Renaming openecomp to onap
[aai/model-loader.git] / src / main / java / org / onap / aai / modelloader / entity / model / ModelArtifactParser.java
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 (file)
index 0000000..a362fce
--- /dev/null
@@ -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;
+
+       }
+
+}