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/*
 * Licensed to the University Corporation for Advanced Internet Development,
 * Inc. (UCAID) under one or more contributor license agreements.  See the
 * NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The UCAID 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.opensaml.saml.saml2.metadata.impl;

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

import javax.xml.namespace.QName;

import org.opensaml.core.xml.XMLObject;
import org.opensaml.core.xml.util.XMLObjectChildrenList;
import org.opensaml.saml.saml2.metadata.AssertionIDRequestService;
import org.opensaml.saml.saml2.metadata.AuthzService;
import org.opensaml.saml.saml2.metadata.Endpoint;
import org.opensaml.saml.saml2.metadata.NameIDFormat;
import org.opensaml.saml.saml2.metadata.PDPDescriptor;

/**
 * Concrete implementation of {@link org.opensaml.saml.saml2.metadata.PDPDescriptor}.
 */
public class PDPDescriptorImpl extends RoleDescriptorImpl implements PDPDescriptor {

    /** AuthzService children. */
    private final XMLObjectChildrenList authzServices;

    /** AssertionIDRequestService children. */
    private final XMLObjectChildrenList assertionIDRequestServices;

    /** NameIDFormat children. */
    private final XMLObjectChildrenList nameIDFormats;

    /**
     * Constructor.
     * 
     * @param namespaceURI the namespace the element is in
     * @param elementLocalName the local name of the XML element this Object represents
     * @param namespacePrefix the prefix for the given namespace
     */
    protected PDPDescriptorImpl(final String namespaceURI, final String elementLocalName,
            final String namespacePrefix) {
        super(namespaceURI, elementLocalName, namespacePrefix);
        authzServices = new XMLObjectChildrenList<>(this);
        assertionIDRequestServices = new XMLObjectChildrenList<>(this);
        nameIDFormats = new XMLObjectChildrenList<>(this);
    }

    /** {@inheritDoc} */
    public List getAuthzServices() {
        return authzServices;
    }

    /** {@inheritDoc} */
    public List getAssertionIDRequestServices() {
        return assertionIDRequestServices;
    }

    /** {@inheritDoc} */
    public List getNameIDFormats() {
        return nameIDFormats;
    }
    
    /** {@inheritDoc} */
    public List getEndpoints() {
        final List endpoints = new ArrayList<>();
        endpoints.addAll(authzServices);
        endpoints.addAll(assertionIDRequestServices);
        return Collections.unmodifiableList(endpoints);
    }
    
    /** {@inheritDoc} */
    public List getEndpoints(final QName type) {
        if(type.equals(AuthzService.DEFAULT_ELEMENT_NAME)){
            return Collections.unmodifiableList(new ArrayList(authzServices));
        }else if(type.equals(AssertionIDRequestService.DEFAULT_ELEMENT_NAME)){
            return Collections.unmodifiableList(new ArrayList(assertionIDRequestServices));
        }
        
        return null;
    }

    /** {@inheritDoc} */
    public List getOrderedChildren() {
        final ArrayList children = new ArrayList<>();

        children.addAll(super.getOrderedChildren());
        children.addAll(authzServices);
        children.addAll(assertionIDRequestServices);
        children.addAll(nameIDFormats);

        return children;
    }
}