org.elasticsearch.action.admin.indices.settings.get.TransportGetSettingsAction 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.settings.get;
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.IndexMetaData;
import org.elasticsearch.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.settings.SettingsFilter;
import org.elasticsearch.common.util.CollectionUtils;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.Map;
/**
*/
public class TransportGetSettingsAction extends TransportMasterNodeOperationAction {
private final SettingsFilter settingsFilter;
@Inject
public TransportGetSettingsAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, SettingsFilter settingsFilter) {
super(settings, transportService, clusterService, threadPool);
this.settingsFilter = settingsFilter;
}
@Override
protected String transportAction() {
return GetSettingsAction.NAME;
}
@Override
protected String executor() {
// Very lightweight operation
return ThreadPool.Names.SAME;
}
@Override
protected GetSettingsRequest newRequest() {
return new GetSettingsRequest();
}
@Override
protected GetSettingsResponse newResponse() {
return new GetSettingsResponse();
}
@Override
protected void masterOperation(GetSettingsRequest request, ClusterState state, ActionListener listener) throws ElasticsearchException {
request.indices(state.metaData().concreteIndices(request.indices(), request.indicesOptions()));
ImmutableOpenMap.Builder indexToSettingsBuilder = ImmutableOpenMap.builder();
for (String concreteIndex : request.indices()) {
IndexMetaData indexMetaData = state.getMetaData().index(concreteIndex);
if (indexMetaData == null) {
continue;
}
Settings settings = settingsFilter.filterSettings(indexMetaData.settings());
if (!CollectionUtils.isEmpty(request.names())) {
ImmutableSettings.Builder settingsBuilder = ImmutableSettings.builder();
for (Map.Entry entry : settings.getAsMap().entrySet()) {
if (Regex.simpleMatch(request.names(), entry.getKey())) {
settingsBuilder.put(entry.getKey(), entry.getValue());
}
}
settings = settingsBuilder.build();
}
indexToSettingsBuilder.put(concreteIndex, settings);
}
listener.onResponse(new GetSettingsResponse(indexToSettingsBuilder.build()));
}
}