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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;
import org.elasticsearch.Version;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.Writeable.Reader;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentParser.Token;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.search.aggregations.InternalOrder.CompoundOrder;
import org.elasticsearch.test.AbstractSerializingTestCase;
import org.elasticsearch.test.VersionUtils;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class InternalOrderTests extends AbstractSerializingTestCase<BucketOrder> {
@Override
protected BucketOrder createTestInstance() {
if (randomBoolean()) {
return getRandomOrder();
} else {
List<BucketOrder> orders = new ArrayList<>();
for (int i = 0; i < randomInt(3); i++) {
orders.add(getRandomOrder());
}
return BucketOrder.compound(orders);
}
}
private BucketOrder getRandomOrder() {
switch(randomInt(2)) {
case 0: return BucketOrder.key(randomBoolean());
case 1: return BucketOrder.count(randomBoolean());
default: return BucketOrder.aggregation(randomAlphaOfLength(10), randomBoolean());
}
}
@Override
protected Reader<BucketOrder> instanceReader() {
return InternalOrder.Streams::readOrder;
}
@Override
protected BucketOrder doParseInstance(XContentParser parser) throws IOException {
Token token = parser.nextToken();
if (token == Token.START_OBJECT) {
return InternalOrder.Parser.parseOrderParam(parser);
}
if (token == Token.START_ARRAY) {
List<BucketOrder> orders = new ArrayList<>();
while (parser.nextToken() == Token.START_OBJECT) {
orders.add(InternalOrder.Parser.parseOrderParam(parser));
}
return BucketOrder.compound(orders);
}
return null;
}
@Override
protected BucketOrder assertSerialization(BucketOrder testInstance) throws IOException {
// identical behavior to AbstractWireSerializingTestCase, except assertNotSame is only called for
// compound and aggregation order because _key and _count orders are static instances.
BucketOrder deserializedInstance = copyInstance(testInstance);
assertEquals(testInstance, deserializedInstance);
assertEquals(testInstance.hashCode(), deserializedInstance.hashCode());
if(testInstance instanceof CompoundOrder || testInstance instanceof InternalOrder.Aggregation) {
assertNotSame(testInstance, deserializedInstance);
}
return deserializedInstance;
}
@Override
protected void assertParsedInstance(XContentType xContentType, BytesReference instanceAsBytes, BucketOrder expectedInstance)
throws IOException {
// identical behavior to AbstractSerializingTestCase, except assertNotSame is only called for
// compound and aggregation order because _key and _count orders are static instances.
XContentParser parser = createParser(XContentFactory.xContent(xContentType), instanceAsBytes);
BucketOrder newInstance = parseInstance(parser);
assertEquals(expectedInstance, newInstance);
assertEquals(expectedInstance.hashCode(), newInstance.hashCode());
if(expectedInstance instanceof CompoundOrder || expectedInstance instanceof InternalOrder.Aggregation) {
assertNotSame(newInstance, expectedInstance);
}
}
public void testHistogramOrderBwc() throws IOException {
for (int runs = 0; runs < NUMBER_OF_TEST_RUNS; runs++) {
BucketOrder order = createTestInstance();
Version bwcVersion = VersionUtils.randomVersionBetween(random(), VersionUtils.getFirstVersion(),
VersionUtils.getPreviousVersion(Version.V_6_0_0_alpha2));
boolean bwcOrderFlag = randomBoolean();
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.setVersion(bwcVersion);
InternalOrder.Streams.writeHistogramOrder(order, out, bwcOrderFlag);
try (StreamInput in = out.bytes().streamInput()) {
in.setVersion(bwcVersion);
BucketOrder actual = InternalOrder.Streams.readHistogramOrder(in, bwcOrderFlag);
BucketOrder expected = order;
if (order instanceof CompoundOrder) {
expected = ((CompoundOrder) order).orderElements.get(0);
}
assertEquals(expected, actual);
}
}
}
}
public void testAggregationOrderEqualsAndHashCode() {
String path = randomAlphaOfLength(10);
boolean asc = randomBoolean();
BucketOrder o1 = BucketOrder.aggregation(path, asc);
BucketOrder o2 = BucketOrder.aggregation(path + "test", asc);
BucketOrder o3 = BucketOrder.aggregation(path, !asc);
BucketOrder o4 = BucketOrder.aggregation(path, asc);
assertNotEquals(o1, o2);
assertNotEquals(o1.hashCode(), o2.hashCode());
assertNotEquals(o1, o3);
assertNotEquals(o1.hashCode(), o3.hashCode());
assertEquals(o1, o4);
assertEquals(o1.hashCode(), o4.hashCode());
o1 = InternalOrder.compound(o1);
o2 = InternalOrder.compound(o2);
o3 = InternalOrder.compound(o3);
assertNotEquals(o1, o2);
assertNotEquals(o1.hashCode(), o2.hashCode());
assertNotEquals(o1, o2);
assertNotEquals(o1.hashCode(), o2.hashCode());
assertNotEquals(o1, o3);
assertNotEquals(o1.hashCode(), o3.hashCode());
assertNotEquals(o1, o4);
assertNotEquals(o1.hashCode(), o4.hashCode());
}
}
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