opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/config/yang/md/sal/dom/impl/SchemaServiceImplSingletonModuleFactory.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.config.yang.md.sal.dom.impl;
   9
  10 import java.util.Collections;
  11 import java.util.Set;
  12
  13 import org.opendaylight.controller.config.api.DependencyResolver;
  14 import org.opendaylight.controller.config.api.DependencyResolverFactory;
  15 import org.opendaylight.controller.config.api.ModuleIdentifier;
  16 import org.opendaylight.controller.config.spi.Module;
  17 import org.osgi.framework.BundleContext;
  18
  19 /**
  20 *
  21 */
  22 public class SchemaServiceImplSingletonModuleFactory extends
  23         org.opendaylight.controller.config.yang.md.sal.dom.impl.AbstractSchemaServiceImplSingletonModuleFactory {
  24
  25     private static final ModuleIdentifier IDENTIFIER = new ModuleIdentifier(NAME, "yang-schema-service");
  26     public static SchemaServiceImplSingletonModule SINGLETON;
  27
  28     @Override
  29     public Module createModule(String instanceName, DependencyResolver dependencyResolver, BundleContext bundleContext) {
  30         throw new UnsupportedOperationException("Only default instance supported.");
  31     }
  32
  33     @Override
  34     public Set<SchemaServiceImplSingletonModule> getDefaultModules(DependencyResolverFactory dependencyResolverFactory,
  35             BundleContext bundleContext) {
  36         DependencyResolver dependencyResolver = dependencyResolverFactory.createDependencyResolver(IDENTIFIER);
  37
  38         if (SINGLETON == null) {
  39             SINGLETON = new SchemaServiceImplSingletonModule(IDENTIFIER, dependencyResolver);
  40             SINGLETON.setBundleContext(bundleContext);
  41         }
  42         return Collections.singleton(SINGLETON);
  43     }
  44 }