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 com.google.common.util.concurrent.ListenableFuture;
  14 import java.util.HashSet;
  15 import java.util.Set;
  16 import javax.annotation.concurrent.GuardedBy;
  17 import org.opendaylight.controller.sal.core.api.model.SchemaService;
  18 import org.opendaylight.controller.sal.core.api.model.YangTextSourceProvider;
  19 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  20 import org.opendaylight.mdsal.dom.api.DOMYangTextSourceProvider;
  21 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  23 import org.opendaylight.yangtools.yang.model.api.Module;
  24 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  25 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
  26 import org.opendaylight.yangtools.yang.model.api.SchemaContextProvider;
  27 import org.opendaylight.yangtools.yang.model.repo.api.MissingSchemaSourceException;
  28 import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceException;
  29 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
  30 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
  31
  32 @Deprecated
  33 public final class GlobalBundleScanningSchemaServiceImpl implements SchemaContextProvider, SchemaService,
  34         YangTextSourceProvider, AutoCloseable {
  35
  36     @GuardedBy("lock")
  37     private final Set<ListenerRegistration<?>> listeners = new HashSet<>();
  38     private final Object lock = new Object();
  39     private final DOMSchemaService schemaService;
  40     private final DOMYangTextSourceProvider yangProvider;
  41
  42     private GlobalBundleScanningSchemaServiceImpl(final DOMSchemaService schemaService) {
  43         this.schemaService = Preconditions.checkNotNull(schemaService);
  44         this.yangProvider = (DOMYangTextSourceProvider) schemaService.getSupportedExtensions()
  45                 .get(DOMYangTextSourceProvider.class);
  46     }
  47
  48     public static GlobalBundleScanningSchemaServiceImpl createInstance(final DOMSchemaService schemaService) {
  49         return new GlobalBundleScanningSchemaServiceImpl(schemaService);
  50     }
  51
  52     @Override
  53     public SchemaContext getSchemaContext() {
  54         return schemaService.getGlobalContext();
  55     }
  56
  57     @Override
  58     public SchemaContext getGlobalContext() {
  59         return schemaService.getGlobalContext();
  60     }
  61
  62     @Override
  63     public void addModule(final Module module) {
  64         throw new UnsupportedOperationException();
  65     }
  66
  67     @Override
  68     public SchemaContext getSessionContext() {
  69         throw new UnsupportedOperationException();
  70     }
  71
  72     @Override
  73     public void removeModule(final Module module) {
  74         throw new UnsupportedOperationException();
  75     }
  76
  77     @Override
  78     public ListenerRegistration<SchemaContextListener> registerSchemaContextListener(
  79             final SchemaContextListener listener) {
  80         synchronized (lock) {
  81             final ListenerRegistration<SchemaContextListener> reg = schemaService.registerSchemaContextListener(
  82                 listener);
  83
  84             final ListenerRegistration<SchemaContextListener> ret =
  85                     new AbstractListenerRegistration<SchemaContextListener>(listener) {
  86                 @Override
  87                 protected void removeRegistration() {
  88                     synchronized (lock) {
  89                         listeners.remove(this);
  90                     }
  91                     reg.close();
  92                 }
  93             };
  94
  95             listeners.add(ret);
  96             return ret;
  97         }
  98     }
  99
 100     @Override
 101     public void close() {
 102         synchronized (lock) {
 103             for (ListenerRegistration<?> l : listeners) {
 104                 l.close();
 105             }
 106             listeners.clear();
 107         }
 108     }
 109
 110     @SuppressWarnings("unchecked")
 111     @Override
 112     public CheckedFuture<YangTextSchemaSource, SchemaSourceException> getSource(
 113             final SourceIdentifier sourceIdentifier) {
 114         if (yangProvider == null) {
 115             return Futures.immediateFailedCheckedFuture(new MissingSchemaSourceException(
 116                 "Source provider is not available", sourceIdentifier));
 117         }
 118
 119         return Futures.makeChecked((ListenableFuture<YangTextSchemaSource>) yangProvider.getSource(sourceIdentifier),
 120                 e -> new SchemaSourceException("Error retrieving source", e));
 121     }
 122 }