1 files changed, 171 insertions, 0 deletions
diff --git a/ajsc-aai/src/main/java/org/openecomp/aai/introspection/ModelInjestor.java b/ajsc-aai/src/main/java/org/openecomp/aai/introspection/ModelInjestor.java
new file mode 100644
index 0000000..768090d
--- /dev/null
+++ b/ajsc-aai/src/main/java/org/openecomp/aai/introspection/ModelInjestor.java
@@ -0,0 +1,171 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.openecomp.aai
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. 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=========================================================
+ */
+
+package org.openecomp.aai.introspection;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.xml.bind.JAXBException;
+
+import org.eclipse.persistence.dynamic.DynamicType;
+import org.eclipse.persistence.jaxb.JAXBContextProperties;
+import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
+import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContextFactory;
+import org.openecomp.aai.util.AAIConstants;
+
+public class ModelInjestor {
+	
+	private Map<Version, DynamicJAXBContext> versionContextMap = new HashMap<>();
+	
+	
+	/**
+	 * Instantiates a new model injestor.
+	 */
+	private ModelInjestor() {
+		try {
+			injestModels();
+		} catch (FileNotFoundException | JAXBException e) {
+			System.exit(1);
+		}
+	}
+	
+	private static class Helper {
+		private static final ModelInjestor INSTANCE = new ModelInjestor();
+	}
+	
+	/**
+	 * Gets the single instance of ModelInjestor.
+	 *
+	 * @return single instance of ModelInjestor
+	 */
+	public synchronized static ModelInjestor getInstance() {
+		return Helper.INSTANCE;
+	}
+	
+	/**
+	 * Injest models.
+	 *
+	 * @throws FileNotFoundException the file not found exception
+	 * @throws JAXBException the JAXB exception
+	 */
+	private void injestModels() throws FileNotFoundException, JAXBException {
+		
+		for (Version version : Version.values()) {
+			this.injestModel(version);
+		}
+	}
+	
+	/**
+	 * Injest model.
+	 *
+	 * @param version the version
+	 * @throws JAXBException the JAXB exception
+	 * @throws FileNotFoundException the file not found exception
+	 */
+	private void injestModel (Version version) throws JAXBException, FileNotFoundException {
+		String fileName = AAIConstants.AAI_HOME_ETC_OXM + "aai_oxm_" + version.toString() + ".xml";
+		InputStream iStream = new FileInputStream(new File(fileName));
+		Map<String, Object> properties = new HashMap<String, Object>(); 
+		properties.put(JAXBContextProperties.OXM_METADATA_SOURCE, iStream);
+		final DynamicJAXBContext jaxbContext = DynamicJAXBContextFactory.createContextFromOXM(this.getClass().getClassLoader(), properties);
+		versionContextMap.put(version, jaxbContext);
+		
+	}
+	
+	/**
+	 * Gets the version from class name.
+	 *
+	 * @param classname the classname
+	 * @return the version from class name
+	 */
+	public Version getVersionFromClassName (String classname) {
+		Pattern p = Pattern.compile("\\.(v\\d+)\\.");
+		Matcher m = p.matcher(classname);
+		String version = "v2";
+		if (m.find()) {
+			version = m.group(1);
+		}
+		
+		return Version.valueOf(version);
+	}
+	
+	/**
+	 * Gets the context for URI.
+	 *
+	 * @param uri the uri
+	 * @return the context for URI
+	 */
+	public DynamicJAXBContext getContextForURI(String uri) {
+		DynamicJAXBContext result = null;
+		Pattern p = Pattern.compile("(v\\d+)\\/");
+		Matcher m = p.matcher(uri);
+		Version version = null;
+		if (m.find()) {
+			version = Version.valueOf(m.group(1));
+			result = versionContextMap.get(version);
+		}
+		
+		return result;
+	}
+	
+	/**
+	 * Gets the context for version.
+	 *
+	 * @param version the version
+	 * @return the context for version
+	 */
+	public DynamicJAXBContext getContextForVersion(Version version) {
+		DynamicJAXBContext result = null;
+		
+		result = versionContextMap.get(version);
+		
+		
+		return result;
+	}
+	
+	/**
+	 * Gets the dynamic type for class name.
+	 *
+	 * @param classname the classname
+	 * @return the dynamic type for class name
+	 */
+	public DynamicType getDynamicTypeForClassName(String classname) {
+		DynamicType result = null;
+		DynamicJAXBContext context = null;
+
+		Version version = this.getVersionFromClassName(classname);
+
+		context = versionContextMap.get(version);
+		
+		if (context != null) {
+			result = context.getDynamicType(classname);
+		}
+		
+		return result;
+	}
+	
+}