/*

 * Copyright (c) 1997, 2013, 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

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package com.sun.xml.internal.ws.message;

import com.sun.istack.internal.NotNull;

import com.sun.xml.internal.bind.api.Bridge;

import com.sun.xml.internal.bind.api.BridgeContext;

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.streaming.XMLStreamReaderFactory;

import com.sun.xml.internal.ws.spi.db.XMLBridge;

import org.xml.sax.helpers.AttributesImpl;

import javax.xml.bind.JAXBException;

import javax.xml.bind.Unmarshaller;

import javax.xml.namespace.QName;

import javax.xml.stream.XMLStreamException;

import javax.xml.stream.XMLStreamReader;

import java.util.Set;

/**

 * Partial default implementation of {@link Header}.

 *

 * <p>

 * This is meant to be a convenient base class

 * for {@link Header}-derived classes.

 *

 * @author Kohsuke Kawaguchi

 */

public abstract class AbstractHeaderImpl implements Header {

    protected AbstractHeaderImpl() {

    }

    /**

     * @deprecated

     */

    public final <T> T readAsJAXB(Bridge<T> bridge, BridgeContext context) throws JAXBException {

        return readAsJAXB(bridge);

    }

    public <T> T readAsJAXB(Unmarshaller unmarshaller) throws JAXBException {

        try {

            return (T)unmarshaller.unmarshal(readHeader());

        } catch (Exception e) {

            throw new JAXBException(e);

        }

    }

    /** @deprecated */

    public <T> T readAsJAXB(Bridge<T> bridge) throws JAXBException {

        try {

            return bridge.unmarshal(readHeader());

        } catch (XMLStreamException e) {

            throw new JAXBException(e);

        }

    }

    public <T> T readAsJAXB(XMLBridge<T> bridge) throws JAXBException {

        try {

            return bridge.unmarshal(readHeader(), null);

        } catch (XMLStreamException e) {

            throw new JAXBException(e);

        }

    }

    /**

     * Default implementation that copies the infoset. Not terribly efficient.

     */

    public WSEndpointReference readAsEPR(AddressingVersion expected) throws XMLStreamException {

        XMLStreamReader xsr = readHeader();

        WSEndpointReference epr = new WSEndpointReference(xsr, expected);

        XMLStreamReaderFactory.recycle(xsr);

        return epr;

    }

    public boolean isIgnorable(@NotNull SOAPVersion soapVersion, @NotNull Set<String> roles) {

        // check mustUnderstand

        String v = getAttribute(soapVersion.nsUri, "mustUnderstand");

        if(v==null || !parseBool(v)) return true;

        if (roles == null) return true;

        // now role

        return !roles.contains(getRole(soapVersion));

    }

    public @NotNull String getRole(@NotNull SOAPVersion soapVersion) {

        String v = getAttribute(soapVersion.nsUri, soapVersion.roleAttributeName);

        if(v==null)

            v = soapVersion.implicitRole;

        return v;

    }

    public boolean isRelay() {

        String v = getAttribute(SOAPVersion.SOAP_12.nsUri,"relay");

        if(v==null) return false;   // on SOAP 1.1 message there shouldn't be such an attribute, so this works fine

        return parseBool(v);

    }

    public String getAttribute(QName name) {

        return getAttribute(name.getNamespaceURI(),name.getLocalPart());

    }

    /**

     *

     * This method assumes that the whilespace normalization has already taken place.

     */

    protected final boolean parseBool(String value) {

        if(value.length()==0)

            return false;

        char ch = value.charAt(0);

        return ch=='t' || ch=='1';

    }

    public String getStringContent() {

        try {

            XMLStreamReader xsr = readHeader();

            xsr.nextTag();

            return xsr.getElementText();

        } catch (XMLStreamException e) {

            return null;

        }

    }

    protected static final AttributesImpl EMPTY_ATTS = new AttributesImpl();

}