1 files changed, 158 insertions, 0 deletions
diff --git a/src/main/java/org/openecomp/schema/RelationshipSchemaLoader.java b/src/main/java/org/openecomp/schema/RelationshipSchemaLoader.java
new file mode 100644
index 0000000..51b33d0
--- /dev/null
+++ b/src/main/java/org/openecomp/schema/RelationshipSchemaLoader.java
@@ -0,0 +1,158 @@
+/**
+ * ============LICENSE_START=======================================================
+ * Gizmo
+ * ================================================================================
+ * 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.openecomp.schema;
+
+import org.apache.commons.io.IOUtils;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.crud.exception.CrudException;
+import org.openecomp.crud.logging.CrudServiceMsgs;
+import org.openecomp.crud.util.CrudServiceConstants;
+import org.openecomp.crud.util.FileWatcher;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.SortedSet;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.TreeSet;
+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;
+
+
+public class RelationshipSchemaLoader {
+
+  private static Map<String, RelationshipSchema> versionContextMap
+      = new ConcurrentHashMap<String, RelationshipSchema>();
+  private static SortedSet<Integer> versions = new TreeSet<Integer>();
+  private static Map<String, Timer> timers = new ConcurrentHashMap<String, Timer>();
+
+  final static Pattern filePattern = Pattern.compile("aai_relationship_(.*).json");
+
+
+  private static org.openecomp.cl.api.Logger logger = LoggerFactory.getInstance()
+      .getLogger(RelationshipSchemaLoader.class.getName());
+
+  public synchronized static void loadModels() {
+
+    File[] listOfFiles = new File(CrudServiceConstants.CRD_HOME_MODEL).listFiles();
+
+    if (listOfFiles != null) {
+      for (File file : listOfFiles) {
+        if (file.isFile()) {
+          Matcher matcher = filePattern.matcher(file.getName());
+          if (matcher.matches()) {
+            try {
+              RelationshipSchemaLoader.loadModel(matcher.group(1), file);
+            } catch (Exception e) {
+              logger.error(CrudServiceMsgs.INVALID_OXM_FILE, file.getName(), e.getMessage());
+            }
+          }
+
+        }
+      }
+    } else {
+      logger.error(CrudServiceMsgs.INVALID_OXM_DIR, CrudServiceConstants.CRD_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(CrudServiceMsgs.OXM_FILE_CHANGED, file.getName());
+
+        try {
+          RelationshipSchemaLoader.loadModel(version, file);
+        } catch (Exception e) {
+          e.printStackTrace();
+        }
+
+      }
+    };
+
+    if (!timers.containsKey(version)) {
+      Timer timer = new Timer("aai_relationship_" + version);
+      timer.schedule(task, new Date(), 10000);
+      timers.put(version, timer);
+
+    }
+  }
+
+  private synchronized static void loadModel(String version, File file)
+      throws JAXBException, IOException, CrudException {
+
+    InputStream inputStream = new FileInputStream(file);
+    String content = IOUtils.toString(inputStream, "UTF-8");
+    versionContextMap.put(version, new RelationshipSchema(content));
+    addtimer(version, file);
+    versions.add(Integer.parseInt(version.substring(1)));
+  }
+
+  public static RelationshipSchema getSchemaForVersion(String version) throws CrudException {
+    if (versionContextMap == null || versionContextMap.isEmpty()) {
+      loadModels();
+    } else if (!versionContextMap.containsKey(version)) {
+      try {
+        loadModel(version, new File(CrudServiceConstants.CRD_HOME_MODEL + "aai_relationship_"
+            + version + ".json"));
+      } catch (Exception e) {
+        throw new CrudException("", Status.NOT_FOUND);
+      }
+    }
+
+    return versionContextMap.get(version);
+  }
+
+  public static String getLatestSchemaVersion() throws CrudException {
+    return "v" + versions.last();
+  }
+
+  public static Map<String, RelationshipSchema> getVersionContextMap() {
+    return versionContextMap;
+  }
+
+  public static void setVersionContextMap(HashMap<String, RelationshipSchema> versionContextMap) {
+    RelationshipSchemaLoader.versionContextMap = versionContextMap;
+  }
+
+  public static void main(String[] args) throws FileNotFoundException, Exception {
+    File initialFile = new File("C:\\Software\\gizmo\\src\\main\\java\\org\\openecomp\\schema\\vio.json");
+
+    loadModel("v8", initialFile);
+  }
+
+}