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FastInfosetDataContentHandler.java
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FastInfosetDataContentHandler.java
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/*
* Copyright (c) 1997, 2022 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.messaging.saaj.soap;
import java.io.IOException;
import java.io.OutputStream;
import java.io.InputStream;
import jakarta.activation.*;
import javax.xml.transform.Source;
import com.sun.xml.messaging.saaj.util.FastInfosetReflection;
/**
* JAF data handler for Fast Infoset content
*
* @author Santiago Pericas-Geertsen
*/
public class FastInfosetDataContentHandler implements DataContentHandler {
public static final String STR_SRC = "org.jvnet.fastinfoset.FastInfosetSource";
public FastInfosetDataContentHandler() {
}
/**
* Return the DataFlavors for this <code>DataContentHandler</code>
* @return The DataFlavors.
*/
@Override
public ActivationDataFlavor[] getTransferDataFlavors() { // throws Exception;
ActivationDataFlavor[] flavors = new ActivationDataFlavor[1];
flavors[0] = new ActivationDataFlavor(
FastInfosetReflection.getFastInfosetSource_class(),
"application/fastinfoset", "Fast Infoset");
return flavors;
}
/**
* Return the Transfer Data of type DataFlavor from InputStream
* @param flavor The DataFlavor.
* @param dataSource DataSource.
* @return The constructed Object.
* @exception IOException in case of an I/O error
*/
@Override
public Object getTransferData(ActivationDataFlavor flavor, DataSource dataSource)
throws IOException
{
if (flavor.getMimeType().startsWith("application/fastinfoset")) {
try {
if (flavor.getRepresentationClass().getName().equals(STR_SRC)) {
return FastInfosetReflection.FastInfosetSource_new(
dataSource.getInputStream());
}
}
catch (Exception e) {
throw new IOException(e.getMessage());
}
}
return null;
}
@Override
public Object getContent(DataSource dataSource) throws IOException {
try {
return FastInfosetReflection.FastInfosetSource_new(
dataSource.getInputStream());
}
catch (Exception e) {
throw new IOException(e.getMessage());
}
}
/**
* Construct an object from a byte stream
* (similar semantically to previous method, we are deciding
* which one to support)
*/
@Override
public void writeTo(Object obj, String mimeType, OutputStream os)
throws IOException
{
if (!mimeType.equals("application/fastinfoset")) {
throw new IOException("Invalid content type \"" + mimeType
+ "\" for FastInfosetDCH");
}
try {
InputStream is = FastInfosetReflection.FastInfosetSource_getInputStream(
(Source) obj);
int n; byte[] buffer = new byte[4096];
while ((n = is.read(buffer)) != -1) {
os.write(buffer, 0, n);
}
}
catch (Exception ex) {
throw new IOException(
"Error copying FI source to output stream " + ex.getMessage());
}
}
}