2 * Copyright (c) 2013 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.binding;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import com.google.common.base.CharMatcher;
13 import com.google.common.base.Preconditions;
14 import com.google.common.base.Splitter;
15 import com.google.common.collect.ImmutableSet;
16 import com.google.common.collect.Interner;
17 import com.google.common.collect.Interners;
18 import java.util.Optional;
20 import java.util.regex.Matcher;
21 import java.util.regex.Pattern;
22 import org.opendaylight.yangtools.yang.common.QName;
23 import org.opendaylight.yangtools.yang.common.QNameModule;
24 import org.opendaylight.yangtools.yang.common.Revision;
26 public final class BindingMapping {
28 public static final String VERSION = "0.6";
30 public static final Set<String> JAVA_RESERVED_WORDS = ImmutableSet.of("abstract", "assert", "boolean", "break",
31 "byte", "case", "catch", "char", "class", "const", "continue", "default", "double", "do", "else", "enum",
32 "extends", "false", "final", "finally", "float", "for", "goto", "if", "implements", "import", "instanceof",
33 "int", "interface", "long", "native", "new", "null", "package", "private", "protected", "public", "return",
34 "short", "static", "strictfp", "super", "switch", "synchronized", "this", "throw", "throws", "transient",
35 "true", "try", "void", "volatile", "while");
37 public static final String DATA_ROOT_SUFFIX = "Data";
38 public static final String RPC_SERVICE_SUFFIX = "Service";
39 public static final String NOTIFICATION_LISTENER_SUFFIX = "Listener";
40 public static final String QNAME_STATIC_FIELD_NAME = "QNAME";
41 public static final String PACKAGE_PREFIX = "org.opendaylight.yang.gen.v1";
42 public static final String AUGMENTATION_FIELD = "augmentation";
44 private static final Splitter CAMEL_SPLITTER = Splitter.on(CharMatcher.anyOf(" _.-/").precomputed())
45 .omitEmptyStrings().trimResults();
46 private static final Pattern COLON_SLASH_SLASH = Pattern.compile("://", Pattern.LITERAL);
47 private static final String QUOTED_DOT = Matcher.quoteReplacement(".");
48 private static final Splitter DOT_SPLITTER = Splitter.on('.');
50 public static final String MODULE_INFO_CLASS_NAME = "$YangModuleInfoImpl";
51 public static final String MODEL_BINDING_PROVIDER_CLASS_NAME = "$YangModelBindingProvider";
53 public static final String RPC_INPUT_SUFFIX = "Input";
54 public static final String RPC_OUTPUT_SUFFIX = "Output";
56 private static final Interner<String> PACKAGE_INTERNER = Interners.newWeakInterner();
58 private BindingMapping() {
59 throw new UnsupportedOperationException("Utility class should not be instantiated");
62 public static String getRootPackageName(final QName module) {
63 return getRootPackageName(module.getModule());
66 public static String getRootPackageName(final QNameModule module) {
67 checkArgument(module != null, "Module must not be null");
68 checkArgument(module.getRevision() != null, "Revision must not be null");
69 checkArgument(module.getNamespace() != null, "Namespace must not be null");
70 final StringBuilder packageNameBuilder = new StringBuilder();
72 packageNameBuilder.append(BindingMapping.PACKAGE_PREFIX);
73 packageNameBuilder.append('.');
75 String namespace = module.getNamespace().toString();
76 namespace = COLON_SLASH_SLASH.matcher(namespace).replaceAll(QUOTED_DOT);
78 final char[] chars = namespace.toCharArray();
79 for (int i = 0; i < chars.length; ++i) {
100 packageNameBuilder.append(chars);
101 if (chars[chars.length - 1] != '.') {
102 packageNameBuilder.append('.');
105 final Optional<Revision> optRev = module.getRevision();
106 if (optRev.isPresent()) {
107 // Revision is in format 2017-10-26, we want the output to be 171026, which is a matter of picking the
109 final String rev = optRev.get().toString();
110 Preconditions.checkArgument(rev.length() == 10, "Unsupported revision %s", rev);
111 packageNameBuilder.append("rev");
112 packageNameBuilder.append(rev.substring(2, 4)).append(rev.substring(5, 7)).append(rev.substring(8));
114 // No-revision packages are special
115 packageNameBuilder.append("norev");
118 return normalizePackageName(packageNameBuilder.toString());
121 public static String normalizePackageName(final String packageName) {
122 if (packageName == null) {
126 final StringBuilder builder = new StringBuilder();
127 boolean first = true;
129 for (String p : DOT_SPLITTER.split(packageName.toLowerCase())) {
136 if (Character.isDigit(p.charAt(0)) || BindingMapping.JAVA_RESERVED_WORDS.contains(p)) {
142 // Prevent duplication of input string
143 return PACKAGE_INTERNER.intern(builder.toString());
146 public static String getClassName(final String localName) {
147 checkArgument(localName != null, "Name should not be null.");
148 return toFirstUpper(toCamelCase(localName));
151 public static String getClassName(final QName name) {
152 checkArgument(name != null, "Name should not be null.");
153 return toFirstUpper(toCamelCase(name.getLocalName()));
156 public static String getMethodName(final String yangIdentifier) {
157 checkArgument(yangIdentifier != null,"Identifier should not be null");
158 return toFirstLower(toCamelCase(yangIdentifier));
161 public static String getMethodName(final QName name) {
162 checkArgument(name != null, "Name should not be null.");
163 return getMethodName(name.getLocalName());
166 public static String getGetterSuffix(final QName name) {
167 checkArgument(name != null, "Name should not be null.");
168 final String candidate = toFirstUpper(toCamelCase(name.getLocalName()));
169 return "Class".equals(candidate) ? "XmlClass" : candidate;
172 public static String getPropertyName(final String yangIdentifier) {
173 final String potential = toFirstLower(toCamelCase(yangIdentifier));
174 if ("class".equals(potential)) {
180 private static String toCamelCase(final String rawString) {
181 checkArgument(rawString != null, "String should not be null");
182 Iterable<String> components = CAMEL_SPLITTER.split(rawString);
183 StringBuilder builder = new StringBuilder();
184 for (String comp : components) {
185 builder.append(toFirstUpper(comp));
187 return checkNumericPrefix(builder.toString());
190 private static String checkNumericPrefix(final String rawString) {
191 if (rawString == null || rawString.isEmpty()) {
194 char firstChar = rawString.charAt(0);
195 if (firstChar >= '0' && firstChar <= '9') {
196 return "_" + rawString;
203 * Returns the {@link String} {@code s} with an {@link Character#isUpperCase(char) upper case} first character. This
204 * function is null-safe.
206 * @param str the string that should get an upper case first character. May be <code>null</code>.
207 * @return the {@link String} {@code str} with an upper case first character or <code>null</code> if the input
208 * {@link String} {@code str} was <code>null</code>.
210 public static String toFirstUpper(final String str) {
211 if (str == null || str.length() == 0) {
214 if (Character.isUpperCase(str.charAt(0))) {
217 if (str.length() == 1) {
218 return str.toUpperCase();
220 return str.substring(0, 1).toUpperCase() + str.substring(1);
224 * Returns the {@link String} {@code s} with a {@link Character#isLowerCase(char) lower case} first character. This
225 * function is null-safe.
227 * @param str the string that should get an lower case first character. May be <code>null</code>.
228 * @return the {@link String} {@code str} with an lower case first character or <code>null</code> if the input
229 * {@link String} {@code str} was <code>null</code>.
231 private static String toFirstLower(final String str) {
232 if (str == null || str.length() == 0) {
235 if (Character.isLowerCase(str.charAt(0))) {
238 if (str.length() == 1) {
239 return str.toLowerCase();
241 return str.substring(0, 1).toLowerCase() + str.substring(1);