org.s1.mongodb.cluster.MongoDBDDS.java Source code

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Here is the source code for org.s1.mongodb.cluster.MongoDBDDS.java

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/*
 * Copyright 2014 Grigory Pykhov
 *
 *    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.s1.mongodb.cluster;

import com.mongodb.DBCollection;
import com.mongodb.WriteConcern;
import org.s1.cluster.dds.DDSCluster;
import org.s1.cluster.dds.DistributedDataSource;
import org.s1.cluster.dds.beans.CommandBean;
import org.s1.cluster.dds.beans.Id;
import org.s1.cluster.dds.beans.MessageBean;
import org.s1.mongodb.MongoDBConnectionHelper;
import org.s1.mongodb.MongoDBFormat;
import org.s1.objects.Objects;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

/**
 * MongoDB CRUD helper
 * Provides CRUD operations with locks
 */
public class MongoDBDDS extends DistributedDataSource {

    private static final Logger LOG = LoggerFactory.getLogger(MongoDBDDS.class);

    @Override
    public void runWriteCommand(CommandBean b) {
        if (Objects.isNullOrEmpty(b.getCollection())) {
            return;
        }
        if (Objects.isNullOrEmpty(b.getEntity())) {
            return;
        }
        DBCollection coll = MongoDBConnectionHelper.getConnection(b.getDatabase()).getCollection(b.getCollection());

        if ("add".equals(b.getCommand()) || "set".equals(b.getCommand())) {
            if (b.getParams() == null) {
                return;
            }
            Map<String, Object> search = Objects.newHashMap("id", b.getEntity());
            b.getParams().put("id", b.getEntity());
            int n = coll.update(MongoDBFormat.fromMap(search), MongoDBFormat.fromMap(b.getParams()),
                    b.getCommand().equals("add"), false, WriteConcern.FSYNC_SAFE).getN();
            if (LOG.isDebugEnabled())
                LOG.debug("MongoDB records(" + n + ") " + (b.getCommand().equals("add") ? "added" : "updated")
                        + ", " + b);
        } else if ("remove".equals(b.getCommand())) {
            Map<String, Object> search = Objects.newHashMap("id", b.getEntity());
            int n = coll.remove(MongoDBFormat.fromMap(search), WriteConcern.FSYNC_SAFE).getN();
            if (LOG.isDebugEnabled())
                LOG.debug("MongoDB records(" + n + ") removed, " + b);
        }
    }

    /**
     * Add record to collection
     *
     * @param id
     * @param data
     */
    public static void add(Id id, Map<String, Object> data) {
        DDSCluster.call(new MessageBean(MongoDBDDS.class, id.getDatabase(), id.getCollection(), id.getEntity(),
                "add", data));
    }

    /**
     * Update record
     *
     * @param id
     * @param data
     */
    public static void set(Id id, Map<String, Object> data) {
        DDSCluster.call(new MessageBean(MongoDBDDS.class, id.getDatabase(), id.getCollection(), id.getEntity(),
                "set", data));

    }

    /**
     * Delete record
     *
     * @param id
     */
    public static void remove(Id id) {
        DDSCluster.call(new MessageBean(MongoDBDDS.class, id.getDatabase(), id.getCollection(), id.getEntity(),
                "remove", null));
    }

}