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package org.openecomp.sdc.be.components.merge.policy;
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.datatypes.elements.PolicyTargetType;
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.PolicyDefinition;
import org.openecomp.sdc.be.model.jsonjanusgraph.operations.ToscaOperationFacade;
import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.springframework.core.annotation.Order;
import java.util.*;
import static java.util.Collections.emptyList;
import static java.util.stream.Collectors.toList;
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.ANY_ORDER_COMMAND;
@org.springframework.stereotype.Component
@Order(ANY_ORDER_COMMAND)
public class PoliciesMergeCommand implements ComponentsGlobalMergeCommand, VspComponentsMergeCommand {
private static final Logger log = Logger.getLogger(PoliciesMergeCommand.class);
private final ToscaOperationFacade toscaOperationFacade;
private final ComponentsUtils componentsUtils;
public PoliciesMergeCommand(ToscaOperationFacade toscaOperationFacade, ComponentsUtils componentsUtils) {
this.toscaOperationFacade = toscaOperationFacade;
this.componentsUtils = componentsUtils;
}
@Override
public ActionStatus mergeComponents(Component prevComponent, Component currentComponent) {
log.debug("#mergeComponents - merging user defined policies to current component {}", currentComponent.getUniqueId());
if (isEmpty(prevComponent.getPolicies())) {
return ActionStatus.OK;
}
Map<String, PolicyDefinition> policiesToMerge = resolvePoliciesForMerge(prevComponent, currentComponent);
return associatePoliciesToComponent(currentComponent, policiesToMerge);
}
private ActionStatus associatePoliciesToComponent(Component currentComponent, Map<String, PolicyDefinition> policiesToMerge) {
log.debug("#associatePoliciesToComponent - associating {} policies into component {}", policiesToMerge.size(), currentComponent.getUniqueId());
currentComponent.setPolicies(policiesToMerge);
StorageOperationStatus associateResult = toscaOperationFacade.associatePoliciesToComponent(currentComponent.getUniqueId(), new ArrayList<>(policiesToMerge.values()));
return componentsUtils.convertFromStorageResponse(associateResult);
}
@Override
public String description() {
return "merge component policies";
}
private Map<String, PolicyDefinition> resolvePoliciesForMerge(Component prevComponent, Component currentComponent) {
Map<String, PolicyDefinition> policies = prevComponent.getPolicies();
policies.values().forEach(policy -> updatePolicyTargets(policy, prevComponent, currentComponent));
return policies;
}
private void updatePolicyTargets(PolicyDefinition policy, Component prevComponent, Component currComponent) {
log.debug("#updatePolicyTargets - updating policy {} targets for component {}", policy.getUniqueId(), currComponent.getUniqueId());
if (isEmpty(policy.getTargets())) {
return;
}
Map<PolicyTargetType, List<String>> targets = buildPolicyTargetsMap(policy, prevComponent, currComponent);
policy.setTargets(targets);
}
private Map<PolicyTargetType, List<String>> buildPolicyTargetsMap(PolicyDefinition policy, Component prevComponent, Component currComponent) {
List<String> componentInstanceTargets = resolveNewComponentInstanceTargets(policy, prevComponent, currComponent);
List<String> groupTargets = resolveNewGroupTargets(policy, prevComponent, currComponent);
Map<PolicyTargetType, List<String>> targets = new HashMap<>();
targets.put(PolicyTargetType.COMPONENT_INSTANCES, componentInstanceTargets);
targets.put(PolicyTargetType.GROUPS, groupTargets);
return targets;
}
private List<String> resolveNewComponentInstanceTargets(PolicyDefinition policy, Component prevComponent, Component currComponent) {
List<String> prevCompInstanceTargets = policy.resolveComponentInstanceTargets();
if (isEmpty(prevCompInstanceTargets)) {
return emptyList();
}
return resolveInstanceTargetsByInstanceName(prevComponent, currComponent, prevCompInstanceTargets);
}
private List<String> resolveNewGroupTargets(PolicyDefinition policy, Component prevComponent, Component currComponent) {
List<String> prevGroupTargets = policy.resolveGroupTargets();
if (isEmpty(prevGroupTargets)) {
return emptyList();
}
return resolveGroupTargetsByInvariantName(prevComponent, currComponent, prevGroupTargets);
}
private List<String> resolveInstanceTargetsByInstanceName(Component prevComponent, Component currComponent, List<String> prevCompInstanceTargets) {
return prevCompInstanceTargets.stream()
.map(prevInstId -> resolveNewInstId(prevComponent, currComponent, prevInstId))
.filter(Optional::isPresent)
.map(Optional::get)
.collect(toList());
}
private List<String> resolveGroupTargetsByInvariantName(Component prevComponent, Component currComponent, List<String> prevGroupTargets) {
return prevGroupTargets.stream()
.map(prevGroupId -> resolveNewGroupId(prevComponent, currComponent, prevGroupId))
.filter(Optional::isPresent)
.map(Optional::get)
.collect(toList());
}
private Optional<String> resolveNewInstId(Component prevCmpt, Component newCmpt, String prevInstanceId) {
return prevCmpt.getComponentInstanceById(prevInstanceId)
.map(ComponentInstance::getName)
.flatMap(newCmpt::getComponentInstanceByName)
.map(ComponentInstance::getUniqueId);
}
private Optional<String> resolveNewGroupId(Component prevCmpt, Component newCmpt, String prevGroupId) {
return prevCmpt.getGroupById(prevGroupId)
.map(GroupDefinition::getInvariantName)
.flatMap(newCmpt::getGroupByInvariantName)
.map(GroupDefinition::getUniqueId);
}
}
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