org.apache.kafka.metadata.BrokerRegistrationInControlledShutdownChange 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.metadata;
import java.util.Arrays;
import java.util.Map;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Collectors;
public enum BrokerRegistrationInControlledShutdownChange {
// Note that Optional.of(true) is not a valid state change here. The only
// way to leave the in controlled shutdown state is by registering the
// broker with a new incarnation id.
NONE(0, Optional.empty()),
IN_CONTROLLED_SHUTDOWN(1, Optional.of(true));
private final byte value;
private final Optional asBoolean;
private final static Map VALUE_TO_ENUM =
Arrays.stream(BrokerRegistrationInControlledShutdownChange.values()).
collect(Collectors.toMap(v -> Byte.valueOf(v.value()), Function.identity()));
public static Optional fromValue(byte value) {
return Optional.ofNullable(VALUE_TO_ENUM.get(value));
}
BrokerRegistrationInControlledShutdownChange(int value, Optional asBoolean) {
this.value = (byte) value;
this.asBoolean = asBoolean;
}
public Optional asBoolean() {
return asBoolean;
}
public byte value() {
return value;
}
}