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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.transport.tcp.util;

import com.sun.xml.ws.transport.tcp.resources.MessagesMessages;
import com.sun.xml.ws.transport.tcp.util.TCPSettings.EncodingMode;
import com.sun.xml.ws.api.SOAPVersion;
import com.sun.xml.ws.api.WSBinding;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import jakarta.xml.ws.soap.MTOMFeature;

/**
 * @author Alexey Stashok
 */
public final class BindingUtils {
    private static List SOAP11_PARAMS;
    private static List SOAP12_PARAMS;
    private static List MTOM11_PARAMS;
    private static List MTOM12_PARAMS;

    private static NegotiatedBindingContent SOAP11_BINDING_CONTENT;

    private static NegotiatedBindingContent SOAP12_BINDING_CONTENT;

    private static NegotiatedBindingContent MTOM11_BINDING_CONTENT;

    private static NegotiatedBindingContent MTOM12_BINDING_CONTENT;

    static {
        initiate();
    }

    private static void initiate() {
        // Fill out negotiation mime parameters

        // Add SOAP parameters
        SOAP11_PARAMS = Arrays.asList(TCPConstants.CHARSET_PROPERTY, TCPConstants.TRANSPORT_SOAP_ACTION_PROPERTY);
        SOAP12_PARAMS = Arrays.asList(TCPConstants.CHARSET_PROPERTY, TCPConstants.SOAP_ACTION_PROPERTY);

        // Add MTOM parameters
        MTOM11_PARAMS = new ArrayList<>(SOAP11_PARAMS);
        MTOM11_PARAMS.add("boundary");
        MTOM11_PARAMS.add("start-info");
        MTOM11_PARAMS.add("type");

        MTOM12_PARAMS = new ArrayList<>(SOAP12_PARAMS);
        MTOM12_PARAMS.add("boundary");
        MTOM12_PARAMS.add("start-info");
        MTOM12_PARAMS.add("type");

        SOAP11_BINDING_CONTENT =
                new NegotiatedBindingContent(new ArrayList<>(1), SOAP11_PARAMS);

        SOAP12_BINDING_CONTENT =
                new NegotiatedBindingContent(new ArrayList<>(1), SOAP12_PARAMS);

        MTOM11_BINDING_CONTENT =
                new NegotiatedBindingContent(new ArrayList<>(2), MTOM11_PARAMS);

        MTOM12_BINDING_CONTENT =
                new NegotiatedBindingContent(new ArrayList<>(2), MTOM12_PARAMS);

        // Fill out negotiation mime types

        // Add FI stateful if enabled
        if (TCPSettings.getInstance().getEncodingMode() == EncodingMode.FI_STATEFUL) {
            SOAP11_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.FAST_INFOSET_STATEFUL_SOAP11);
            SOAP12_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.FAST_INFOSET_STATEFUL_SOAP12);
        }

        // Add FI stateless if enabled
        if (TCPSettings.getInstance().getEncodingMode() == EncodingMode.FI_STATELESS) {
            SOAP11_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.FAST_INFOSET_SOAP11);
            SOAP12_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.FAST_INFOSET_SOAP12);
        }

        // Add SOAP mime types
        SOAP11_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.SOAP11);
        SOAP12_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.SOAP12);

        // Add MTOM mime types
        MTOM11_BINDING_CONTENT.negotiatedMimeTypes.addAll(SOAP11_BINDING_CONTENT.negotiatedMimeTypes);
        MTOM11_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.MTOM);
        MTOM12_BINDING_CONTENT.negotiatedMimeTypes.addAll(SOAP12_BINDING_CONTENT.negotiatedMimeTypes);
        MTOM12_BINDING_CONTENT.negotiatedMimeTypes.add(MimeTypeConstants.MTOM);
    }

    public static NegotiatedBindingContent getNegotiatedContentTypesAndParams(final WSBinding binding) {
        if (binding.getSOAPVersion().equals(SOAPVersion.SOAP_11)) {
            if (isMTOMEnabled(binding)) {
                return MTOM11_BINDING_CONTENT;
            } else {
                return SOAP11_BINDING_CONTENT;
            }
        } else if (binding.getSOAPVersion().equals(SOAPVersion.SOAP_12)) {
            if (isMTOMEnabled(binding)) {
                return MTOM12_BINDING_CONTENT;
            } else {
                return SOAP12_BINDING_CONTENT;
            }
        }

        throw new AssertionError(MessagesMessages.WSTCP_0009_UNKNOWN_BINDING(binding));
    }

    private static boolean isMTOMEnabled(final WSBinding binding) {
        return binding.isFeatureEnabled(MTOMFeature.class);
    }

    public static final class NegotiatedBindingContent {
        public final List negotiatedMimeTypes;
        public final List negotiatedParams;

        public NegotiatedBindingContent(List negotiatedMimeTypes, List negotiatedParams) {
            this.negotiatedMimeTypes = negotiatedMimeTypes;
            this.negotiatedParams = negotiatedParams;
        }
    }
}