CuratorBundle.java

/**
 * Copyright 2014 Jordan Zimmerman
 *
 * 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 io.soabase.zookeeper.discovery;

import io.dropwizard.Configuration;
import io.dropwizard.ConfiguredBundle;
import io.dropwizard.lifecycle.Managed;
import io.dropwizard.setup.Bootstrap;
import io.dropwizard.setup.Environment;
import io.soabase.core.SoaBundle;
import io.soabase.core.features.config.ComposedConfigurationAccessor;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.retry.RetryOneTime;
import org.apache.curator.utils.CloseableUtils;

public class CuratorBundle<T extends Configuration> implements ConfiguredBundle<T>
{
    @Override
    public void run(T configuration, Environment environment) throws Exception
    {
        CuratorConfiguration curatorConfiguration = ComposedConfigurationAccessor.access(configuration, environment, CuratorConfiguration.class);
        // TODO more config
        final CuratorFramework curator = CuratorFrameworkFactory.newClient(curatorConfiguration.getConnectionString(), new RetryOneTime(1));

        Managed managed = new Managed()
        {
            @Override
            public void start() throws Exception
            {
                curator.start();
            }

            @Override
            public void stop() throws Exception
            {
                CloseableUtils.closeQuietly(curator);
            }
        };
        environment.lifecycle().manage(managed);

        SoaBundle.getFeatures(environment).putNamed(curator, CuratorFramework.class, curatorConfiguration.getCuratorName());
    }

    @Override
    public void initialize(Bootstrap<?> bootstrap)
    {
        // NOP
    }
}