/*
 * Copyright 2005-2006 Sun Microsystems, Inc.  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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */
package com.sun.xml.internal.ws.addressing;

import com.sun.istack.internal.NotNull;
import com.sun.xml.internal.ws.api.PropertySet;
import com.sun.xml.internal.ws.api.SOAPVersion;
import com.sun.xml.internal.ws.api.addressing.AddressingVersion;
import com.sun.xml.internal.ws.api.addressing.WSEndpointReference;
import com.sun.xml.internal.ws.api.message.Header;
import com.sun.xml.internal.ws.api.message.Message;
import com.sun.xml.internal.ws.api.message.Packet;
import com.sun.xml.internal.ws.developer.JAXWSProperties;

import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;

/**
 * Provides access to the Addressing headers.
 *
 * @author Kohsuke Kawaguchi
 * @author Rama Pulavarthi
 * @since 2.1.3
 */
public class WsaPropertyBag extends PropertySet {
    private final @NotNull AddressingVersion addressingVersion;
    private final @NotNull SOAPVersion soapVersion;
    /**
     * We can't store {@link Message} here as those may get replaced as
     * the packet travels through the pipeline.
     */
    private final @NotNull Packet packet;


    WsaPropertyBag(AddressingVersion addressingVersion, SOAPVersion soapVersion, Packet packet) {
        this.addressingVersion = addressingVersion;
        this.soapVersion = soapVersion;
        this.packet = packet;
    }

    /**
     * Gets the <tt>wsa:To</tt> header.
     *
     * @return
     *      null if the incoming SOAP message didn't have the header.
     */
    @Property(JAXWSProperties.ADDRESSING_TO)
    public String getTo() throws XMLStreamException {
        Header h = packet.getMessage().getHeaders().get(addressingVersion.toTag, false);
        if (h == null) return null;
        return h.getStringContent();
    }

    /**
     * Gets the <tt>wsa:From</tt> header.
     *
     * @return
     *      null if the incoming SOAP message didn't have the header.
     */
    @Property(JAXWSProperties.ADDRESSING_FROM)
    public WSEndpointReference getFrom() throws XMLStreamException {
        return getEPR(addressingVersion.fromTag);
    }

    /**
     * Gets the <tt>wsa:Action</tt> header content as String.
     *
     * @return
     *      null if the incoming SOAP message didn't have the header.
     */
    @Property(JAXWSProperties.ADDRESSING_ACTION)
    public String getAction() {
        Header h = packet.getMessage().getHeaders().get(addressingVersion.actionTag, false);
        if(h==null) return null;
        return h.getStringContent();
    }

    /**
     * Gets the <tt>wsa:MessageID</tt> header content as String.
     *
     * @return
     *      null if the incoming SOAP message didn't have the header.
     */
    // WsaServerTube.REQUEST_MESSAGE_ID is exposed for backward compatibility with 2.1
    @Property({JAXWSProperties.ADDRESSING_MESSAGEID,WsaServerTube.REQUEST_MESSAGE_ID})
    public String getMessageID() {
        return packet.getMessage().getHeaders().getMessageID(addressingVersion,soapVersion);
    }

    private WSEndpointReference getEPR(QName tag) throws XMLStreamException {
        Header h = packet.getMessage().getHeaders().get(tag, false);
        if(h==null) return null;
        return h.readAsEPR(addressingVersion);
    }

    protected PropertyMap getPropertyMap() {
        return model;
    }

    private static final PropertyMap model;
    static {
        model = parse(WsaPropertyBag.class);
    }
}