Package org.apache.axis.encoding.ser

Source Code of org.apache.axis.encoding.ser.JAFDataHandlerSerializer

/*
* The Apache Software License, Version 1.1
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* Copyright (c) 2001 The Apache Software Foundation.  All rights
* reserved.
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* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
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*    distribution.
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*       "This product includes software developed by the
*        Apache Software Foundation (http://www.apache.org/)."
*    Alternately, this acknowledgment may appear in the software itself,
*    if and wherever such third-party acknowledgments normally appear.
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package org.apache.axis.encoding.ser;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

import javax.xml.namespace.QName;

import java.io.IOException;

import org.apache.axis.Constants;
import org.apache.axis.encoding.Serializer;
import org.apache.axis.encoding.SerializerFactory;
import org.apache.axis.encoding.SerializationContext;
import org.apache.axis.encoding.Deserializer;
import org.apache.axis.encoding.DeserializerFactory;
import org.apache.axis.encoding.DeserializationContext;
import org.apache.axis.encoding.Deserializer;
import org.apache.axis.utils.JavaUtils;

import javax.activation.DataHandler;
import org.apache.axis.Part;
import org.apache.axis.attachments.Attachments;
import org.apache.axis.Constants;
import org.apache.axis.wsdl.fromJava.Types;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.AttributesImpl;

import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.apache.axis.components.logger.LogFactory;
import org.apache.commons.logging.Log;

import org.w3c.dom.Element;
import org.w3c.dom.Document;

/**
* JAFDataHandler Serializer
* @author Rick Rineholt
* Modified by Rich Scheuerle <scheu@us.ibm.com>
*/
public class JAFDataHandlerSerializer implements Serializer {

    protected static Log log =
        LogFactory.getLog(JAFDataHandlerSerializer.class.getName());

    /**
     * Serialize a JAF DataHandler quantity.
     */
    public void serialize(QName name, Attributes attributes,
                          Object value, SerializationContext context)
        throws IOException
    {
        DataHandler dh= (DataHandler)value;
        //Add the attachment content to the message.
        Attachments attachments= context.getCurrentMessage().getAttachmentsImpl();

        if (attachments == null) {
            // Attachments apparently aren't supported.
            // Instead of throwing NullPointerException like
            // we used to do, throw something meaningful.
            throw new IOException(JavaUtils.getMessage("noAttachments"));
        }

        Part attachmentPart= attachments.createAttachmentPart(dh);

        AttributesImpl attrs = new AttributesImpl();
        if (attributes != null && 0 < attributes.getLength())
            attrs.setAttributes(attributes); //copy the existing ones.

        int typeIndex=-1;
        if((typeIndex = attrs.getIndex(Constants.URI_DEFAULT_SCHEMA_XSI,
                                "type")) != -1){

            //Found a xsi:type which should not be there for attachments.
            attrs.removeAttribute(typeIndex);
        }

        attrs.addAttribute("", Constants.ATTR_HREF, "href",
                               "CDATA", attachmentPart.getContentIdRef() );

        context.startElement(name, attrs);
        context.endElement(); //There is no data to so end the element.
    }

    public String getMechanismType() { return Constants.AXIS_SAX; }

    /**
     * Return XML schema for the specified type, suitable for insertion into
     * the <types> element of a WSDL document.
     *
     * @param types the Java2WSDL Types object which holds the context
     *              for the WSDL being generated.
     * @return true if we wrote a schema, false if we didn't.
     * @see org.apache.axis.wsdl.fromJava.Types
     */
    public boolean writeSchema(Types types) throws Exception {
        return false;
    }
}
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