Refactor mdsal-binding-generator artifacts
[mdsal.git] / binding / mdsal-binding-model-ri / src / main / java / org / opendaylight / mdsal / binding / model / ri / Types.java
diff --git a/binding/mdsal-binding-model-ri/src/main/java/org/opendaylight/mdsal/binding/model/ri/Types.java b/binding/mdsal-binding-model-ri/src/main/java/org/opendaylight/mdsal/binding/model/ri/Types.java
new file mode 100644 (file)
index 0000000..f043eae
--- /dev/null
@@ -0,0 +1,459 @@
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.mdsal.binding.model.ri;
+
+import static java.util.Objects.requireNonNull;
+
+import com.google.common.annotations.Beta;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.collect.ImmutableRangeSet;
+import com.google.common.collect.Range;
+import com.google.common.collect.RangeSet;
+import com.google.common.util.concurrent.ListenableFuture;
+import java.io.Serializable;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
+import org.opendaylight.mdsal.binding.model.api.AbstractType;
+import org.opendaylight.mdsal.binding.model.api.BaseTypeWithRestrictions;
+import org.opendaylight.mdsal.binding.model.api.ConcreteType;
+import org.opendaylight.mdsal.binding.model.api.JavaTypeName;
+import org.opendaylight.mdsal.binding.model.api.ParameterizedType;
+import org.opendaylight.mdsal.binding.model.api.Restrictions;
+import org.opendaylight.mdsal.binding.model.api.Type;
+import org.opendaylight.mdsal.binding.model.api.WildcardType;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.model.api.type.LengthConstraint;
+import org.opendaylight.yangtools.yang.model.api.type.PatternConstraint;
+import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
+
+public final class Types {
+    private static final CacheLoader<Class<?>, ConcreteType> TYPE_LOADER = new CacheLoader<>() {
+        @Override
+        public ConcreteType load(final Class<?> key) {
+            return new ConcreteTypeImpl(JavaTypeName.create(key), null);
+        }
+    };
+    private static final LoadingCache<Class<?>, ConcreteType> TYPE_CACHE =
+            CacheBuilder.newBuilder().weakKeys().build(TYPE_LOADER);
+
+    public static final @NonNull ConcreteType BOOLEAN = typeForClass(Boolean.class);
+    public static final @NonNull ConcreteType BYTE_ARRAY = typeForClass(byte[].class);
+    public static final @NonNull ConcreteType CLASS = typeForClass(Class.class);
+    public static final @NonNull ConcreteType STRING = typeForClass(String.class);
+    public static final @NonNull ConcreteType VOID = typeForClass(Void.class);
+
+    private static final @NonNull ConcreteType BUILDER = typeForClass(Builder.class);
+    private static final @NonNull ConcreteType LIST_TYPE = typeForClass(List.class);
+    private static final @NonNull ConcreteType LISTENABLE_FUTURE = typeForClass(ListenableFuture.class);
+    private static final @NonNull ConcreteType MAP_TYPE = typeForClass(Map.class);
+    private static final @NonNull ConcreteType OBJECT = typeForClass(Object.class);
+    private static final @NonNull ConcreteType PRIMITIVE_BOOLEAN = typeForClass(boolean.class);
+    private static final @NonNull ConcreteType PRIMITIVE_INT = typeForClass(int.class);
+    private static final @NonNull ConcreteType PRIMITIVE_VOID = typeForClass(void.class);
+    private static final @NonNull ConcreteType SERIALIZABLE = typeForClass(Serializable.class);
+    private static final @NonNull ConcreteType SET_TYPE = typeForClass(Set.class);
+    private static final @NonNull ParameterizedType LIST_TYPE_WILDCARD = parameterizedTypeFor(LIST_TYPE);
+
+    /**
+     * It is not desirable to create instance of this class.
+     */
+    private Types() {
+    }
+
+    /**
+     * Returns an instance of {@link ParameterizedType} which represents JAVA <code>java.lang.Class</code> type
+     * specialized to specified type.
+     *
+     * @param type Type for which to specialize
+     * @return A parameterized type corresponding to {@code Class<Type>}
+     * @throws NullPointerException if {@code type} is null
+     */
+    public static @NonNull ParameterizedType classType(final Type type) {
+        return parameterizedTypeFor(CLASS, type);
+    }
+
+    /**
+     * Returns an instance of {@link ConcreteType} which represents JAVA <code>java.lang.Void</code> type.
+     *
+     * @return <code>ConcreteType</code> instance which represents JAVA <code>java.lang.Void</code>
+     */
+    public static @NonNull ConcreteType voidType() {
+        return VOID;
+    }
+
+    /**
+     * Returns an instance of {@link ConcreteType} which represents {@link Object} type.
+     *
+     * @return <code>ConcreteType</code> instance which represents {@link Object}
+     */
+    public static @NonNull ConcreteType objectType() {
+        return OBJECT;
+    }
+
+    /**
+     * Returns an instance of {@link ConcreteType} which represents JAVA <code>boolean</code> type.
+     *
+     * @return <code>ConcreteType</code> instance which represents JAVA <code>boolean</code>
+     */
+    public static @NonNull ConcreteType primitiveBooleanType() {
+        return PRIMITIVE_BOOLEAN;
+    }
+
+    /**
+     * Returns an instance of {@link ConcreteType} which represents JAVA <code>int</code> type.
+     *
+     * @return <code>ConcreteType</code> instance which represents JAVA <code>int</code>
+     */
+    public static @NonNull ConcreteType primitiveIntType() {
+        return PRIMITIVE_INT;
+    }
+
+    /**
+     * Returns an instance of {@link ConcreteType} which represents JAVA <code>void</code> type.
+     *
+     * @return <code>ConcreteType</code> instance which represents JAVA <code>void</code>
+     */
+    public static @NonNull ConcreteType primitiveVoidType() {
+        return PRIMITIVE_VOID;
+    }
+
+    /**
+     * Returns an instance of {@link ConcreteType} which represents {@link Serializable} type.
+     *
+     * @return <code>ConcreteType</code> instance which represents JAVA <code>{@link Serializable}</code>
+     */
+    public static @NonNull ConcreteType serializableType() {
+        return SERIALIZABLE;
+    }
+
+    /**
+     * Returns an instance of {@link ConcreteType} describing the class.
+     *
+     * @param cls Class to describe
+     * @return Description of class
+     */
+    public static @NonNull ConcreteType typeForClass(final @NonNull Class<?> cls) {
+        return TYPE_CACHE.getUnchecked(cls);
+    }
+
+    public static @NonNull ConcreteType typeForClass(final @NonNull Class<?> cls,
+            final @Nullable Restrictions restrictions) {
+        return restrictions == null ? typeForClass(cls) : restrictedType(JavaTypeName.create(cls), restrictions);
+    }
+
+    @Beta
+    public static @NonNull ConcreteType restrictedType(final Type type, final @NonNull Restrictions restrictions) {
+        return restrictedType(type.getIdentifier(), restrictions);
+    }
+
+    private static @NonNull ConcreteType restrictedType(final JavaTypeName identifier,
+            final @NonNull Restrictions restrictions) {
+        return restrictions instanceof DefaultRestrictions ? new ConcreteTypeImpl(identifier, restrictions)
+                : new BaseTypeWithRestrictionsImpl(identifier, restrictions);
+    }
+
+    /**
+     * Returns an instance of {@link ParameterizedType} describing the typed {@link Map}&lt;K,V&gt;.
+     *
+     * @param keyType Key Type
+     * @param valueType Value Type
+     * @return Description of generic type instance
+     */
+    public static @NonNull ParameterizedType mapTypeFor(final Type keyType, final Type valueType) {
+        return parameterizedTypeFor(MAP_TYPE, keyType, valueType);
+    }
+
+    public static boolean isMapType(final ParameterizedType type) {
+        return MAP_TYPE.equals(type.getRawType());
+    }
+
+    public static boolean isMapType(final Type type) {
+        return type instanceof ParameterizedType && isMapType((ParameterizedType) type);
+    }
+
+    /**
+     * Returns an instance of {@link ParameterizedType} describing the typed {@link Set}&lt;V&gt; with concrete type
+     * of value.
+     *
+     * @param valueType Value Type
+     * @return Description of generic type instance of Set
+     */
+    public static @NonNull ParameterizedType setTypeFor(final Type valueType) {
+        return parameterizedTypeFor(SET_TYPE, valueType);
+    }
+
+    /**
+     * Returns an instance of {@link ParameterizedType} describing the typed {@link List}&lt;V&gt; with concrete type
+     * of value.
+     *
+     * @param valueType Value Type
+     * @return Description of type instance of List
+     */
+    public static @NonNull ParameterizedType listTypeFor(final Type valueType) {
+        return parameterizedTypeFor(LIST_TYPE, valueType);
+    }
+
+    /**
+     * Returns an instance of {@link ParameterizedType} describing the typed {@link List}&lt;?&gt;.
+     *
+     * @return Description of type instance of List
+     */
+    public static @NonNull ParameterizedType listTypeWildcard() {
+        return LIST_TYPE_WILDCARD;
+    }
+
+    public static boolean isListType(final ParameterizedType type) {
+        return LIST_TYPE.equals(type.getRawType());
+    }
+
+    public static boolean isListType(final Type type) {
+        return type instanceof ParameterizedType && isListType((ParameterizedType) type);
+    }
+
+    /**
+     * Returns an instance of {@link ParameterizedType} describing the typed {@link ListenableFuture}&lt;V&gt;
+     * with concrete type of value.
+     *
+     * @param valueType Value Type
+     * @return Description of type instance of ListenableFuture
+     */
+    public static @NonNull ParameterizedType listenableFutureTypeFor(final Type valueType) {
+        return parameterizedTypeFor(LISTENABLE_FUTURE, valueType);
+    }
+
+    /**
+     * Returns an instance of {@link ParameterizedType} describing the typed
+     * {@link Builder}&lt;V&gt; with concrete type of value.
+     *
+     * @param valueType Value Type
+     * @return Description of type instance of Builder
+     */
+    public static @NonNull ParameterizedType builderTypeFor(final Type valueType) {
+        return parameterizedTypeFor(BUILDER, valueType);
+    }
+
+    /**
+     * Creates instance of type {@link org.opendaylight.mdsal.binding.model.api.ParameterizedType ParameterizedType}.
+     *
+     * @param type JAVA <code>Type</code> for raw type
+     * @param parameters JAVA <code>Type</code>s for actual parameter types
+     * @return <code>ParametrizedType</code> representation of <code>type</code> and its <code>parameters</code>
+     * @throws NullPointerException if any argument or any member of {@code parameters} is null
+     */
+    public static @NonNull ParameterizedType parameterizedTypeFor(final Type type, final Type... parameters) {
+        return new ParametrizedTypeImpl(type, parameters);
+    }
+
+    /**
+     * Creates instance of type {@link org.opendaylight.mdsal.binding.model.api.WildcardType}.
+     *
+     * @param identifier JavaTypeName of the type
+     * @return <code>WildcardType</code> representation of specified identifier
+     */
+    public static WildcardType wildcardTypeFor(final JavaTypeName identifier) {
+        return new WildcardTypeImpl(identifier);
+    }
+
+    public static boolean strictTypeEquals(final Type type1, final Type type2) {
+        if (!type1.equals(type2)) {
+            return false;
+        }
+        if (type1 instanceof ParameterizedType) {
+            if (type2 instanceof ParameterizedType) {
+                return Arrays.equals(((ParameterizedType) type1).getActualTypeArguments(),
+                    ((ParameterizedType) type2).getActualTypeArguments());
+            }
+            return false;
+        }
+        return !(type2 instanceof ParameterizedType);
+    }
+
+    public static @Nullable String getOuterClassName(final Type valueType) {
+        return valueType.getIdentifier().immediatelyEnclosingClass().map(Object::toString).orElse(null);
+    }
+
+    /**
+     * Represents concrete JAVA type.
+     */
+    private static final class ConcreteTypeImpl extends AbstractType implements ConcreteType {
+        private final Restrictions restrictions;
+
+        /**
+         * Creates instance of this class with package <code>pkName</code> and with the type name <code>name</code>.
+         *
+         * @param pkName string with package name
+         * @param name string with the name of the type
+         */
+        ConcreteTypeImpl(final JavaTypeName identifier, final Restrictions restrictions) {
+            super(identifier);
+            this.restrictions = restrictions;
+        }
+
+        @Override
+        public Restrictions getRestrictions() {
+            return this.restrictions;
+        }
+    }
+
+    /**
+     * Represents concrete JAVA type with changed restriction values.
+     */
+    private static final class BaseTypeWithRestrictionsImpl extends AbstractType implements
+            BaseTypeWithRestrictions {
+        private final Restrictions restrictions;
+
+        /**
+         * Creates instance of this class with package <code>pkName</code> and with the type name <code>name</code>.
+         *
+         * @param pkName string with package name
+         * @param name string with the name of the type
+         */
+        BaseTypeWithRestrictionsImpl(final JavaTypeName identifier, final Restrictions restrictions) {
+            super(identifier);
+            this.restrictions = requireNonNull(restrictions);
+        }
+
+        @Override
+        public Restrictions getRestrictions() {
+            return this.restrictions;
+        }
+    }
+
+    /**
+     * Represents parametrized JAVA type.
+     */
+    private static class ParametrizedTypeImpl extends AbstractType implements ParameterizedType {
+        /**
+         * Array of JAVA actual type parameters.
+         */
+        private final Type[] actualTypes;
+
+        /**
+         * JAVA raw type (like List, Set, Map...).
+         */
+        private final Type rawType;
+
+        /**
+         * Creates instance of this class with concrete rawType and array of actual parameters.
+         *
+         * @param rawType JAVA <code>Type</code> for raw type
+         * @param actTypes array of actual parameters
+         */
+        ParametrizedTypeImpl(final Type rawType, final Type[] actTypes) {
+            super(rawType.getIdentifier());
+            this.rawType = requireNonNull(rawType);
+            actualTypes = actTypes.clone();
+            if (Arrays.stream(actualTypes).anyMatch(Objects::isNull)) {
+                throw new NullPointerException("actTypes contains a null");
+            }
+        }
+
+        @Override
+        public Type[] getActualTypeArguments() {
+
+            return this.actualTypes;
+        }
+
+        @Override
+        public Type getRawType() {
+            return this.rawType;
+        }
+    }
+
+    /**
+     * Represents JAVA bounded wildcard type.
+     */
+    private static class WildcardTypeImpl extends AbstractType implements WildcardType {
+        /**
+         * Creates instance of this class with concrete package and type name.
+         *
+         * @param packageName string with the package name
+         * @param typeName string with the name of type
+         */
+        WildcardTypeImpl(final JavaTypeName identifier) {
+            super(identifier);
+        }
+    }
+
+    public static <T extends Number & Comparable<T>> DefaultRestrictions<T> getDefaultRestrictions(final T min,
+            final T max) {
+        return new DefaultRestrictions<>(min, max);
+    }
+
+    private static final class DefaultRestrictions<T extends Number & Comparable<T>> implements Restrictions {
+        private final RangeConstraint<?> rangeConstraint;
+
+        DefaultRestrictions(final T min, final T max) {
+            this.rangeConstraint = new DefaultRangeConstraint<>(min, max);
+        }
+
+        @Override
+        public boolean isEmpty() {
+            return false;
+        }
+
+        @Override
+        public Optional<? extends RangeConstraint<?>> getRangeConstraint() {
+            return Optional.of(rangeConstraint);
+        }
+
+        @Override
+        public List<PatternConstraint> getPatternConstraints() {
+            return Collections.emptyList();
+        }
+
+        @Override
+        public Optional<LengthConstraint> getLengthConstraint() {
+            return Optional.empty();
+        }
+    }
+
+    private static final class DefaultRangeConstraint<T extends Number & Comparable<T>> implements RangeConstraint<T> {
+        private final T min;
+        private final T max;
+
+        DefaultRangeConstraint(final T min, final T max) {
+            this.min = requireNonNull(min);
+            this.max = requireNonNull(max);
+        }
+
+        @Override
+        public Optional<String> getErrorAppTag() {
+            return Optional.empty();
+        }
+
+        @Override
+        public Optional<String> getErrorMessage() {
+            return Optional.empty();
+        }
+
+        @Override
+        public Optional<String> getDescription() {
+            return Optional.empty();
+        }
+
+        @Override
+        public Optional<String> getReference() {
+            return Optional.empty();
+        }
+
+        @Override
+        public RangeSet<@NonNull T> getAllowedRanges() {
+            return ImmutableRangeSet.of(Range.closed(min, max));
+        }
+    }
+}