2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.yanglib.impl;
11 import com.google.common.base.Preconditions;
12 import com.google.common.io.ByteStreams;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import java.io.IOException;
15 import java.util.concurrent.ExecutionException;
16 import org.opendaylight.yanglib.api.YangLibService;
17 import org.opendaylight.yangtools.yang.common.Revision;
18 import org.opendaylight.yangtools.yang.model.repo.api.RevisionSourceIdentifier;
19 import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
20 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
21 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
22 import org.slf4j.Logger;
23 import org.slf4j.LoggerFactory;
26 * Provides schema sources from yang library.
28 public class YangLibServiceImpl implements YangLibService {
29 private static final Logger LOG = LoggerFactory.getLogger(YangLibServiceImpl.class);
31 private volatile SchemaRepository schemaRepository;
33 public YangLibServiceImpl() {
37 public void setSchemaRepository(final SchemaRepository schemaRepository) {
38 LOG.debug("Setting schema repository {}", schemaRepository);
39 this.schemaRepository = schemaRepository;
43 public String getSchema(final String name, final String revision) {
44 Preconditions.checkNotNull(schemaRepository, "Schema repository is not initialized");
45 LOG.debug("Attempting load for schema source {}:{}", name, revision);
46 final SourceIdentifier sourceId = RevisionSourceIdentifier.create(name,
47 revision.isEmpty() ? null : Revision.of(revision));
49 final ListenableFuture<YangTextSchemaSource> sourceFuture = schemaRepository.getSchemaSource(sourceId,
50 YangTextSchemaSource.class);
53 final YangTextSchemaSource source = sourceFuture.get();
54 return new String(ByteStreams.toByteArray(source.openStream()));
55 } catch (InterruptedException | ExecutionException | IOException e) {
56 throw new IllegalStateException("Unable to get schema " + sourceId, e);