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/**
* 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.pulsar.broker.resources;
import java.util.HashSet;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.function.Function;
import org.apache.pulsar.bookie.rackawareness.BookieRackAffinityMapping;
import org.apache.pulsar.common.policies.data.BookiesRackConfiguration;
import org.apache.pulsar.metadata.api.MetadataStore;
public class BookieResources extends BaseResources<BookiesRackConfiguration> {
private static final String AVAILABLE_BOOKIES_ROOT = "/ledgers/available";
public BookieResources(MetadataStore store, int operationTimeoutSec) {
super(store, BookiesRackConfiguration.class, operationTimeoutSec);
}
public CompletableFuture<Optional<BookiesRackConfiguration>> get() {
return getAsync(BookieRackAffinityMapping.BOOKIE_INFO_ROOT_PATH);
}
public CompletableFuture<Void> update(Function<Optional<BookiesRackConfiguration>,
BookiesRackConfiguration> modifyFunction) {
return getCache().readModifyUpdateOrCreate(BookieRackAffinityMapping.BOOKIE_INFO_ROOT_PATH,
modifyFunction).thenApply(__ -> null);
}
public CompletableFuture<Set<String>> listAvailableBookiesAsync() {
return getChildrenAsync(AVAILABLE_BOOKIES_ROOT)
.thenApply(list -> new HashSet<>(list));
}
}