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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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 lombok.NonNull;
/**
* Lock implementation whose operations always succeed.
*/
public class AlwaysSuccessLock extends LockImpl {
private static final long serialVersionUID = 1L;
/**
* Overrides parent constructor.
*/
public AlwaysSuccessLock() {
setState(LockState.ACTIVE);
}
/**
* Overrides parent constructor.
*/
public AlwaysSuccessLock(@NonNull LockState state, @NonNull String resourceId,
@NonNull String ownerKey, int holdSec, @NonNull LockCallback callback) {
super(state, resourceId, ownerKey, holdSec, callback);
if (!isActive()) {
throw new IllegalArgumentException("AlwaysSuccessLock can only be created in the active state");
}
}
/**
* Constructs the object.
*/
public AlwaysSuccessLock(@NonNull String resourceId, @NonNull String ownerKey,
int holdSec, @NonNull LockCallback callback) {
super(LockState.ACTIVE, resourceId, ownerKey, holdSec, callback);
}
/**
* Always returns true.
*/
@Override
public synchronized boolean free() {
return true;
}
}
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