org.apache.kafka.clients.admin.DescribeTransactionsResult Maven / Gradle / Ivy
/*
* 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.kafka.clients.admin;
import org.apache.kafka.clients.admin.internals.CoordinatorKey;
import org.apache.kafka.common.KafkaFuture;
import org.apache.kafka.common.annotation.InterfaceStability;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ExecutionException;
@InterfaceStability.Evolving
public class DescribeTransactionsResult {
private final Map> futures;
DescribeTransactionsResult(Map> futures) {
this.futures = futures;
}
/**
* Get the description of a specific transactional ID.
*
* @param transactionalId the transactional ID to describe
* @return a future which completes when the transaction description of a particular
* transactional ID is available.
* @throws IllegalArgumentException if the `transactionalId` was not included in the
* respective call to {@link Admin#describeTransactions(Collection, DescribeTransactionsOptions)}.
*/
public KafkaFuture description(String transactionalId) {
CoordinatorKey key = CoordinatorKey.byTransactionalId(transactionalId);
KafkaFuture future = futures.get(key);
if (future == null) {
throw new IllegalArgumentException("TransactionalId " +
"`" + transactionalId + "` was not included in the request");
}
return future;
}
/**
* Get a future which returns a map of the transaction descriptions requested in the respective
* call to {@link Admin#describeTransactions(Collection, DescribeTransactionsOptions)}.
*
* If the description fails on any of the transactional IDs in the request, then this future
* will also fail.
*
* @return a future which either completes when all transaction descriptions complete or fails
* if any of the descriptions cannot be obtained
*/
public KafkaFuture> all() {
return KafkaFuture.allOf(futures.values().toArray(new KafkaFuture[0]))
.thenApply(nil -> {
Map results = new HashMap<>(futures.size());
for (Map.Entry> entry : futures.entrySet()) {
try {
results.put(entry.getKey().idValue, entry.getValue().get());
} catch (InterruptedException | ExecutionException e) {
// This should be unreachable, because allOf ensured that all the futures completed successfully.
throw new RuntimeException(e);
}
}
return results;
});
}
}