opendaylight/md-sal/sal-schema-service/src/main/java/org/opendaylight/controller/sal/schema/service/impl/GlobalBundleScanningSchemaServiceImpl.java

   1 /*
   2  * Copyright (c) 2013 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.sal.schema.service.impl;
   9
  10 import com.google.common.base.Preconditions;
  11 import com.google.common.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.Futures;
  13 import java.util.HashSet;
  14 import java.util.Set;
  15 import javax.annotation.concurrent.GuardedBy;
  16 import org.opendaylight.controller.sal.core.api.model.SchemaService;
  17 import org.opendaylight.controller.sal.core.api.model.YangTextSourceProvider;
  18 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  19 import org.opendaylight.mdsal.dom.api.DOMYangTextSourceProvider;
  20 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  21 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  22 import org.opendaylight.yangtools.yang.model.api.Module;
  23 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  24 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
  25 import org.opendaylight.yangtools.yang.model.api.SchemaContextProvider;
  26 import org.opendaylight.yangtools.yang.model.repo.api.MissingSchemaSourceException;
  27 import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceException;
  28 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
  29 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
  30
  31 @Deprecated
  32 public final class GlobalBundleScanningSchemaServiceImpl implements SchemaContextProvider, SchemaService,
  33         YangTextSourceProvider, AutoCloseable {
  34
  35     @GuardedBy("lock")
  36     private final Set<ListenerRegistration<?>> listeners = new HashSet<>();
  37     private final Object lock = new Object();
  38     private final DOMSchemaService schemaService;
  39     private final DOMYangTextSourceProvider yangProvider;
  40
  41     private GlobalBundleScanningSchemaServiceImpl(final DOMSchemaService schemaService) {
  42         this.schemaService = Preconditions.checkNotNull(schemaService);
  43         this.yangProvider = (DOMYangTextSourceProvider) schemaService.getSupportedExtensions()
  44                 .get(DOMYangTextSourceProvider.class);
  45     }
  46
  47     public static GlobalBundleScanningSchemaServiceImpl createInstance(final DOMSchemaService schemaService) {
  48         return new GlobalBundleScanningSchemaServiceImpl(schemaService);
  49     }
  50
  51     @Override
  52     public SchemaContext getSchemaContext() {
  53         return schemaService.getGlobalContext();
  54     }
  55
  56     @Override
  57     public SchemaContext getGlobalContext() {
  58         return schemaService.getGlobalContext();
  59     }
  60
  61     @Override
  62     public void addModule(final Module module) {
  63         throw new UnsupportedOperationException();
  64     }
  65
  66     @Override
  67     public SchemaContext getSessionContext() {
  68         throw new UnsupportedOperationException();
  69     }
  70
  71     @Override
  72     public void removeModule(final Module module) {
  73         throw new UnsupportedOperationException();
  74     }
  75
  76     @Override
  77     public ListenerRegistration<SchemaContextListener> registerSchemaContextListener(
  78             final SchemaContextListener listener) {
  79         synchronized (lock) {
  80             final ListenerRegistration<SchemaContextListener> reg = schemaService.registerSchemaContextListener(
  81                 listener);
  82
  83             final ListenerRegistration<SchemaContextListener> ret =
  84                     new AbstractListenerRegistration<SchemaContextListener>(listener) {
  85                 @Override
  86                 protected void removeRegistration() {
  87                     synchronized (lock) {
  88                         listeners.remove(this);
  89                     }
  90                     reg.close();
  91                 }
  92             };
  93
  94             listeners.add(ret);
  95             return ret;
  96         }
  97     }
  98
  99     @Override
 100     public void close() {
 101         synchronized (lock) {
 102             for (ListenerRegistration<?> l : listeners) {
 103                 l.close();
 104             }
 105             listeners.clear();
 106         }
 107     }
 108
 109     @SuppressWarnings("unchecked")
 110     @Override
 111     public CheckedFuture<YangTextSchemaSource, SchemaSourceException> getSource(
 112             final SourceIdentifier sourceIdentifier) {
 113         if (yangProvider == null) {
 114             return Futures.immediateFailedCheckedFuture(new MissingSchemaSourceException(
 115                 "Source provider is not available", sourceIdentifier));
 116         }
 117
 118         return (CheckedFuture<YangTextSchemaSource, SchemaSourceException>) yangProvider.getSource(sourceIdentifier);
 119     }
 120 }