/*
 * Copyright  2003-2005 The Apache Software Foundation.
 *
 *  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.apache.ws.security.conversation;

/**
 * Class ConversationConstants
 */
public class ConversationConstants {

    public final static int VERSION_05_02 = 1;
    
    public final static int VERSION_05_12 = 2;
    
    public final static int DEFAULT_VERSION = VERSION_05_02; 
    
    /**
     * WS-SecConv Feb 2005 version
     */
    public final static String WSC_NS_05_02 = "http://schemas.xmlsoap.org/ws/2005/02/sc"; 
    
    /**
     * WS-Sx version
     */
    public final static String WSC_NS_05_12 = "http://docs.oasis-open.org/ws-sx/ws-secureconversation/200512";
    
    /**
     * Token type of DerivedKeyToken
     */
    public final static String TOKEN_TYPE_DERIVED_KEY_TOKEN =  "/dk";
    
    /**
     * Token type of SecurityContextToken
     */
    public static final String TOKEN_TYPE_SECURITY_CONTEXT_TOKEN = "/sct";
    
    /**
     * Field WSC_PREFIX
     */
    public final static String WSC_PREFIX = "wsc";

    /**
     * Field SECURITY_CONTEXT_TOKEN_LN
     */
    public static final String SECURITY_CONTEXT_TOKEN_LN =
            "SecurityContextToken";

    /**
     * Field IDENTIFIER_LN
     */
    public static final String IDENTIFIER_LN = "Identifier";

    /**
     * Field EXPIRES_LN
     */
    public static final String EXPIRES_LN = "Expires";

    /**
     * Field KEYS_LN
     */
    public static final String KEYS_LN = "Keys";

    /**
     * Field SECURITY_TOKEN_REFERENCE_LN
     */
    public static final String SECURITY_TOKEN_REFERENCE_LN =
            "SecurityTokenReference";

    /**
     * Field DERIVED_KEY_TOKEN_LN
     */
    public static final String DERIVED_KEY_TOKEN_LN = "DerivedKeyToken";

    /**
     * Field PROPERTIES_LN
     */
    public static final String PROPERTIES_LN = "Properties";

    /**
     * Field LENGTH_LN
     */
    public static final String LENGTH_LN = "Length";

    /**
     * Field GENERATION_LN
     */
    public static final String GENERATION_LN = "Generation";

    /**
     * Field OFFSET_LN
     */
    public static final String OFFSET_LN = "Offset";

    /**
     * Field LABEL_LN
     */
    public static final String LABEL_LN = "Label";

    /**
     * Field NONCE_LN
     */
    public static final String NONCE_LN = "Nonce";

    public static final int DIRECT_GENERATED = 1;
    public static final int STS_GENERATED = 2;
    public static final int STSREQUEST_TOKEN = 3;
    public static final int INTEROP_SCENE1 = 4;

    public static final String IDENTIFIER = "SCT_Identifier";

    public static final int DK_SIGN = 1;
    public static final int DK_ENCRYPT = 2;
    
    public final static String DEFAULT_LABEL = "WS-SecureConversation";
    
    /**
     * Key to hold the map of security context identifiers against the 
     * service epr addresses (service scope) or wsa:Action values (operation 
     * scope).
     */
    public final static String KEY_CONTEXT_MAP = "contextMap";
    
    public interface DerivationAlgorithm {
        public final static String P_SHA_1 = "http://schemas.xmlsoap.org/ws/2005/02/sc/dk/p_sha1";
    }
    
    public static String getWSCNs(int version) throws ConversationException {
        if(VERSION_05_02 == version) {
            return WSC_NS_05_02;
        } else if(VERSION_05_12 == version) {
            return WSC_NS_05_12;
        } else {
            throw new ConversationException("unsupportedSecConvVersion");
        }
    }
    
    public static int getWSTVersion(String ns) throws ConversationException {
        if(WSC_NS_05_02.equals(ns)) {
            return VERSION_05_02;
        } else if(WSC_NS_05_12.equals(ns)) {
            return VERSION_05_12;
        } else {
            throw new ConversationException("unsupportedSecConvVersion");
        }
    }
}