Migrate scripted metric aggregation scripts to ScriptContext design #30111
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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. | ||
| */ | ||
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| package org.elasticsearch.painless; | ||
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| import org.elasticsearch.painless.spi.Whitelist; | ||
| import org.elasticsearch.script.MetricAggScripts; | ||
| import org.elasticsearch.script.ScriptContext; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| public class MetricAggScriptsTests extends ScriptTestCase { | ||
| @Override | ||
| protected Map<ScriptContext<?>, List<Whitelist>> scriptContexts() { | ||
| Map<ScriptContext<?>, List<Whitelist>> contexts = new HashMap<>(); | ||
| contexts.put(MetricAggScripts.InitScript.CONTEXT, Whitelist.BASE_WHITELISTS); | ||
| contexts.put(MetricAggScripts.MapScript.CONTEXT, Whitelist.BASE_WHITELISTS); | ||
| contexts.put(MetricAggScripts.CombineScript.CONTEXT, Whitelist.BASE_WHITELISTS); | ||
| contexts.put(MetricAggScripts.ReduceScript.CONTEXT, Whitelist.BASE_WHITELISTS); | ||
| return contexts; | ||
| } | ||
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| public void testInitBasic() { | ||
| MetricAggScripts.InitScript.Factory factory = scriptEngine.compile("test", | ||
| "agg.testField = params.initialVal", MetricAggScripts.InitScript.CONTEXT, Collections.emptyMap()); | ||
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| Map<String, Object> params = new HashMap<>(); | ||
| Map<String, Object> agg = new HashMap<>(); | ||
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| params.put("initialVal", 10); | ||
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| MetricAggScripts.InitScript script = factory.newInstance(params, agg); | ||
| script.execute(); | ||
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| assert(agg.containsKey("testField")); | ||
| assertEquals(10, agg.get("testField")); | ||
| } | ||
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| public void testMapBasic() { | ||
| MetricAggScripts.MapScript.Factory factory = scriptEngine.compile("test", | ||
| "agg.testField = 2*_score", MetricAggScripts.MapScript.CONTEXT, Collections.emptyMap()); | ||
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| Map<String, Object> params = new HashMap<>(); | ||
| Map<String, Object> agg = new HashMap<>(); | ||
| double _score = 0.5; | ||
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| MetricAggScripts.MapScript.LeafFactory leafFactory = factory.newFactory(params, agg, null); | ||
| MetricAggScripts.MapScript script = leafFactory.newInstance(null); | ||
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| script.execute(_score); | ||
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| assert(agg.containsKey("testField")); | ||
| assertEquals(1.0, agg.get("testField")); | ||
| } | ||
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| public void testCombineBasic() { | ||
| MetricAggScripts.CombineScript.Factory factory = scriptEngine.compile("test", | ||
| "agg.testField = params.initialVal; return agg.testField + params.inc", MetricAggScripts.CombineScript.CONTEXT, | ||
| Collections.emptyMap()); | ||
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| Map<String, Object> params = new HashMap<>(); | ||
| Map<String, Object> agg = new HashMap<>(); | ||
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| params.put("initialVal", 10); | ||
| params.put("inc", 2); | ||
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| MetricAggScripts.CombineScript script = factory.newInstance(params, agg); | ||
| Object res = script.execute(); | ||
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| assert(agg.containsKey("testField")); | ||
| assertEquals(10, agg.get("testField")); | ||
| assertEquals(12, res); | ||
| } | ||
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| public void testReduceBasic() { | ||
| MetricAggScripts.ReduceScript.Factory factory = scriptEngine.compile("test", | ||
| "aggs[0].testField + aggs[1].testField", MetricAggScripts.ReduceScript.CONTEXT, Collections.emptyMap()); | ||
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| Map<String, Object> params = new HashMap<>(); | ||
| List<Object> aggs = new ArrayList<>(); | ||
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| Map<String, Object> agg1 = new HashMap<>(), agg2 = new HashMap<>(); | ||
| agg1.put("testField", 1); | ||
| agg2.put("testField", 2); | ||
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| aggs.add(agg1); | ||
| aggs.add(agg2); | ||
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| MetricAggScripts.ReduceScript script = factory.newInstance(params, aggs); | ||
| Object res = script.execute(); | ||
| assertEquals(3, res); | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.elasticsearch.script; | ||
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| import org.apache.lucene.index.LeafReaderContext; | ||
| import org.elasticsearch.index.fielddata.ScriptDocValues; | ||
| import org.elasticsearch.search.lookup.LeafSearchLookup; | ||
| import org.elasticsearch.search.lookup.SearchLookup; | ||
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| import java.util.List; | ||
| import java.util.Map; | ||
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| public class MetricAggScripts { | ||
|
There was a problem hiding this comment. Can we call this There was a problem hiding this comment. Absolutely -- that is much clearer. I will make that change ASAP. |
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| private abstract static class ParamsAndAggBase { | ||
| private final Map<String, Object> params; | ||
| private final Object agg; | ||
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| ParamsAndAggBase(Map<String, Object> params, Object agg) { | ||
| this.params = params; | ||
| this.agg = agg; | ||
| } | ||
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| public Map<String, Object> getParams() { | ||
| return params; | ||
| } | ||
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| public Object getAgg() { | ||
|
There was a problem hiding this comment. Is there any reason that agg should be provided via execute() parameter instead of via an accessor like this? |
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| return agg; | ||
| } | ||
| } | ||
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| public abstract static class InitScript extends ParamsAndAggBase { | ||
| public InitScript(Map<String, Object> params, Object agg) { | ||
| super(params, agg); | ||
| } | ||
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| public abstract void execute(); | ||
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| public interface Factory { | ||
| InitScript newInstance(Map<String, Object> params, Object agg); | ||
| } | ||
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| public static String[] PARAMETERS = {}; | ||
| public static ScriptContext<Factory> CONTEXT = new ScriptContext<>("aggs_init", Factory.class); | ||
| } | ||
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| public abstract static class MapScript extends ParamsAndAggBase { | ||
| private final LeafSearchLookup leafLookup; | ||
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| public MapScript(Map<String, Object> params, Object agg, SearchLookup lookup, LeafReaderContext leafContext) { | ||
| super(params, agg); | ||
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| this.leafLookup = leafContext == null ? null : lookup.getLeafSearchLookup(leafContext); | ||
| } | ||
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| // Return the doc as a map (instead of LeafDocLookup) in order to abide by type whitelisting rules for | ||
| // Painless scripts. | ||
| public Map<String, ScriptDocValues<?>> getDoc() { | ||
| return leafLookup == null ? null : leafLookup.doc(); | ||
| } | ||
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| public void setDocument(int docId) { | ||
| if (leafLookup != null) { | ||
| leafLookup.setDocument(docId); | ||
| } | ||
| } | ||
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| public abstract void execute(double _score); | ||
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| public interface LeafFactory { | ||
| MapScript newInstance(LeafReaderContext ctx); | ||
| } | ||
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| public interface Factory { | ||
| LeafFactory newFactory(Map<String, Object> params, Object agg, SearchLookup lookup); | ||
| } | ||
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| public static String[] PARAMETERS = new String[] {"_score"}; | ||
| public static ScriptContext<Factory> CONTEXT = new ScriptContext<>("aggs_map", Factory.class); | ||
| } | ||
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| public abstract static class CombineScript extends ParamsAndAggBase { | ||
| public CombineScript(Map<String, Object> params, Object agg) { | ||
| super(params, agg); | ||
| } | ||
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| public abstract Object execute(); | ||
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| public interface Factory { | ||
| CombineScript newInstance(Map<String, Object> params, Object agg); | ||
| } | ||
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| public static String[] PARAMETERS = {}; | ||
| public static ScriptContext<Factory> CONTEXT = new ScriptContext<>("aggs_combine", Factory.class); | ||
| } | ||
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| public abstract static class ReduceScript { | ||
| private final Map<String, Object> params; | ||
| private final List<Object> aggs; | ||
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| public ReduceScript(Map<String, Object> params, List<Object> aggs) { | ||
| this.params = params; | ||
| this.aggs = aggs; | ||
| } | ||
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| public Map<String, Object> getParams() { | ||
| return params; | ||
| } | ||
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| public List<Object> getAggs() { | ||
| return aggs; | ||
| } | ||
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| public abstract Object execute(); | ||
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| public interface Factory { | ||
| ReduceScript newInstance(Map<String, Object> params, List<Object> aggs); | ||
| } | ||
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| public static String[] PARAMETERS = {}; | ||
| public static ScriptContext<Factory> CONTEXT = new ScriptContext<>("aggs_reduce", Factory.class); | ||
| } | ||
| } | ||
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I added these tests just for convenient sanity checking that the new contexts were working. But perhaps they're redundant with more general Painless tests of script parameter access functionality.