/*
 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.tools.internal.ws.wsdl.parser;

import com.sun.tools.internal.ws.api.wsdl.TWSDLExtensible;
import com.sun.tools.internal.ws.api.wsdl.TWSDLParserContext;
import com.sun.tools.internal.ws.util.xml.XmlUtil;
import com.sun.tools.internal.ws.wsdl.document.soap.*;
import com.sun.tools.internal.ws.wsdl.framework.TWSDLParserContextImpl;
import org.w3c.dom.Element;
import org.xml.sax.Locator;

import javax.xml.namespace.QName;
import java.util.Iterator;
import java.util.Map;

/**
 * The SOAP extension handler for WSDL.
 *
 * @author WS Development Team
 */
public class SOAPExtensionHandler extends AbstractExtensionHandler {

    public SOAPExtensionHandler(Map<String, AbstractExtensionHandler> extensionHandlerMap) {
        super(extensionHandlerMap);
    }

    public String getNamespaceURI() {
        return Constants.NS_WSDL_SOAP;
    }

    public boolean handleDefinitionsExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        Util.fail(
            "parsing.invalidExtensionElement",
            e.getTagName(),
            e.getNamespaceURI());
        return false; // keep compiler happy
    }

    public boolean handleTypesExtension(
        com.sun.tools.internal.ws.api.wsdl.TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        Util.fail(
            "parsing.invalidExtensionElement",
            e.getTagName(),
            e.getNamespaceURI());
        return false; // keep compiler happy
    }

    protected SOAPBinding getSOAPBinding(Locator location){
        return new SOAPBinding(location);
    }

    public boolean handleBindingExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        if (XmlUtil.matchesTagNS(e, getBindingQName())) {
            context.push();
            context.registerNamespaces(e);

            SOAPBinding binding = getSOAPBinding(context.getLocation(e));

            // NOTE - the "transport" attribute is required according to section 3.3 of the WSDL 1.1 spec,
            // but optional according to the schema in appendix A 4.2 of the same document!
            String transport =
                Util.getRequiredAttribute(e, Constants.ATTR_TRANSPORT);
            binding.setTransport(transport);

            String style = XmlUtil.getAttributeOrNull(e, Constants.ATTR_STYLE);
            if (style != null) {
                if (style.equals(Constants.ATTRVALUE_RPC)) {
                    binding.setStyle(SOAPStyle.RPC);
                } else if (style.equals(Constants.ATTRVALUE_DOCUMENT)) {
                    binding.setStyle(SOAPStyle.DOCUMENT);
                } else {
                    Util.fail(
                        "parsing.invalidAttributeValue",
                        Constants.ATTR_STYLE,
                        style);
                }
            }
            parent.addExtension(binding);
            context.pop();
//            context.fireDoneParsingEntity(getBindingQName(), binding);
            return true;
        } else {
            Util.fail(
                "parsing.invalidExtensionElement",
                e.getTagName(),
                e.getNamespaceURI());
            return false; // keep compiler happy
        }
    }

    public boolean handleOperationExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        if (XmlUtil.matchesTagNS(e, getOperationQName())) {
            context.push();
            context.registerNamespaces(e);

            SOAPOperation operation = new SOAPOperation(context.getLocation(e));

            String soapAction =
                XmlUtil.getAttributeOrNull(e, Constants.ATTR_SOAP_ACTION);
            if (soapAction != null) {
                operation.setSOAPAction(soapAction);
            }

            String style = XmlUtil.getAttributeOrNull(e, Constants.ATTR_STYLE);
            if (style != null) {
                if (style.equals(Constants.ATTRVALUE_RPC)) {
                    operation.setStyle(SOAPStyle.RPC);
                } else if (style.equals(Constants.ATTRVALUE_DOCUMENT)) {
                    operation.setStyle(SOAPStyle.DOCUMENT);
                } else {
                    Util.fail(
                        "parsing.invalidAttributeValue",
                        Constants.ATTR_STYLE,
                        style);
                }
            }
            parent.addExtension(operation);
            context.pop();
//            context.fireDoneParsingEntity(
//                getOperationQName(),
//                operation);
            return true;
        } else {
            Util.fail(
                "parsing.invalidExtensionElement",
                e.getTagName(),
                e.getNamespaceURI());
            return false; // keep compiler happy
        }
    }

    public boolean handleInputExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        return handleInputOutputExtension(context, parent, e);
    }
    public boolean handleOutputExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        return handleInputOutputExtension(context, parent, e);
    }

    @Override
    protected boolean handleMIMEPartExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        return handleInputOutputExtension(context, parent, e);
    }

    protected boolean handleInputOutputExtension(
        TWSDLParserContext contextif,
        TWSDLExtensible parent,
        Element e) {
        TWSDLParserContextImpl context = (TWSDLParserContextImpl)contextif;
        if (XmlUtil.matchesTagNS(e, getBodyQName())) {
            context.push();
            context.registerNamespaces(e);

            SOAPBody body = new SOAPBody(context.getLocation(e));

            String use = XmlUtil.getAttributeOrNull(e, Constants.ATTR_USE);
            if (use != null) {
                if (use.equals(Constants.ATTRVALUE_LITERAL)) {
                    body.setUse(SOAPUse.LITERAL);
                } else if (use.equals(Constants.ATTRVALUE_ENCODED)) {
                    body.setUse(SOAPUse.ENCODED);
                } else {
                    Util.fail(
                        "parsing.invalidAttributeValue",
                        Constants.ATTR_USE,
                        use);
                }
            }

            String namespace =
                XmlUtil.getAttributeOrNull(e, Constants.ATTR_NAMESPACE);
            if (namespace != null) {
                body.setNamespace(namespace);
            }

            String encodingStyle =
                XmlUtil.getAttributeOrNull(e, Constants.ATTR_ENCODING_STYLE);
            if (encodingStyle != null) {
                body.setEncodingStyle(encodingStyle);
            }

            String parts = XmlUtil.getAttributeOrNull(e, Constants.ATTR_PARTS);
            if (parts != null) {
                body.setParts(parts);
            }

            parent.addExtension(body);
            context.pop();
//            context.fireDoneParsingEntity(getBodyQName(), body);
            return true;
        } else if (XmlUtil.matchesTagNS(e, getHeaderQName())) {
            return handleHeaderElement(parent, e, context);
        } else {
            Util.fail("parsing.invalidExtensionElement", e.getTagName(), e.getNamespaceURI());
            return false; // keep compiler happy
        }
    }

    private boolean handleHeaderElement(TWSDLExtensible parent, Element e, TWSDLParserContextImpl context) {
        context.push();
        context.registerNamespaces(e);

        SOAPHeader header = new SOAPHeader(context.getLocation(e));

        String use = XmlUtil.getAttributeOrNull(e, Constants.ATTR_USE);
        if (use != null) {
            if (use.equals(Constants.ATTRVALUE_LITERAL)) {
                header.setUse(SOAPUse.LITERAL);
            } else if (use.equals(Constants.ATTRVALUE_ENCODED)) {
                header.setUse(SOAPUse.ENCODED);
            } else {
                Util.fail("parsing.invalidAttributeValue", Constants.ATTR_USE, use);
            }
        }

        String namespace = XmlUtil.getAttributeOrNull(e, Constants.ATTR_NAMESPACE);
        if (namespace != null) {
            header.setNamespace(namespace);
        }

        String encodingStyle = XmlUtil.getAttributeOrNull(e, Constants.ATTR_ENCODING_STYLE);
        if (encodingStyle != null) {
            header.setEncodingStyle(encodingStyle);
        }

        String part = XmlUtil.getAttributeOrNull(e, Constants.ATTR_PART);
        if (part != null) {
            header.setPart(part);
        }

        String messageAttr = XmlUtil.getAttributeOrNull(e, Constants.ATTR_MESSAGE);
        if (messageAttr != null) {
            header.setMessage(context.translateQualifiedName(context.getLocation(e), messageAttr));
        }

        for (Iterator iter = XmlUtil.getAllChildren(e); iter.hasNext();) {
            Element e2 = Util.nextElement(iter);
            if (e2 == null)
                break;

            if (XmlUtil.matchesTagNS(e2, getHeaderfaultQName())) {
                handleHeaderFaultElement(e, context, header, use, e2);
            } else {
                Util.fail("parsing.invalidElement", e2.getTagName(), e2.getNamespaceURI());
            }
        }

        parent.addExtension(header);
        context.pop();
        context.fireDoneParsingEntity(getHeaderQName(), header);
        return true;
    }

    private void handleHeaderFaultElement(Element e, TWSDLParserContextImpl context, SOAPHeader header, String use, Element e2) {
        context.push();
        context.registerNamespaces(e);

        SOAPHeaderFault headerfault = new SOAPHeaderFault(context.getLocation(e));

        String use2 = XmlUtil.getAttributeOrNull(e2, Constants.ATTR_USE);
        if (use2 != null) {
            if (use2.equals(Constants.ATTRVALUE_LITERAL)) {
                headerfault.setUse(SOAPUse.LITERAL);
            } else if (use.equals(Constants.ATTRVALUE_ENCODED)) {
                headerfault.setUse(SOAPUse.ENCODED);
            } else {
                Util.fail("parsing.invalidAttributeValue", Constants.ATTR_USE, use2);
            }
        }

        String namespace2 = XmlUtil.getAttributeOrNull(e2, Constants.ATTR_NAMESPACE);
        if (namespace2 != null) {
            headerfault.setNamespace(namespace2);
        }

        String encodingStyle2 = XmlUtil.getAttributeOrNull(e2, Constants.ATTR_ENCODING_STYLE);
        if (encodingStyle2 != null) {
            headerfault.setEncodingStyle(encodingStyle2);
        }

        String part2 = XmlUtil.getAttributeOrNull(e2, Constants.ATTR_PART);
        if (part2 != null) {
            headerfault.setPart(part2);
        }

        String messageAttr2 = XmlUtil.getAttributeOrNull(e2, Constants.ATTR_MESSAGE);
        if (messageAttr2 != null) {
            headerfault.setMessage(
                context.translateQualifiedName(context.getLocation(e2), messageAttr2));
        }

        header.add(headerfault);
        context.pop();
    }

    public boolean handleFaultExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        if (XmlUtil.matchesTagNS(e, getFaultQName())) {
            context.push();
            context.registerNamespaces(e);

            SOAPFault fault = new SOAPFault(context.getLocation(e));

            String name = XmlUtil.getAttributeOrNull(e, Constants.ATTR_NAME);
            if (name != null) {
                fault.setName(name);
            }

            String use = XmlUtil.getAttributeOrNull(e, Constants.ATTR_USE);
            if (use != null) {
                if (use.equals(Constants.ATTRVALUE_LITERAL)) {
                    fault.setUse(SOAPUse.LITERAL);
                } else if (use.equals(Constants.ATTRVALUE_ENCODED)) {
                    fault.setUse(SOAPUse.ENCODED);
                } else {
                    Util.fail(
                        "parsing.invalidAttributeValue",
                        Constants.ATTR_USE,
                        use);
                }
            }

            String namespace =
                XmlUtil.getAttributeOrNull(e, Constants.ATTR_NAMESPACE);
            if (namespace != null) {
                fault.setNamespace(namespace);
            }

            String encodingStyle =
                XmlUtil.getAttributeOrNull(e, Constants.ATTR_ENCODING_STYLE);
            if (encodingStyle != null) {
                fault.setEncodingStyle(encodingStyle);
            }

            parent.addExtension(fault);
            context.pop();
//            context.fireDoneParsingEntity(getFaultQName(), fault);
            return true;
        } else if (XmlUtil.matchesTagNS(e, getHeaderQName())) {
            // although SOAP spec doesn't define meaning of this extension; it is allowed
            // to be here, so we have to accept it, not fail (bug 13576977)
            return handleHeaderElement(parent, e, (TWSDLParserContextImpl) context);
        } else {
            Util.fail(
                "parsing.invalidExtensionElement",
                e.getTagName(),
                e.getNamespaceURI());
            return false; // keep compiler happy
        }
    }

    public boolean handleServiceExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        Util.fail(
            "parsing.invalidExtensionElement",
            e.getTagName(),
            e.getNamespaceURI());
        return false; // keep compiler happy
    }

    @Override
    public boolean handlePortExtension(
        TWSDLParserContext context,
        TWSDLExtensible parent,
        Element e) {
        if (XmlUtil.matchesTagNS(e, getAddressQName())) {
            context.push();
            context.registerNamespaces(e);

            SOAPAddress address = new SOAPAddress(context.getLocation(e));

            String location =
                Util.getRequiredAttribute(e, Constants.ATTR_LOCATION);
            address.setLocation(location);

            parent.addExtension(address);
            context.pop();
//            context.fireDoneParsingEntity(getAddressQName(), address);
            return true;
        } else {
            Util.fail(
                "parsing.invalidExtensionElement",
                e.getTagName(),
                e.getNamespaceURI());
            return false; // keep compiler happy
        }
    }

    public boolean handlePortTypeExtension(TWSDLParserContext context, TWSDLExtensible parent, Element e) {
       Util.fail(
            "parsing.invalidExtensionElement",
            e.getTagName(),
            e.getNamespaceURI());
        return false; // keep compiler happy
    }

    protected QName getBodyQName(){
        return SOAPConstants.QNAME_BODY;
    }

    protected QName getHeaderQName(){
        return SOAPConstants.QNAME_HEADER;
    }

    protected QName getHeaderfaultQName(){
        return SOAPConstants.QNAME_HEADERFAULT;
    }

    protected QName getOperationQName(){
        return SOAPConstants.QNAME_OPERATION;
    }

    protected QName getFaultQName(){
        return SOAPConstants.QNAME_FAULT;
    }

    protected QName getAddressQName(){
        return SOAPConstants.QNAME_ADDRESS;
    }

    protected QName getBindingQName(){
        return SOAPConstants.QNAME_BINDING;
    }
}
