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package org.openecomp.sdc.be.components.merge.group;
import org.openecomp.sdc.be.components.merge.ComponentsGlobalMergeCommand;
import org.openecomp.sdc.be.components.merge.VspComponentsMergeCommand;
import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.be.impl.ComponentsUtils;
import org.openecomp.sdc.be.model.Component;
import org.openecomp.sdc.be.model.ComponentInstance;
import org.openecomp.sdc.be.model.GroupDefinition;
import org.openecomp.sdc.be.model.jsonjanusgraph.operations.GroupsOperation;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.springframework.core.annotation.Order;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import static java.util.stream.Collectors.toList;
import static java.util.stream.Collectors.toMap;
import static org.apache.commons.collections.CollectionUtils.isEmpty;
import static org.apache.commons.collections.MapUtils.isEmpty;
import static org.openecomp.sdc.be.components.merge.resource.ResourceDataMergeBusinessLogic.FIRST_COMMAND;
@org.springframework.stereotype.Component
@Order(FIRST_COMMAND)//must run before policies merge command
public class ComponentGroupMergeCommand implements VspComponentsMergeCommand, ComponentsGlobalMergeCommand {
private static final Logger log = Logger.getLogger(ComponentGroupMergeCommand.class);
private final GroupsOperation groupsOperation;
private final ComponentsUtils componentsUtils;
public ComponentGroupMergeCommand(GroupsOperation groupsOperation, ComponentsUtils componentsUtils) {
this.groupsOperation = groupsOperation;
this.componentsUtils = componentsUtils;
}
@Override
public String description() {
return "merge group from old component to new component";
}
@Override
public ActionStatus mergeComponents(Component prevComponent, Component currentComponent) {
log.debug("#mergeComponents - merging user defined groups to component {}", currentComponent.getUniqueId());
if (isEmpty(prevComponent.getGroups())) {
return ActionStatus.OK;
}
List<GroupDefinition> prevUserDefinedGroups = getAllPreviouslyUserDefinedGroups(prevComponent, currentComponent);
if (isEmpty(prevUserDefinedGroups)) {
return ActionStatus.OK;
}
updateGroupsMembers(prevUserDefinedGroups, prevComponent, currentComponent);
return associateGroupsToComponent(currentComponent, prevUserDefinedGroups);
}
private List<GroupDefinition> getAllPreviouslyUserDefinedGroups(Component prevComponent, Component currCmpt) {
return prevComponent.getGroups()
.stream()
.filter(GroupDefinition::isUserDefined)
.filter(group -> !currCmpt.containsGroupWithInvariantName(group.getInvariantName()))
.collect(toList());
}
private void updateGroupsMembers(List<GroupDefinition> prevUserDefinedGroups, Component prevComponent, Component currentComponent) {
log.debug("#updateGroupsMembers - updating groups member with members taken from component {}", currentComponent.getUniqueId());
prevUserDefinedGroups.forEach(grp -> grp.setMembers(resolveNewGroupMembers(grp, prevComponent, currentComponent)));
}
private Map<String, String> resolveNewGroupMembers(GroupDefinition grp, Component prevComponent, Component currentComponent) {
log.debug("#resolveNewGroupMembers - updating group member for group {}", grp.getUniqueId());
Map<String, String> prevGroupMembers = grp.getMembers();
if (isEmpty(prevGroupMembers)) {
return null;
}
return findNewInstancesByPrevInstancesNames(prevComponent, currentComponent, prevGroupMembers);
}
private Map<String, String> findNewInstancesByPrevInstancesNames(Component prevComponent, Component currentComponent, Map<String, String> prevGroupMembers) {
return prevGroupMembers.values()
.stream()
.map(prevComponent::getComponentInstanceById)
.filter(Optional::isPresent)
.map(Optional::get)
.map(prevInstance -> currentComponent.getComponentInstanceByName(prevInstance.getName()))
.filter(Optional::isPresent)
.map(Optional::get)
.collect(toMap(ComponentInstance::getName, ComponentInstance::getUniqueId));
}
private ActionStatus associateGroupsToComponent(Component currentComponent, List<GroupDefinition> prevUserDefinedGroups) {
currentComponent.addGroups(prevUserDefinedGroups);
return groupsOperation.addGroups(currentComponent, prevUserDefinedGroups)
.either(addedGroups -> ActionStatus.OK,
componentsUtils::convertFromStorageResponse);
}
}
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