org.elasticsearch.action.admin.indices.alias.exists.TransportAliasesExistAction Maven / Gradle / Ivy
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.action.admin.indices.alias.exists;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.alias.get.GetAliasesRequest;
import org.elasticsearch.action.support.master.TransportMasterNodeOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
*/
public class TransportAliasesExistAction extends TransportMasterNodeOperationAction {
@Inject
public TransportAliasesExistAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool) {
super(settings, transportService, clusterService, threadPool);
}
@Override
protected String transportAction() {
return AliasesExistAction.NAME;
}
@Override
protected String executor() {
// very lightweight operation, no need to fork
return ThreadPool.Names.SAME;
}
@Override
protected GetAliasesRequest newRequest() {
return new GetAliasesRequest();
}
@Override
protected AliasesExistResponse newResponse() {
return new AliasesExistResponse();
}
@Override
protected void masterOperation(GetAliasesRequest request, ClusterState state, ActionListener listener) throws ElasticsearchException {
String[] concreteIndices = state.metaData().concreteIndices(request.indices(), request.indicesOptions());
request.indices(concreteIndices);
boolean result = state.metaData().hasAliases(request.aliases(), request.indices());
listener.onResponse(new AliasesExistResponse(result));
}
}