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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* Modifications Copyright (C) 2020 AT&T Inc.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.distribution.reception.decoding.hpa;
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.onap.policy.common.parameters.ParameterService;
import org.onap.policy.distribution.model.Csar;
import org.onap.policy.distribution.model.PolicyInput;
import org.onap.policy.distribution.reception.decoding.PolicyDecoder;
import org.onap.policy.distribution.reception.decoding.PolicyDecodingException;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
import org.onap.policy.models.tosca.authorative.concepts.ToscaTopologyTemplate;
import org.onap.sdc.tosca.parser.api.ISdcCsarHelper;
import org.onap.sdc.tosca.parser.impl.SdcToscaParserFactory;
import org.onap.sdc.toscaparser.api.NodeTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Decodes PDP-X policies from a CSAR file and creates ToscaServiceTemplate for Policy Lifecycle API's.
*/
public class PolicyDecoderCsarHpa implements PolicyDecoder<Csar, ToscaServiceTemplate> {
private static final Logger LOGGER = LoggerFactory.getLogger(PolicyDecoderCsarHpa.class);
//
// This is initialized in configure() but then never used here
//
@SuppressWarnings("unused")
private PolicyDecoderCsarHpaParameters decoderParameters;
public static final String TOSCA_POLICY_SCOPE = "scope";
public static final String TOSCA_POLICY_SERVICES = "services";
public static final String TOSCA_POLICY_RESOURCES = "resources";
public static final String TOSCA_POLICY_IDENTITY = "identity";
public static final String TOSCA_POLICY_FLAVORFEATURES = "flavorfeatures";
public static final String TOSCA_POLICY_HPA_OOF = "Optimization";
@Override
public Collection<ToscaServiceTemplate> decode(final Csar csar) throws PolicyDecodingException {
final List<ToscaServiceTemplate> entities = new ArrayList<>();
final ISdcCsarHelper sdcCsarHelper = parseCsar(csar);
final List<NodeTemplate> lnodeVf = sdcCsarHelper.getServiceVfList();
LOGGER.debug("the size of Vf = {}", lnodeVf.size());
final ExtractFromNode extractFromNode = new ExtractFromNode();
extractFromNode.setSdcCsarHelper(sdcCsarHelper);
final String serviceName = sdcCsarHelper.getServiceMetadata().getValue("name");
LOGGER.debug("the name of the service = {}", serviceName);
for (final NodeTemplate node : lnodeVf) {
final Content content = extractFromNode.extractInfo(node);
if (content != null) {
final ToscaServiceTemplate entity = new ToscaServiceTemplate();
Map<String, Object> props = new LinkedHashMap<>();
props.put(TOSCA_POLICY_SCOPE, content.getScope());
props.put(TOSCA_POLICY_SERVICES, content.getServices());
props.put(TOSCA_POLICY_RESOURCES, content.getResources());
props.put(TOSCA_POLICY_IDENTITY, content.getIdentity());
props.put(TOSCA_POLICY_FLAVORFEATURES, content.getFlavorFeatures());
ToscaPolicy policy = new ToscaPolicy();
policy.setProperties(props);
Map<String, ToscaPolicy> map = new LinkedHashMap<>();
String type = content.getPolicyType();
map.put(type, policy);
List<Map<String, ToscaPolicy>> policies = new ArrayList<>();
policies.add(map);
ToscaTopologyTemplate topologyTemplate = new ToscaTopologyTemplate();
topologyTemplate.setPolicies(policies);
entity.setToscaTopologyTemplate(topologyTemplate);
entities.add(entity);
}
}
return entities;
}
@Override
public boolean canHandle(final PolicyInput policyInput) {
return Csar.class.isAssignableFrom(policyInput.getClass());
}
/**
* Parse the input Csar using SDC TOSCA parser.
*
* @param csar represents the service TOSCA Csar
* @return the object to represents the content of input csar
* @throws PolicyDecodingException if parse fails
*/
public ISdcCsarHelper parseCsar(final Csar csar) throws PolicyDecodingException {
ISdcCsarHelper sdcCsarHelper;
try {
final SdcToscaParserFactory factory = SdcToscaParserFactory.getInstance();
LOGGER.debug("Csar File Path = {}", csar.getCsarPath());
final File csarFile = new File(csar.getCsarPath());
sdcCsarHelper = factory.getSdcCsarHelper(csarFile.getAbsolutePath());
} catch (final Exception exp) {
throw new PolicyDecodingException( "Failed passing the csar file", exp);
}
return sdcCsarHelper;
}
@Override
public void configure(final String parameterGroupName) {
decoderParameters = ParameterService.get(parameterGroupName);
}
}
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