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| * * |
| * http://www.apache.org/licenses/LICENSE-2.0 * |
| * * |
| * Unless required by applicable law or agreed to in writing, * |
| * software distributed under the License is distributed on an * |
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| * specific language governing permissions and limitations * |
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| ****************************************************************/ |
| |
| package org.apache.james.mailbox.elasticsearch.query; |
| |
| import static org.elasticsearch.index.query.QueryBuilders.boolQuery; |
| import static org.elasticsearch.index.query.QueryBuilders.termsQuery; |
| import static org.elasticsearch.index.query.QueryBuilders.notQuery; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Optional; |
| |
| import javax.inject.Inject; |
| |
| import org.apache.james.mailbox.MailboxSession.User; |
| import org.apache.james.mailbox.elasticsearch.json.JsonMessageConstants; |
| import org.apache.james.mailbox.model.MailboxId; |
| import org.apache.james.mailbox.model.MultimailboxesSearchQuery; |
| import org.apache.james.mailbox.model.SearchQuery; |
| import org.elasticsearch.index.query.BoolQueryBuilder; |
| import org.elasticsearch.index.query.QueryBuilder; |
| |
| import com.github.steveash.guavate.Guavate; |
| import com.google.common.collect.ImmutableList; |
| |
| public class QueryConverter { |
| |
| |
| private final CriterionConverter criterionConverter; |
| |
| @Inject |
| public QueryConverter(CriterionConverter criterionConverter) { |
| this.criterionConverter = criterionConverter; |
| } |
| |
| public QueryBuilder from(List<User> users, MultimailboxesSearchQuery query) { |
| BoolQueryBuilder boolQueryBuilder = boolQuery() |
| .must(generateQueryBuilder(query.getSearchQuery())) |
| .filter(usersQuery(users)); |
| mailboxesQuery(query.getInMailboxes()).map(boolQueryBuilder::filter); |
| mailboxesQuery(query.getNotInMailboxes()).map(boolQueryBuilder::mustNot); |
| return boolQueryBuilder; |
| } |
| |
| private QueryBuilder generateQueryBuilder(SearchQuery searchQuery) { |
| List<SearchQuery.Criterion> criteria = searchQuery.getCriterias(); |
| if (criteria.isEmpty()) { |
| return criterionConverter.convertCriterion(SearchQuery.all()); |
| } else if (criteria.size() == 1) { |
| return criterionConverter.convertCriterion(criteria.get(0)); |
| } else { |
| return criterionConverter.convertCriterion(new SearchQuery.ConjunctionCriterion(SearchQuery.Conjunction.AND, criteria)); |
| } |
| } |
| |
| private QueryBuilder usersQuery(List<User> users) { |
| ImmutableList<String> usernames = users.stream() |
| .map(User::getUserName) |
| .collect(Guavate.toImmutableList()); |
| return termsQuery(JsonMessageConstants.USERS, usernames); |
| } |
| |
| private Optional<QueryBuilder> mailboxesQuery(Collection<MailboxId> mailboxIds) { |
| if (mailboxIds.isEmpty()) { |
| return Optional.empty(); |
| } |
| ImmutableList<String> ids = mailboxIds.stream() |
| .map(MailboxId::serialize) |
| .collect(Guavate.toImmutableList()); |
| return Optional.of(termsQuery(JsonMessageConstants.MAILBOX_ID, ids)); |
| } |
| |
| } |