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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.builder.xml.dom.chains.search;
import com.yahoo.component.ComponentId;
import com.yahoo.component.ComponentSpecification;
import com.yahoo.config.model.builder.xml.XmlHelper;
import com.yahoo.config.model.deploy.DeployState;
import com.yahoo.search.searchchain.model.federation.FederationOptions;
import com.yahoo.search.searchchain.model.federation.FederationSearcherModel;
import com.yahoo.text.XML;
import com.yahoo.config.model.producer.AnyConfigProducer;
import com.yahoo.config.model.producer.TreeConfigProducer;
import com.yahoo.vespa.model.builder.xml.dom.DomComponentBuilder;
import com.yahoo.vespa.model.builder.xml.dom.VespaDomBuilder;
import com.yahoo.vespa.model.builder.xml.dom.chains.GenericChainedComponentModelBuilder;
import com.yahoo.vespa.model.container.component.Component;
import com.yahoo.vespa.model.container.search.searchchain.FederationSearcher;
import com.yahoo.vespa.model.container.search.searchchain.Searcher;
import org.w3c.dom.Element;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
/**
* Builds a federation searcher config producer from an element.
*
* @author Tony Vaagenes
*/
public class DomFederationSearcherBuilder extends VespaDomBuilder.DomConfigProducerBuilderBase<Searcher<?>> {
static class FederationSearcherModelBuilder extends GenericChainedComponentModelBuilder {
private final List<FederationSearcherModel.TargetSpec> sources;
private final boolean inheritDefaultSources;
FederationSearcherModelBuilder(Element searcherSpec) {
super(searcherSpec);
sources = readSources(searcherSpec);
inheritDefaultSources = readSourceSet(searcherSpec);
}
private boolean readSourceSet(Element searcherSpec) {
return XML.getChild(searcherSpec, "source-set") != null;
}
private List<FederationSearcherModel.TargetSpec> readSources(Element searcherSpec) {
List<FederationSearcherModel.TargetSpec> sources = new ArrayList<>();
for (Element source : XML.getChildren(searcherSpec, "source")) {
sources.add(readSource(source));
}
return sources;
}
private FederationSearcherModel.TargetSpec readSource(Element source) {
ComponentSpecification componentSpecification = XmlHelper.getIdRef(source);
FederationOptions federationOptions =
readFederationOptions(XML.getChild(source, FederationOptionsBuilder.federationOptionsElement));
return new FederationSearcherModel.TargetSpec(componentSpecification, federationOptions);
}
private FederationOptions readFederationOptions(Element federationOptionsElement) {
if (federationOptionsElement == null) {
return new FederationOptions();
} else {
return new FederationOptionsBuilder(federationOptionsElement).build();
}
}
protected FederationSearcherModel build() {
return new FederationSearcherModel(componentId, dependencies, sources, inheritDefaultSources);
}
}
@Override
protected FederationSearcher doBuild(DeployState deployState, TreeConfigProducer<AnyConfigProducer> ancestor, Element searcherElement) {
FederationSearcherModel model = new FederationSearcherModelBuilder(searcherElement).build();
Optional<Component> targetSelector = buildTargetSelector(deployState, ancestor, searcherElement, model.getComponentId());
return new FederationSearcher(model, targetSelector);
}
private Optional<Component> buildTargetSelector(DeployState deployState, TreeConfigProducer<AnyConfigProducer> ancestor, Element searcherElement, ComponentId namespace) {
Element targetSelectorElement = XML.getChild(searcherElement, "target-selector");
if (targetSelectorElement == null)
return Optional.empty();
return Optional.of(new DomComponentBuilder(namespace).build(deployState, ancestor, targetSelectorElement));
}
}
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