opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/schema/provider/impl/RemoteSchemaProvider.java

   1 /*
   2  * Copyright (c) 2015 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
   9 package org.opendaylight.controller.cluster.schema.provider.impl;
  10
  11 import akka.dispatch.OnComplete;
  12 import com.google.common.annotations.Beta;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import com.google.common.util.concurrent.SettableFuture;
  15 import org.opendaylight.controller.cluster.schema.provider.RemoteYangTextSourceProvider;
  16 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
  17 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
  18 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceProvider;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21 import scala.concurrent.ExecutionContext;
  22 import scala.concurrent.Future;
  23
  24 /**
  25  * Provides schema sources from {@link RemoteYangTextSourceProvider}.
  26  */
  27 @Beta
  28 public class RemoteSchemaProvider implements SchemaSourceProvider<YangTextSchemaSource> {
  29     private static final Logger LOG = LoggerFactory.getLogger(RemoteSchemaProvider.class);
  30
  31     private final RemoteYangTextSourceProvider remoteRepo;
  32     private final ExecutionContext executionContext;
  33
  34     public RemoteSchemaProvider(final RemoteYangTextSourceProvider remoteRepo,
  35             final ExecutionContext executionContext) {
  36         this.remoteRepo = remoteRepo;
  37         this.executionContext = executionContext;
  38     }
  39
  40     @Override
  41     public ListenableFuture<YangTextSchemaSource> getSource(final SourceIdentifier sourceIdentifier) {
  42         LOG.trace("Getting yang schema source for {}", sourceIdentifier.getName());
  43
  44         Future<YangTextSchemaSourceSerializationProxy> result = remoteRepo.getYangTextSchemaSource(sourceIdentifier);
  45
  46         final SettableFuture<YangTextSchemaSource> res = SettableFuture.create();
  47         result.onComplete(new OnComplete<YangTextSchemaSourceSerializationProxy>() {
  48             @Override
  49             public void onComplete(final Throwable throwable,
  50                     final YangTextSchemaSourceSerializationProxy yangTextSchemaSourceSerializationProxy) {
  51                 if (yangTextSchemaSourceSerializationProxy != null) {
  52                     res.set(yangTextSchemaSourceSerializationProxy.getRepresentation());
  53                 }
  54                 if (throwable != null) {
  55                     res.setException(throwable);
  56                 }
  57             }
  58         }, executionContext);
  59
  60         return res;
  61     }
  62 }