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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019-2021 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2024 Nordix Foundation.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.drools.core.lock;
import java.io.Serial;
import lombok.NoArgsConstructor;
/**
* Lock implementation whose operations always fail.
*/
@NoArgsConstructor
public class AlwaysFailLock extends LockImpl {
@Serial
private static final long serialVersionUID = 1L;
/**
* Constructs the object.
*
* @param resourceId identifier of the resource to be locked
* @param ownerKey information identifying the owner requesting the lock
* @param holdSec amount of time, in seconds, for which the lock should be held once
* it has been granted, after which it will automatically be released
* @param callback callback to be invoked once the lock is granted, or subsequently
* lost; must not be {@code null}
*/
public AlwaysFailLock(String resourceId, String ownerKey, int holdSec, LockCallback callback) {
super(LockState.UNAVAILABLE, resourceId, ownerKey, holdSec, callback);
}
/**
* Always returns false.
*/
@Override
public synchronized boolean free() {
return false;
}
/**
* Always fails and invokes {@link LockCallback#lockUnavailable(Lock)}.
*/
@Override
public void extend(int holdSec, LockCallback callback) {
synchronized (this) {
setHoldSec(holdSec);
setCallback(callback);
}
notifyUnavailable();
}
}
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