/*
* 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.common.KafkaException;
import org.apache.kafka.common.KafkaFuture;
import org.apache.kafka.common.errors.ApiException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
/**
* The result of the deleteAcls call.
*/
public class DeleteAclsResults {
public static class FilterResult {
private final AclBinding acl;
private final ApiException exception;
FilterResult(AclBinding acl, ApiException exception) {
this.acl = acl;
this.exception = exception;
}
public AclBinding acl() {
return acl;
}
public ApiException exception() {
return exception;
}
}
public static class FilterResults {
private final List<FilterResult> acls;
FilterResults(List<FilterResult> acls) {
this.acls = acls;
}
public List<FilterResult> acls() {
return acls;
}
}
private final Map<AclBindingFilter, KafkaFuture<FilterResults>> futures;
DeleteAclsResults(Map<AclBindingFilter, KafkaFuture<FilterResults>> futures) {
this.futures = futures;
}
/**
* Return a map from topic names to futures which can be used to check the status of
* individual deletions.
*/
public Map<AclBindingFilter, KafkaFuture<FilterResults>> results() {
return futures;
}
/**
* Return a future which succeeds only if all the ACLs deletions succeed, and which contains all the deleted ACLs.
* Note that it if the filters don't match any ACLs, this is not considered an error.
*/
public KafkaFuture<Collection<AclBinding>> all() {
return KafkaFuture.allOf(futures.values().toArray(new KafkaFuture[0])).thenApply(
new KafkaFuture.Function<Void, Collection<AclBinding>>() {
@Override
public Collection<AclBinding> apply(Void v) {
List<AclBinding> acls = new ArrayList<>();
for (Map.Entry<AclBindingFilter, KafkaFuture<FilterResults>> entry : futures.entrySet()) {
FilterResults results;
try {
results = entry.getValue().get();
} catch (Throwable e) {
// This should be unreachable, since the future returned by KafkaFuture#allOf should
// have failed if any Future failed.
throw new KafkaException("DeleteAclsResults#all: internal error", e);
}
for (FilterResult result : results.acls()) {
if (result.exception() != null) {
throw result.exception();
}
acls.add(result.acl());
}
}
return acls;
}
});
}
}