org.netbeans.modules.mongodb.ui.QueryWorker.java Source code

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Here is the source code for org.netbeans.modules.mongodb.ui.QueryWorker.java

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/* 
 * Copyright (C) 2015 Yann D'Isanto
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.netbeans.modules.mongodb.ui;

import com.mongodb.client.FindIterable;
import com.mongodb.client.MongoCollection;
import org.bson.BsonDocument;
import org.bson.conversions.Bson;
import org.netbeans.modules.mongodb.QueryExecutor;
import org.netbeans.modules.mongodb.QueryResult;

/**
 *
 * Executes a query asynchronously, then updates the UI.
 *
 * @author Yann D'Isanto
 */
public final class QueryWorker extends QueryResultWorker {

    private final MongoCollection<BsonDocument> collection;

    private final Bson filter;

    private final Bson projection;

    private final Bson sort;

    public QueryWorker(String name, MongoCollection<BsonDocument> collection, Bson filter, Bson projection,
            Bson sort, int cacheLoadingBlockSize) {
        super(name, cacheLoadingBlockSize);
        this.collection = collection;
        this.filter = filter;
        this.projection = projection;
        this.sort = sort;
    }

    @Override
    protected QueryResult createQuery() throws Exception {
        FindIterable<BsonDocument> query = filter != null ? collection.find(filter) : collection.find();
        query = query.projection(projection).sort(sort);
        long size = filter != null ? collection.count(filter) : collection.count();
        return new QueryResult.MongoCursorResult(query.iterator(), this, size);
    }
}