public boolean checkWPSProcess(Document document) throws XPathExpressionException, IOException {
ProcessStatus procStat = new ProcessStatus(document);
if (procStat.isSuccess()) {
return true;
} else if (procStat.isFailed()) {
throw new IOException("Process failed");
}
return false;
}
/**
* @param alg Algorithm to run
* @param wpsRequest XML representing WPS request
* @param uuid UUID for output
* @param metaObj RunMetadata associated with user
* @return Web Accessible File with process results
* @throws IOException
* @throws ParserConfigurationException
* @throws SAXException
* @throws XPathExpressionException
* @throws InterruptedException
*/
private String runNamedAlgorithm(String alg, String wpsRequest, UUID uuid, RunMetadata metaObj)
throws IOException, ParserConfigurationException, SAXException, XPathExpressionException,
InterruptedException {
// String wpsRequest = WPSImpl.createNahatStatsRequest(sosEndpoint, info.stations,
// info.properties);
String wpsResponse = postToWPS(props.getProperty("watersmart.wps.url"), wpsRequest);
log.debug(wpsResponse);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
Document wpsResponseDoc =
factory.newDocumentBuilder().parse(new ByteArrayInputStream(wpsResponse.getBytes()));
ProcessStatus procStat = new ProcessStatus(wpsResponseDoc);
String wpsCheckPoint = procStat.getStatusLocation();
log.debug(wpsCheckPoint);
String contextPath = props.getProperty("watersmart.external.mapping.url");
InputStream is = null;
InputStream resultIs = null;
try {
boolean completed = false;
Document document = null;
int checks = 0;
while (!completed) {
checks++;
// TODO-
// http://stackoverflow.com/questions/3535754/netbeans-java-new-hint-thread-sleep-called-in-loop
Thread.sleep(CHECK_WAIT);
log.debug("Checking: " + checks);
is = HTTPUtils.sendPacket(new URL(wpsCheckPoint), "GET");
document = CheckProcessCompletion.parseDocument(is);
completed = checkWPSProcess(document);
if (checks == CHECKS_UNTIL_NOTIFY) {
sendMaybeEmail(metaObj.getEmail());
}
if (checks > CHECKS_UNTIL_FAIL) {
throw new IOException("R Statistics never returned");
}
}
ProcessStatus resultStatus = new ProcessStatus(document);
String outputReference = resultStatus.getOutputReference();
resultIs = HTTPUtils.sendPacket(new URL(outputReference), "GET");
String resultStr = IOUtils.toString(resultIs, "UTF-8");
// copy results to persistant location // switch to completed document above
log.debug(resultStr);
File destinationDir =
new File(
props.getProperty("watersmart.file.location")
+ props.getProperty("watersmart.file.location.wps.repository")
+ File.separatorChar
+ uuid);
if (!destinationDir.exists()) {
FileUtils.forceMkdir(destinationDir);
}
String filename =
metaObj.getTypeString()
+ "-"
+ metaObj.getScenario()
+ "-"
+ metaObj.getModelVersion()
+ "."
+ metaObj.getRunIdent()
+ "-"
+ alg
+ ".txt";
File destinationFile =
new File(destinationDir.getCanonicalPath() + File.separatorChar + filename);
FileUtils.write(destinationFile, resultStr, "UTF-8");
String destinationFileName = destinationFile.getName();
String webAccessibleFile =
contextPath
+ props.getProperty("watersmart.file.location.wps.repository")
+ "/"
+ uuid
+ "/"
+ destinationFileName;
return webAccessibleFile;
} finally {
IOUtils.closeQuietly(is);
IOUtils.closeQuietly(resultIs);
}
}