org.elasticsearch.action.admin.cluster.repositories.get.TransportGetRepositoriesAction Maven / Gradle / Ivy
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.action.admin.cluster.repositories.get;
import com.google.common.collect.ImmutableList;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.master.TransportMasterNodeOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.metadata.RepositoriesMetaData;
import org.elasticsearch.cluster.metadata.RepositoryMetaData;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.repositories.RepositoryMissingException;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Transport action for get repositories operation
*/
public class TransportGetRepositoriesAction extends TransportMasterNodeOperationAction {
@Inject
public TransportGetRepositoriesAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool) {
super(settings, transportService, clusterService, threadPool);
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected String transportAction() {
return GetRepositoriesAction.NAME;
}
@Override
protected GetRepositoriesRequest newRequest() {
return new GetRepositoriesRequest();
}
@Override
protected GetRepositoriesResponse newResponse() {
return new GetRepositoriesResponse();
}
@Override
protected ClusterBlockException checkBlock(GetRepositoriesRequest request, ClusterState state) {
return state.blocks().indexBlockedException(ClusterBlockLevel.METADATA, "");
}
@Override
protected void masterOperation(final GetRepositoriesRequest request, ClusterState state, final ActionListener listener) throws ElasticsearchException {
MetaData metaData = state.metaData();
RepositoriesMetaData repositories = metaData.custom(RepositoriesMetaData.TYPE);
if (request.repositories().length == 0 || (request.repositories().length == 1 && "_all".equals(request.repositories()[0]))) {
if (repositories != null) {
listener.onResponse(new GetRepositoriesResponse(repositories.repositories()));
} else {
listener.onResponse(new GetRepositoriesResponse(ImmutableList.of()));
}
} else {
if (repositories != null) {
ImmutableList.Builder repositoryListBuilder = ImmutableList.builder();
for (String repository : request.repositories()) {
RepositoryMetaData repositoryMetaData = repositories.repository(repository);
if (repositoryMetaData == null) {
listener.onFailure(new RepositoryMissingException(repository));
return;
}
repositoryListBuilder.add(repositoryMetaData);
}
listener.onResponse(new GetRepositoriesResponse(repositoryListBuilder.build()));
} else {
listener.onFailure(new RepositoryMissingException(request.repositories()[0]));
}
}
}
}