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package org.apache.james.modules.metrics;

import org.apache.james.lifecycle.api.Startable;
import org.apache.james.utils.InitializationOperation;
import org.apache.james.utils.InitilizationOperationBuilder;

import com.codahale.metrics.MetricRegistry;
import com.datastax.driver.core.Session;
import com.google.inject.AbstractModule;
import com.google.inject.Scopes;
import com.google.inject.multibindings.ProvidesIntoSet;

public class CassandraMetricsModule extends AbstractModule {
    @Override
    protected void configure() {
        bind(CassandraMetricsInjector.class)
            .in(Scopes.SINGLETON);
    }

    @ProvidesIntoSet
    InitializationOperation injectMetrics(MetricRegistry metricRegistry, Session session) {
        return InitilizationOperationBuilder
            .forClass(CassandraMetricsInjector.class)
            .init(() -> metricRegistry.registerAll(
                session.getCluster()
                    .getMetrics()
                    .getRegistry()));
    }

    public static class CassandraMetricsInjector implements Startable {

    }
}
