public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
if (isJettyMode() && !request.getContextPath().startsWith(CONTEXT_PATH)) {
return;
}
if (log.isDebug()) {
logDebug(BaseMessages.getString(PKG, "TransStatusServlet.Log.SniffStepRequested"));
}
String transName = request.getParameter("trans");
String id = request.getParameter("id");
String stepName = request.getParameter("step");
int copyNr = Const.toInt(request.getParameter("copynr"), 0);
final int nrLines = Const.toInt(request.getParameter("lines"), 0);
String type = Const.NVL(request.getParameter("type"), TYPE_OUTPUT);
boolean useXML = "Y".equalsIgnoreCase(request.getParameter("xml"));
response.setStatus(HttpServletResponse.SC_OK);
if (useXML) {
response.setContentType("text/xml");
response.setCharacterEncoding(Const.XML_ENCODING);
} else {
response.setContentType("text/html;charset=UTF-8");
}
PrintWriter out = response.getWriter();
// ID is optional...
//
Trans trans;
CarteObjectEntry entry;
if (Const.isEmpty(id)) {
// get the first transformation that matches...
//
entry = getTransformationMap().getFirstCarteObjectEntry(transName);
if (entry == null) {
trans = null;
} else {
id = entry.getId();
trans = getTransformationMap().getTransformation(entry);
}
} else {
// Take the ID into account!
//
entry = new CarteObjectEntry(transName, id);
trans = getTransformationMap().getTransformation(entry);
}
Encoder encoder = ESAPI.encoder();
if (trans != null) {
// Find the step to look at...
//
StepInterface step = null;
List<StepInterface> stepInterfaces = trans.findBaseSteps(stepName);
for (int i = 0; i < stepInterfaces.size(); i++) {
StepInterface look = stepInterfaces.get(i);
if (look.getCopy() == copyNr) {
step = look;
}
}
if (step != null) {
// Add a listener to the transformation step...
//
final boolean read = type.equalsIgnoreCase(TYPE_INPUT);
final boolean written = type.equalsIgnoreCase(TYPE_OUTPUT) || !read;
final MetaAndData metaData = new MetaAndData();
metaData.bufferRowMeta = null;
metaData.bufferRowData = new ArrayList<Object[]>();
RowListener rowListener =
new RowListener() {
public void rowReadEvent(RowMetaInterface rowMeta, Object[] row)
throws KettleStepException {
if (read && metaData.bufferRowData.size() < nrLines) {
metaData.bufferRowMeta = rowMeta;
metaData.bufferRowData.add(row);
}
}
public void rowWrittenEvent(RowMetaInterface rowMeta, Object[] row)
throws KettleStepException {
if (written && metaData.bufferRowData.size() < nrLines) {
metaData.bufferRowMeta = rowMeta;
metaData.bufferRowData.add(row);
}
}
public void errorRowWrittenEvent(RowMetaInterface rowMeta, Object[] row)
throws KettleStepException {}
};
step.addRowListener(rowListener);
// Wait until we have enough rows...
//
while (metaData.bufferRowData.size() < nrLines
&& step.isRunning()
&& !trans.isFinished()
&& !trans.isStopped()) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// Ignore
//
break;
}
}
// Remove the row listener
//
step.removeRowListener(rowListener);
// Pass along the rows of data...
//
if (useXML) {
// Send the result back as XML
//
response.setContentType("text/xml");
response.setCharacterEncoding(Const.XML_ENCODING);
out.print(XMLHandler.getXMLHeader(Const.XML_ENCODING));
out.println(XMLHandler.openTag(XML_TAG));
if (metaData.bufferRowMeta != null) {
// Row Meta data
//
out.println(metaData.bufferRowMeta.getMetaXML());
// Nr of lines
//
out.println(XMLHandler.addTagValue("nr_rows", metaData.bufferRowData.size()));
// Rows of data
//
for (int i = 0; i < metaData.bufferRowData.size(); i++) {
Object[] rowData = metaData.bufferRowData.get(i);
out.println(metaData.bufferRowMeta.getDataXML(rowData));
}
}
out.println(XMLHandler.closeTag(XML_TAG));
} else {
response.setContentType("text/html;charset=UTF-8");
out.println("<HTML>");
out.println("<HEAD>");
out.println(
"<TITLE>"
+ BaseMessages.getString(PKG, "SniffStepServlet.SniffResults")
+ "</TITLE>");
out.println(
"<META http-equiv=\"Refresh\" content=\"10;url="
+ convertContextPath(CONTEXT_PATH)
+ "?name="
+ URLEncoder.encode(transName, "UTF-8")
+ "&id="
+ URLEncoder.encode(id, "UTF-8")
+ "\">");
out.println("<META http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">");
out.println("</HEAD>");
out.println("<BODY>");
out.println(
"<H1>"
+ encoder.encodeForHTML(
BaseMessages.getString(PKG, "SniffStepServlet.SniffResultsForStep", stepName))
+ "</H1>");
try {
out.println("<table border=\"1\">");
if (metaData.bufferRowMeta != null) {
// Print a header row containing all the field names...
//
out.print("<tr><th>#</th>");
for (ValueMetaInterface valueMeta : metaData.bufferRowMeta.getValueMetaList()) {
out.print("<th>" + valueMeta.getName() + "</th>");
}
out.println("</tr>");
// Now output the data rows...
//
for (int r = 0; r < metaData.bufferRowData.size(); r++) {
Object[] rowData = metaData.bufferRowData.get(r);
out.print("<tr>");
out.println("<td>" + (r + 1) + "</td>");
for (int v = 0; v < metaData.bufferRowMeta.size(); v++) {
ValueMetaInterface valueMeta = metaData.bufferRowMeta.getValueMeta(v);
Object valueData = rowData[v];
out.println("<td>" + valueMeta.getString(valueData) + "</td>");
}
out.println("</tr>");
}
}
out.println("</table>");
out.println("<p>");
} catch (Exception ex) {
out.println("<p>");
out.println("<pre>");
out.println(encoder.encodeForHTML(Const.getStackTracker(ex)));
out.println("</pre>");
}
out.println("<p>");
out.println("</BODY>");
out.println("</HTML>");
}
} else {
if (useXML) {
out.println(
new WebResult(
WebResult.STRING_ERROR,
BaseMessages.getString(
PKG, "SniffStepServlet.Log.CoundNotFindSpecStep", stepName))
.getXML());
} else {
out.println(
"<H1>"
+ encoder.encodeForHTML(
BaseMessages.getString(
PKG, "SniffStepServlet.Log.CoundNotFindSpecStep", stepName))
+ "</H1>");
out.println(
"<a href=\""
+ convertContextPath(GetStatusServlet.CONTEXT_PATH)
+ "\">"
+ BaseMessages.getString(PKG, "TransStatusServlet.BackToStatusPage")
+ "</a><p>");
}
}
} else {
if (useXML) {
out.println(
new WebResult(
WebResult.STRING_ERROR,
BaseMessages.getString(
PKG, "SniffStepServlet.Log.CoundNotFindSpecTrans", transName))
.getXML());
} else {
out.println(
"<H1>"
+ encoder.encodeForHTML(
BaseMessages.getString(
PKG, "SniffStepServlet.Log.CoundNotFindTrans", transName))
+ "</H1>");
out.println(
"<a href=\""
+ convertContextPath(GetStatusServlet.CONTEXT_PATH)
+ "\">"
+ BaseMessages.getString(PKG, "TransStatusServlet.BackToStatusPage")
+ "</a><p>");
}
}
}
