ServiceCleaner.java

package cz.cuni.mff.d3s.been.node;

import java.util.Collection;

import com.hazelcast.core.MembershipEvent;
import com.hazelcast.core.MembershipListener;
import com.hazelcast.query.SqlPredicate;

import cz.cuni.mff.d3s.been.cluster.context.ClusterContext;
import cz.cuni.mff.d3s.been.core.service.ServiceInfo;

/**
 * @author donarus
 */
final class ServiceCleaner implements MembershipListener {
	private ClusterContext clusterContext;

	public ServiceCleaner(ClusterContext clusterContext) {
		this.clusterContext = clusterContext;
	}

	@Override
	public void memberAdded(MembershipEvent membershipEvent) {
		// IGNORE
	}

	@Override
	public void memberRemoved(MembershipEvent membershipEvent) {
		String memberUuid = membershipEvent.getMember().getUuid();

		final SqlPredicate predicate = new SqlPredicate(String.format("hazelcastUuid = '%s'", memberUuid));
		Collection<ServiceInfo> infos = clusterContext.getServices().getServicesMap().values(predicate);
		for (ServiceInfo info : infos) {
			clusterContext.removeServiceInfo(info);
		}
	}

}