// Copyright 2017 JanusGraph Authors
//
// Licensed 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.janusgraph.diskstorage.locking.consistentkey;
import org.janusgraph.diskstorage.locking.LockStatus;
import java.time.Instant;
/**
* The timestamps of a lock held by a {@link ConsistentKeyLocker}
* and whether the held lock has or has not been checked.
*
* {@see ConsistentKeyLockStore}
*/
public class ConsistentKeyLockStatus implements LockStatus {
private final Instant write;
private final Instant expire;
private boolean checked;
public ConsistentKeyLockStatus(Instant written, Instant expire) {
this.write = written;
this.expire = expire;
this.checked = false;
}
@Override
public Instant getExpirationTimestamp() {
return expire;
}
public Instant getWriteTimestamp() {
return write;
}
public boolean isChecked() {
return checked;
}
public void setChecked() {
this.checked = true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (checked ? 1231 : 1237);
result = prime * result + ((expire == null) ? 0 : expire.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
ConsistentKeyLockStatus other = (ConsistentKeyLockStatus) obj;
if (checked != other.checked)
return false;
if (expire == null) {
if (other.expire != null)
return false;
} else if (!expire.equals(other.expire))
return false;
return true;
}
}