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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2018 Ericsson. All rights reserved.
* Copyright (C) 2019 Nordix Foundation.
* ================================================================================
* 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.pdpx;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
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.ToscaServiceTemplate;
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.
*/
public class PolicyDecoderCsarPdpx implements PolicyDecoder<Csar, ToscaServiceTemplate> {
private static final Logger LOGGER = LoggerFactory.getLogger(PolicyDecoderCsarPdpx.class);
private final Gson gson = new GsonBuilder().serializeNulls().disableHtmlEscaping().create();
private PolicyDecoderCsarPdpxConfigurationParameterGroup decoderParameters;
@Override
public Collection<ToscaServiceTemplate> decode(final Csar csar) throws PolicyDecodingException {
final List<ToscaServiceTemplate> policies = 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 policy = new ToscaServiceTemplate();
final String policyName = decoderParameters.getPolicyNamePrefix() + "." + content.getIdentity();
// policy.setOnapName(decoderParameters.getOnapName());
policy.setName(policyName);
final ConfigBody configBody = new ConfigBody();
configBody.setService("hpaPolicy");
configBody.setPolicyName(policyName);
configBody.setDescription("OOF Policy");
configBody.setTemplateVersion("OpenSource.version.1");
configBody.setVersion(decoderParameters.getVersion());
configBody.setPriority(decoderParameters.getPriority());
configBody.setRiskLevel(decoderParameters.getRiskLevel());
configBody.setRiskType(decoderParameters.getRiskType());
configBody.setGuard("False");
content.setPolicyType("hpa");
content.getPolicyScope().add("HPA");
content.getPolicyScope().add(serviceName);
configBody.setContent(content);
// policy.setConfigBody(gson.toJson(configBody));
policies.add(policy);
}
}
return policies;
}
@Override
public boolean canHandle(final PolicyInput policyInput) {
return policyInput.getClass().isAssignableFrom(Csar.class);
}
/**
* 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) {
final String message = "Failed passing the csar file";
LOGGER.error(message, exp);
throw new PolicyDecodingException(message, exp);
}
return sdcCsarHelper;
}
@Override
public void configure(final String parameterGroupName) {
decoderParameters = ParameterService.get(parameterGroupName);
}
}
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