/*
* Copyright 2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* 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 "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.mongodb.core;
import java.util.concurrent.TimeUnit;
import org.bson.Document;
import org.springframework.core.convert.converter.Converter;
import org.springframework.data.mongodb.core.index.IndexDefinition;
import org.springframework.data.mongodb.core.index.IndexInfo;
import org.springframework.util.ObjectUtils;
import com.mongodb.client.model.Collation;
import com.mongodb.client.model.IndexOptions;
/**
* {@link Converter Converters} for index-related MongoDB documents/types.
*
* @author Mark Paluch
* @author Christoph Strobl
* @since 2.0
*/
abstract class IndexConverters {
private static final Converter<IndexDefinition, IndexOptions> DEFINITION_TO_MONGO_INDEX_OPTIONS;
private static final Converter<Document, IndexInfo> DOCUMENT_INDEX_INFO;
static {
DEFINITION_TO_MONGO_INDEX_OPTIONS = getIndexDefinitionIndexOptionsConverter();
DOCUMENT_INDEX_INFO = getDocumentIndexInfoConverter();
}
private IndexConverters() {
}
static Converter<IndexDefinition, IndexOptions> indexDefinitionToIndexOptionsConverter() {
return DEFINITION_TO_MONGO_INDEX_OPTIONS;
}
static Converter<Document, IndexInfo> documentToIndexInfoConverter() {
return DOCUMENT_INDEX_INFO;
}
private static Converter<IndexDefinition, IndexOptions> getIndexDefinitionIndexOptionsConverter() {
return indexDefinition -> {
Document indexOptions = indexDefinition.getIndexOptions();
IndexOptions ops = new IndexOptions();
if (indexOptions.containsKey("name")) {
ops = ops.name(indexOptions.get("name").toString());
}
if (indexOptions.containsKey("unique")) {
ops = ops.unique((Boolean) indexOptions.get("unique"));
}
if (indexOptions.containsKey("sparse")) {
ops = ops.sparse((Boolean) indexOptions.get("sparse"));
}
if (indexOptions.containsKey("background")) {
ops = ops.background((Boolean) indexOptions.get("background"));
}
if (indexOptions.containsKey("expireAfterSeconds")) {
ops = ops.expireAfter((Long) indexOptions.get("expireAfterSeconds"), TimeUnit.SECONDS);
}
if (indexOptions.containsKey("min")) {
ops = ops.min(((Number) indexOptions.get("min")).doubleValue());
}
if (indexOptions.containsKey("max")) {
ops = ops.max(((Number) indexOptions.get("max")).doubleValue());
}
if (indexOptions.containsKey("bits")) {
ops = ops.bits((Integer) indexOptions.get("bits"));
}
if (indexOptions.containsKey("bucketSize")) {
ops = ops.bucketSize(((Number) indexOptions.get("bucketSize")).doubleValue());
}
if (indexOptions.containsKey("default_language")) {
ops = ops.defaultLanguage(indexOptions.get("default_language").toString());
}
if (indexOptions.containsKey("language_override")) {
ops = ops.languageOverride(indexOptions.get("language_override").toString());
}
if (indexOptions.containsKey("weights")) {
ops = ops.weights((org.bson.Document) indexOptions.get("weights"));
}
for (String key : indexOptions.keySet()) {
if (ObjectUtils.nullSafeEquals("2dsphere", indexOptions.get(key))) {
ops = ops.sphereVersion(2);
}
}
if (indexOptions.containsKey("partialFilterExpression")) {
ops = ops.partialFilterExpression((org.bson.Document) indexOptions.get("partialFilterExpression"));
}
if (indexOptions.containsKey("collation")) {
ops = ops.collation(fromDocument(indexOptions.get("collation", Document.class)));
}
return ops;
};
}
public static Collation fromDocument(Document source) {
if (source == null) {
return null;
}
return org.springframework.data.mongodb.core.Collation.from(source).toMongoCollation();
}
private static Converter<Document, IndexInfo> getDocumentIndexInfoConverter() {
return IndexInfo::indexInfoOf;
}
}