1 files changed, 194 insertions, 0 deletions
diff --git a/src/main/java/org/onap/aai/modelloader/entity/model/ModelArtifactParser.java b/src/main/java/org/onap/aai/modelloader/entity/model/ModelArtifactParser.java
new file mode 100644
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+++ b/src/main/java/org/onap/aai/modelloader/entity/model/ModelArtifactParser.java
@@ -0,0 +1,194 @@
+/**
+ * ============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.openecomp.cl.api.Logger;
+import org.openecomp.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.XMLConstants;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+
+
+public class ModelArtifactParser implements IModelParser {
+
+	private static String MODEL_VER = "model-ver";
+	private static String MODEL_VERSION_ID = "model-version-id";
+	private static String MODEL_INVARIANT_ID = "model-invariant-id";
+	private static String RELATIONSHIP = "relationship";
+	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-invariant-id";
+	private static String MODEL_VER_ELEMENT_RELATIONSHIP_KEY = "model-ver.model-version-id";
+	
+	private  static Logger logger = LoggerFactory.getInstance().getLogger(ModelArtifactParser.class.getName());
+	
+	public List<Artifact> parse(byte[] artifactPayload, String artifactName) {
+	  String payload = new String(artifactPayload);
+	  List<Artifact> modelList = new ArrayList<Artifact>();
+
+	  try {
+	    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+	    DocumentBuilder builder = factory.newDocumentBuilder();
+	    InputSource is = new InputSource(new StringReader(payload));
+	    Document doc = builder.parse(is);
+
+	    ModelArtifact model = parseModel(doc.getDocumentElement(), payload);
+
+	    if (model != null) {
+	      logger.info( ModelLoaderMsgs.DISTRIBUTION_EVENT, "Model parsed =====>>>> "
+	          + "Model-invariant-Id: "+ model.getModelInvariantId()
+	          + " Model-Version-Id: "+ model.getModelVerId());
+	      modelList.add(model);
+	    }
+	    else {
+	      logger.error(ModelLoaderMsgs.ARTIFACT_PARSE_ERROR, "Unable to parse artifact " + artifactName);
+	      return null;
+	    }
+	  }
+	  catch (Exception ex) {
+	    logger.error(ModelLoaderMsgs.ARTIFACT_PARSE_ERROR, "Unable to parse artifact " + artifactName + ": " + ex.getLocalizedMessage());
+	  }
+
+	  return modelList;
+	}
+
+	private ModelArtifact parseModel(Node modelNode, String payload) {
+	  ModelArtifact model = new ModelArtifact();
+	  model.setPayload(payload);
+
+	  Element e = (Element)modelNode;
+	  model.setModelNamespace(e.getAttribute("xmlns"));
+
+	  parseNode(modelNode, model);
+
+	  if ( (model.getModelInvariantId() == null) || (model.getModelVerId() == null) ){
+	    return null;
+	  }
+
+	  return model;
+	}
+
+	private void parseNode(Node node, ModelArtifact model) {
+	  if (node.getNodeName().equalsIgnoreCase(MODEL_INVARIANT_ID)) {
+	    model.setModelInvariantId(node.getTextContent().trim());
+	  }
+	  else if (node.getNodeName().equalsIgnoreCase(MODEL_VERSION_ID)) {
+	    model.setModelVerId(node.getTextContent().trim());
+	  }
+	  else if (node.getNodeName().equalsIgnoreCase(RELATIONSHIP)) {
+	    String dependentModelKey = parseRelationshipNode(node, model);
+	    if (dependentModelKey != null) {
+	      model.addDependentModelId(dependentModelKey);
+	    }
+	  }
+	  else {
+	    if (node.getNodeName().equalsIgnoreCase(MODEL_VER)) {
+	      model.setModelVer(node);
+	      if ( (model.getModelNamespace() != null) && (!model.getModelNamespace().isEmpty()) ) {
+	        Element e = (Element) node;
+	        e.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns", model.getModelNamespace());
+	      }
+	    }
+
+	    NodeList nodeList = node.getChildNodes();
+
+	    for (int i = 0; i < nodeList.getLength(); i++) {
+	      Node childNode = nodeList.item(i); 
+	      parseNode(childNode, model);
+	    }
+	  }
+	}
+
+	private String parseRelationshipNode(Node node, ModelArtifact model) {
+	  String currentKey = null;
+	  String currentValue = null;
+	  String modelVersionIdValue = null;
+	  String modelInvariantIdValue = null;
+
+	  NodeList nodeList = node.getChildNodes();
+	  for (int i = 0; i < nodeList.getLength(); i++) {
+	    Node childNode = nodeList.item(i);
+	    
+	    if (childNode.getNodeName().equalsIgnoreCase(RELATIONSHIP_DATA)) {
+	      NodeList relDataChildList = childNode.getChildNodes();
+	      
+	      for (int j = 0; j < relDataChildList.getLength(); j++) {
+	        Node relDataChildNode = relDataChildList.item(j);
+	        
+	        if (relDataChildNode.getNodeName().equalsIgnoreCase(RELATIONSHIP_KEY)) {
+	          currentKey = relDataChildNode.getTextContent().trim();
+
+	          if (currentValue != null) {
+	            if (currentKey.equalsIgnoreCase(MODEL_VER_ELEMENT_RELATIONSHIP_KEY)) {
+	              modelVersionIdValue = currentValue;
+	            }
+	            else if (currentKey.equalsIgnoreCase(MODEL_ELEMENT_RELATIONSHIP_KEY)) {
+	              modelInvariantIdValue = currentValue;
+	            }
+	            
+	            currentKey = null;
+	            currentValue = null;
+	          }
+	        }
+	        else if (relDataChildNode.getNodeName().equalsIgnoreCase(RELATIONSHIP_VALUE)) {
+	          currentValue = relDataChildNode.getTextContent().trim();
+
+	          if (currentKey != null) {
+              if (currentKey.equalsIgnoreCase(MODEL_VER_ELEMENT_RELATIONSHIP_KEY)) {
+                modelVersionIdValue = currentValue;
+              }
+              else if (currentKey.equalsIgnoreCase(MODEL_ELEMENT_RELATIONSHIP_KEY)) {
+                modelInvariantIdValue = currentValue;
+              }
+              
+              currentKey = null;
+              currentValue = null;
+	          }
+	        }
+	      }
+	    }
+	  }
+	  
+	  if ( (modelVersionIdValue != null) && (modelInvariantIdValue != null) ) {
+	    return modelInvariantIdValue + "|" + modelVersionIdValue;
+	  }
+	  
+	  return null;
+
+	}
+
+}