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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.search.aggregations.metrics.scripted;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.common.io.stream.Writeable.Reader;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.script.MockScriptEngine;
import org.elasticsearch.script.Script;
import org.elasticsearch.script.ScriptContext;
import org.elasticsearch.script.ScriptEngine;
import org.elasticsearch.script.ScriptModule;
import org.elasticsearch.script.ScriptService;
import org.elasticsearch.script.ScriptType;
import org.elasticsearch.search.aggregations.ParsedAggregation;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import org.elasticsearch.test.InternalAggregationTestCase;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.function.Supplier;
public class InternalScriptedMetricTests extends InternalAggregationTestCase<InternalScriptedMetric> {
private static final String REDUCE_SCRIPT_NAME = "reduceScript";
private boolean hasReduceScript;
private Supplier<Object>[] valueTypes;
private final Supplier<Object>[] leafValueSuppliers = new Supplier[] { () -> randomInt(), () -> randomLong(), () -> randomDouble(),
() -> randomFloat(), () -> randomBoolean(), () -> randomAlphaOfLength(5), () -> new GeoPoint(randomDouble(), randomDouble()),
() -> null };
private final Supplier<Object>[] nestedValueSuppliers = new Supplier[] { () -> new HashMap<String, Object>(),
() -> new ArrayList<>() };
@Override
public void setUp() throws Exception {
super.setUp();
hasReduceScript = randomBoolean();
// we want the same value types (also for nested lists, maps) for all random aggregations
int levels = randomIntBetween(1, 3);
valueTypes = new Supplier[levels];
for (int i = 0; i < levels; i++) {
if (i < levels - 1) {
valueTypes[i] = randomFrom(nestedValueSuppliers);
} else {
// the last one needs to be a leaf value, not map or list
valueTypes[i] = randomFrom(leafValueSuppliers);
}
}
}
@Override
protected InternalScriptedMetric createTestInstance(String name, List<PipelineAggregator> pipelineAggregators,
Map<String, Object> metaData) {
Map<String, Object> params = new HashMap<>();
if (randomBoolean()) {
params.put(randomAlphaOfLength(5), randomAlphaOfLength(5));
}
Script reduceScript = null;
if (hasReduceScript) {
reduceScript = new Script(ScriptType.INLINE, MockScriptEngine.NAME, REDUCE_SCRIPT_NAME, params);
}
Object randomValue = randomValue(valueTypes, 0);
return new InternalScriptedMetric(name, randomValue, reduceScript, pipelineAggregators, metaData);
}
@SuppressWarnings("unchecked")
private static Object randomValue(Supplier<Object>[] valueTypes, int level) {
Object value = valueTypes[level].get();
if (value instanceof Map) {
int elements = randomIntBetween(1, 5);
Map<String, Object> map = (Map<String, Object>) value;
for (int i = 0; i < elements; i++) {
map.put(randomAlphaOfLength(5), randomValue(valueTypes, level + 1));
}
} else if (value instanceof List) {
int elements = randomIntBetween(1,5);
List<Object> list = (List<Object>) value;
for (int i = 0; i < elements; i++) {
list.add(randomValue(valueTypes, level + 1));
}
}
return value;
}
/**
* Mock of the script service. The script that is run looks at the
* "_aggs" parameter visible when executing the script and simply returns the count.
* This should be equal to the number of input InternalScriptedMetrics that are reduced
* in total.
*/
@Override
protected ScriptService mockScriptService() {
// mock script always retuns the size of the input aggs list as result
@SuppressWarnings("unchecked")
MockScriptEngine scriptEngine = new MockScriptEngine(MockScriptEngine.NAME,
Collections.singletonMap(REDUCE_SCRIPT_NAME, script -> ((List<Object>) script.get("_aggs")).size()));
Map<String, ScriptEngine> engines = Collections.singletonMap(scriptEngine.getType(), scriptEngine);
return new ScriptService(Settings.EMPTY, engines, ScriptModule.CORE_CONTEXTS);
}
@Override
protected void assertReduced(InternalScriptedMetric reduced, List<InternalScriptedMetric> inputs) {
InternalScriptedMetric firstAgg = inputs.get(0);
assertEquals(firstAgg.getName(), reduced.getName());
assertEquals(firstAgg.pipelineAggregators(), reduced.pipelineAggregators());
assertEquals(firstAgg.getMetaData(), reduced.getMetaData());
if (hasReduceScript) {
assertEquals(inputs.size(), reduced.aggregation());
} else {
assertEquals(inputs.size(), ((List<Object>) reduced.aggregation()).size());
}
}
@Override
protected Reader<InternalScriptedMetric> instanceReader() {
return InternalScriptedMetric::new;
}
@Override
protected void assertFromXContent(InternalScriptedMetric aggregation, ParsedAggregation parsedAggregation) {
assertTrue(parsedAggregation instanceof ParsedScriptedMetric);
ParsedScriptedMetric parsed = (ParsedScriptedMetric) parsedAggregation;
assertValues(aggregation.aggregation(), parsed.aggregation());
}
private static void assertValues(Object expected, Object actual) {
if (expected instanceof Long) {
// longs that fit into the integer range are parsed back as integer
if (actual instanceof Integer) {
assertEquals(((Long) expected).intValue(), actual);
} else {
assertEquals(expected, actual);
}
} else if (expected instanceof Float) {
// based on the xContent type, floats are sometimes parsed back as doubles
if (actual instanceof Double) {
assertEquals(expected, ((Double) actual).floatValue());
} else {
assertEquals(expected, actual);
}
} else if (expected instanceof GeoPoint) {
assertTrue(actual instanceof Map);
GeoPoint point = (GeoPoint) expected;
Map<String, Object> pointMap = (Map<String, Object>) actual;
assertEquals(point.getLat(), pointMap.get("lat"));
assertEquals(point.getLon(), pointMap.get("lon"));
} else if (expected instanceof Map) {
Map<String, Object> expectedMap = (Map<String, Object>) expected;
Map<String, Object> actualMap = (Map<String, Object>) actual;
assertEquals(expectedMap.size(), actualMap.size());
for (String key : expectedMap.keySet()) {
assertValues(expectedMap.get(key), actualMap.get(key));
}
} else if (expected instanceof List) {
List<Object> expectedList = (List<Object>) expected;
List<Object> actualList = (List<Object>) actual;
assertEquals(expectedList.size(), actualList.size());
Iterator<Object> actualIterator = actualList.iterator();
for (Object element : expectedList) {
assertValues(element, actualIterator.next());
}
} else {
assertEquals(expected, actual);
}
}
}
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