com.joyfulmongo.db.JFMongoCmdUpdate.java Source code

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Here is the source code for com.joyfulmongo.db.JFMongoCmdUpdate.java

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/*
 * Copyright 2014 Weifeng Bao
 *
 * 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 com.joyfulmongo.db;

import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.json.JSONObject;

import com.joyfulmongo.db.javadriver.JFDBCollection;
import com.joyfulmongo.db.javadriver.JFDBCollectionFactory;

public class JFMongoCmdUpdate extends JFMongoCmd {
    private static Logger LOGGER = Logger.getLogger(JFMongoCmdUpdate.class.getName());
    private JSONObject updates;
    private JSONObject query;
    private String colname;

    public JFMongoCmdUpdate(String colname, JSONObject updates) {
        String objectId = updates.optString(Constants.Props.objectId.toString());
        if (objectId == null) {
            throw new IllegalArgumentException("Update object must have have ObjectId.");
        }
        this.query = new JSONObject();
        query.put(Constants.Props.objectId.toString(), objectId);

        this.updates = updates;
        this.colname = colname;
    }

    public JFMongoCmdUpdate(String colname, JSONObject query, JSONObject updates) {
        this.query = query;
        this.updates = updates;
        this.colname = colname;
    }

    @Override
    protected void beforeExecute() {
    }

    @Override
    protected JFMongoCmdResult execute() {
        JFMongoCmdResult result = new JFMongoCmdResult();

        List<ContainerObject> childs = findChildObject(updates);
        for (ContainerObject child : childs) {
            child.onUpdate(colname, updates);

            if (child instanceof OpCmd) {
                OpCmd cmd = (OpCmd) child;
                Object o = cmd.onCreateOutput();
                String key = cmd.getKey();
                result.put(key, o);
            }
        }

        if (LOGGER.isLoggable(Level.FINE)) {
            LOGGER.log(Level.FINE, " OnUpdate=" + updates);
        }

        Date now = Utils.getCurrentTime();
        updates.put(Constants.Props.updatedAt.toString(), now);

        JFDBCollection collection = JFDBCollectionFactory.getInstance().getCollection(colname);
        collection.update(query, updates);

        result.setUpdatedAt(now);

        return result;
    }

    @Override
    protected JFMongoCmdResult afterExecute(JFMongoCmdResult executeResult) {
        return executeResult;
    }
}