/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ws.core.utils;
// $Id: MimeUtils.java 3959 2007-07-20 14:44:19Z heiko.braun@jboss.com $
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import javax.mail.internet.ContentType;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.ParseException;
import javax.xml.namespace.QName;
import javax.xml.transform.stream.StreamSource;
import org.jboss.ws.Constants;
import org.jboss.ws.WSException;
import org.jboss.wsf.common.IOUtils;
import org.jboss.wsf.common.JavaUtils;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageDecoder;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
/**
* Generic mime utility class.
*
* @author <a href="mailto:jason@stacksmash.com">Jason T. Greene</a>
*/
public class MimeUtils
{
private static Map<String, Class> mime2class = new HashMap<String, Class>();
private static Map<Class, String> class2mime = new HashMap<Class, String>();
static {
mime2class.put("text/plain", java.lang.String.class);
mime2class.put("image/jpeg", java.awt.Image.class);
mime2class.put("text/xml", javax.xml.transform.Source.class);
mime2class.put("application/xml", javax.xml.transform.Source.class);
mime2class.put("application/octet-stream", javax.activation.DataHandler.class);
class2mime.put(java.awt.Image.class, "image/jpeg");
class2mime.put(javax.xml.transform.Source.class, "text/xml");
class2mime.put(java.lang.String.class, "text/plain");
}
/**
* Converts a MIME type into a proprietary JBossWS attachment xml type.
*
* @param mimeType the MIME type string to convert
* @return the xml type that this mime type corresponds to
*/
public static QName convertMimeTypeToXmlType(String mimeType)
{
StringBuilder mimeName = new StringBuilder(mimeType);
int pos = mimeName.indexOf("/");
if (pos == -1)
return null;
mimeName.setCharAt(pos, '_');
return new QName(Constants.NS_ATTACHMENT_MIME_TYPE, mimeName.toString());
}
/**
* Gets the base portion of a MIME type string. This basically just strips
* off any type parameter elements.
*
* @param mimeType any MIME type string
* @return a reduced MIME string containing no type parameters
*/
public static String getBaseMimeType(String mimeType)
{
ContentType contentType;
if (mimeType == null)
return null;
try
{
contentType = new ContentType(mimeType);
}
catch (ParseException e)
{
return null;
}
return contentType.getBaseType();
}
/**
* Checks if there is a matching mime pattern for mimeType in mimeTypes. This
* will return true if there is an exact match (for example text/plain =
* text/plain), or if there is a wildcard subtype match (text/plain =
* text/*).
*
* @param mimeType the mime type to search for
* @param mimeTypes the set of mime types to search
* @return true if there is a match, false if not
*/
public static boolean isMemberOf(String mimeType, Set mimeTypes)
{
if (mimeTypes.contains(mimeType))
return true;
try
{
if (mimeTypes.contains(new ContentType(mimeType).getPrimaryType() + "/*"))
return true;
}
catch (ParseException e)
{
// eat
}
return false;
}
/**
* Resolve the class for a mype type.
* Defaults to <code>DataHandler</code> if no mapping could be found.
*/
public static Class resolveClass(String mimeType) {
Class cl = mime2class.get(mimeType);
if(null==cl)
cl = javax.activation.DataHandler.class;
return cl;
}
/**
* Resolve the mime type for an object.
* Default to <code>application/octet-stream</code>
* if no mapping could be found.
*/
public static String resolveMimeType(Object obj) {
String mimeType = (obj instanceof MimeMultipart) ?
((MimeMultipart)obj).getContentType() :
resolveMimeType(obj.getClass());
return mimeType;
}
public static String resolveMimeType(Class clazz) {
String mimeType = "application/octet-stream";
for(Class cl : class2mime.keySet())
{
if(JavaUtils.isAssignableFrom(cl, clazz))
mimeType = class2mime.get(cl);
}
return mimeType;
}
public static ByteArrayConverter getConverterForJavaType(Class targetClazz)
{
ByteArrayConverter converter = null;
if(JavaUtils.isAssignableFrom(java.awt.Image.class, targetClazz))
converter = new ImageConverter();
else if (JavaUtils.isAssignableFrom(javax.xml.transform.Source.class, targetClazz))
converter = new SourceConverter();
else if (JavaUtils.isAssignableFrom(java.lang.String.class, targetClazz))
converter = new StringConverter();
else if (JavaUtils.isAssignableFrom(java.io.InputStream.class, targetClazz))
converter = new StreamConverter();
if(null == converter)
throw new WSException("No ByteArrayConverter for class: " + targetClazz.getName());
return converter;
}
public static ByteArrayConverter getConverterForContentType(String contentType)
{
ByteArrayConverter converter = null;
if(contentType != null)
{
if("image/jpeg".equals(contentType) || "image/jpg".equals(contentType))
converter = new ImageConverter();
else if("text/xml".equals(contentType) || "application/xml".equals(contentType))
converter = new SourceConverter();
else if("text/plain".equals(contentType))
converter = new StringConverter();
else if("application/octet-stream".equals(contentType))
converter = new StreamConverter();
}
if(null == converter)
throw new WSException("No ByteArrayConverter for content type: " + contentType);
return converter;
}
public static class ImageConverter implements ByteArrayConverter
{
public Object readFrom(InputStream in) {
Object converted = null;
try
{
JPEGImageDecoder dec = JPEGCodec.createJPEGDecoder(in);
BufferedImage bim = dec.decodeAsBufferedImage();
converted = bim;
}
catch (Exception e)
{
// ignore
}
return converted;
}
public void writeTo(Object obj, OutputStream out) {
if(obj instanceof BufferedImage)
{
JPEGImageEncoder enc = JPEGCodec.createJPEGEncoder(out);
try
{
enc.encode((BufferedImage)obj);
}
catch (IOException e)
{
throw new WSException("Failed to convert " + obj.getClass());
}
}
else
{
throw new WSException("Unable to convert " + obj.getClass());
}
}
}
public static class SourceConverter implements ByteArrayConverter
{
public Object readFrom(InputStream in) {
return new StreamSource(in);
}
public void writeTo(Object obj, OutputStream out) {
if(obj instanceof StreamSource)
{
StreamSource s = (StreamSource)obj;
try
{
IOUtils.copyStream(out, s.getInputStream());
}
catch (IOException e)
{
throw new WSException("Failed to convert " + obj.getClass());
}
}
else
{
throw new WSException("Unable to convert " + obj.getClass());
}
}
}
public static class StringConverter implements ByteArrayConverter
{
public Object readFrom(InputStream in) {
Object converted = null;
try
{
BufferedReader br = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line + "\n");
}
br.close();
converted = sb.toString();
}
catch (IOException e)
{
throw new WSException("Failed to convert java.lang.String");
}
return converted;
}
public void writeTo(Object obj, OutputStream out) {
if(obj instanceof String)
{
String s = (String)obj;
try
{
out.write(s.getBytes("UTF-8"));
}
catch (IOException e)
{
throw new WSException("Failed to convert " + obj.getClass());
}
}
else
{
throw new WSException("Unable to convert " + obj.getClass());
}
}
}
public static class StreamConverter implements ByteArrayConverter
{
public Object readFrom(InputStream in) {
return in;
}
public void writeTo(Object obj, OutputStream out) {
if(obj instanceof InputStream)
{
try
{
IOUtils.copyStream(out, (InputStream)obj);
}
catch (IOException e)
{
throw new WSException("Failed to convert " + obj.getClass());
}
}
}
}
public interface ByteArrayConverter
{
Object readFrom(InputStream in);
void writeTo(Object obj, OutputStream out);
}
}