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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.container.search.searchchain;
import com.yahoo.component.ComponentId;
import com.yahoo.component.ComponentSpecification;
import com.yahoo.component.chain.model.ChainSpecification;
import com.yahoo.component.chain.model.ChainedComponentModel;
import com.yahoo.prelude.fastsearch.DocumentdbInfoConfig;
import com.yahoo.prelude.cluster.QrMonitorConfig;
import com.yahoo.search.config.dispatchprototype.SearchNodesConfig;
import com.yahoo.vespa.config.search.DispatchConfig;
import com.yahoo.vespa.config.search.RankProfilesConfig;
import com.yahoo.vespa.config.search.AttributesConfig;
import com.yahoo.search.config.ClusterConfig;
import com.yahoo.search.searchchain.model.federation.FederationOptions;
import com.yahoo.search.searchchain.model.federation.LocalProviderSpec;
import com.yahoo.vespa.model.search.AbstractSearchCluster;
import com.yahoo.vespa.model.search.IndexedSearchCluster;
import com.yahoo.vespa.model.search.SearchNode;
import java.util.*;
/**
* Config producer for search chain responsible for sending queries to a local cluster.
*
* @author tonytv
*/
public class LocalProvider extends Provider implements
DocumentdbInfoConfig.Producer,
ClusterConfig.Producer,
AttributesConfig.Producer,
QrMonitorConfig.Producer,
RankProfilesConfig.Producer,
SearchNodesConfig.Producer,
DispatchConfig.Producer {
private final LocalProviderSpec providerSpec;
private volatile AbstractSearchCluster searchCluster;
@Override
public void getConfig(ClusterConfig.Builder builder) {
assert (searchCluster != null) : "Null search cluster!";
builder.clusterId(searchCluster.getClusterIndex());
builder.clusterName(searchCluster.getClusterName());
if (providerSpec.cacheSize != null)
builder.cacheSize(providerSpec.cacheSize);
if (searchCluster.getVisibilityDelay() != null)
builder.cacheTimeout(convertVisibilityDelay(searchCluster.getVisibilityDelay()));
}
@Override
public void getConfig(RankProfilesConfig.Builder builder) {
searchCluster.getConfig(builder);
}
@Override
public void getConfig(AttributesConfig.Builder builder) {
searchCluster.getConfig(builder);
}
@Override
public void getConfig(QrMonitorConfig.Builder builder) {
int requestTimeout = federationOptions().getTimeoutInMilliseconds();
if (requestTimeout != -1) {
builder.requesttimeout(requestTimeout);
}
}
@Override
public void getConfig(final SearchNodesConfig.Builder builder) {
if (!(searchCluster instanceof IndexedSearchCluster)) {
log.warning("Could not build SearchNodesConfig: Only supported for IndexedSearchCluster, got "
+ searchCluster.getClass().getCanonicalName());
return;
}
final IndexedSearchCluster indexedSearchCluster = (IndexedSearchCluster) searchCluster;
for (final SearchNode searchNode : indexedSearchCluster.getSearchNodes()) {
builder.search_node(
new SearchNodesConfig.Search_node.Builder()
.host(searchNode.getHostName())
.port(searchNode.getDispatchPort()));
}
}
private void addProviderSearchers(LocalProviderSpec providerSpec) {
for (ChainedComponentModel searcherModel : LocalProviderSpec.searcherModels) {
addInnerComponent(new Searcher<>(searcherModel));
}
}
@Override
public ChainSpecification getChainSpecification() {
ChainSpecification spec =
super.getChainSpecification();
return new ChainSpecification(spec.componentId, spec.inheritance, spec.phases(),
disableStemmingIfStreaming(spec.componentReferences));
}
//TODO: ugly, restructure this
private Set<ComponentSpecification> disableStemmingIfStreaming(Set<ComponentSpecification> searcherReferences) {
if (!searchCluster.isStreaming()) {
return searcherReferences;
} else {
Set<ComponentSpecification> filteredSearcherReferences = new LinkedHashSet<>(searcherReferences);
filteredSearcherReferences.remove(
toGlobalComponentId(
new ComponentId("com.yahoo.prelude.querytransform.StemmingSearcher")).
toSpecification());
return filteredSearcherReferences;
}
}
private ComponentId toGlobalComponentId(ComponentId searcherId) {
return searcherId.nestInNamespace(getComponentId());
}
public String getClusterName() {
return providerSpec.clusterName;
}
public void setSearchCluster(AbstractSearchCluster searchCluster) {
assert (this.searchCluster == null);
this.searchCluster = searchCluster;
}
public LocalProvider(ChainSpecification specWithoutInnerSearchers,
FederationOptions federationOptions,
LocalProviderSpec providerSpec) {
super(specWithoutInnerSearchers, federationOptions);
addProviderSearchers(providerSpec);
this.providerSpec = providerSpec;
}
@Override
public List<String> getDocumentTypes() {
List<String> documentTypes = new ArrayList<>();
for (AbstractSearchCluster.SearchDefinitionSpec spec : searchCluster.getLocalSDS()) {
documentTypes.add(spec.getSearchDefinition().getSearch().getDocument().getName());
}
return documentTypes;
}
@Override
public FederationOptions federationOptions() {
Double queryTimeoutInSeconds = searchCluster.getQueryTimeout();
return queryTimeoutInSeconds == null ?
super.federationOptions() :
super.federationOptions().inherit(
new FederationOptions().setTimeoutInMilliseconds((int) (queryTimeoutInSeconds * 1000)));
}
@Override
public void getConfig(DocumentdbInfoConfig.Builder builder) {
searchCluster.getConfig(builder);
}
/**
* For backward compatibility only, do not use.
*/
public void setCacheSize(Integer cacheSize) {
providerSpec.cacheSize = cacheSize;
}
// The semantics of visibility delay in search is deactivating caches if the
// delay is less than 1.0, in qrs the cache is deactivated if the delay is 0
// (or less). 1.0 seems a little arbitrary, so just doing the conversion
// here instead of having two totally independent implementations having to
// follow each other down in the modules.
private static Double convertVisibilityDelay(Double visibilityDelay) {
return (visibilityDelay < 1.0d) ? 0.0d : visibilityDelay;
}
@Override
public void getConfig(DispatchConfig.Builder builder) {
if (!(searchCluster instanceof IndexedSearchCluster)) {
log.warning("Could not build DispatchConfig: Only supported for IndexedSearchCluster, got "
+ searchCluster.getClass().getCanonicalName());
return;
}
((IndexedSearchCluster) searchCluster).getConfig(builder);
}
}
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