org.elasticsearch.action.admin.indices.template.get.TransportGetIndexTemplatesAction Maven / Gradle / Ivy
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* the Apache License, Version 2.0 (the "License"); you may
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.elasticsearch.action.admin.indices.template.get;
import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
import com.google.common.collect.Lists;
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.metadata.IndexTemplateMetaData;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.List;
/**
*
*/
public class TransportGetIndexTemplatesAction extends TransportMasterNodeOperationAction {
@Inject
public TransportGetIndexTemplatesAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool) {
super(settings, transportService, clusterService, threadPool);
}
@Override
protected String transportAction() {
return GetIndexTemplatesAction.NAME;
}
@Override
protected String executor() {
return ThreadPool.Names.SAME;
}
@Override
protected GetIndexTemplatesRequest newRequest() {
return new GetIndexTemplatesRequest();
}
@Override
protected GetIndexTemplatesResponse newResponse() {
return new GetIndexTemplatesResponse();
}
@Override
protected void masterOperation(GetIndexTemplatesRequest request, ClusterState state, ActionListener listener) throws ElasticsearchException {
List results;
// If we did not ask for a specific name, then we return all templates
if (request.names().length == 0) {
results = Lists.newArrayList(state.metaData().templates().values().toArray(IndexTemplateMetaData.class));
} else {
results = Lists.newArrayList();
}
for (String name : request.names()) {
if (Regex.isSimpleMatchPattern(name)) {
for (ObjectObjectCursor entry : state.metaData().templates()) {
if (Regex.simpleMatch(name, entry.key)) {
results.add(entry.value);
}
}
} else if (state.metaData().templates().containsKey(name)) {
results.add(state.metaData().templates().get(name));
}
}
listener.onResponse(new GetIndexTemplatesResponse(results));
}
}