/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate licenses
* this file to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may
* obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.executor.transport.task.elasticsearch;
import com.google.common.collect.Iterables;
import io.crate.analyze.expressions.ExpressionToObjectVisitor;
import io.crate.data.BatchConsumer;
import io.crate.data.Row;
import io.crate.data.Row1;
import io.crate.executor.JobTask;
import io.crate.executor.transport.OneRowActionListener;
import io.crate.metadata.settings.CrateSettings;
import io.crate.planner.node.ddl.ESClusterUpdateSettingsPlan;
import io.crate.sql.tree.Expression;
import org.elasticsearch.action.admin.cluster.settings.ClusterUpdateSettingsRequest;
import org.elasticsearch.action.admin.cluster.settings.ClusterUpdateSettingsResponse;
import org.elasticsearch.action.admin.cluster.settings.TransportClusterUpdateSettingsAction;
import org.elasticsearch.common.settings.Settings;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
public class ESClusterUpdateSettingsTask extends JobTask {
private static final Function<Object, Row> TO_ONE_ROW = o -> new Row1(1L);
private final ESClusterUpdateSettingsPlan plan;
private final TransportClusterUpdateSettingsAction transport;
public ESClusterUpdateSettingsTask(ESClusterUpdateSettingsPlan plan,
TransportClusterUpdateSettingsAction transport) {
super(plan.jobId());
this.plan = plan;
this.transport = transport;
}
@Override
public void execute(BatchConsumer consumer, Row parameters) {
ClusterUpdateSettingsRequest request = buildESUpdateClusterSettingRequest(
buildSettingsFrom(plan.persistentSettings(), parameters),
buildSettingsFrom(plan.transientSettings(), parameters)
);
OneRowActionListener<ClusterUpdateSettingsResponse> actionListener = new OneRowActionListener<>(consumer, TO_ONE_ROW);
transport.execute(request, actionListener);
}
static Settings buildSettingsFrom(Map<String, List<Expression>> settingsMap, Row parameters) {
Settings.Builder settings = Settings.builder();
for (Map.Entry<String, List<Expression>> entry : settingsMap.entrySet()) {
String settingsName = entry.getKey();
if (CrateSettings.isValidSetting(settingsName) == false) {
throw new IllegalArgumentException("Setting '" + settingsName + "' is not supported");
}
List<Expression> value = entry.getValue();
// value can be null to reset settings
if (value == null) {
settings.put(settingsName, (String) null);
} else {
CrateSettings.flattenSettings(settings, settingsName,
ExpressionToObjectVisitor.convert(Iterables.getOnlyElement(value), parameters));
}
}
return settings.build();
}
private ClusterUpdateSettingsRequest buildESUpdateClusterSettingRequest(Settings persistentSettings,
Settings transientSettings) {
ClusterUpdateSettingsRequest request = new ClusterUpdateSettingsRequest();
request.persistentSettings(persistentSettings);
request.transientSettings(transientSettings);
return request;
}
}