/*
* Copyright 2002-2014 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.repository.query;
import org.springframework.data.mapping.context.MappingContext;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
import org.springframework.data.mongodb.core.query.BasicQuery;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.TextCriteria;
import org.springframework.data.repository.query.QueryMethod;
import org.springframework.data.repository.query.RepositoryQuery;
import org.springframework.data.repository.query.parser.PartTree;
import org.springframework.util.StringUtils;
import com.mongodb.util.JSONParseException;
/**
* {@link RepositoryQuery} implementation for Mongo.
*
* @author Oliver Gierke
* @author Christoph Strobl
*/
public class PartTreeMongoQuery extends AbstractMongoQuery {
private final PartTree tree;
private final boolean isGeoNearQuery;
private final MappingContext<?, MongoPersistentProperty> context;
/**
* Creates a new {@link PartTreeMongoQuery} from the given {@link QueryMethod} and {@link MongoTemplate}.
*
* @param method must not be {@literal null}.
* @param template must not be {@literal null}.
*/
public PartTreeMongoQuery(MongoQueryMethod method, MongoOperations mongoOperations) {
super(method, mongoOperations);
this.tree = new PartTree(method.getName(), method.getEntityInformation().getJavaType());
this.isGeoNearQuery = method.isGeoNearQuery();
this.context = mongoOperations.getConverter().getMappingContext();
}
/**
* Return the {@link PartTree} backing the query.
*
* @return the tree
*/
public PartTree getTree() {
return tree;
}
/*
* (non-Javadoc)
* @see org.springframework.data.mongodb.repository.query.AbstractMongoQuery#createQuery(org.springframework.data.mongodb.repository.query.ConvertingParameterAccessor, boolean)
*/
@Override
protected Query createQuery(ConvertingParameterAccessor accessor) {
MongoQueryCreator creator = new MongoQueryCreator(tree, accessor, context, isGeoNearQuery);
Query query = creator.createQuery();
if (tree.isLimiting()) {
query.limit(tree.getMaxResults());
}
TextCriteria textCriteria = accessor.getFullText();
if (textCriteria != null) {
query.addCriteria(textCriteria);
}
String fieldSpec = this.getQueryMethod().getFieldSpecification();
if (!StringUtils.hasText(fieldSpec)) {
return query;
}
try {
BasicQuery result = new BasicQuery(query.getQueryObject().toString(), fieldSpec);
result.setSortObject(query.getSortObject());
return result;
} catch (JSONParseException o_O) {
throw new IllegalStateException(String.format("Invalid query or field specification in %s!", getQueryMethod(),
o_O));
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.mongodb.repository.query.AbstractMongoQuery#createCountQuery(org.springframework.data.mongodb.repository.query.ConvertingParameterAccessor)
*/
@Override
protected Query createCountQuery(ConvertingParameterAccessor accessor) {
return new MongoQueryCreator(tree, accessor, context, false).createQuery();
}
/*
* (non-Javadoc)
* @see org.springframework.data.mongodb.repository.query.AbstractMongoQuery#isCountQuery()
*/
@Override
protected boolean isCountQuery() {
return tree.isCountProjection();
}
/*
* (non-Javadoc)
* @see org.springframework.data.mongodb.repository.query.AbstractMongoQuery#isDeleteQuery()
*/
@Override
protected boolean isDeleteQuery() {
return tree.isDelete();
}
}