argos/dmp-backend/core/src/main/java/eu/eudat/elastic/query/DescriptionElasticQuery.java

package eu.eudat.elastic.query;
import co.elastic.clients.elasticsearch._types.query_dsl.Query;
import eu.eudat.authorization.AuthorizationFlags;
import eu.eudat.commons.enums.DescriptionStatus;
import eu.eudat.configurations.elastic.AppElasticProperties;
import eu.eudat.elastic.data.DescriptionElasticEntity;
import eu.eudat.service.elastic.ElasticService;
import gr.cite.tools.data.query.FieldResolver;
import gr.cite.tools.data.query.QueryFactory;
import gr.cite.tools.elastic.configuration.ElasticProperties;
import gr.cite.tools.elastic.mapper.FieldBasedMapper;
import gr.cite.tools.elastic.query.ElasticField;
import gr.cite.tools.elastic.query.ElasticNestedQuery;
import gr.cite.tools.elastic.query.ElasticQuery;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Scope;
import org.springframework.data.elasticsearch.client.elc.ElasticsearchTemplate;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.util.*;
import java.util.stream.Collectors;

@Component
//Like in C# make it Transient
@Scope(BeanDefinition.SCOPE_PROTOTYPE)
public class DescriptionElasticQuery extends ElasticQuery<DescriptionElasticEntity, UUID> {

	private Collection<UUID> ids;
	private Collection<DescriptionStatus> statuses;
	private EnumSet<AuthorizationFlags> authorize = EnumSet.of(AuthorizationFlags.None);

	public DescriptionElasticQuery ids(UUID value) {
		this.ids = List.of(value);
		return this;
	}

	public DescriptionElasticQuery ids(UUID... value) {
		this.ids = Arrays.asList(value);
		return this;
	}

	public DescriptionElasticQuery ids(Collection<UUID> values) {
		this.ids = values;
		return this;
	}
	
	public DescriptionElasticQuery statuses(DescriptionStatus value) {
		this.statuses = List.of(value);
		return this;
	}

	public DescriptionElasticQuery statuses(DescriptionStatus... value) {
		this.statuses = Arrays.asList(value);
		return this;
	}

	public DescriptionElasticQuery statuses(Collection<DescriptionStatus> values) {
		this.statuses = values;
		return this;
	}

	public DescriptionElasticQuery authorize(EnumSet<AuthorizationFlags> values) {
		this.authorize = values;
		return this;
	}

	private final QueryFactory queryFactory;
	private final AppElasticProperties appElasticProperties;
	private final ElasticService elasticService;
	@Autowired()
	public DescriptionElasticQuery(ElasticsearchTemplate elasticsearchTemplate, ElasticProperties elasticProperties, QueryFactory queryFactory, AppElasticProperties appElasticProperties, ElasticService elasticService) {
		super(elasticsearchTemplate, elasticProperties);
		this.queryFactory = queryFactory;
		this.appElasticProperties = appElasticProperties;
		this.elasticService = elasticService;
	}

	@Override
	protected Boolean isFalseQuery() {
		return this.isEmpty(this.ids) ||  this.isEmpty(this.statuses);
	}

	@Override
	protected Class<DescriptionElasticEntity> entityClass() {
		return DescriptionElasticEntity.class;
	}

	@Override
	protected Query applyFilters() {
		List<Query> predicates = new ArrayList<>();
		if (ids != null) {
			predicates.add(this.containsUUID(this.elasticFieldOf(DescriptionElasticEntity._id), ids)._toQuery());
		}
		if (statuses != null) {
			predicates.add(this.contains(this.elasticFieldOf(DescriptionElasticEntity._status), statuses.stream().map(x-> x.getValue()).collect(Collectors.toList()).toArray(new Short[statuses.size()]))._toQuery());
		}

		if (!predicates.isEmpty()) {
			return this.and(predicates);
		} else {
			return null;
		}
	}

	@Override
	public DescriptionElasticEntity convert(Map<String, Object> rawData, Set<String> columns) {
		DescriptionElasticEntity mocDoc = new DescriptionElasticEntity();
		if (columns.contains(DescriptionElasticEntity._id)) mocDoc.setId(FieldBasedMapper.shallowSafeConversion(rawData.get(DescriptionElasticEntity._id), UUID.class));
		if (columns.contains(DescriptionElasticEntity._label)) mocDoc.setLabel(FieldBasedMapper.shallowSafeConversion(rawData.get(DescriptionElasticEntity._label), String.class));
		if (columns.contains(DescriptionElasticEntity._description)) mocDoc.setDescription(FieldBasedMapper.shallowSafeConversion(rawData.get(DescriptionElasticEntity._description), String.class));
		if (columns.contains(DescriptionElasticEntity._status)) mocDoc.setStatus(FieldBasedMapper.shallowSafeConversion(rawData.get(DescriptionElasticEntity._status), DescriptionStatus.class));
		if (columns.contains(DescriptionElasticEntity._finalizedAt)) mocDoc.setFinalizedAt(FieldBasedMapper.shallowSafeConversion(rawData.get(DescriptionElasticEntity._finalizedAt), Date.class));
		mocDoc.setTags(this.convertNested(rawData, columns, this.queryFactory.query(NestedTagElasticQuery.class), DescriptionElasticEntity._tags, null));
		mocDoc.setReferences(this.convertNested(rawData, columns, this.queryFactory.query(NestedReferenceElasticQuery.class), DescriptionElasticEntity._references, null));
		mocDoc.setDescriptionTemplate(this.convertInnerObject(rawData, columns, this.queryFactory.query(InnerObjectDescriptionTemplateElasticQuery.class), DescriptionElasticEntity._descriptionTemplate, null));
		mocDoc.setDmp(this.convertInnerObject(rawData, columns, this.queryFactory.query(InnerObjectDmpElasticQuery.class), DescriptionElasticEntity._dmp, null));
		return mocDoc;
	}

	@Override
	protected ElasticField fieldNameOf(FieldResolver item) {
		if (item.match(DescriptionElasticEntity._id)) return this.elasticFieldOf(DescriptionElasticEntity._id);
		else if (item.match(DescriptionElasticEntity._label)) return this.elasticFieldOf(DescriptionElasticEntity._label);
		else if (item.match(DescriptionElasticEntity._description)) return this.elasticFieldOf(DescriptionElasticEntity._description);
		else if (item.match(DescriptionElasticEntity._status)) return this.elasticFieldOf(DescriptionElasticEntity._status);
		else if (item.match(DescriptionElasticEntity._finalizedAt)) return this.elasticFieldOf(DescriptionElasticEntity._finalizedAt);
		else if (item.prefix(DescriptionElasticEntity._references)) return this.queryFactory.query(NestedReferenceElasticQuery.class).nestedPath(DescriptionElasticEntity._references).fieldNameOf(this.extractPrefixed(item, DescriptionElasticEntity._references));
		else if (item.prefix(DescriptionElasticEntity._tags)) return this.queryFactory.query(NestedTagElasticQuery.class).nestedPath(DescriptionElasticEntity._tags).fieldNameOf(this.extractPrefixed(item, DescriptionElasticEntity._tags));
		else if (item.prefix(DescriptionElasticEntity._descriptionTemplate)) return this.queryFactory.query(InnerObjectDescriptionTemplateElasticQuery.class).innerPath(DescriptionElasticEntity._descriptionTemplate).fieldNameOf(this.extractPrefixed(item, DescriptionElasticEntity._description));
		else if (item.prefix(DescriptionElasticEntity._dmp)) return this.queryFactory.query(InnerObjectDmpElasticQuery.class).innerPath(DescriptionElasticEntity._dmp).fieldNameOf(this.extractPrefixed(item, DescriptionElasticEntity._dmp));
		else return null;
	}

	@Override
	protected String[] getIndex() {
		List<String> indexNames = new ArrayList<>();
		indexNames.add(this.appElasticProperties.getDescriptionIndexName());
		try {
			this.elasticService.ensureDescriptionIndex();
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		return indexNames.toArray(new String[indexNames.size()]);
	}

	@Override
	protected UUID toKey(String key) {
		return UUID.fromString(key);
	}

	@Override
	protected ElasticField getKeyField() {
		return this.elasticFieldOf(DescriptionElasticEntity._id);
	}

	@Override
	protected ElasticNestedQuery<?, ?, ?> nestedQueryOf(FieldResolver item) {
		if (item.prefix(DescriptionElasticEntity._references)) return this.queryFactory.query(NestedReferenceElasticQuery.class).nestedPath(DescriptionElasticEntity._references);
		else if (item.prefix(DescriptionElasticEntity._tags)) return this.queryFactory.query(NestedTagElasticQuery.class).nestedPath(DescriptionElasticEntity._tags);
		else return null;
	}
}