| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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. |
| */ |
| |
| package org.apache.iotdb.db.queryengine.plan.execution.config.sys.subscription; |
| |
| import org.apache.iotdb.confignode.rpc.thrift.TShowSubscriptionInfo; |
| import org.apache.iotdb.db.queryengine.common.header.ColumnHeader; |
| import org.apache.iotdb.db.queryengine.common.header.ColumnHeaderConstant; |
| import org.apache.iotdb.db.queryengine.common.header.DatasetHeaderFactory; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.ConfigTaskResult; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.IConfigTask; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.executor.IConfigTaskExecutor; |
| import org.apache.iotdb.db.queryengine.plan.statement.metadata.subscription.ShowSubscriptionsStatement; |
| import org.apache.iotdb.rpc.TSStatusCode; |
| import org.apache.iotdb.tsfile.common.conf.TSFileConfig; |
| import org.apache.iotdb.tsfile.read.common.block.TsBlockBuilder; |
| import org.apache.iotdb.tsfile.utils.Binary; |
| |
| import com.google.common.util.concurrent.ListenableFuture; |
| import com.google.common.util.concurrent.SettableFuture; |
| |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| public class ShowSubscriptionTask implements IConfigTask { |
| |
| private final ShowSubscriptionsStatement showSubscriptionsStatement; |
| |
| public ShowSubscriptionTask(ShowSubscriptionsStatement showSubscriptionsStatement) { |
| this.showSubscriptionsStatement = showSubscriptionsStatement; |
| } |
| |
| @Override |
| public ListenableFuture<ConfigTaskResult> execute(IConfigTaskExecutor configTaskExecutor) |
| throws InterruptedException { |
| return configTaskExecutor.showSubscriptions(showSubscriptionsStatement); |
| } |
| |
| public static void buildTSBlock( |
| List<TShowSubscriptionInfo> subscriptionInfoList, SettableFuture<ConfigTaskResult> future) { |
| final TsBlockBuilder builder = |
| new TsBlockBuilder( |
| ColumnHeaderConstant.showSubscriptionColumnHeaders.stream() |
| .map(ColumnHeader::getColumnType) |
| .collect(Collectors.toList())); |
| |
| for (TShowSubscriptionInfo tSubscriptionInfo : subscriptionInfoList) { |
| builder.getTimeColumnBuilder().writeLong(0L); |
| builder |
| .getColumnBuilder(0) |
| .writeBinary(new Binary(tSubscriptionInfo.getTopicName(), TSFileConfig.STRING_CHARSET)); |
| builder |
| .getColumnBuilder(1) |
| .writeBinary( |
| new Binary(tSubscriptionInfo.getConsumerGroupId(), TSFileConfig.STRING_CHARSET)); |
| builder |
| .getColumnBuilder(2) |
| .writeBinary( |
| new Binary( |
| tSubscriptionInfo.getConsumerIds().toString(), TSFileConfig.STRING_CHARSET)); |
| builder.declarePosition(); |
| } |
| |
| future.set( |
| new ConfigTaskResult( |
| TSStatusCode.SUCCESS_STATUS, |
| builder.build(), |
| DatasetHeaderFactory.getShowSubscriptionHeader())); |
| } |
| } |