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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.model.wsdl;

import com.sun.istack.NotNull;
import com.sun.xml.ws.api.model.ParameterBinding;
import com.sun.xml.ws.api.model.wsdl.WSDLMessage;
import com.sun.xml.ws.api.model.wsdl.WSDLOperation;
import com.sun.xml.ws.api.model.wsdl.WSDLPortType;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLBoundOperation;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLBoundPortType;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLMessage;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLModel;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLPart;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLPort;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLPortType;
import com.sun.xml.ws.api.model.wsdl.editable.EditableWSDLService;
import com.sun.xml.ws.policy.PolicyMap;

import jakarta.jws.WebParam.Mode;
import javax.xml.namespace.QName;

import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Implementation of WSDLModel
 *
 * @author Vivek Pandey
 */
public final class WSDLModelImpl extends AbstractExtensibleImpl implements EditableWSDLModel {
    private final Map messages = new HashMap<>();
    private final Map portTypes = new HashMap<>();
    private final Map bindings = new HashMap<>();
    private final Map services = new LinkedHashMap<>();

    private PolicyMap policyMap;
    private final Map unmBindings
        = Collections.unmodifiableMap(bindings);


    public WSDLModelImpl(@NotNull String systemId) {
        super(systemId,-1);
    }

    /**
     * To create WSDLModelImpl from WSDL that doesn't have a system ID.
     */
    public WSDLModelImpl() {
        super(null,-1);
    }

    @Override
    public void addMessage(EditableWSDLMessage msg){
        messages.put(msg.getName(), msg);
    }

    @Override
    public EditableWSDLMessage getMessage(QName name){
        return messages.get(name);
    }

    @Override
    public void addPortType(EditableWSDLPortType pt){
        portTypes.put(pt.getName(), pt);
    }

    @Override
    public EditableWSDLPortType getPortType(QName name){
        return portTypes.get(name);
    }

    @Override
    public void addBinding(EditableWSDLBoundPortType boundPortType){
        assert !bindings.containsValue(boundPortType);
        bindings.put(boundPortType.getName(), boundPortType);
    }

    @Override
    public EditableWSDLBoundPortType getBinding(QName name){
        return bindings.get(name);
    }

    @Override
    public void addService(EditableWSDLService svc){
        services.put(svc.getName(), svc);
    }

    @Override
    public EditableWSDLService getService(QName name){
        return services.get(name);
    }

    @Override
    public Map getMessages() {
        return messages;
    }

    @Override
    public @NotNull Map getPortTypes() {
        return portTypes;
    }

    @Override
    public @NotNull Map getBindings() {
        return unmBindings;
    }

    @Override
    public @NotNull Map getServices(){
        return services;
    }

    /**
     * Returns the first service QName from insertion order
     */
    @Override
    public QName getFirstServiceName(){
        if(services.isEmpty())
            return null;
        return services.values().iterator().next().getName();
    }

    /**
     *
     * @param serviceName non-null service QName
     * @param portName    non-null port QName
     * @return
     *          WSDLBoundOperation on success otherwise null. throws NPE if any of the parameters null
     */
    @Override
    public EditableWSDLBoundPortType getBinding(QName serviceName, QName portName){
        EditableWSDLService service = services.get(serviceName);
        if(service != null){
            EditableWSDLPort port = service.get(portName);
            if(port != null)
                return port.getBinding();
        }
        return null;
    }

    @Override
    public void finalizeRpcLitBinding(EditableWSDLBoundPortType boundPortType){
        assert(boundPortType != null);
        QName portTypeName = boundPortType.getPortTypeName();
        if(portTypeName == null)
            return;
        WSDLPortType pt = portTypes.get(portTypeName);
        if(pt == null)
            return;
        for (EditableWSDLBoundOperation bop : boundPortType.getBindingOperations()) {
            WSDLOperation pto = pt.get(bop.getName().getLocalPart());
            WSDLMessage inMsgName = pto.getInput().getMessage();
            if(inMsgName == null)
                continue;
            EditableWSDLMessage inMsg = messages.get(inMsgName.getName());
            int bodyindex = 0;
            if(inMsg != null){
                for(EditableWSDLPart part:inMsg.parts()){
                    String name = part.getName();
                    ParameterBinding pb = bop.getInputBinding(name);
                    if(pb.isBody()){
                        part.setIndex(bodyindex++);
                        part.setBinding(pb);
                        bop.addPart(part, Mode.IN);
                    }
                }
            }
            bodyindex=0;
            if(pto.isOneWay())
                continue;
            WSDLMessage outMsgName = pto.getOutput().getMessage();
            if(outMsgName == null)
                continue;
            EditableWSDLMessage outMsg = messages.get(outMsgName.getName());
            if(outMsg!= null){
                for(EditableWSDLPart part:outMsg.parts()){
                    String name = part.getName();
                    ParameterBinding pb = bop.getOutputBinding(name);
                    if(pb.isBody()){
                        part.setIndex(bodyindex++);
                        part.setBinding(pb);
                        bop.addPart(part, Mode.OUT);
                    }
                }
            }
        }
    }

    /**
     * Gives the PolicyMap associated with the WSDLModel
     *
     * @return PolicyMap
     */
    @Override
    public PolicyMap getPolicyMap() {
        return policyMap;
    }

    /**
     * Set PolicyMap for the WSDLModel.
     */
    @Override
    public void setPolicyMap(PolicyMap policyMap) {
        this.policyMap = policyMap;
    }
    
    /**
     * Invoked at the end of the model construction to fix up references, etc.
     */
    @Override
    public void freeze() {
        for (EditableWSDLService service : services.values()) {
            service.freeze(this);
        }
        for (EditableWSDLBoundPortType bp : bindings.values()) {
            bp.freeze();
        }
        // Enforce freeze all the portTypes referenced by this endpoints, see Bug8966673 for detail
        for (EditableWSDLPortType pt : portTypes.values()) {
            pt.freeze();
        }        
    }
}