1 files changed, 154 insertions, 0 deletions
diff --git a/src/main/java/org/onap/aai/sparky/config/oxm/CrossEntityReferenceLookup.java b/src/main/java/org/onap/aai/sparky/config/oxm/CrossEntityReferenceLookup.java
new file mode 100644
index 0000000..81fe943
--- /dev/null
+++ b/src/main/java/org/onap/aai/sparky/config/oxm/CrossEntityReferenceLookup.java
@@ -0,0 +1,154 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.aai.sparky.config.oxm;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.eclipse.persistence.dynamic.DynamicType;
+import org.eclipse.persistence.internal.oxm.mappings.Descriptor;
+import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
+
+public class CrossEntityReferenceLookup implements OxmModelProcessor {
+
+  // TODO: kill singleton collaborator pattern
+  private static CrossEntityReferenceLookup instance;
+
+  private Map<String, HashMap<String, String>> crossReferenceEntityOxmModel;
+  private Map<String, CrossEntityReferenceDescriptor> crossReferenceEntityDescriptors;
+
+
+  private CrossEntityReferenceLookup() {
+    crossReferenceEntityOxmModel = new LinkedHashMap<String, HashMap<String, String>>();
+    crossReferenceEntityDescriptors = new HashMap<String, CrossEntityReferenceDescriptor>();
+  }
+
+  public synchronized static CrossEntityReferenceLookup getInstance() {
+
+    /*
+     * I hate this method and I want it to go away. The singleton pattern is transitory, I want this
+     * class to be wired via a bean reference instead. But from the starting point, it would require
+     * fixing all the classes across the code base up front and I don't want this task to expand
+     * beyond just refactoring the OxmModelLoader. For now I'll keep the singleton pattern, but I
+     * really want to get rid of it once we are properly spring wired.
+     */
+
+    if (instance == null) {
+      instance = new CrossEntityReferenceLookup();
+    }
+
+    return instance;
+  }
+
+
+  @Override
+  public void processOxmModel(DynamicJAXBContext jaxbContext) {
+
+    @SuppressWarnings("rawtypes")
+    List<Descriptor> descriptorsList = jaxbContext.getXMLContext().getDescriptors();
+
+    for (@SuppressWarnings("rawtypes")
+    Descriptor desc : descriptorsList) {
+
+      DynamicType entity = jaxbContext.getDynamicType(desc.getAlias());
+
+      LinkedHashMap<String, String> oxmProperties = new LinkedHashMap<String, String>();
+
+      // Not all fields have key attributes
+      if (desc.getPrimaryKeyFields() != null) {
+        oxmProperties.put("primaryKeyAttributeNames", desc.getPrimaryKeyFields().toString()
+            .replaceAll("/text\\(\\)", "").replaceAll("\\[", "").replaceAll("\\]", ""));
+      }
+
+      String entityName = desc.getDefaultRootElement();
+
+      // add entityName
+      oxmProperties.put("entityName", entityName);
+
+      Map<String, String> properties = entity.getDescriptor().getProperties();
+      if (properties != null) {
+        for (Map.Entry<String, String> entry : properties.entrySet()) {
+
+          if (entry.getKey().equalsIgnoreCase("crossEntityReference")) {
+            oxmProperties.put("crossEntityReference", entry.getValue());
+          }
+        }
+      }
+
+      if (oxmProperties.containsKey("crossEntityReference")) {
+        crossReferenceEntityOxmModel.put(entityName, oxmProperties);
+      }
+
+    }
+
+    for (Entry<String, HashMap<String, String>> crossRefModel : crossReferenceEntityOxmModel
+        .entrySet()) {
+      HashMap<String, String> attribute = crossRefModel.getValue();
+      CrossEntityReferenceDescriptor entity = new CrossEntityReferenceDescriptor();
+      entity.setEntityName(attribute.get("entityName"));
+      entity.setPrimaryKeyAttributeNames(
+          Arrays.asList(attribute.get("primaryKeyAttributeNames").replace(" ", "").split(",")));
+
+      List<String> crossEntityRefTokens =
+          Arrays.asList(attribute.get("crossEntityReference").split(","));
+
+      if (crossEntityRefTokens.size() >= 2) {
+        CrossEntityReference entityRef = new CrossEntityReference();
+        entityRef.setTargetEntityType(crossEntityRefTokens.get(0));
+
+        for (int i = 1; i < crossEntityRefTokens.size(); i++) {
+          entityRef.addReferenceAttribute(crossEntityRefTokens.get(i));
+        }
+
+        entity.setCrossEntityReference(entityRef);
+      }
+      crossReferenceEntityDescriptors.put(attribute.get("entityName"), entity);
+    }
+
+  }
+
+  public Map<String, HashMap<String, String>> getCrossReferenceEntityOxmModel() {
+    return crossReferenceEntityOxmModel;
+  }
+
+  public void setCrossReferenceEntityOxmModel(
+      Map<String, HashMap<String, String>> crossReferenceEntityOxmModel) {
+    this.crossReferenceEntityOxmModel = crossReferenceEntityOxmModel;
+  }
+
+  public Map<String, CrossEntityReferenceDescriptor> getCrossReferenceEntityDescriptors() {
+    return crossReferenceEntityDescriptors;
+  }
+
+  public void setCrossReferenceEntityDescriptors(
+      Map<String, CrossEntityReferenceDescriptor> crossReferenceEntityDescriptors) {
+    this.crossReferenceEntityDescriptors = crossReferenceEntityDescriptors;
+  }
+
+
+
+}