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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.appc.sdc.artifacts.helper;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectWriter;
import org.onap.appc.dg.dependencymanager.helper.DependencyModelParser;
import org.onap.appc.dg.flowbuilder.exception.InvalidDependencyModelException;
import org.onap.appc.dg.objects.Node;
import org.onap.appc.dg.objects.VnfcDependencyModel;
import org.onap.appc.domainmodel.Vnfc;
import org.onap.appc.exceptions.APPCException;
import java.util.ArrayList;
import java.util.List;
/**
* Provides method for genrating Dependency JSON from Tosca model
*/
public class DependencyModelGenerator {
private final EELFLogger logger = EELFManager.getInstance().getLogger(DependencyModelGenerator.class);
/**
*
* @param tosca - tosca string from SDC
* @param vnfType - Vnf Type from tosca
* @return - Dependency JSON in String format
* @throws APPCException is thrown if error occurs
*/
public String getDependencyModel(String tosca, String vnfType) throws APPCException {
logger.debug(String.format("Generating dependency model for vnfType : %s , TOSCA: %s ", vnfType ,tosca));
String dependencyJson;
DependencyModelParser dependencyModelParser = new DependencyModelParser();
VnfcDependencyModel vnfcDependencyModel = null;
try {
vnfcDependencyModel = dependencyModelParser.generateDependencyModel(tosca, vnfType);
} catch (InvalidDependencyModelException e) {
logger.error("Error generating dependency model");
throw new APPCException(e.getMessage(),e);
}
if (vnfcDependencyModel != null && !vnfcDependencyModel.getDependencies().isEmpty()) {
logger.debug(String.format("Dependency Model generated : %s ", vnfcDependencyModel.toString()));
List<org.onap.appc.sdc.artifacts.object.Vnfc> vnfcs = new ArrayList<>();
for (Node<Vnfc> node : vnfcDependencyModel.getDependencies()) {
org.onap.appc.sdc.artifacts.object.Vnfc vnfc = new org.onap.appc.sdc.artifacts.object.Vnfc();
vnfc.setVnfcType(node.getChild().getVnfcType());
vnfc.setMandatory(node.getChild().isMandatory());
vnfc.setResilienceType(node.getChild().getResilienceType());
if (node.getParents() != null && !node.getParents().isEmpty()) {
List<String> parents = new ArrayList<>();
for (Vnfc parentNode : node.getParents()) {
parents.add(parentNode.getVnfcType());
}
vnfc.setParents(parents);
}
vnfcs.add(vnfc);
}
ObjectMapper objectMapper = new ObjectMapper();
ObjectWriter writer = objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL).configure
(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true).writer().withRootName("vnfcs");
try {
dependencyJson = writer.writeValueAsString(vnfcs);
} catch (JsonProcessingException e) {
logger.error("Error converting dependency model to JSON");
throw new APPCException("Error converting dependency model to JSON",e);
}
} else {
logger.error("Error generating dependency model from tosca. Empty dependency model");
throw new APPCException("Error generating dependency model from tosca. Empty dependency model");
}
return dependencyJson;
}
}
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