/*
* Copyright 2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gradle.model.internal.manage.schema;
import com.google.common.base.Objects;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
import net.jcip.annotations.ThreadSafe;
import org.gradle.api.Nullable;
import org.gradle.internal.Cast;
import org.gradle.internal.reflect.PropertyAccessorType;
import org.gradle.model.internal.method.WeaklyTypeReferencingMethod;
import org.gradle.model.internal.type.ModelType;
import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import static org.gradle.internal.reflect.PropertyAccessorType.hasSetter;
@ThreadSafe
public class ModelProperty<T> {
private final String name;
private final ModelType<T> type;
private final Set<ModelType<?>> declaredBy;
private final ImmutableMap<PropertyAccessorType, WeaklyTypeReferencingMethod<?, ?>> accessors;
private ModelSchema<T> schema;
public ModelProperty(ModelType<T> type, String name, Set<ModelType<?>> declaredBy,
Map<PropertyAccessorType, WeaklyTypeReferencingMethod<?, ?>> accessors) {
this.name = name;
this.type = type;
this.declaredBy = ImmutableSet.copyOf(declaredBy);
this.accessors = Maps.immutableEnumMap(accessors);
}
public String getName() {
return name;
}
public ModelType<T> getType() {
return type;
}
public ModelSchema<T> getSchema() {
return schema;
}
public void setSchema(ModelSchema<T> schema) {
this.schema = schema;
}
public boolean isWritable() {
return hasSetter(accessors.keySet());
}
public Set<ModelType<?>> getDeclaredBy() {
return declaredBy;
}
@Nullable
public WeaklyTypeReferencingMethod<?, ?> getAccessor(PropertyAccessorType accessorType) {
return accessors.get(accessorType);
}
public Collection<WeaklyTypeReferencingMethod<?, ?>> getAccessors() {
return accessors.values();
}
public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) {
return isAnnotationPresent(annotationType, getAccessor(PropertyAccessorType.GET_GETTER))
|| isAnnotationPresent(annotationType, getAccessor(PropertyAccessorType.IS_GETTER));
}
private boolean isAnnotationPresent(Class<? extends Annotation> annotationType, WeaklyTypeReferencingMethod<?, ?> getter) {
return getter != null && getter.getMethod().isAnnotationPresent(annotationType);
}
public <I> T getPropertyValue(I instance) {
return Cast.<WeaklyTypeReferencingMethod<I, T>>uncheckedCast(getGetter()).invoke(instance);
}
public WeaklyTypeReferencingMethod<?, ?> getGetter() {
WeaklyTypeReferencingMethod<?, ?> getter = getAccessor(PropertyAccessorType.GET_GETTER);
if (getter == null) {
getter = getAccessor(PropertyAccessorType.IS_GETTER);
}
if (getter == null) {
throw new IllegalStateException("No getter for property" + this);
}
return getter;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
ModelProperty<?> that = (ModelProperty<?>) o;
return Objects.equal(this.name, that.name)
&& Objects.equal(this.type, that.type)
&& isWritable() == that.isWritable();
}
@Override
public int hashCode() {
int result = name.hashCode();
result = 31 * result + type.hashCode();
result = 31 * result + Boolean.valueOf(isWritable()).hashCode();
return result;
}
@Override
public String toString() {
return getName() + "(" + getType().getDisplayName() + ")";
}
}