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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 lombok.Setter;
import org.onap.policy.common.utils.validation.Version;
import org.onap.policy.models.pdp.concepts.PdpGroup;
import org.onap.policy.models.pdp.enums.PdpState;
/**
* PdpGroup data, which includes the old group, that's in the DB, and possibly a new
* group, that must be added to the DB.
*/
@Getter
public class GroupData {
private final PdpGroup oldGroup;
/**
* Starts out pointing to {@link #oldGroup}, but then changed to point to the new
* group, if {@link #setNewGroup(PdpGroup)} is invoked.
*/
private PdpGroup currentGroup;
/**
* Latest version of this group.
*/
@Setter
private Version latestVersion;
/**
* Constructs the object.
*
* @param group the group that is in the DB
*/
public GroupData(PdpGroup group) {
this.oldGroup = group;
this.currentGroup = group;
}
/**
* Determines if a new version of this group has been created (i.e.,
* {@link #setNewGroup(PdpGroup)} has been invoked.
*
* @return {@code true} if a new version of the group has been created, {@code false}
* otherwise
*/
public boolean isNew() {
return (currentGroup != oldGroup);
}
/**
* Updates to a new group.
*
* @param newGroup the new group
* @throws IllegalArgumentException if the new group has a different name than the old
* group
* @throws IllegalStateException if {@link #setLatestVersion(Version)} has not been
* invoked yet
*/
public void setNewGroup(PdpGroup newGroup) {
if (!currentGroup.getName().equals(newGroup.getName())) {
throw new IllegalArgumentException("attempt to change group name from " + currentGroup.getName() + " to "
+ newGroup.getName());
}
if (currentGroup == oldGroup) {
// first time to create a new group - bump the version
if (latestVersion == null) {
throw new IllegalStateException("latestVersion not set for group: " + oldGroup.getName());
}
latestVersion = latestVersion.newVersion();
oldGroup.setPdpGroupState(PdpState.PASSIVE);
}
currentGroup = newGroup;
currentGroup.setVersion(latestVersion.toString());
}
}
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