0).id());
assertEquals("Invalid result", "name50", res.get(0).name());
assertEquals("Invalid result", 5000, res.get(0).salary());
// Ignite ignite = ic.ignite();
// IgniteCache<Object, Object> underCache = ignite.cache(PARTITIONED_CACHE_NAME);
// assertEquals("Invalid total count", cnt, underCache.size());
assertEquals("Invalid count", 500, cache.objectSql("Entity", "id > 500").count());
}
finally {
if (ic != null)
ic.close(true);
sc.stop();
}
}
/**
* @throws Exception If failed.
*/
public void testQueryFieldsFromIgnite() throws Exception {
JavaSparkContext sc = createContext();
JavaIgniteContext<String, Entity> ic = null;
try {
ic = new JavaIgniteContext<>(sc, new IgniteConfigProvider(), false);
JavaIgniteRDD<String, Entity> cache = ic.fromCache(PARTITIONED_CACHE_NAME);
cache.savePairs(sc.parallelize(F.range(0, 1001), GRID_CNT).mapToPair(INT_TO_ENTITY_F), true);
Dataset<Row> df =
cache.sql("select id, name, salary from Entity where name = ? and salary = ?", "name50", 5000);
df.printSchema();
Row[] res = (Row[])df.collect();
assertEquals("Invalid result length", 1, res.length);
assertEquals("Invalid result", 50, res[0].get(0));
assertEquals("Invalid result", "name50", res[0].get(1));
assertEquals("Invalid result", 5000, res[0].get(2));
Column exp = new Column("NAME").equalTo("name50").and(new Column("SALARY").equalTo(5000));
Dataset<Row> df0 = cache.sql("select id, name, salary from Entity").where(exp);
df.printSchema();
Row[] res0 = (Row[])df0.collect();
assertEquals("Invalid result length", 1, res0.length);
assertEquals("Invalid result", 50, res0[0].get(0));
assertEquals("Invalid result", "name50", res0[0].get(1));
assertEquals("Invalid result", 5000, res0[0].get(2));
assertEquals("Invalid count", 500, cache.sql("select id from Entity where id > 500").count());
}
finally {
if (ic != null)
ic.close(true);
sc.stop();
}
}
/** Finder. */
private static TcpDiscoveryVmIpFinder FINDER = new TcpDiscoveryVmIpFinder(true);
/**
* @param igniteInstanceName Ignite instance name.
* @param client Client.
* @throws Exception If failed.
* @return Confiuration.
*/
private static IgniteConfiguration getConfiguration(String igniteInstanceName, boolean client) throws Exception {
IgniteConfiguration cfg = new IgniteConfiguration();
TcpDiscoverySpi discoSpi = new TcpDiscoverySpi();
discoSpi.setIpFinder(FINDER);
cfg.setDiscoverySpi(discoSpi);
cfg.setCacheConfiguration(cacheConfiguration());
cfg.setClientMode(client);
cfg.setIgniteInstanceName(igniteInstanceName);
return cfg;
}
/**
* Creates cache configuration.
*
* @return Cache configuration.
*/
private static CacheConfiguration<Object, Object> cacheConfiguration() {
CacheConfiguration<Object, Object> ccfg = new CacheConfiguration<>(DEFAULT_CACHE_NAME);
ccfg.setBackups(1);
ccfg.setName(PARTITIONED_CACHE_NAME);
ccfg.setIndexedTypes(String.class, Entity.class);
return ccfg;
}
/**
* Ignite configiration provider.
*/
static class IgniteConfigProvider implements IgniteOutClosure<IgniteConfiguration> {
/** {@inheritDoc} */
@Override public IgniteConfiguration apply() {
try {
return getConfiguration("worker-" + igniteInstanceNames.get(), false);
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
}
/**
* @param <K>
* @param <V>
*/
static class PairToValueFunction<K, V> implements Function<Tuple2<K, V>, V> {
/** {@inheritDoc} */
@Override public V call(Tuple2<K, V> t) throws Exception {
return t._2();
}
}
}