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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 java.util.List;
import java.util.function.BiFunction;
import javax.ws.rs.core.Response;
import org.apache.commons.lang3.tuple.Pair;
import org.onap.policy.common.utils.services.Registry;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.pap.concepts.PdpDeployPolicies;
import org.onap.policy.models.pap.concepts.PdpGroupDeployResponse;
import org.onap.policy.models.pdp.concepts.PdpGroup;
import org.onap.policy.models.pdp.concepts.PdpGroups;
import org.onap.policy.models.pdp.concepts.PdpSubGroup;
import org.onap.policy.models.pdp.concepts.PdpUpdate;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyIdentifier;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyIdentifierOptVersion;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier;
import org.onap.policy.pap.main.PolicyPapRuntimeException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Provider for PAP component to deploy PDP groups. The following items must be in the
* {@link Registry}:
* <ul>
* <li>PDP Modification Lock</li>
* <li>PDP Modify Request Map</li>
* <li>PAP DAO Factory</li>
* </ul>
*/
public class PdpGroupDeployProvider extends ProviderBase<PdpGroupDeployResponse> {
private static final Logger logger = LoggerFactory.getLogger(PdpGroupDeployProvider.class);
/**
* Constructs the object.
*/
public PdpGroupDeployProvider() {
super();
}
/**
* Deploys or updates PDP groups.
*
* @param groups PDP group configurations
* @return a pair containing the status and the response
*/
public Pair<Response.Status, PdpGroupDeployResponse> deployGroup(PdpGroups groups) {
return process(groups, this::deployGroups);
}
/**
* Deploys or updates PDP groups.
*
* @param data session data
* @param groups PDP group configurations
* @return a list of requests that should be sent to configure the PDPs
*/
private List<PdpUpdate> deployGroups(SessionData data, PdpGroups groups) {
throw new PolicyPapRuntimeException("not implemented yet");
}
/**
* Deploys or updates PDP policies.
*
* @param policies PDP policies
* @return a pair containing the status and the response
*/
public Pair<Response.Status, PdpGroupDeployResponse> deployPolicies(PdpDeployPolicies policies) {
return process(policies, this::deploySimplePolicies);
}
/**
* Deploys or updates PDP policies using the simple API.
*
* @param data session data
* @param extPolicies external PDP policies
* @return a list of requests that should be sent to configure the PDPs
*/
private void deploySimplePolicies(SessionData data, PdpDeployPolicies policies) {
for (ToscaPolicyIdentifierOptVersion desiredPolicy : policies.getPolicies()) {
try {
processPolicy(data, desiredPolicy);
} catch (PfModelException e) {
// no need to log the error here, as it will be logged by the invoker
logger.warn("failed to deploy policy: {}", desiredPolicy);
throw new PolicyPapRuntimeException(DB_ERROR_MSG, e);
} catch (RuntimeException e) {
// no need to log the error here, as it will be logged by the invoker
logger.warn("failed to deploy policy: {}", desiredPolicy);
throw e;
}
}
}
@Override
protected BiFunction<PdpGroup, PdpSubGroup, Boolean> makeUpdater(ToscaPolicy policy) {
ToscaPolicyIdentifier desiredIdent = policy.getIdentifier();
ToscaPolicyTypeIdentifier desiredType = policy.getTypeIdentifier();
return (group, subgroup) -> {
if (!subgroup.getSupportedPolicyTypes().contains(desiredType)) {
// doesn't support the desired policy type
return false;
}
if (subgroup.getPolicies().contains(desiredIdent)) {
// already has the desired policy
return false;
}
if (subgroup.getPdpInstances().isEmpty()) {
throw new PolicyPapRuntimeException("group " + group.getName() + " subgroup " + subgroup.getPdpType()
+ " has no active PDPs");
}
// add the policy to the subgroup
subgroup.getPolicies().add(desiredIdent);
return true;
};
}
@Override
public PdpGroupDeployResponse makeResponse(String errorMsg) {
PdpGroupDeployResponse resp = new PdpGroupDeployResponse();
resp.setErrorDetails(errorMsg);
return resp;
}
}
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