mirror of https://github.com/apache/lucene.git
SOLR-10693: Add copyOfRange Stream Evaluator
This commit is contained in:
parent
0aea8cbc72
commit
59aa5d7515
|
@ -180,6 +180,7 @@ public class StreamHandler extends RequestHandlerBase implements SolrCoreAware,
|
||||||
.withFunctionName("scale", ScaleEvaluator.class)
|
.withFunctionName("scale", ScaleEvaluator.class)
|
||||||
.withFunctionName("distance", DistanceEvaluator.class)
|
.withFunctionName("distance", DistanceEvaluator.class)
|
||||||
.withFunctionName("copyOf", CopyOfEvaluator.class)
|
.withFunctionName("copyOf", CopyOfEvaluator.class)
|
||||||
|
.withFunctionName("copyOfRange", CopyOfRangeEvaluator.class)
|
||||||
.withFunctionName("percentile", PercentileEvaluator.class)
|
.withFunctionName("percentile", PercentileEvaluator.class)
|
||||||
.withFunctionName("empiricalDistribution", EmpiricalDistributionEvaluator.class)
|
.withFunctionName("empiricalDistribution", EmpiricalDistributionEvaluator.class)
|
||||||
|
|
||||||
|
|
|
@ -0,0 +1,85 @@
|
||||||
|
/*
|
||||||
|
* 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.solr.client.solrj.io.stream;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.util.ArrayList;
|
||||||
|
import java.util.Arrays;
|
||||||
|
import java.util.List;
|
||||||
|
|
||||||
|
import org.apache.solr.client.solrj.io.Tuple;
|
||||||
|
import org.apache.solr.client.solrj.io.eval.ComplexEvaluator;
|
||||||
|
import org.apache.solr.client.solrj.io.eval.StreamEvaluator;
|
||||||
|
import org.apache.solr.client.solrj.io.stream.expr.Explanation;
|
||||||
|
import org.apache.solr.client.solrj.io.stream.expr.Explanation.ExpressionType;
|
||||||
|
import org.apache.solr.client.solrj.io.stream.expr.Expressible;
|
||||||
|
import org.apache.solr.client.solrj.io.stream.expr.StreamExpression;
|
||||||
|
import org.apache.solr.client.solrj.io.stream.expr.StreamExpressionParameter;
|
||||||
|
import org.apache.solr.client.solrj.io.stream.expr.StreamFactory;
|
||||||
|
|
||||||
|
public class CopyOfRangeEvaluator extends ComplexEvaluator implements Expressible {
|
||||||
|
|
||||||
|
private static final long serialVersionUID = 1;
|
||||||
|
|
||||||
|
public CopyOfRangeEvaluator(StreamExpression expression, StreamFactory factory) throws IOException {
|
||||||
|
super(expression, factory);
|
||||||
|
}
|
||||||
|
|
||||||
|
public List<Number> evaluate(Tuple tuple) throws IOException {
|
||||||
|
StreamEvaluator colEval1 = subEvaluators.get(0);
|
||||||
|
|
||||||
|
List<Number> numbers1 = (List<Number>)colEval1.evaluate(tuple);
|
||||||
|
double[] vals = new double[numbers1.size()];
|
||||||
|
|
||||||
|
for(int i=0; i<vals.length; i++) {
|
||||||
|
vals[i] = numbers1.get(i).doubleValue();
|
||||||
|
}
|
||||||
|
|
||||||
|
StreamEvaluator startIndexEval = subEvaluators.get(1);
|
||||||
|
Number startIndexNum = (Number)startIndexEval.evaluate(tuple);
|
||||||
|
int startIndex = startIndexNum.intValue();
|
||||||
|
|
||||||
|
StreamEvaluator endIndexEval = subEvaluators.get(2);
|
||||||
|
Number endIndexNum = (Number)endIndexEval.evaluate(tuple);
|
||||||
|
int endIndex = endIndexNum.intValue();
|
||||||
|
|
||||||
|
vals = Arrays.copyOfRange(vals, startIndex, endIndex);
|
||||||
|
|
||||||
|
List<Number> copyOf = new ArrayList(vals.length);
|
||||||
|
|
||||||
|
for(int i=0; i<vals.length; i++) {
|
||||||
|
copyOf.add(vals[i]);
|
||||||
|
}
|
||||||
|
|
||||||
|
return copyOf;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public StreamExpressionParameter toExpression(StreamFactory factory) throws IOException {
|
||||||
|
StreamExpression expression = new StreamExpression(factory.getFunctionName(getClass()));
|
||||||
|
return expression;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Explanation toExplanation(StreamFactory factory) throws IOException {
|
||||||
|
return new Explanation(nodeId.toString())
|
||||||
|
.withExpressionType(ExpressionType.EVALUATOR)
|
||||||
|
.withFunctionName(factory.getFunctionName(getClass()))
|
||||||
|
.withImplementingClass(getClass().getName())
|
||||||
|
.withExpression(toExpression(factory).toString());
|
||||||
|
}
|
||||||
|
}
|
|
@ -5508,6 +5508,54 @@ public class StreamExpressionTest extends SolrCloudTestCase {
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
public void testCopyOfRange() throws Exception {
|
||||||
|
UpdateRequest updateRequest = new UpdateRequest();
|
||||||
|
|
||||||
|
int i=0;
|
||||||
|
while(i<50) {
|
||||||
|
updateRequest.add(id, "id_"+(++i),"test_dt", getDateString("2016", "5", "1"), "price_f", "400.00");
|
||||||
|
}
|
||||||
|
|
||||||
|
while(i<100) {
|
||||||
|
updateRequest.add(id, "id_"+(++i),"test_dt", getDateString("2015", "5", "1"), "price_f", "300.0");
|
||||||
|
}
|
||||||
|
|
||||||
|
while(i<150) {
|
||||||
|
updateRequest.add(id, "id_"+(++i),"test_dt", getDateString("2014", "5", "1"), "price_f", "500.0");
|
||||||
|
}
|
||||||
|
|
||||||
|
while(i<250) {
|
||||||
|
updateRequest.add(id, "id_"+(++i),"test_dt", getDateString("2013", "5", "1"), "price_f", "100.00");
|
||||||
|
}
|
||||||
|
|
||||||
|
updateRequest.commit(cluster.getSolrClient(), COLLECTIONORALIAS);
|
||||||
|
|
||||||
|
String expr = "timeseries("+COLLECTIONORALIAS+", q=\"*:*\", start=\"2013-01-01T01:00:00.000Z\", " +
|
||||||
|
"end=\"2016-12-01T01:00:00.000Z\", " +
|
||||||
|
"gap=\"+1YEAR\", " +
|
||||||
|
"field=\"test_dt\", " +
|
||||||
|
"count(*), sum(price_f), max(price_f), min(price_f))";
|
||||||
|
|
||||||
|
String cexpr = "let(a="+expr+", c=col(a, max(price_f)), tuple(copy=copyOfRange(c, 1, 3)))";
|
||||||
|
|
||||||
|
ModifiableSolrParams paramsLoc = new ModifiableSolrParams();
|
||||||
|
paramsLoc.set("expr", cexpr);
|
||||||
|
paramsLoc.set("qt", "/stream");
|
||||||
|
|
||||||
|
String url = cluster.getJettySolrRunners().get(0).getBaseUrl().toString()+"/"+COLLECTIONORALIAS;
|
||||||
|
TupleStream solrStream = new SolrStream(url, paramsLoc);
|
||||||
|
|
||||||
|
StreamContext context = new StreamContext();
|
||||||
|
solrStream.setStreamContext(context);
|
||||||
|
List<Tuple> tuples = getTuples(solrStream);
|
||||||
|
assertTrue(tuples.size() == 1);
|
||||||
|
List<Number> copy1 = (List<Number>)tuples.get(0).get("copy");
|
||||||
|
assertTrue(copy1.size() == 2);
|
||||||
|
assertTrue(copy1.get(0).doubleValue() == 500D);
|
||||||
|
assertTrue(copy1.get(1).doubleValue() == 300D);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void testPercentiles() throws Exception {
|
public void testPercentiles() throws Exception {
|
||||||
UpdateRequest updateRequest = new UpdateRequest();
|
UpdateRequest updateRequest = new UpdateRequest();
|
||||||
|
|
Loading…
Reference in New Issue