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.annotations.Beta;
13 import com.google.common.cache.CacheBuilder;
14 import com.google.common.cache.CacheLoader;
15 import com.google.common.cache.LoadingCache;
16 import com.google.common.collect.ImmutableRangeSet;
17 import com.google.common.collect.Range;
18 import com.google.common.collect.RangeSet;
19 import com.google.common.util.concurrent.ListenableFuture;
20 import java.io.Serializable;
21 import java.util.Arrays;
22 import java.util.Collections;
23 import java.util.List;
25 import java.util.Objects;
26 import java.util.Optional;
28 import org.eclipse.jdt.annotation.NonNull;
29 import org.eclipse.jdt.annotation.Nullable;
30 import org.opendaylight.mdsal.binding.model.api.AbstractBaseType;
31 import org.opendaylight.mdsal.binding.model.api.BaseTypeWithRestrictions;
32 import org.opendaylight.mdsal.binding.model.api.ConcreteType;
33 import org.opendaylight.mdsal.binding.model.api.JavaTypeName;
34 import org.opendaylight.mdsal.binding.model.api.ParameterizedType;
35 import org.opendaylight.mdsal.binding.model.api.Restrictions;
36 import org.opendaylight.mdsal.binding.model.api.Type;
37 import org.opendaylight.mdsal.binding.model.api.WildcardType;
38 import org.opendaylight.yangtools.concepts.Builder;
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 return restrictions == null ? typeForClass(cls) : restrictedType(JavaTypeName.create(cls), restrictions);
138 public static @NonNull ConcreteType restrictedType(final Type type, final @NonNull Restrictions restrictions) {
139 return restrictedType(type.getIdentifier(), restrictions);
142 private static @NonNull ConcreteType restrictedType(final JavaTypeName identifier,
143 final @NonNull Restrictions restrictions) {
144 return restrictions instanceof DefaultRestrictions ? new ConcreteTypeImpl(identifier, restrictions)
145 : new BaseTypeWithRestrictionsImpl(identifier, restrictions);
149 * Returns an instance of {@link ParameterizedType} describing the typed {@link Map}<K,V>.
151 * @param keyType Key Type
152 * @param valueType Value Type
153 * @return Description of generic type instance
155 public static @NonNull ParameterizedType mapTypeFor(final Type keyType, final Type valueType) {
156 return parameterizedTypeFor(MAP_TYPE, keyType, valueType);
159 public static boolean isMapType(final ParameterizedType type) {
160 return MAP_TYPE.equals(type.getRawType());
163 public static boolean isMapType(final Type type) {
164 return type instanceof ParameterizedType && isMapType((ParameterizedType) type);
168 * Returns an instance of {@link ParameterizedType} describing the typed {@link Set}<V> with concrete type
171 * @param valueType Value Type
172 * @return Description of generic type instance of Set
174 public static @NonNull ParameterizedType setTypeFor(final Type valueType) {
175 return parameterizedTypeFor(SET_TYPE, valueType);
179 * Returns an instance of {@link ParameterizedType} describing the typed {@link List}<V> with concrete type
182 * @param valueType Value Type
183 * @return Description of type instance of List
185 public static @NonNull ParameterizedType listTypeFor(final Type valueType) {
186 return parameterizedTypeFor(LIST_TYPE, valueType);
189 public static boolean isListType(final ParameterizedType type) {
190 return LIST_TYPE.equals(type.getRawType());
193 public static boolean isListType(final Type type) {
194 return type instanceof ParameterizedType && isListType((ParameterizedType) type);
198 * Returns an instance of {@link ParameterizedType} describing the typed {@link ListenableFuture}<V>
199 * with concrete type of value.
201 * @param valueType Value Type
202 * @return Description of type instance of ListenableFuture
204 public static @NonNull ParameterizedType listenableFutureTypeFor(final Type valueType) {
205 return parameterizedTypeFor(LISTENABLE_FUTURE, valueType);
209 * Returns an instance of {@link ParameterizedType} describing the typed
210 * {@link Builder}<V> with concrete type of value.
212 * @param valueType Value Type
213 * @return Description of type instance of Builder
215 public static @NonNull ParameterizedType builderTypeFor(final Type valueType) {
216 return parameterizedTypeFor(BUILDER, valueType);
220 * Creates instance of type {@link org.opendaylight.mdsal.binding.model.api.ParameterizedType ParameterizedType}.
222 * @param type JAVA <code>Type</code> for raw type
223 * @param parameters JAVA <code>Type</code>s for actual parameter types
224 * @return <code>ParametrizedType</code> representation of <code>type</code> and its <code>parameters</code>
225 * @throws NullPointerException if any argument or any member of {@code parameters} is null
227 public static @NonNull ParameterizedType parameterizedTypeFor(final Type type, final Type... parameters) {
228 return new ParametrizedTypeImpl(type, parameters);
232 * Creates instance of type {@link org.opendaylight.mdsal.binding.model.api.WildcardType}.
234 * @param identifier JavaTypeName of the type
235 * @return <code>WildcardType</code> representation of specified identifier
237 public static WildcardType wildcardTypeFor(final JavaTypeName identifier) {
238 return new WildcardTypeImpl(identifier);
241 public static @Nullable String getOuterClassName(final Type valueType) {
242 return valueType.getIdentifier().immediatelyEnclosingClass().map(Object::toString).orElse(null);
246 * Represents concrete JAVA type.
248 private static final class ConcreteTypeImpl extends AbstractBaseType implements ConcreteType {
249 private final Restrictions restrictions;
252 * Creates instance of this class with package <code>pkName</code> and with the type name <code>name</code>.
254 * @param pkName string with package name
255 * @param name string with the name of the type
257 ConcreteTypeImpl(final JavaTypeName identifier, final Restrictions restrictions) {
259 this.restrictions = restrictions;
263 public Restrictions getRestrictions() {
264 return this.restrictions;
269 * Represents concrete JAVA type with changed restriction values.
271 private static final class BaseTypeWithRestrictionsImpl extends AbstractBaseType implements
272 BaseTypeWithRestrictions {
273 private final Restrictions restrictions;
276 * Creates instance of this class with package <code>pkName</code> and with the type name <code>name</code>.
278 * @param pkName string with package name
279 * @param name string with the name of the type
281 BaseTypeWithRestrictionsImpl(final JavaTypeName identifier, final Restrictions restrictions) {
283 this.restrictions = requireNonNull(restrictions);
287 public Restrictions getRestrictions() {
288 return this.restrictions;
293 * Represents parametrized JAVA type.
295 private static class ParametrizedTypeImpl extends AbstractBaseType implements ParameterizedType {
297 * Array of JAVA actual type parameters.
299 private final Type[] actualTypes;
302 * JAVA raw type (like List, Set, Map...).
304 private final Type rawType;
307 * Creates instance of this class with concrete rawType and array of actual parameters.
309 * @param rawType JAVA <code>Type</code> for raw type
310 * @param actTypes array of actual parameters
312 ParametrizedTypeImpl(final Type rawType, final Type[] actTypes) {
313 super(rawType.getIdentifier());
314 this.rawType = requireNonNull(rawType);
315 actualTypes = actTypes.clone();
316 if (Arrays.stream(actualTypes).anyMatch(Objects::isNull)) {
317 throw new NullPointerException("actTypes contains a null");
322 public Type[] getActualTypeArguments() {
324 return this.actualTypes;
328 public Type getRawType() {
334 * Represents JAVA bounded wildcard type.
336 private static class WildcardTypeImpl extends AbstractBaseType implements WildcardType {
338 * Creates instance of this class with concrete package and type name.
340 * @param packageName string with the package name
341 * @param typeName string with the name of type
343 WildcardTypeImpl(final JavaTypeName identifier) {
348 public static <T extends Number & Comparable<T>> DefaultRestrictions<T> getDefaultRestrictions(final T min,
350 return new DefaultRestrictions<>(min, max);
353 private static final class DefaultRestrictions<T extends Number & Comparable<T>> implements Restrictions {
354 private final RangeConstraint<?> rangeConstraint;
356 DefaultRestrictions(final T min, final T max) {
357 this.rangeConstraint = new DefaultRangeConstraint<>(min, max);
361 public boolean isEmpty() {
366 public Optional<? extends RangeConstraint<?>> getRangeConstraint() {
367 return Optional.of(rangeConstraint);
371 public List<PatternConstraint> getPatternConstraints() {
372 return Collections.emptyList();
376 public Optional<LengthConstraint> getLengthConstraint() {
377 return Optional.empty();
381 private static final class DefaultRangeConstraint<T extends Number & Comparable<T>> implements RangeConstraint<T> {
385 DefaultRangeConstraint(final T min, final T max) {
386 this.min = requireNonNull(min);
387 this.max = requireNonNull(max);
391 public Optional<String> getErrorAppTag() {
392 return Optional.empty();
396 public Optional<String> getErrorMessage() {
397 return Optional.empty();
401 public Optional<String> getDescription() {
402 return Optional.empty();
406 public Optional<String> getReference() {
407 return Optional.empty();
411 public RangeSet<T> getAllowedRanges() {
412 return ImmutableRangeSet.of(Range.closed(min, max));