/*
* 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;
import io.crate.PartitionName;
import io.crate.executor.TaskResult;
import io.crate.metadata.table.TableInfo;
import io.crate.planner.node.ddl.DropTableNode;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexResponse;
import org.elasticsearch.action.admin.indices.delete.TransportDeleteIndexAction;
import org.elasticsearch.action.admin.indices.template.delete.DeleteIndexTemplateRequest;
import org.elasticsearch.action.admin.indices.template.delete.DeleteIndexTemplateResponse;
import org.elasticsearch.action.admin.indices.template.delete.TransportDeleteIndexTemplateAction;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import java.util.List;
import java.util.Locale;
public class DropTableTask extends AbstractChainedTask {
private static final TaskResult SUCCESS_RESULT = TaskResult.ONE_ROW;
private final ESLogger logger = Loggers.getLogger(getClass());
private final TableInfo tableInfo;
private final TransportDeleteIndexTemplateAction deleteTemplateAction;
private final TransportDeleteIndexAction deleteIndexAction;
public DropTableTask(TransportDeleteIndexTemplateAction deleteTemplateAction,
TransportDeleteIndexAction deleteIndexAction,
DropTableNode node) {
super();
this.tableInfo = node.tableInfo();
this.deleteTemplateAction = deleteTemplateAction;
this.deleteIndexAction = deleteIndexAction;
}
@Override
protected void doStart(List<TaskResult> upstreamResults) {
if (tableInfo.isPartitioned()) {
String templateName = PartitionName.templateName(tableInfo.ident().name());
deleteTemplateAction.execute(new DeleteIndexTemplateRequest(templateName), new ActionListener<DeleteIndexTemplateResponse>() {
@Override
public void onResponse(DeleteIndexTemplateResponse response) {
if (!response.isAcknowledged()) {
warnNotAcknowledged(String.format(Locale.ENGLISH, "dropping table '%s'", tableInfo.ident().fqn()));
}
if (!tableInfo.partitions().isEmpty()) {
deleteESIndex(tableInfo.ident().name());
} else {
result.set(SUCCESS_RESULT);
}
}
@Override
public void onFailure(Throwable e) {
result.setException(e);
}
});
} else {
deleteESIndex(tableInfo.ident().name());
}
}
private void deleteESIndex(String indexOrAlias) {
deleteIndexAction.execute(new DeleteIndexRequest(indexOrAlias), new ActionListener<DeleteIndexResponse>() {
@Override
public void onResponse(DeleteIndexResponse response) {
if (!response.isAcknowledged()) {
warnNotAcknowledged(String.format(Locale.ENGLISH, "dropping table '%s'", tableInfo.ident().fqn()));
}
result.set(SUCCESS_RESULT);
}
@Override
public void onFailure(Throwable e) {
if (tableInfo.isPartitioned()) {
logger.warn("Could not (fully) delete all partitions of {}. " +
"Some orphaned partitions might still exist, " +
"but are not accessible.", e, tableInfo.ident().fqn());
}
result.setException(e);
}
});
}
}