/**
* @param string
* @return
* @throws NeedRedirectionException
* @throws IOException
*/
private Dataset getDataset(Dataset ds) throws IOException {
String iuid = ds.getString(Tags.SOPInstanceUID);
File file = ridSupport.getDICOMFile(iuid);
if (log.isDebugEnabled())
log.debug("DCM file for " + ds.getString(Tags.SOPInstanceUID) + ":" + file);
if (file == null) return null;
Dataset dsFile;
if (!ridSupport.isUseOrigFile()) {
FileDataSource dsrc = null;
try {
dsrc =
(FileDataSource)
ridSupport
.getMBeanServer()
.invoke(
ridSupport.getQueryRetrieveScpName(),
"getDatasourceOfInstance",
new Object[] {iuid},
new String[] {String.class.getName()});
} catch (Exception e) {
log.error("Failed to get updated DICOM file", e);
}
file = new File(file + ".dcm");
file.deleteOnExit();
OutputStream os = new BufferedOutputStream(new FileOutputStream(file));
dsrc.isWriteFile();
dsrc.writeTo(os, null);
os.close();
dsFile = loadDataset(file);
file.delete();
} else {
dsFile = loadDataset(file);
}
return dsFile;
}
/**
* @param ds
* @param outFile
* @return
* @throws IOException
*/
private RIDResponseObject handleSVG(Dataset ds, BaseDocument doc) throws IOException {
OutputStream out = doc.getOutputStream();
try {
DcmElement elem = ds.get(Tags.WaveformSeq);
WaveformGroup wfgrp =
new WaveformGroup(
ds.getString(Tags.SOPClassUID),
elem,
0,
ridSupport.getWaveformCorrection()); // TODO all groups
if (log.isDebugEnabled()) log.debug(wfgrp);
WaveformInfo wfInfo = new WaveformInfo(ds);
SVGCreator svgCreator = new SVGCreator(wfgrp, wfInfo, new Float(27.6f), new Float(20.3f));
svgCreator.toXML(out);
out.close();
return new RIDStreamResponseObjectImpl(
doc.getInputStream(), CONTENT_TYPE_SVGXML, HttpServletResponse.SC_OK, null);
} catch (Throwable t) {
if (out != null)
try {
out.close();
} catch (IOException e) {
}
log.error("Cant create SVG for Waveform!", t);
log.error("Waveform Dataset:");
log.error(ds);
return new RIDStreamResponseObjectImpl(
null,
RIDSupport.CONTENT_TYPE_HTML,
HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Error while creating waveform SVG! Reason:" + t.getMessage());
}
}
private RIDResponseObject handlePDF(Dataset ds, BaseDocument doc) throws IOException {
OutputStream out = doc.getOutputStream();
OutputStream tmpOut = null;
File tmpFile = null;
try {
tmpFile = File.createTempFile("fop_", null);
tmpFile.deleteOnExit();
tmpOut = new FileOutputStream(tmpFile);
DcmElement elem = ds.get(Tags.WaveformSeq);
WaveformGroup[] wfgrps = getWaveformGroups(elem, ds.getString(Tags.SOPClassUID));
WaveformInfo wfInfo = new WaveformInfo(ds);
FOPCreator fopCreator = new FOPCreator(wfgrps, wfInfo, new Float(28.6f), new Float(20.3f));
fopCreator.toXML(tmpOut);
tmpOut.close();
Fop fop = ridSupport.newFop(MimeConstants.MIME_PDF, out);
SAXTransformerFactory tf = (SAXTransformerFactory) TransformerFactory.newInstance();
Transformer t = tf.newTransformer();
t.transform(
new StreamSource(new FileInputStream(tmpFile)), new SAXResult(fop.getDefaultHandler()));
out.close();
tmpFile.delete();
InputStream in = doc.getInputStream();
return new RIDStreamResponseObjectImpl(
in, in.available(), RIDSupport.CONTENT_TYPE_PDF, HttpServletResponse.SC_OK, null);
} catch (Throwable t) {
try {
if (out != null) out.close();
if (tmpOut != null) tmpOut.close();
} catch (IOException e) {
}
if (tmpFile.exists()) tmpFile.delete();
log.error("Cant create PDF for Waveform!", t);
log.error("Waveform Dataset:");
log.error(ds);
return new RIDStreamResponseObjectImpl(
null,
RIDSupport.CONTENT_TYPE_HTML,
HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Error while creating waveform PDF! Reason:" + t.getMessage());
}
}
/**
* @param cuid
* @param elem
* @return
*/
private WaveformGroup[] getWaveformGroups(DcmElement elem, String cuid) {
float corr = ridSupport.getWaveformCorrection();
int nrOfWFGroups = elem.countItems();
if (nrOfWFGroups == 1)
return new WaveformGroup[] {new WaveformGroup(cuid, elem, 0, corr)}; // dont
// check
// the
// only
// one
ArrayList l = new ArrayList(nrOfWFGroups);
for (int i = 0; i < nrOfWFGroups; i++) {
try {
l.add(new WaveformGroup(cuid, elem, i, corr));
} catch (Exception x) {
log.warn("Item " + i + " in Waveform Sequence is not valid! Ignored!!");
}
}
return (WaveformGroup[]) l.toArray(new WaveformGroup[l.size()]);
}
/**
* @param reqObj
* @param ds
* @return
*/
public RIDResponseObject getECGDocument(RIDRequestObject reqObj, Dataset ds) {
String contentType = reqObj.getParam("preferredContentType");
if (contentType.equals(CONTENT_TYPE_SVGXML) || contentType.equals("image/svg")) {
contentType = CONTENT_TYPE_SVGXML;
if (ridSupport.checkContentType(reqObj, new String[] {CONTENT_TYPE_SVGXML}) == null) {
return new RIDStreamResponseObjectImpl(
null,
RIDSupport.CONTENT_TYPE_HTML,
HttpServletResponse.SC_BAD_REQUEST,
"Display actor doesnt accept preferred content type!");
}
} else if (contentType.equals(RIDSupport.CONTENT_TYPE_PDF)) {
if (ridSupport.checkContentType(reqObj, new String[] {RIDSupport.CONTENT_TYPE_PDF}) == null) {
return new RIDStreamResponseObjectImpl(
null,
RIDSupport.CONTENT_TYPE_HTML,
HttpServletResponse.SC_BAD_REQUEST,
"Display actor doesnt accept preferred content type!");
}
} else {
return new RIDStreamResponseObjectImpl(
null,
RIDSupport.CONTENT_TYPE_HTML,
HttpServletResponse.SC_NOT_ACCEPTABLE,
"preferredContentType '"
+ contentType
+ "' is not supported! Only 'application/pdf' and 'image/svg+xml' are supported !");
}
String docUID = reqObj.getParam("documentUID");
log.info("get ECG document! docUID:" + docUID);
BaseDocument doc = storage.getDocument(docUID, contentType);
try {
if (doc != null) {
return new RIDStreamResponseObjectImpl(
doc.getInputStream(), contentType, HttpServletResponse.SC_OK, null);
}
} catch (Exception x) {
log.error("Getting InputStream for RID Response of document " + docUID + " failed!", x);
}
try {
Dataset fullDS = getDataset(ds);
doc = storage.createDocument(docUID, contentType);
if (fullDS == null) {
return new RIDStreamResponseObjectImpl(
null,
RIDSupport.CONTENT_TYPE_HTML,
HttpServletResponse.SC_NOT_FOUND,
"Requested document not found::" + ds.getString(Tags.SOPClassUID));
} else {
if (contentType.equals(RIDSupport.CONTENT_TYPE_PDF)) {
return handlePDF(fullDS, doc);
} else {
return handleSVG(fullDS, doc);
}
}
} catch (Exception e) {
return new RIDStreamResponseObjectImpl(
null,
RIDSupport.CONTENT_TYPE_HTML,
HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Internal server error:" + e.getMessage());
}
}
