fr.jetoile.hadoopunit.component.MongoDbBootstrap.java Source code

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Here is the source code for fr.jetoile.hadoopunit.component.MongoDbBootstrap.java

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/*
 * 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 fr.jetoile.hadoopunit.component;

import com.github.sakserv.minicluster.impl.MongodbLocalServer;
import fr.jetoile.hadoopunit.Component;
import fr.jetoile.hadoopunit.HadoopUnitConfig;
import fr.jetoile.hadoopunit.exception.BootstrapException;
import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MongoDbBootstrap implements Bootstrap {
    final public static String NAME = Component.MONGODB.name();

    final private Logger LOGGER = LoggerFactory.getLogger(MongoDbBootstrap.class);

    private State state = State.STOPPED;

    private Configuration configuration;

    private MongodbLocalServer mongodbLocalServer;

    private int port;
    private String ip;

    public MongoDbBootstrap() {
        if (mongodbLocalServer == null) {
            try {
                loadConfig();
            } catch (BootstrapException e) {
                LOGGER.error("unable to load configuration", e);
            }
        }
    }

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public String getProperties() {
        return "[" + "ip:" + ip + ", port:" + port + "]";
    }

    private void loadConfig() throws BootstrapException {
        try {
            configuration = new PropertiesConfiguration(HadoopUnitConfig.DEFAULT_PROPS_FILE);
        } catch (ConfigurationException e) {
            throw new BootstrapException("bad config", e);
        }

        port = configuration.getInt(HadoopUnitConfig.MONGO_PORT_KEY);
        ip = configuration.getString(HadoopUnitConfig.MONGO_IP_KEY);
    }

    private void build() {
        mongodbLocalServer = new MongodbLocalServer.Builder().setIp(ip).setPort(port).build();
    }

    @Override
    public Bootstrap start() {
        if (state == State.STOPPED) {
            state = State.STARTING;
            LOGGER.info("{} is starting", this.getClass().getName());
            build();
            try {
                mongodbLocalServer.start();
            } catch (Exception e) {
                LOGGER.error("unable to add mongodb", e);
            }
            state = State.STARTED;
            LOGGER.info("{} is started", this.getClass().getName());
        }

        return this;
    }

    @Override
    public Bootstrap stop() {
        if (state == State.STARTED) {
            state = State.STOPPING;
            LOGGER.info("{} is stopping", this.getClass().getName());
            try {
                mongodbLocalServer.stop(true);
            } catch (Exception e) {
                LOGGER.error("unable to stop mongdb", e);
            }
            state = State.STOPPED;
            LOGGER.info("{} is stopped", this.getClass().getName());
        }
        return this;
    }

    @Override
    public org.apache.hadoop.conf.Configuration getConfiguration() {
        throw new UnsupportedOperationException(
                "the method getConfiguration can not be called on MongoDbBootstrap");
    }

}