2 * Copyright (c) 2014 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
8 package org.opendaylight.yangtools.yang.model.repo.api;
10 import com.google.common.annotations.Beta;
11 import com.google.common.base.Optional;
12 import com.google.common.base.Preconditions;
13 import com.google.common.collect.Interner;
14 import com.google.common.collect.Interners;
15 import java.util.regex.Pattern;
16 import org.opendaylight.yangtools.concepts.Identifier;
17 import org.opendaylight.yangtools.concepts.Immutable;
18 import org.opendaylight.yangtools.concepts.SemVer;
19 import org.opendaylight.yangtools.yang.common.SimpleDateFormatUtil;
20 import org.opendaylight.yangtools.yang.common.YangConstants;
23 * Base class of YANG Schema source identifiers.
25 * Source identifiers are designated to be carry only necessary information to
26 * look-up YANG model source and to be used by various SchemaSourceProviders.
28 * (For further reference see: http://tools.ietf.org/html/rfc6020#section-5.2
29 * and http://tools.ietf.org/html/rfc6022#section-3.1 ).
32 public abstract class SourceIdentifier implements Identifier, Immutable {
34 * Default revision for sources without specified revision. Marks the source
37 public static final String NOT_PRESENT_FORMATTED_REVISION = "0000-00-00";
41 * Simplified compiled revision pattern in format YYYY-mm-dd, which checks
42 * only distribution of number elements.
44 * For checking if supplied string is real date, use
45 * {@link SimpleDateFormatUtil} instead.
48 public static final Pattern REVISION_PATTERN = Pattern.compile("\\d\\d\\d\\d-\\d\\d-\\d\\d");
50 private static final Interner<SourceIdentifier> INTERNER = Interners.newWeakInterner();
52 private static final long serialVersionUID = 1L;
53 private final String revision;
54 private final String name;
58 * Creates new YANG Schema source identifier for sources without revision.
59 * {@link SourceIdentifier#NOT_PRESENT_FORMATTED_REVISION} as default
65 SourceIdentifier(final String name) {
66 this(name, NOT_PRESENT_FORMATTED_REVISION);
70 * Creates new YANG Schema source identifier.
74 * @param formattedRevision
75 * Revision of source in format YYYY-mm-dd
77 SourceIdentifier(final String name, final String formattedRevision) {
78 this.name = Preconditions.checkNotNull(name);
79 this.revision = Preconditions.checkNotNull(formattedRevision);
84 * Creates new YANG Schema source identifier.
88 * @param formattedRevision
89 * Revision of source in format YYYY-mm-dd. If not present,
90 * default value will be used.
92 SourceIdentifier(final String name, final Optional<String> formattedRevision) {
93 this(name, formattedRevision.or(NOT_PRESENT_FORMATTED_REVISION));
97 * Return an interned reference to a equivalent SemVerSourceIdentifier.
99 * @return Interned reference, or this object if it was interned.
101 public SourceIdentifier intern() {
102 return INTERNER.intern(this);
110 public String getName() {
115 * Returns revision of source or null if revision was not supplied.
117 * @return revision of source or null if revision was not supplied.
119 public String getRevision() {
125 * Since we've got two ways of model versioning (revision & semantic version),
126 * this method shouldn't be called directly anymore. Eventually, callers of this method
127 * should be notified before method gets deleted.
128 * @deprecated use either
130 * <li>{@link SemVerSourceIdentifier#create(String, SemVer)}</li>
131 * <li>{@link SemVerSourceIdentifier#create(String, Optional, SemVer)}</li>
132 * <li>{@link SemVerSourceIdentifier#create(String, String, SemVer)}</li>
136 * <li>{@link RevisionSourceIdentifier#create(String)}</li>
137 * <li>{@link RevisionSourceIdentifier#create(String, String)}</li>
138 * <li>{@link RevisionSourceIdentifier#create(String, Optional)}</li>
145 * Revision of source in format YYYY-mm-dd. If not present,
146 * default value will be used.
148 * @return particular SourceIdentifier instance
152 public static SourceIdentifier create(final String moduleName, final Optional<String> revision) {
153 return new RevisionSourceIdentifier(moduleName, revision);
157 * Returns filename for this YANG module as specified in RFC 6020.
159 * Returns filename in format <code>name ['@' revision] '.yang'</code>
161 * Where revision is date in format YYYY-mm-dd.
164 * @see <a href="http://tools.ietf.org/html/rfc6020#section-5.2">RFC6020</a>
166 * @return Filename for this source identifier.
168 public String toYangFilename() {
169 return toYangFileName(name, Optional.fromNullable(revision));
173 * Returns filename for this YANG module as specified in RFC 6020.
175 * Returns filename in format <code>moduleName ['@' revision] '.yang'</code>
177 * Where Where revision-date is in format YYYY-mm-dd.
180 * See http://tools.ietf.org/html/rfc6020#section-5.2
182 * @return Filename for this source identifier.
184 public static String toYangFileName(final String moduleName, final Optional<String> revision) {
185 StringBuilder filename = new StringBuilder(moduleName);
186 if (revision.isPresent()) {
187 filename.append('@');
188 filename.append(revision.get());
190 filename.append(YangConstants.RFC6020_YANG_FILE_EXTENSION);
191 return filename.toString();