AuthzDecisionStatementUnmarshaller.java

/*
 * Copyright [2005] [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 org.opensaml.common.impl.AbstractSAMLObjectUnmarshaller;
import org.opensaml.common.xml.SAMLConstants;
import org.opensaml.saml2.core.Action;
import org.opensaml.saml2.core.AuthzDecisionStatement;
import org.opensaml.saml2.core.DecisionTypeEnumeration;
import org.opensaml.saml2.core.Evidence;
import org.opensaml.xml.XMLObject;
import org.opensaml.xml.io.UnmarshallingException;
import org.w3c.dom.Attr;

/**
 * A thread-safe Unmarshaller for {@link org.opensaml.saml2.core.AuthzDecisionStatement}.
 */
public class AuthzDecisionStatementUnmarshaller extends AbstractSAMLObjectUnmarshaller {

    /** Constructor. */
    public AuthzDecisionStatementUnmarshaller() {
        super(SAMLConstants.SAML20_NS, AuthzDecisionStatement.DEFAULT_ELEMENT_LOCAL_NAME);
    }

    /**
     * Constructor.
     * 
     * @param namespaceURI the namespace URI of either the schema type QName or element QName of the elements this
     *            unmarshaller operates on
     * @param elementLocalName the local name of either the schema type QName or element QName of the elements this
     *            unmarshaller operates on
     */
    protected AuthzDecisionStatementUnmarshaller(String namespaceURI, String elementLocalName) {
        super(namespaceURI, elementLocalName);
    }

    /** {@inheritDoc} */
    protected void processChildElement(XMLObject parentObject, XMLObject childObject) throws UnmarshallingException {
        AuthzDecisionStatement authzDS = (AuthzDecisionStatement) parentObject;

        if (childObject instanceof Action) {
            authzDS.getActions().add((Action) childObject);
        } else if (childObject instanceof Evidence) {
            authzDS.setEvidence((Evidence) childObject);
        } else {
            super.processChildElement(parentObject, childObject);
        }
    }

    /** {@inheritDoc} */
    protected void processAttribute(XMLObject samlObject, Attr attribute) throws UnmarshallingException {
        AuthzDecisionStatement authzDS = (AuthzDecisionStatement) samlObject;

        if (attribute.getLocalName().equals(AuthzDecisionStatement.RESOURCE_ATTRIB_NAME)) {
            authzDS.setResource(attribute.getValue());
        } else if (attribute.getLocalName().equals(AuthzDecisionStatement.DECISION_ATTRIB_NAME)) {
            String value = attribute.getValue();
            if (value.equals(DecisionTypeEnumeration.PERMIT.toString())) {
                authzDS.setDecision(DecisionTypeEnumeration.PERMIT);
            } else if (value.equals(DecisionTypeEnumeration.DENY.toString())) {
                authzDS.setDecision(DecisionTypeEnumeration.DENY);
            } else if (value.equals(DecisionTypeEnumeration.INDETERMINATE.toString())) {
                authzDS.setDecision(DecisionTypeEnumeration.INDETERMINATE);
            } else {
                throw new UnmarshallingException("Unknown value for DecisionType '" + value + "'");
            }
        } else {
            super.processAttribute(samlObject, attribute);
        }
    }
}