org.eclipselabs.mongoemf.query.mongodb.NativeQueryEngine.java Source code

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Here is the source code for org.eclipselabs.mongoemf.query.mongodb.NativeQueryEngine.java

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/*******************************************************************************
 * Copyright (c) 2013 Bryan Hunt.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Bryan Hunt - initial API and implementation
 *******************************************************************************/

package org.eclipselabs.mongoemf.query.mongodb;

import org.eclipse.emf.common.util.URI;
import org.eclipselabs.mongoemf.QueryEngine;
import org.eclipselabs.mongoemf.model.ModelFactory;
import org.eclipselabs.mongoemf.model.MongoQuery;

import com.mongodb.DBObject;
import com.mongodb.util.JSON;

/**
 * @author bhunt
 * 
 */
public class NativeQueryEngine implements QueryEngine {
    @Override
    public MongoQuery buildDBObjectQuery(URI uri) {
        DBObject query = (DBObject) JSON.parse(URI.decode(uri.query()));

        MongoQuery mongoQuery = ModelFactory.eINSTANCE.createMongoQuery();
        mongoQuery.setFilter((DBObject) query.get("filter"));
        mongoQuery.setProjection((DBObject) query.get("projection"));
        mongoQuery.setSort((DBObject) query.get("sort"));
        mongoQuery.setLimit((Integer) query.get("limit"));

        return mongoQuery;
    }
}