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.nio.charset.Charset;
16 import java.util.concurrent.ExecutionException;
17 import org.opendaylight.yanglib.api.YangLibService;
18 import org.opendaylight.yangtools.yang.common.Revision;
19 import org.opendaylight.yangtools.yang.model.repo.api.RevisionSourceIdentifier;
20 import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
21 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
22 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
23 import org.slf4j.Logger;
24 import org.slf4j.LoggerFactory;
27 * Provides schema sources from yang library.
29 public class YangLibServiceImpl implements YangLibService {
30 private static final Logger LOG = LoggerFactory.getLogger(YangLibServiceImpl.class);
32 private volatile SchemaRepository schemaRepository;
34 public YangLibServiceImpl() {
38 public void setSchemaRepository(final SchemaRepository schemaRepository) {
39 LOG.debug("Setting schema repository {}", schemaRepository);
40 this.schemaRepository = schemaRepository;
44 public String getSchema(final String name, final String revision) {
45 Preconditions.checkNotNull(schemaRepository, "Schema repository is not initialized");
46 LOG.debug("Attempting load for schema source {}:{}", name, revision);
47 final SourceIdentifier sourceId = RevisionSourceIdentifier.create(name,
48 revision.isEmpty() ? null : Revision.of(revision));
50 final ListenableFuture<YangTextSchemaSource> sourceFuture = schemaRepository.getSchemaSource(sourceId,
51 YangTextSchemaSource.class);
54 final YangTextSchemaSource source = sourceFuture.get();
55 return new String(ByteStreams.toByteArray(source.openStream()), Charset.defaultCharset());
56 } catch (InterruptedException | ExecutionException | IOException e) {
57 throw new IllegalStateException("Unable to get schema " + sourceId, e);