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/*
* ============LICENSE_START=======================================================
* ONAP PAP
* ================================================================================
* Copyright (C) 2019 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.pap.main.rest.depundep;
import lombok.Getter;
import org.onap.policy.models.pdp.concepts.PdpGroup;
/**
* PdpGroup data, only the latest copy of the group is retained.
*/
public class GroupData {
@Getter
private PdpGroup group;
private enum State {
UNCHANGED, CREATED, UPDATED
}
/**
* State of the group.
*/
private State state;
/**
* Constructs the object, for an existing group.
*
* @param group the group that is in the DB
*/
public GroupData(PdpGroup group) {
this(group, false);
}
/**
* Constructs the object.
*
* @param group the group that is in, or to be added to, the DB
* @param isNew {@code true} if this is a new group, {@code false} otherwise
*/
public GroupData(PdpGroup group, boolean isNew) {
this.group = group;
this.state = (isNew ? State.CREATED : State.UNCHANGED);
}
/**
* Determines if the group is new.
*
* @return {@code true} if the group is new, {@code false} otherwise
*/
public boolean isNew() {
return (state == State.CREATED);
}
/**
* Determines if the group has been updated.
*
* @return {@code true} if the group has been updated, {@code false} otherwise
*/
public boolean isUpdated() {
return (state == State.UPDATED);
}
/**
* Updates the group to the new value.
*
* @param newGroup the updated group
*/
public void update(PdpGroup newGroup) {
if (!this.group.getName().equals(newGroup.getName())) {
throw new IllegalArgumentException(
"expected group " + this.group.getName() + ", but received " + newGroup.getName());
}
this.group = newGroup;
if (state == State.UNCHANGED) {
state = State.UPDATED;
}
}
}
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