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 final SchemaRepository schemaRepository;
34 public YangLibServiceImpl(final SchemaRepository schemaRepository) {
35 this.schemaRepository = schemaRepository;
39 public String getSchema(final String name, final String revision) {
40 Preconditions.checkNotNull(schemaRepository, "Schema repository is not initialized");
41 LOG.debug("Attempting load for schema source {}:{}", name, revision);
42 final SourceIdentifier sourceId = RevisionSourceIdentifier.create(name,
43 revision.isEmpty() ? null : Revision.of(revision));
45 final ListenableFuture<YangTextSchemaSource> sourceFuture = schemaRepository.getSchemaSource(sourceId,
46 YangTextSchemaSource.class);
49 final YangTextSchemaSource source = sourceFuture.get();
50 return new String(ByteStreams.toByteArray(source.openStream()), Charset.defaultCharset());
51 } catch (InterruptedException | ExecutionException | IOException e) {
52 throw new IllegalStateException("Unable to get schema " + sourceId, e);