EncryptedElementTypeImpl.java

/*
 * Copyright [2006] [University Corporation for Advanced Internet Development, Inc.]
 *
 * 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.opensaml.saml2.core.impl;

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

import org.opensaml.common.impl.AbstractSAMLObject;
import org.opensaml.saml2.core.EncryptedElementType;
import org.opensaml.xml.XMLObject;
import org.opensaml.xml.encryption.EncryptedData;
import org.opensaml.xml.encryption.EncryptedKey;
import org.opensaml.xml.util.XMLObjectChildrenList;

/**
 * A concrete implementation of {@link org.opensaml.saml2.core.EncryptedElementType}.
 */
public class EncryptedElementTypeImpl extends AbstractSAMLObject implements EncryptedElementType {
    
    /** EncryptedData child element. */
    private EncryptedData encryptedData;
    
    /** EncryptedKey children. */
    private final XMLObjectChildrenList<EncryptedKey> encryptedKeys;

    /**
     * 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 EncryptedElementTypeImpl(String namespaceURI, String elementLocalName, String namespacePrefix) {
        super(namespaceURI, elementLocalName, namespacePrefix);
        encryptedKeys = new XMLObjectChildrenList<EncryptedKey>(this);
    }

    /** {@inheritDoc} */
    public EncryptedData getEncryptedData() {
        return this.encryptedData;
    }

    /** {@inheritDoc} */
    public void setEncryptedData(EncryptedData newEncryptedData) {
        this.encryptedData = prepareForAssignment(this.encryptedData, newEncryptedData);
    }

    /** {@inheritDoc} */
    public List<EncryptedKey> getEncryptedKeys() {
        return this.encryptedKeys;
    }

    /** {@inheritDoc} */
    public List<XMLObject> getOrderedChildren() {
        ArrayList<XMLObject> children = new ArrayList<XMLObject>();
        
        if (encryptedData != null) {
            children.add(encryptedData);
        }
        
        children.addAll(encryptedKeys);
        
        if (children.size() == 0) {
            return null;
        }
        
        return Collections.unmodifiableList(children);
    }

}