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/*
 * Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.ws.policy.sourcemodel.wspolicy;

/**
 *
 * @author Marek Potociar
 */
public enum XmlToken {
    Policy("Policy", true),
    ExactlyOne("ExactlyOne", true),
    All("All", true),
    PolicyReference("PolicyReference", true),
    UsingPolicy("UsingPolicy", true),
    Name("Name", false),
    Optional("Optional", false),
    Ignorable("Ignorable", false),
    PolicyUris("PolicyURIs", false),
    Uri("URI", false),
    Digest("Digest", false),
    DigestAlgorithm("DigestAlgorithm", false),
    
    UNKNOWN("", true);
    
    
    
    /**
     * Resolves URI represented as a String into an enumeration value. If the URI 
     * doesn't represent any existing enumeration value, method returns {@code null}
     * 
     * @return Enumeration value that represents given URI or {@code null} if
     * no enumeration value exists for given URI.
     */
    public static XmlToken resolveToken(String name) {
        for (XmlToken token : XmlToken.values()) {
            if (token.toString().equals(name)) {
                return token;
            }
        }

        return UNKNOWN;
    }
    
    private String tokenName;
    private boolean element;
    
    private XmlToken(final String name, boolean element) {
        this.tokenName = name;
        this.element = element;
    }

    public boolean isElement() {
        return element;
    }        

    @Override
    public String toString() {
        return tokenName;
    }        
}