--- /dev/null
+/**
+ * ============LICENSE_START=======================================================
+ * DataRouter
+ * ================================================================================
+ * 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 and OpenECOMP are trademarks
+ * and service marks of AT&T Intellectual Property.
+ */
+package org.openecomp.datarouter.util;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.ws.rs.core.Response.Status;
+import javax.xml.bind.JAXBException;
+
+import org.eclipse.persistence.jaxb.JAXBContextProperties;
+import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
+import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContextFactory;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.datarouter.logging.DataRouterMsgs;
+
+import org.openecomp.datarouter.util.ExternalOxmModelProcessor;
+
+public class OxmModelLoader {
+
+ private static Map<String, DynamicJAXBContext> versionContextMap = new ConcurrentHashMap<String, DynamicJAXBContext>();
+ private static Map<String, Timer> timers = new ConcurrentHashMap<String, Timer>();
+ private static List<ExternalOxmModelProcessor> oxmModelProcessorRegistry = new ArrayList<ExternalOxmModelProcessor>();
+ final static Pattern p = Pattern.compile("aai_oxm_(.*).xml");
+
+
+
+ private static org.openecomp.cl.api.Logger logger = LoggerFactory.getInstance()
+ .getLogger(OxmModelLoader.class.getName());
+
+ public synchronized static void loadModels() {
+
+ File[] listOfFiles = new File(DataRouterConstants.DR_HOME_MODEL).listFiles();
+
+ if (listOfFiles != null) {
+ for (File file : listOfFiles) {
+ if (file.isFile()) {
+ Matcher m = p.matcher(file.getName());
+ if (m.matches()) {
+ try {
+ OxmModelLoader.loadModel(m.group(1), file);
+ } catch (Exception e) {
+ logger.error(DataRouterMsgs.INVALID_OXM_FILE, file.getName(), e.getMessage());
+ }
+ }
+
+ }
+ }
+ } else {
+ logger.error(DataRouterMsgs.INVALID_OXM_DIR, DataRouterConstants.DR_HOME_MODEL);
+ }
+
+
+ }
+
+ private static void addtimer(String version,File file){
+ TimerTask task = null;
+ task = new FileWatcher(
+ file) {
+ protected void onChange(File file) {
+ // here we implement the onChange
+ logger.info(DataRouterMsgs.FILE_CHANGED, file.getName());
+
+ try {
+ OxmModelLoader.loadModel(version,file);
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+
+ }
+ };
+
+ if (!timers.containsKey(version)) {
+ Timer timer = new Timer("oxm-"+version);
+ timer.schedule(task, new Date(), 10000);
+ timers.put(version, timer);
+
+ }
+ }
+
+ private synchronized static void loadModel(String version,File file) throws JAXBException, FileNotFoundException {
+
+
+ InputStream iStream = new FileInputStream(file);
+ Map<String, Object> properties = new HashMap<String, Object>();
+ properties.put(JAXBContextProperties.OXM_METADATA_SOURCE, iStream);
+ final DynamicJAXBContext jaxbContext = DynamicJAXBContextFactory
+ .createContextFromOXM(Thread.currentThread().getContextClassLoader(), properties);
+ versionContextMap.put(version, jaxbContext);
+ if ( oxmModelProcessorRegistry != null) {
+ for ( ExternalOxmModelProcessor processor : oxmModelProcessorRegistry ) {
+ processor.onOxmVersionChange(Version.valueOf(version), jaxbContext );
+ }
+ }
+ addtimer(version,file);
+
+ }
+
+ public static DynamicJAXBContext getContextForVersion(String version) throws Exception {
+ if (versionContextMap == null || versionContextMap.isEmpty()) {
+ loadModels();
+ } else if (!versionContextMap.containsKey(version)) {
+ try {
+ loadModel(version,new File (DataRouterConstants.DR_HOME_MODEL + "aai_oxm_" + version + ".xml"));
+ } catch (Exception e) {
+ throw new Exception(Status.NOT_FOUND.toString());
+ }
+ }
+
+ return versionContextMap.get(version);
+ }
+
+ public static Map<String, DynamicJAXBContext> getVersionContextMap() {
+ return versionContextMap;
+ }
+
+ public static void setVersionContextMap(Map<String, DynamicJAXBContext> versionContextMap) {
+ OxmModelLoader.versionContextMap = versionContextMap;
+ }
+
+ public synchronized static void registerExternalOxmModelProcessors(Collection<ExternalOxmModelProcessor> processors) {
+ if(processors != null) {
+ for(ExternalOxmModelProcessor processor : processors) {
+ if(!oxmModelProcessorRegistry.contains(processor)) {
+ oxmModelProcessorRegistry.add(processor);
+ }
+ }
+ }
+ }
+
+}
Code Review / aai / data-router.git / blobdiff