/* | |
* 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.axis2.datasource.jaxb; | |
import org.apache.axiom.om.OMException; | |
import org.apache.axiom.om.OMXMLStreamReader; | |
import org.apache.axis2.context.MessageContext; | |
import org.apache.axis2.jaxws.i18n.Messages; | |
import org.apache.commons.logging.Log; | |
import org.apache.commons.logging.LogFactory; | |
import javax.activation.DataHandler; | |
import javax.xml.bind.attachment.AttachmentUnmarshaller; | |
import javax.xml.stream.XMLStreamReader; | |
import java.io.ByteArrayOutputStream; | |
import java.io.IOException; | |
import java.io.InputStream; | |
/** | |
* JAXBAttachmentUnmarshaller | |
* <p/> | |
* An implementation of the <link>javax.xml.bind.attachment.AttachmentUnmarshaller</link> that is | |
* used for deserializing XOP elements into their corresponding binary data packages. | |
*/ | |
public class JAXBAttachmentUnmarshaller extends AttachmentUnmarshaller { | |
private static final Log log = LogFactory.getLog(JAXBAttachmentUnmarshaller.class); | |
private MessageContext msgContext; | |
private XMLStreamReader xmlStreamReader; | |
public JAXBAttachmentUnmarshaller(MessageContext msgContext, | |
XMLStreamReader xmlStreamReader) { | |
this.msgContext = msgContext; | |
} | |
public boolean isXOPPackage() { | |
// Any message that is received might contain MTOM. | |
// So always return true. | |
boolean value = true; | |
// Have the OM XMLStreamReader (OMStAXWrapper) | |
// sent xop:include events | |
if (xmlStreamReader instanceof OMXMLStreamReader) { | |
((OMXMLStreamReader) xmlStreamReader).setInlineMTOM(true); | |
} | |
if (log.isDebugEnabled()){ | |
log.debug("isXOPPackage returns " + value); | |
} | |
return value; | |
} | |
public byte[] getAttachmentAsByteArray(String cid) { | |
if (log.isDebugEnabled()) { | |
log.debug("Attempting to retrieve attachment [" + cid + "] as a byte[]"); | |
} | |
DataHandler dh = getAttachmentAsDataHandler(cid); | |
if (dh != null) { | |
try { | |
return convert(dh); | |
} catch (IOException ioe) { | |
if (log.isDebugEnabled()) { | |
log.debug("Exception occurred while getting the byte[] " + ioe); | |
} | |
throw new OMException(ioe); | |
} | |
} | |
if (log.isDebugEnabled()) { | |
log.debug("returning null byte[]"); | |
} | |
return null; | |
} | |
public DataHandler getAttachmentAsDataHandler(String cid) { | |
if (log.isDebugEnabled()) { | |
log.debug("Attempting to retrieve attachment [" + cid + "] as a DataHandler"); | |
} | |
DataHandler dh = getDataHandler(cid); | |
if (dh != null) { | |
return dh; | |
} else { | |
String cid2 = getNewCID(cid); | |
if (log.isDebugEnabled()) { | |
log.debug("A dataHandler was not found for [" + cid + "] trying [" + cid2 + "]"); | |
} | |
dh = getDataHandler(cid2); | |
if (dh != null) { | |
return dh; | |
} | |
} | |
// No Data Handler found | |
throw new OMException(Messages.getMessage("noDataHandler", cid)); | |
} | |
/** | |
* @param cid | |
* @return cid with translated characters | |
*/ | |
private String getNewCID(String cid) { | |
String cid2 = cid; | |
try { | |
cid2 = java.net.URLDecoder.decode(cid, "UTF-8"); | |
} catch (Exception e) { | |
if (log.isDebugEnabled()) { | |
log.debug("getNewCID decoding " + cid + " as UTF-8 decoding error: " + e); | |
} | |
} | |
return cid2; | |
} | |
/** | |
* Read the bytes from the DataHandler | |
* | |
* @param dh | |
* @return byte[] | |
* @throws IOException | |
*/ | |
private byte[] convert(DataHandler dh) throws IOException { | |
if (log.isDebugEnabled()) { | |
log.debug("Reading byte[] from DataHandler " + dh); | |
} | |
InputStream is = dh.getInputStream(); | |
if (log.isDebugEnabled()) { | |
log.debug("DataHandler InputStream " + is); | |
} | |
ByteArrayOutputStream baos = new ByteArrayOutputStream(); | |
byte[] b = new byte[1024]; | |
int num = is.read(b); | |
if (log.isDebugEnabled()) { | |
if (num <= 0) { | |
log.debug("DataHandler InputStream contains no data. num=" + num); | |
} | |
} | |
while (num > 0) { | |
baos.write(b, 0, num); | |
num = is.read(b); | |
} | |
return baos.toByteArray(); | |
} | |
protected DataHandler getDataHandler(String cid) { | |
String blobcid = cid; | |
if (blobcid.startsWith("cid:")) { | |
blobcid = blobcid.substring(4); | |
} | |
// Get the attachment from the messagecontext using the blob cid | |
if (msgContext != null) { | |
DataHandler dh = msgContext.getAttachment(blobcid); | |
if (dh != null) { | |
JAXBAttachmentUnmarshallerMonitor.addBlobCID(blobcid); | |
} | |
return dh; | |
} | |
if (xmlStreamReader instanceof OMXMLStreamReader) { | |
DataHandler dh = | |
((OMXMLStreamReader) xmlStreamReader).getDataHandler(blobcid); | |
if (dh != null) { | |
JAXBAttachmentUnmarshallerMonitor.addBlobCID(blobcid); | |
} | |
return dh; | |
} | |
return null; | |
} | |
} |