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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.search.query.profile.config;
import com.yahoo.component.ComponentId;
import com.yahoo.component.ComponentSpecification;
import com.yahoo.config.subscription.ConfigSubscriber;
import com.yahoo.search.query.profile.DimensionValues;
import com.yahoo.search.query.profile.QueryProfile;
import com.yahoo.search.query.profile.QueryProfileRegistry;
import com.yahoo.search.query.profile.types.FieldDescription;
import com.yahoo.search.query.profile.types.FieldType;
import com.yahoo.search.query.profile.types.QueryProfileType;
import com.yahoo.search.query.profile.types.QueryProfileTypeRegistry;
import com.yahoo.text.BooleanParser;
import java.util.HashSet;
import java.util.Set;
/**
* @author bratseth
*/
public class QueryProfileConfigurer implements ConfigSubscriber.SingleSubscriber<QueryProfilesConfig> {
private final ConfigSubscriber subscriber = new ConfigSubscriber();
private volatile QueryProfileRegistry currentRegistry;
public QueryProfileConfigurer(String configId) {
subscriber.subscribe(this, QueryProfilesConfig.class, configId);
}
/** Returns the registry created by the last occurring call to configure */
public QueryProfileRegistry getCurrentRegistry() { return currentRegistry; }
private void setCurrentRegistry(QueryProfileRegistry registry) {
this.currentRegistry=registry;
}
public void configure(QueryProfilesConfig config) {
QueryProfileRegistry registry = createFromConfig(config);
setCurrentRegistry(registry);
}
public static QueryProfileRegistry createFromConfig(QueryProfilesConfig config) {
QueryProfileRegistry registry = new QueryProfileRegistry();
// Pass 1: Create all profiles and profile types
for (QueryProfilesConfig.Queryprofiletype profileTypeConfig : config.queryprofiletype()) {
createProfileType(profileTypeConfig, registry.getTypeRegistry());
}
for (QueryProfilesConfig.Queryprofile profileConfig : config.queryprofile()) {
createProfile(profileConfig, registry);
}
// Pass 2: Resolve references and add content
for (QueryProfilesConfig.Queryprofiletype profileTypeConfig : config.queryprofiletype()) {
fillProfileType(profileTypeConfig, registry.getTypeRegistry());
}
// To ensure topological sorting, using DPS. This will _NOT_ detect cycles
// (but it will not fail if they exist)
Set<ComponentId> filled = new HashSet<>();
for (QueryProfilesConfig.Queryprofile profileConfig : config.queryprofile()) {
fillProfile(profileConfig, config, registry, filled);
}
registry.freeze();
return registry;
}
/** Stop subscribing from this configurer */
public void shutdown() {
subscriber.close();
}
private static void createProfile(QueryProfilesConfig.Queryprofile config, QueryProfileRegistry registry) {
QueryProfile profile = new QueryProfile(new ComponentId(config.id()), config.id());
try {
String typeId = config.type();
if (typeId != null && ! typeId.isEmpty())
profile.setType(registry.getType(typeId));
if (config.dimensions().size()>0) {
String[] dimensions = new String[config.dimensions().size()];
for (int i = 0; i < config.dimensions().size(); i++)
dimensions[i] = config.dimensions().get(i);
profile.setDimensions(dimensions);
}
registry.register(profile);
}
catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Invalid " + profile, e);
}
}
private static void createProfileType(QueryProfilesConfig.Queryprofiletype config, QueryProfileTypeRegistry registry) {
QueryProfileType type = new QueryProfileType(config.id());
type.setStrict(config.strict());
type.setMatchAsPath(config.matchaspath());
registry.register(type);
}
private static void fillProfile(QueryProfilesConfig.Queryprofile config,
QueryProfilesConfig queryProfilesConfig,
QueryProfileRegistry registry,
Set<ComponentId> filled) {
QueryProfile profile = registry.getComponent(new ComponentSpecification(config.id()).toId());
if (filled.contains(profile.getId())) return;
filled.add(profile.getId());
try {
for (String inheritedId : config.inherit()) {
QueryProfile inherited = registry.getComponent(inheritedId);
if (inherited == null)
throw new IllegalArgumentException("Inherited query profile '" + inheritedId + "' in " + profile + " was not found");
fillProfile(inherited, queryProfilesConfig, registry, filled);
profile.addInherited(inherited);
}
for (QueryProfilesConfig.Queryprofile.Reference referenceConfig : config.reference()) {
QueryProfile referenced = registry.getComponent(referenceConfig.value());
if (referenced == null)
throw new IllegalArgumentException("Query profile '" + referenceConfig.value() + "' referenced as '" +
referenceConfig.name() + "' in " + profile + " was not found");
profile.set(referenceConfig.name(), referenced, registry);
if (referenceConfig.overridable() != null && !referenceConfig.overridable().isEmpty())
profile.setOverridable(referenceConfig.name(),
BooleanParser.parseBoolean(referenceConfig.overridable()),
DimensionValues.empty);
}
for (QueryProfilesConfig.Queryprofile.Property propertyConfig : config.property()) {
profile.set(propertyConfig.name(), propertyConfig.value(), registry);
if (propertyConfig.overridable() != null && ! propertyConfig.overridable().isEmpty())
profile.setOverridable(propertyConfig.name(),
BooleanParser.parseBoolean(propertyConfig.overridable()),
DimensionValues.empty);
}
for (QueryProfilesConfig.Queryprofile.Queryprofilevariant variantConfig : config.queryprofilevariant()) {
String[] forDimensionValueArray = new String[variantConfig.fordimensionvalues().size()];
for (int i = 0; i<variantConfig.fordimensionvalues().size(); i++) {
forDimensionValueArray[i] = variantConfig.fordimensionvalues().get(i).trim();
if ("*".equals(forDimensionValueArray[i]))
forDimensionValueArray[i] = null;
}
DimensionValues forDimensionValues = DimensionValues.createFrom(forDimensionValueArray);
for (String inheritedId : variantConfig.inherit()) {
QueryProfile inherited = registry.getComponent(inheritedId);
if (inherited == null)
throw new IllegalArgumentException("Inherited query profile '" + inheritedId + "' in " + profile +
" for '" + forDimensionValues + "' was not found");
fillProfile(inherited, queryProfilesConfig, registry, filled);
profile.addInherited(inherited, forDimensionValues);
}
for (QueryProfilesConfig.Queryprofile.Queryprofilevariant.Reference referenceConfig : variantConfig.reference()) {
QueryProfile referenced = registry.getComponent(referenceConfig.value());
if (referenced == null)
throw new IllegalArgumentException("Query profile '" + referenceConfig.value() + "' referenced as '" +
referenceConfig.name() + "' in " + profile +
" for '" + forDimensionValues + "' was not found");
profile.set(referenceConfig.name(), referenced, forDimensionValues, registry);
if ( ! referenceConfig.overridable().isEmpty())
profile.setOverridable(referenceConfig.name(),
Boolean.parseBoolean(referenceConfig.overridable()),
forDimensionValues);
}
for (QueryProfilesConfig.Queryprofile.Queryprofilevariant.Property propertyConfig : variantConfig.property()) {
profile.set(propertyConfig.name(), propertyConfig.value(), forDimensionValues, registry);
if ( ! propertyConfig.overridable().isEmpty())
profile.setOverridable(propertyConfig.name(),
Boolean.parseBoolean(propertyConfig.overridable()),
forDimensionValues);
}
}
}
catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Invalid " + profile, e);
}
}
/** Fill a given profile by locating its config */
private static void fillProfile(QueryProfile inherited,
QueryProfilesConfig queryProfilesConfig,
QueryProfileRegistry registry,
Set<ComponentId> visited) {
for (QueryProfilesConfig.Queryprofile inheritedConfig : queryProfilesConfig.queryprofile()) {
if (inherited.getId().stringValue().equals(inheritedConfig.id())) {
fillProfile(inheritedConfig, queryProfilesConfig, registry, visited);
}
}
}
private static void fillProfileType(QueryProfilesConfig.Queryprofiletype config, QueryProfileTypeRegistry registry) {
QueryProfileType type = registry.getComponent(new ComponentSpecification(config.id()).toId());
try {
for (String inheritedId : config.inherit()) {
QueryProfileType inherited = registry.getComponent(inheritedId);
if (inherited == null)
throw new IllegalArgumentException("Inherited query profile type '" + inheritedId + "' in " + type + " was not found");
else
type.inherited().add(inherited);
}
for (QueryProfilesConfig.Queryprofiletype.Field fieldConfig : config.field())
instantiateFieldDescription(fieldConfig,type,registry);
}
catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Invalid " + type,e);
}
}
private static void instantiateFieldDescription(QueryProfilesConfig.Queryprofiletype.Field fieldConfig,
QueryProfileType type,
QueryProfileTypeRegistry registry) {
try {
FieldType fieldType = FieldType.fromString(fieldConfig.type(), registry);
FieldDescription field = new FieldDescription(fieldConfig.name(),
fieldType,
fieldConfig.alias(),
fieldConfig.mandatory(),
fieldConfig.overridable()
);
type.addField(field, registry);
}
catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Invalid field '" + fieldConfig.name() + "' in " + type, e);
}
}
}
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