/*
* Copyright (c) 2005, 2006, 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.
*
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package com.sun.xml.internal.ws.encoding;
import com.sun.xml.internal.ws.util.xml.XmlUtil;
import javax.activation.ActivationDataFlavor;
import javax.activation.DataContentHandler;
import javax.activation.DataSource;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import java.awt.datatransfer.DataFlavor;
import java.io.IOException;
import java.io.OutputStream;
/**
* JAF data handler for XML content
*
* @author Anil Vijendran
*/
public class XmlDataContentHandler implements DataContentHandler {
private final DataFlavor[] flavors;
public XmlDataContentHandler() throws ClassNotFoundException {
flavors = new DataFlavor[2];
flavors[0] = new ActivationDataFlavor(StreamSource.class, "text/xml", "XML");
flavors[1] = new ActivationDataFlavor(StreamSource.class, "application/xml", "XML");
}
/**
* return the DataFlavors for this <code>DataContentHandler</code>
* @return The DataFlavors.
*/
public DataFlavor[] getTransferDataFlavors() { // throws Exception;
return flavors;
}
/**
* return the Transfer Data of type DataFlavor from InputStream
* @param df The DataFlavor.
* @param ds The InputStream corresponding to the data.
* @return The constructed Object.
*/
public Object getTransferData(DataFlavor df, DataSource ds)
throws IOException {
for (DataFlavor aFlavor : flavors) {
if (aFlavor.equals(df)) {
return getContent(ds);
}
}
return null;
}
/**
*
*/
public Object getContent(DataSource dataSource) throws IOException {
return new StreamSource(dataSource.getInputStream());
}
/**
* construct an object from a byte stream
* (similar semantically to previous method, we are deciding
* which one to support)
*/
public void writeTo(Object obj, String mimeType, OutputStream os)
throws IOException {
if (!mimeType.equals("text/xml") && !mimeType.equals("application/xml"))
throw new IOException(
"Invalid content type \"" + mimeType + "\" for XmlDCH");
try {
Transformer transformer = XmlUtil.newTransformer();
StreamResult result = new StreamResult(os);
if (obj instanceof DataSource) {
// Streaming transform applies only to javax.xml.transform.StreamSource
transformer.transform((Source) getContent((DataSource)obj), result);
} else {
transformer.transform((Source) obj, result);
}
} catch (Exception ex) {
throw new IOException(
"Unable to run the JAXP transformer on a stream "
+ ex.getMessage());
}
}
}