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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property.
* Copyright © 2017 Amdocs
* 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=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.aai.modelloader.entity.model;
import org.onap.aai.modelloader.entity.Artifact;
import org.onap.aai.modelloader.service.ModelLoaderMsgs;
import org.onap.aai.cl.api.Logger;
import org.onap.aai.cl.eelf.LoggerFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
public class ModelV8ArtifactParser implements IModelParser {
private static String MODEL_NAME_VERSION_ID = "model-name-version-id";
private static String RELATIONSHIP_DATA = "relationship-data";
private static String RELATIONSHIP_KEY = "relationship-key";
private static String RELATIONSHIP_VALUE = "relationship-value";
private static String MODEL_ELEMENT_RELATIONSHIP_KEY = "model.model-name-version-id";
private static Logger logger = LoggerFactory.getInstance().getLogger(ModelV8ArtifactParser.class.getName());
@Override
public List<Artifact> parse(byte[] artifactPayload, String artifactName) {
String payload = new String(artifactPayload);
List<Artifact> modelList = new ArrayList<>();
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
InputSource is = new InputSource(new StringReader(payload));
Document doc = builder.parse(is);
ModelV8Artifact model = parseModel(doc.getDocumentElement(), payload);
if (model != null) {
logger.info(ModelLoaderMsgs.DISTRIBUTION_EVENT, "Model parsed =====>>>> " + "Model-Named-Version-Id: "+ model.getModelNameVersionId());
modelList.add(model);
}
else {
logger.error(ModelLoaderMsgs.ARTIFACT_PARSE_ERROR, "Unable to parse legacy model artifact " + artifactName);
return null;
}
}
catch (Exception ex) {
logger.error(ModelLoaderMsgs.ARTIFACT_PARSE_ERROR, "Unable to parse legacy model artifact " + artifactName + ": " + ex.getLocalizedMessage());
}
return modelList;
}
private ModelV8Artifact parseModel(Node modelNode, String payload) {
ModelV8Artifact model = new ModelV8Artifact();
model.setPayload(payload);
Element e = (Element)modelNode;
model.setModelNamespace(e.getAttribute("xmlns"));
parseNode(modelNode, model);
if (model.getModelNameVersionId() == null) {
return null;
}
return model;
}
private void parseNode(Node node, ModelV8Artifact model) {
if (node.getNodeName().equalsIgnoreCase(MODEL_NAME_VERSION_ID)) {
model.setModelNameVersionId(node.getTextContent().trim());
}
else if (node.getNodeName().equalsIgnoreCase(RELATIONSHIP_DATA)) {
parseRelationshipNode(node, model);
}
else {
NodeList nodeList = node.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
Node childNode = nodeList.item(i);
parseNode(childNode, model);
}
}
}
private void parseRelationshipNode(Node node, ModelV8Artifact model) {
String key = null;
String value = null;
NodeList nodeList = node.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
Node childNode = nodeList.item(i);
if (childNode.getNodeName().equalsIgnoreCase(RELATIONSHIP_KEY)) {
key = childNode.getTextContent().trim();
}
else if (childNode.getNodeName().equalsIgnoreCase(RELATIONSHIP_VALUE)) {
value = childNode.getTextContent().trim();
}
}
if ( (key != null) && (key.equalsIgnoreCase(MODEL_ELEMENT_RELATIONSHIP_KEY )) && (value != null) ) {
model.addDependentModelId(value);
}
}
}
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