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/*
 * Copyright (c) 1997, 2018 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.api.message;

import com.sun.istack.NotNull;
import com.sun.xml.bind.api.Bridge;
import com.sun.xml.bind.api.JAXBRIContext;
import com.sun.xml.bind.v2.runtime.MarshallerImpl;
import com.sun.xml.ws.api.SOAPVersion;
import com.sun.xml.ws.api.pipe.Pipe;
import com.sun.xml.ws.message.DOMHeader;
import com.sun.xml.ws.message.StringHeader;
import com.sun.xml.ws.message.jaxb.JAXBHeader;
import com.sun.xml.ws.message.saaj.SAAJHeader;
import com.sun.xml.ws.message.stream.StreamHeader11;
import com.sun.xml.ws.message.stream.StreamHeader12;
import com.sun.xml.ws.spi.db.BindingContext;
import com.sun.xml.ws.spi.db.BindingContextFactory;
import com.sun.xml.ws.spi.db.XMLBridge;

import org.w3c.dom.Element;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.Marshaller;
import javax.xml.namespace.QName;
import javax.xml.soap.SOAPHeaderElement;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

/**
 * Factory methods for various {@link Header} implementations.
 *
 * 
 * This class provides various methods to create different
 * flavors of {@link Header} classes that store data
 * in different formats.
 *
 * 

 * This is a part of the JAX-WS RI internal API so that
 * {@link Pipe} implementations can reuse the implementations
 * done inside the JAX-WS without having a strong dependency
 * to the actual class.
 *
 * 

 * If you find some of the useful convenience methods missing
 * from this class, please talk to us.
 *
 *
 * @author Kohsuke Kawaguchi
 */
public abstract class Headers {
    private Headers() {}

    /**
     * @deprecated
     *      Use {@link #create(BindingContext, Object)} instead.
     */
    public static Header create(SOAPVersion soapVersion, Marshaller m, Object o) {
        return new JAXBHeader(BindingContextFactory.getBindingContext(m),o);
    }

    /**
     * Creates a {@link Header} backed a by a JAXB bean.
     */
    public static Header create(JAXBContext context, Object o) {
        return new JAXBHeader(BindingContextFactory.create(context),o);
    }
    
    public static Header create(BindingContext context, Object o) {
        return new JAXBHeader(context,o);
    }

    /**
     * Creates a {@link Header} backed a by a JAXB bean, with the given tag name.
     *
     * See {@link #create(SOAPVersion, Marshaller, Object)} for the meaning
     * of other parameters.
     *
     * @param tagName
     *      The name of the newly created header. Must not be null.
     * @param o
     *      The JAXB bean that represents the contents of the header. Must not be null.
     */
    public static Header create(SOAPVersion soapVersion, Marshaller m, QName tagName, Object o) {
        return create(soapVersion,m,new JAXBElement(tagName,o.getClass(),o));
    }

    /**
     * Creates a {@link Header} backed a by a JAXB bean.
     * @deprecated
     */
    public static Header create(Bridge bridge, Object jaxbObject) {
        return new JAXBHeader(new com.sun.xml.ws.db.glassfish.BridgeWrapper(null,bridge), jaxbObject);
    }
    
    public static Header create(XMLBridge bridge, Object jaxbObject) {
        return new JAXBHeader(bridge, jaxbObject);
    }

    /**
     * Creates a new {@link Header} backed by a SAAJ object.
     */
    public static Header create(SOAPHeaderElement header) {
        return new SAAJHeader(header);
    }

    /**
     * Creates a new {@link Header} backed by an {@link Element}.
     */
    public static Header create( Element node ) {
        return new DOMHeader(node);
    }

    /**
     * @deprecated
     *      Use {@link #create(Element)}
     */
    public static Header create( SOAPVersion soapVersion, Element node ) {
        return create(node);
    }

    /**
     * Creates a new {@link Header} that reads from {@link XMLStreamReader}.
     *
     * 
     * Note that the header implementation will read the entire data
     * into memory anyway, so this might not be as efficient as you might hope.
     */
    public static Header create( SOAPVersion soapVersion, XMLStreamReader reader ) throws XMLStreamException {
        switch(soapVersion) {
        case SOAP_11:
            return new StreamHeader11(reader);
        case SOAP_12:
            return new StreamHeader12(reader);
        default:
            throw new AssertionError();
        }
    }

    /**
     * Creates a new {@link Header} that that has a single text value in it
     * (IOW, of the form <foo>text</foo>.)
     *
     * @param name QName of the header element
     * @param value text value of the header
     */
    public static Header create(QName name, String value) {
        return new StringHeader(name, value);
    }

    /**
     * Creates a new {@link Header} that that has a single text value in it
     * (IOW, of the form <foo>text</foo>.)
     *
     * @param name QName of the header element
     * @param value text value of the header
     */
    public static Header createMustUnderstand(@NotNull SOAPVersion soapVersion, @NotNull QName name,@NotNull String value) {
        return new StringHeader(name, value,soapVersion,true);
    }
}