/* 
 * Licensed under the EUPL, Version 1.1 or – as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence. You may
 * obtain a copy of the Licence at:
 * 
 * http://www.osor.eu/eupl/european-union-public-licence-eupl-v.1.1
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * Licence for the specific language governing permissions and limitations under
 * the Licence.
 */

package eu.stork.peps.auth.engine.core.impl;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.opensaml.common.impl.AbstractSAMLObject;
import org.opensaml.xml.XMLObject;
import org.opensaml.xml.util.IndexedXMLObjectChildrenList;

import eu.stork.peps.auth.engine.core.RequestedAttribute;
import eu.stork.peps.auth.engine.core.RequestedAttributes;

/**
 * The Class RequestedAttributesImpl.
 * 
 * @author fjquevedo
 */
public class RequestedAttributesImpl extends AbstractSAMLObject implements RequestedAttributes {

	/**
	 * Instantiates a new requested attributes implement.
	 * 
	 * @param namespaceURI
	 *            the namespace URI
	 * @param elementLocalName
	 *            the element local name
	 * @param namespacePrefix
	 *            the namespace prefix
	 */
	protected RequestedAttributesImpl(final String namespaceURI, final String elementLocalName, final String namespacePrefix) {
		super(namespaceURI, elementLocalName, namespacePrefix);
		indexedChildren = new IndexedXMLObjectChildrenList<XMLObject>(this);
	}

	/** The indexed children. */
	private final IndexedXMLObjectChildrenList<XMLObject> indexedChildren;

	/**
	 * Gets the indexed children.
	 * 
	 * @return the indexed children
	 */
	public final IndexedXMLObjectChildrenList<XMLObject> getIndexedChildren() {
		return indexedChildren;
	}

	/**
	 * Gets the ordered children.
	 *
	 * @return the ordered children
	 */
	public final List<XMLObject> getOrderedChildren() {

		final ArrayList<XMLObject> children = new ArrayList<XMLObject>();

		children.addAll(indexedChildren);

		return Collections.unmodifiableList(children);

	}

	/**
	 * Gets the attributes.
	 * 
	 * @return the attributes
	 * 
	 * @see eu.stork.peps.auth.engine.core.RequestedAttributes#getAttributes()
	 */
	@SuppressWarnings("unchecked")
	public final List<RequestedAttribute> getAttributes() {
		return (List<RequestedAttribute>) indexedChildren.subList(RequestedAttribute.DEF_ELEMENT_NAME);
	}

	@Override
	public int hashCode() {
		throw new UnsupportedOperationException("hashCode method not implemented");
	}
}