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.mdsal.binding.model.util;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.cache.CacheBuilder;
13 import com.google.common.cache.CacheLoader;
14 import com.google.common.cache.LoadingCache;
15 import com.google.common.collect.ImmutableRangeSet;
16 import com.google.common.collect.Range;
17 import com.google.common.collect.RangeSet;
18 import com.google.common.util.concurrent.ListenableFuture;
19 import java.io.Serializable;
20 import java.util.Arrays;
21 import java.util.Collections;
22 import java.util.List;
24 import java.util.Objects;
25 import java.util.Optional;
27 import org.eclipse.jdt.annotation.NonNull;
28 import org.eclipse.jdt.annotation.Nullable;
29 import org.opendaylight.mdsal.binding.model.api.BaseTypeWithRestrictions;
30 import org.opendaylight.mdsal.binding.model.api.ConcreteType;
31 import org.opendaylight.mdsal.binding.model.api.JavaTypeName;
32 import org.opendaylight.mdsal.binding.model.api.ParameterizedType;
33 import org.opendaylight.mdsal.binding.model.api.Restrictions;
34 import org.opendaylight.mdsal.binding.model.api.Type;
35 import org.opendaylight.mdsal.binding.model.api.WildcardType;
36 import org.opendaylight.yangtools.concepts.Builder;
37 import org.opendaylight.yangtools.yang.binding.Augmentable;
38 import org.opendaylight.yangtools.yang.binding.Augmentation;
39 import org.opendaylight.yangtools.yang.model.api.type.LengthConstraint;
40 import org.opendaylight.yangtools.yang.model.api.type.PatternConstraint;
41 import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
43 public final class Types {
44 private static final CacheLoader<Class<?>, ConcreteType> TYPE_LOADER = new CacheLoader<>() {
46 public ConcreteType load(final Class<?> key) {
47 return new ConcreteTypeImpl(JavaTypeName.create(key), null);
50 private static final LoadingCache<Class<?>, ConcreteType> TYPE_CACHE =
51 CacheBuilder.newBuilder().weakKeys().build(TYPE_LOADER);
53 public static final @NonNull ConcreteType BOOLEAN = typeForClass(Boolean.class);
54 public static final @NonNull ConcreteType STRING = typeForClass(String.class);
55 public static final @NonNull ConcreteType VOID = typeForClass(Void.class);
56 public static final @NonNull ConcreteType BYTE_ARRAY = typeForClass(byte[].class);
58 private static final @NonNull ConcreteType BUILDER = typeForClass(Builder.class);
59 private static final @NonNull ConcreteType CLASS = typeForClass(Class.class);
60 private static final @NonNull ConcreteType LIST_TYPE = typeForClass(List.class);
61 private static final @NonNull ConcreteType LISTENABLE_FUTURE = typeForClass(ListenableFuture.class);
62 private static final @NonNull ConcreteType MAP_TYPE = typeForClass(Map.class);
63 private static final @NonNull ConcreteType OBJECT = typeForClass(Object.class);
64 private static final @NonNull ConcreteType PRIMITIVE_VOID = typeForClass(void.class);
65 private static final @NonNull ConcreteType SERIALIZABLE = typeForClass(Serializable.class);
66 private static final @NonNull ConcreteType SET_TYPE = typeForClass(Set.class);
69 * It is not desirable to create instance of this class.
75 * Returns an instance of {@link ParameterizedType} which represents JAVA <code>java.lang.Class</code> type
76 * specialized to specified type.
78 * @param type Type for which to specialize
79 * @return A parameterized type corresponding to {@code Class<Type>}
80 * @throws NullPointerException if {@code type} is null
82 public static @NonNull ParameterizedType classType(final Type type) {
83 return parameterizedTypeFor(CLASS, type);
87 * Returns an instance of {@link ConcreteType} which represents JAVA <code>java.lang.Void</code> type.
89 * @return <code>ConcreteType</code> instance which represents JAVA <code>java.lang.Void</code>
91 public static @NonNull ConcreteType voidType() {
96 * Returns an instance of {@link ConcreteType} which represents {@link Object} type.
98 * @return <code>ConcreteType</code> instance which represents {@link Object}
100 public static @NonNull ConcreteType objectType() {
105 * Returns an instance of {@link ConcreteType} which represents JAVA <code>void</code> type.
107 * @return <code>ConcreteType</code> instance which represents JAVA <code>void</code>
109 public static @NonNull ConcreteType primitiveVoidType() {
110 return PRIMITIVE_VOID;
114 * Returns an instance of {@link ConcreteType} which represents {@link Serializable} type.
116 * @return <code>ConcreteType</code> instance which represents JAVA <code>{@link Serializable}</code>
118 public static @NonNull ConcreteType serializableType() {
123 * Returns an instance of {@link ConcreteType} describing the class.
125 * @param cls Class to describe
126 * @return Description of class
128 public static @NonNull ConcreteType typeForClass(final @NonNull Class<?> cls) {
129 return TYPE_CACHE.getUnchecked(cls);
132 public static @NonNull ConcreteType typeForClass(final @NonNull Class<?> cls,
133 final @Nullable Restrictions restrictions) {
134 if (restrictions == null) {
135 return typeForClass(cls);
138 final JavaTypeName identifier = JavaTypeName.create(cls);
139 if (restrictions instanceof DefaultRestrictions) {
140 return new ConcreteTypeImpl(identifier, restrictions);
142 return new BaseTypeWithRestrictionsImpl(identifier, restrictions);
146 * Returns an instance of {@link ParameterizedType} describing the typed {@link Map}<K,V>.
148 * @param keyType Key Type
149 * @param valueType Value Type
150 * @return Description of generic type instance
152 public static @NonNull ParameterizedType mapTypeFor(final Type keyType, final Type valueType) {
153 return parameterizedTypeFor(MAP_TYPE, keyType, valueType);
157 * Returns an instance of {@link ParameterizedType} describing the typed {@link Set}<V> with concrete type
160 * @param valueType Value Type
161 * @return Description of generic type instance of Set
163 public static @NonNull ParameterizedType setTypeFor(final Type valueType) {
164 return parameterizedTypeFor(SET_TYPE, valueType);
168 * Returns an instance of {@link ParameterizedType} describing the typed {@link List}<V> with concrete type
171 * @param valueType Value Type
172 * @return Description of type instance of List
174 public static @NonNull ParameterizedType listTypeFor(final Type valueType) {
175 return parameterizedTypeFor(LIST_TYPE, valueType);
178 public static boolean isListType(final Type type) {
179 return type instanceof ParameterizedType && LIST_TYPE.equals(((ParameterizedType) type).getRawType());
183 * Returns an instance of {@link ParameterizedType} describing the typed {@link ListenableFuture}<V>
184 * with concrete type of value.
186 * @param valueType Value Type
187 * @return Description of type instance of ListenableFuture
189 public static @NonNull ParameterizedType listenableFutureTypeFor(final Type valueType) {
190 return parameterizedTypeFor(LISTENABLE_FUTURE, valueType);
194 * Returns an instance of {@link ParameterizedType} describing the typed
195 * {@link Builder}<V> with concrete type of value.
197 * @param valueType Value Type
198 * @return Description of type instance of Builder
200 public static @NonNull ParameterizedType builderTypeFor(final Type valueType) {
201 return parameterizedTypeFor(BUILDER, valueType);
205 * Creates instance of type {@link org.opendaylight.mdsal.binding.model.api.ParameterizedType ParameterizedType}.
207 * @param type JAVA <code>Type</code> for raw type
208 * @param parameters JAVA <code>Type</code>s for actual parameter types
209 * @return <code>ParametrizedType</code> representation of <code>type</code> and its <code>parameters</code>
210 * @throws NullPointerException if any argument or any member of {@code parameters} is null
212 public static @NonNull ParameterizedType parameterizedTypeFor(final Type type, final Type... parameters) {
213 return new ParametrizedTypeImpl(type, parameters);
217 * Creates instance of type {@link org.opendaylight.mdsal.binding.model.api.WildcardType}.
219 * @param identifier JavaTypeName of the type
220 * @return <code>WildcardType</code> representation of specified identifier
222 public static WildcardType wildcardTypeFor(final JavaTypeName identifier) {
223 return new WildcardTypeImpl(identifier);
227 * Creates instance of
228 * {@link org.opendaylight.mdsal.binding.model.api.ParameterizedType
229 * ParameterizedType} where raw type is
230 * {@link org.opendaylight.yangtools.yang.binding.Augmentable} and actual
231 * parameter is <code>valueType</code>.
233 * @param valueType JAVA <code>Type</code> with actual parameter
234 * @return <code>ParametrizedType</code> representation of raw type
235 * <code>Augmentable</code> with actual parameter
236 * <code>valueType</code>
238 public static @NonNull ParameterizedType augmentableTypeFor(final Type valueType) {
239 final Type augmentable = typeForClass(Augmentable.class);
240 return parameterizedTypeFor(augmentable, valueType);
244 * Creates instance of {@link org.opendaylight.mdsal.binding.model.api.ParameterizedType ParameterizedType} where
245 * raw type is {@link org.opendaylight.yangtools.yang.binding.Augmentation} and actual parameter
246 * is <code>valueType</code>.
248 * @param valueType JAVA <code>Type</code> with actual parameter
249 * @return <code>ParametrizedType</code> reprezentation of raw type
250 * <code>Augmentation</code> with actual parameter
251 * <code>valueType</code>
253 public static @NonNull ParameterizedType augmentationTypeFor(final Type valueType) {
254 final Type augmentation = typeForClass(Augmentation.class);
255 return parameterizedTypeFor(augmentation, valueType);
258 public static @Nullable String getOuterClassName(final Type valueType) {
259 return valueType.getIdentifier().immediatelyEnclosingClass().map(Object::toString).orElse(null);
263 * Represents concrete JAVA type.
265 private static final class ConcreteTypeImpl extends AbstractBaseType implements ConcreteType {
266 private final Restrictions restrictions;
269 * Creates instance of this class with package <code>pkName</code> and with the type name <code>name</code>.
271 * @param pkName string with package name
272 * @param name string with the name of the type
274 ConcreteTypeImpl(final JavaTypeName identifier, final Restrictions restrictions) {
276 this.restrictions = restrictions;
280 public Restrictions getRestrictions() {
281 return this.restrictions;
286 * Represents concrete JAVA type with changed restriction values.
288 private static final class BaseTypeWithRestrictionsImpl extends AbstractBaseType implements
289 BaseTypeWithRestrictions {
290 private final Restrictions restrictions;
293 * Creates instance of this class with package <code>pkName</code> and with the type name <code>name</code>.
295 * @param pkName string with package name
296 * @param name string with the name of the type
298 BaseTypeWithRestrictionsImpl(final JavaTypeName identifier, final Restrictions restrictions) {
300 this.restrictions = requireNonNull(restrictions);
304 public Restrictions getRestrictions() {
305 return this.restrictions;
310 * Represents parametrized JAVA type.
312 private static class ParametrizedTypeImpl extends AbstractBaseType implements ParameterizedType {
314 * Array of JAVA actual type parameters.
316 private final Type[] actualTypes;
319 * JAVA raw type (like List, Set, Map...).
321 private final Type rawType;
324 * Creates instance of this class with concrete rawType and array of actual parameters.
326 * @param rawType JAVA <code>Type</code> for raw type
327 * @param actTypes array of actual parameters
329 ParametrizedTypeImpl(final Type rawType, final Type[] actTypes) {
330 super(rawType.getIdentifier());
331 this.rawType = requireNonNull(rawType);
332 actualTypes = actTypes.clone();
333 if (Arrays.stream(actualTypes).anyMatch(Objects::isNull)) {
334 throw new NullPointerException("actTypes contains a null");
339 public Type[] getActualTypeArguments() {
341 return this.actualTypes;
345 public Type getRawType() {
351 * Represents JAVA bounded wildcard type.
353 private static class WildcardTypeImpl extends AbstractBaseType implements WildcardType {
355 * Creates instance of this class with concrete package and type name.
357 * @param packageName string with the package name
358 * @param typeName string with the name of type
360 WildcardTypeImpl(final JavaTypeName identifier) {
365 public static <T extends Number & Comparable<T>> DefaultRestrictions<T> getDefaultRestrictions(final T min,
367 return new DefaultRestrictions<>(min, max);
370 private static final class DefaultRestrictions<T extends Number & Comparable<T>> implements Restrictions {
371 private final RangeConstraint<?> rangeConstraint;
373 DefaultRestrictions(final T min, final T max) {
374 this.rangeConstraint = new DefaultRangeConstraint<>(min, max);
378 public boolean isEmpty() {
383 public Optional<? extends RangeConstraint<?>> getRangeConstraint() {
384 return Optional.of(rangeConstraint);
388 public List<PatternConstraint> getPatternConstraints() {
389 return Collections.emptyList();
393 public Optional<LengthConstraint> getLengthConstraint() {
394 return Optional.empty();
398 private static final class DefaultRangeConstraint<T extends Number & Comparable<T>> implements RangeConstraint<T> {
402 DefaultRangeConstraint(final T min, final T max) {
403 this.min = requireNonNull(min);
404 this.max = requireNonNull(max);
408 public Optional<String> getErrorAppTag() {
409 return Optional.empty();
413 public Optional<String> getErrorMessage() {
414 return Optional.empty();
418 public Optional<String> getDescription() {
419 return Optional.empty();
423 public Optional<String> getReference() {
424 return Optional.empty();
428 public RangeSet<T> getAllowedRanges() {
429 return ImmutableRangeSet.of(Range.closed(min, max));