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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.bval.jsr.descriptor;

import java.lang.reflect.AnnotatedElement;
import java.util.Set;

import javax.validation.metadata.CascadableDescriptor;
import javax.validation.metadata.ContainerDescriptor;
import javax.validation.metadata.ContainerElementTypeDescriptor;
import javax.validation.metadata.GroupConversionDescriptor;

import org.apache.bval.jsr.groups.GroupConversion;
import org.apache.bval.jsr.util.ToUnmodifiable;
import org.apache.bval.util.reflection.TypeUtils;

public abstract class CascadableContainerD, E extends AnnotatedElement> extends
    ElementD.NonRoot> implements CascadableDescriptor, ContainerDescriptor {

    private final boolean cascaded;
    private final Set groupConversions;
    private final Set containerElementTypes;

    protected CascadableContainerD(MetadataReader.ForContainer reader, P parent) {
        super(reader, parent);
        cascaded = reader.isCascaded();
        groupConversions = reader.getGroupConversions();
        containerElementTypes = reader.getContainerElementTypes(this)
                                      .stream()
                                      .filter(DescriptorManager::isConstrained)
                                      .collect(ToUnmodifiable.set());
    }

    @Override
    public Class getElementClass() {
        return TypeUtils.getRawType(getGenericType(), parent.getElementClass());
    }

    @Override
    public boolean isCascaded() {
        return cascaded;
    }

    @SuppressWarnings({ "unchecked", "rawtypes" })
    @Override
    public Set getGroupConversions() {
        return (Set) groupConversions;
    }

    @Override
    public Set getConstrainedContainerElementTypes() {
        return containerElementTypes;
    }
}