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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.script;
import org.elasticsearch.common.settings.ClusterSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.query.IntervalFilterScript;
import org.elasticsearch.plugins.ScriptPlugin;
import org.elasticsearch.search.aggregations.pipeline.MovingFunctionScript;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Manages building {@link ScriptService}.
*/
public class ScriptModule {
public static final Set> RUNTIME_FIELDS_CONTEXTS = org.elasticsearch.core.Set.of(
BooleanFieldScript.CONTEXT,
DateFieldScript.CONTEXT,
DoubleFieldScript.CONTEXT,
LongFieldScript.CONTEXT,
StringFieldScript.CONTEXT,
GeoPointFieldScript.CONTEXT,
IpFieldScript.CONTEXT,
CompositeFieldScript.CONTEXT
);
public static final Map> CORE_CONTEXTS;
static {
CORE_CONTEXTS = Stream.concat(
Stream.of(
FieldScript.CONTEXT,
AggregationScript.CONTEXT,
ScoreScript.CONTEXT,
NumberSortScript.CONTEXT,
StringSortScript.CONTEXT,
TermsSetQueryScript.CONTEXT,
UpdateScript.CONTEXT,
BucketAggregationScript.CONTEXT,
BucketAggregationSelectorScript.CONTEXT,
SignificantTermsHeuristicScoreScript.CONTEXT,
IngestScript.CONTEXT,
IngestConditionalScript.CONTEXT,
FilterScript.CONTEXT,
SimilarityScript.CONTEXT,
SimilarityWeightScript.CONTEXT,
TemplateScript.CONTEXT,
TemplateScript.INGEST_CONTEXT,
MovingFunctionScript.CONTEXT,
ScriptedMetricAggContexts.InitScript.CONTEXT,
ScriptedMetricAggContexts.MapScript.CONTEXT,
ScriptedMetricAggContexts.CombineScript.CONTEXT,
ScriptedMetricAggContexts.ReduceScript.CONTEXT,
IntervalFilterScript.CONTEXT
),
RUNTIME_FIELDS_CONTEXTS.stream()
).collect(Collectors.toMap(c -> c.name, Function.identity()));
}
public final Map engines;
public final Map> contexts;
public ScriptModule(Settings settings, List scriptPlugins) {
Map engines = new HashMap<>();
Map> contexts = new HashMap<>(CORE_CONTEXTS);
for (ScriptPlugin plugin : scriptPlugins) {
for (ScriptContext context : plugin.getContexts()) {
ScriptContext oldContext = contexts.put(context.name, context);
if (oldContext != null) {
throw new IllegalArgumentException("Context name [" + context.name + "] defined twice");
}
}
}
for (ScriptPlugin plugin : scriptPlugins) {
ScriptEngine engine = plugin.getScriptEngine(settings, contexts.values());
if (engine != null) {
ScriptEngine existing = engines.put(engine.getType(), engine);
if (existing != null) {
throw new IllegalArgumentException(
"scripting language ["
+ engine.getType()
+ "] defined for engine ["
+ existing.getClass().getName()
+ "] and ["
+ engine.getClass().getName()
);
}
}
}
this.engines = Collections.unmodifiableMap(engines);
this.contexts = Collections.unmodifiableMap(contexts);
}
/**
* Allow the script service to register any settings update handlers on the cluster settings
*/
public void registerClusterSettingsListeners(ScriptService scriptService, ClusterSettings clusterSettings) {
scriptService.registerClusterSettingsListeners(clusterSettings);
}
}