org.apache.bookkeeper.client.api.WriteFlag 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.bookkeeper.client.api;
import java.util.EnumSet;
import lombok.Getter;
/**
* Flags to specify the behaviour of writes.
*/
@Getter
public enum WriteFlag {
/**
* Writes will be acknowledged after writing to the filesystem
* but not yet been persisted to disks.
*
* @see ForceableHandle#force()
*/
DEFERRED_SYNC(0x1 << 0);
/**
* No flag is set, use default behaviour.
*/
public static final EnumSet NONE = EnumSet.noneOf(WriteFlag.class);
private static final EnumSet ONLY_DEFERRED_SYNC = EnumSet.of(DEFERRED_SYNC);
private final int value;
WriteFlag(int value) {
this.value = value;
}
/**
* Converts a set of flags from a binary representation.
*
* @param flagValue the binary value
* @return a set of flags
*/
public static EnumSet getWriteFlags(int flagValue) {
if ((flagValue & DEFERRED_SYNC.value) == DEFERRED_SYNC.value) {
return ONLY_DEFERRED_SYNC;
}
return WriteFlag.NONE;
}
/**
* Converts a set of flags from a binary representation.
*
* @param flags the flags
* @return the binary representation
*/
public static int getWriteFlagsValue(EnumSet flags) {
int result = 0;
for (WriteFlag flag : flags) {
result |= flag.value;
}
return result;
}
}