/*******************************************************************************
* Copyright (c) 1998, 2011 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.oxm;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Iterator;
import javax.activation.DataHandler;
import javax.imageio.ImageIO;
import javax.imageio.ImageWriter;
import javax.mail.internet.ContentType;
import javax.mail.internet.MimeMultipart;
import javax.xml.namespace.QName;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.eclipse.persistence.exceptions.ConversionException;
import org.eclipse.persistence.exceptions.XMLMarshalException;
import org.eclipse.persistence.internal.helper.ClassConstants;
import org.eclipse.persistence.internal.helper.Helper;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.oxm.XMLMarshaller;
public class XMLBinaryDataHelper {
protected static XMLBinaryDataHelper binaryDataHelper;
public Class DATA_HANDLER;
public Class IMAGE;
public Class SOURCE;
public Class MULTIPART;
public XMLBinaryDataHelper() {
if (DATA_HANDLER == null) {
initializeDataTypes();
}
}
public static XMLBinaryDataHelper getXMLBinaryDataHelper() {
if (binaryDataHelper == null) {
setXMLBinaryDataHelper(new XMLBinaryDataHelper());
}
return binaryDataHelper;
}
public static void setXMLBinaryDataHelper(XMLBinaryDataHelper helper) {
binaryDataHelper = helper;
}
public void initializeDataTypes() {
//initialize types in this method to avoid loading them when the class is loaded
DATA_HANDLER = javax.activation.DataHandler.class;
IMAGE = java.awt.Image.class;
SOURCE = javax.xml.transform.Source.class;
MULTIPART = javax.mail.internet.MimeMultipart.class;
}
public Object convertObject(Object obj, Class classification, AbstractSession session) {
if (classification == DATA_HANDLER) {
return convertObjectToDataHandler(obj, session);
} else if (classification == IMAGE) {
return convertObjectToImage(obj);
} else if (classification == SOURCE) {
return convertObjectToSource(obj);
} else if (classification == MULTIPART) {
return convertObjectToMultipart(obj);
} else {
return session.getDatasourcePlatform().getConversionManager().convertObject(obj, classification);
}
}
public EncodedData getBytesFromDataHandler(DataHandler handler) {
ByteArrayOutputStream output = new ByteArrayOutputStream();
try {
handler.writeTo(output);
} catch (IOException ex) {
throw ConversionException.couldNotBeConverted(handler, byte[].class, ex);
}
return new EncodedData(output.toByteArray(), handler.getContentType());
}
public EncodedData getBytesForBinaryValue(Object attributeValue, XMLMarshaller marshaller, String mimeType) {
if (attributeValue instanceof DataHandler) {
return getBytesFromDataHandler((DataHandler) attributeValue);
} else if (attributeValue instanceof Image) {
return getBytesFromImage((Image) attributeValue, mimeType);
} else if (attributeValue instanceof Source) {
return getBytesFromSource((Source) attributeValue, marshaller, mimeType);
} else if (attributeValue instanceof MimeMultipart) {
return getBytesFromMultipart((MimeMultipart) attributeValue, marshaller);
} else if (attributeValue.getClass() == ClassConstants.APBYTE) {
return new EncodedData((byte[]) attributeValue, mimeType);
} else if (attributeValue.getClass() == ClassConstants.ABYTE) {
return getBytesFromByteObjectArray((Byte[]) attributeValue, mimeType);
}
return new EncodedData(new byte[0], null);
}
public EncodedData getBytesFromMultipart(MimeMultipart value, XMLMarshaller marshaller) {
ByteArrayOutputStream output = new ByteArrayOutputStream();
try {
ContentType contentType = new ContentType(value.getContentType());
String boundary = contentType.getParameter("boundary");
output.write(Helper.cr().getBytes());
output.write(("Content-Type: " + contentType.getBaseType() + "; boundary=\"" + boundary + "\"\n").getBytes());
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(value, byte[].class, ex);
}
try {
value.writeTo(output);
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(value, byte[].class, ex);
}
return new EncodedData(output.toByteArray(), value.getContentType());
}
public EncodedData getBytesFromSource(Source source, XMLMarshaller marshaller, String mimeType) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
StreamResult result = new StreamResult(out);
marshaller.getTransformer().transform(source, result);
if (mimeType == null) {
mimeType = "application/xml";
}
return new EncodedData(out.toByteArray(), mimeType);
}
public EncodedData getBytesFromByteObjectArray(Byte[] bytes, String mimeType) {
byte[] data = new byte[bytes.length];
for (int i = 0; i < data.length; i++) {
data[i] = bytes[i].byteValue();
}
return new EncodedData(data, mimeType);
}
public EncodedData getBytesFromImage(Image image, String mimeType) {
if ((mimeType == null) || mimeType.startsWith("image/*")) {
mimeType = "image/png";
}
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
Iterator itr = ImageIO.getImageWritersByMIMEType(mimeType);
if (itr.hasNext()) {
ImageWriter w = (ImageWriter) itr.next();
w.setOutput(ImageIO.createImageOutputStream(outputStream));
w.write(convertToBufferedImage(image));
w.dispose();
} else {
throw XMLMarshalException.noEncoderForMimeType(mimeType);
}
return new EncodedData(outputStream.toByteArray(), mimeType);
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(image, byte[].class, ex);
}
}
private BufferedImage convertToBufferedImage(Image image) throws IOException {
if (image instanceof BufferedImage) {
return (BufferedImage) image;
} else {
MediaTracker tracker = new MediaTracker(new Component() {
});// not sure if this is the right thing to do.
tracker.addImage(image, 0);
try {
tracker.waitForAll();
} catch (InterruptedException e) {
throw new IOException(e.getMessage());
}
BufferedImage bufImage = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_ARGB);
Graphics g = bufImage.createGraphics();
g.drawImage(image, 0, 0, null);
return bufImage;
}
}
public Object convertObjectToMultipart(Object obj) {
if (obj instanceof MimeMultipart) {
return obj;
}
if (obj instanceof DataHandler) {
try {
if (((DataHandler) obj).getContent() instanceof MimeMultipart) {
MimeMultipart multipart = (MimeMultipart) ((DataHandler) obj).getContent();
return multipart;
} else {
return new MimeMultipart(((DataHandler) obj).getDataSource());
}
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(obj, MULTIPART, ex);
}
} else if (obj instanceof byte[]) {
try {
byte[] bytes = (byte[]) obj;
java.io.InputStreamReader in = new java.io.InputStreamReader(new ByteArrayInputStream(bytes));
int i = 0;
while (i != -1) {
i = in.read();
}
return new MimeMultipart(new ByteArrayDataSource((byte[]) obj, "multipart/mixed"));
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(obj, MULTIPART, ex);
}
} else if (obj instanceof Byte[]) {
Byte[] objectBytes = (Byte[]) obj;
byte[] bytes = new byte[objectBytes.length];
for (int i = 0; i < objectBytes.length; i++) {
bytes[i] = objectBytes[i].byteValue();
}
try {
return new MimeMultipart(new ByteArrayDataSource(bytes, "multipart/mixed"));
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(obj, MULTIPART, ex);
}
}
return null;
}
public Object convertObjectToImage(Object obj) {
if (obj instanceof Image) {
return obj;
}
if (obj instanceof DataHandler) {
try {
if (((DataHandler) obj).getContent() instanceof Image) {
Image image = (Image) ((DataHandler) obj).getContent();
return image;
} else {
return ImageIO.read(((DataHandler) obj).getInputStream());
}
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(obj, IMAGE, ex);
}
} else if (obj instanceof byte[]) {
ByteArrayInputStream stream = new ByteArrayInputStream((byte[]) obj);
try {
return ImageIO.read(stream);
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(obj, IMAGE, ex);
}
} else if (obj instanceof Byte[]) {
Byte[] objectBytes = (Byte[]) obj;
byte[] bytes = new byte[objectBytes.length];
for (int i = 0; i < objectBytes.length; i++) {
bytes[i] = objectBytes[i].byteValue();
}
ByteArrayInputStream stream = new ByteArrayInputStream(bytes);
try {
return ImageIO.read(stream);
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(obj, IMAGE, ex);
}
}
return null;
}
public String stringFromDataHandler(DataHandler source, QName schemaTypeQName, AbstractSession session) {
ByteArrayOutputStream output = new ByteArrayOutputStream();
try {
source.writeTo(output);
return (String) ((XMLConversionManager) session.getDatasourcePlatform().getConversionManager()).convertObject(output.toByteArray(), String.class, schemaTypeQName);
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(source, ClassConstants.STRING, ex);
}
}
public String stringFromDataHandler(Object source, QName schemaTypeQName, AbstractSession session) {
return stringFromDataHandler((DataHandler) source, schemaTypeQName, session);
}
public String stringFromImage(Image image, QName schemaTypeQName, AbstractSession session) {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
String mimeType = null;
if ((mimeType == null) || mimeType.startsWith("image/*")) {
mimeType = "image/png";
}
Iterator itr = ImageIO.getImageWritersByMIMEType(mimeType);
if (itr.hasNext()) {
ImageWriter w = (ImageWriter) itr.next();
w.setOutput(ImageIO.createImageOutputStream(outputStream));
w.write(convertToBufferedImage(image));
w.dispose();
} else {
throw XMLMarshalException.noEncoderForMimeType(mimeType);
}
return ((XMLConversionManager) session.getDatasourcePlatform().getConversionManager()).buildBase64StringFromBytes(outputStream.toByteArray());
} catch (Exception ex) {
throw ConversionException.couldNotBeConverted(image, byte[].class, ex);
}
}
public String stringFromSource(Source source, QName schemaTypeQName, AbstractSession session) {
DataHandler handler = new DataHandler(source, "text/xml");
return stringFromDataHandler(handler, schemaTypeQName, session);
}
public String stringFromMultipart(MimeMultipart multipart, QName schemaTypeQName, AbstractSession session) {
DataHandler handler = new DataHandler(multipart, multipart.getContentType());
return stringFromDataHandler(handler, schemaTypeQName, session);
}
public DataHandler convertObjectToDataHandler(Object sourceObject, AbstractSession session) {
DataHandler handler = null;
if (sourceObject instanceof DataHandler) {
return (DataHandler) sourceObject;
} else if (sourceObject instanceof byte[]) {
byte[] bytes = (byte[]) sourceObject;
handler = new DataHandler(new ByteArrayDataSource(bytes, "application/octet-stream"));
} else if (sourceObject instanceof Byte[]) {
byte[] bytes = (byte[]) session.getDatasourcePlatform().getConversionManager().convertObject(sourceObject, ClassConstants.APBYTE);
handler = new DataHandler(new ByteArrayDataSource(bytes, "application/octet-stream"));
}
if (sourceObject instanceof String) {
//assume base64 String
byte[] bytes = ((XMLConversionManager) session.getDatasourcePlatform().getConversionManager()).convertSchemaBase64ToByteArray(sourceObject);
handler = new DataHandler(new ByteArrayDataSource(bytes, "application/octet-stream"));
} else if (sourceObject instanceof Image) {
handler = new DataHandler(sourceObject, "image/jpeg");
} else if (sourceObject instanceof Source) {
handler = new DataHandler(sourceObject, "text/xml");
} else if (sourceObject instanceof MimeMultipart) {
handler = new DataHandler(sourceObject, ((MimeMultipart) sourceObject).getContentType());
}
return handler;
}
public Object convertObjectToSource(Object obj) {
if (obj instanceof Source) {
return obj;
}
if (obj instanceof DataHandler) {
try {
Source source = (Source) ((DataHandler) obj).getContent();
return source;
} catch (Exception ex) {
}
} else if (obj instanceof byte[]) {
ByteArrayInputStream stream = new ByteArrayInputStream((byte[]) obj);
return new StreamSource(stream);
} else if (obj instanceof Byte[]) {
Byte[] objectBytes = (Byte[]) obj;
byte[] bytes = new byte[objectBytes.length];
for (int i = 0; i < objectBytes.length; i++) {
bytes[i] = objectBytes[i].byteValue();
}
ByteArrayInputStream stream = new ByteArrayInputStream(bytes);
return new StreamSource(stream);
}
return null;
}
/**
* INTERNAL
* @author mmacivor
*
*/
public class EncodedData {
private byte[] data;
private String mimeType;
public EncodedData(byte[] bytes, String contentType) {
data = bytes;
mimeType = contentType;
}
public String getMimeType() {
return mimeType;
}
public byte[] getData() {
return data;
}
public void setMimeType(String type) {
mimeType = type;
}
public void setData(byte[] bytes) {
data = bytes;
}
}
}