/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.geronimo.mail.handlers;
import javax.activation.ActivationDataFlavor;
import javax.activation.DataContentHandler;
import javax.activation.DataSource;
import javax.mail.internet.ContentType;
import javax.mail.Message;
import javax.mail.MessageAware;
import javax.mail.MessageContext;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
import javax.mail.internet.ParseException;
import java.awt.datatransfer.DataFlavor;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
public class MessageHandler implements DataContentHandler {
/**
* Field dataFlavor
*/
ActivationDataFlavor dataFlavor;
public MessageHandler(){
dataFlavor = new ActivationDataFlavor(java.lang.String.class, "message/rfc822", "Text");
}
/**
* Method getDF
*
* @return dataflavor
*/
protected ActivationDataFlavor getDF() {
return dataFlavor;
}
/**
* Method getTransferDataFlavors
*
* @return dataflavors
*/
public DataFlavor[] getTransferDataFlavors() {
return (new DataFlavor[]{dataFlavor});
}
/**
* Method getTransferData
*
* @param dataflavor
* @param datasource
* @return
* @throws IOException
*/
public Object getTransferData(DataFlavor dataflavor, DataSource datasource)
throws IOException {
if (getDF().equals(dataflavor)) {
return getContent(datasource);
}
return null;
}
/**
* Method getContent
*
* @param datasource
* @return
* @throws IOException
*/
public Object getContent(DataSource datasource) throws IOException {
try {
// if this is a proper message, it implements the MessageAware interface. We need this to
// get the associated session.
if (datasource instanceof MessageAware) {
MessageContext context = ((MessageAware)datasource).getMessageContext();
// construct a mime message instance from the stream, associating it with the
// data source session.
return new MimeMessage(context.getSession(), datasource.getInputStream());
}
} catch (MessagingException e) {
// we need to transform any exceptions into an IOException.
throw new IOException("Exception writing MimeMultipart: " + e.toString());
}
return null;
}
/**
* Method writeTo
*
* @param object
* @param s
* @param outputstream
* @throws IOException
*/
public void writeTo(Object object, String s, OutputStream outputstream) throws IOException {
// proper message type?
if (object instanceof Message) {
try {
((Message)object).writeTo(outputstream);
} catch (MessagingException e) {
throw new IOException("Error parsing message: " + e.toString());
}
}
}
}