/**
* Makes a request to the IRIS service for a particular station's channels.
*
* <p>The request will look something like this:
* http://www.iris.edu/ws/station/query?net=S&station=AUDAR&level=chan
*
* @param serviceUrl The IRIS web service URL.
* @param networkCode The network code that you're interested in.
* @param stationCode The code of the station to interrogate.
* @return a JSONResponseMAV containing the start and end dates of the site and a collection of
* channel codes.
*/
@RequestMapping("/getStationChannels.do")
public ModelAndView getStationChannels(
@RequestParam("serviceUrl") String serviceUrl,
@RequestParam("networkCode") String networkCode,
@RequestParam("stationCode") String stationCode) {
serviceUrl = ensureTrailingForwardslash(serviceUrl);
try {
Document irisDoc =
getDocumentFromURL(
serviceUrl
+ "fdsnws/station/1/query?net="
+ networkCode
+ "&sta="
+ stationCode
+ "&level=chan");
NodeList channels = irisDoc.getDocumentElement().getElementsByTagName("Channel");
String[] channelCodes = new String[channels.getLength()];
// For each station:
for (int i = 0; i < channels.getLength(); i++) {
Node channel = channels.item(i);
channelCodes[i] = channel.getAttributes().getNamedItem("code").getTextContent();
}
NamespaceContext nc = getIrisNamespace();
String startDate =
DOMUtil.compileXPathExpr(
"//default:Station[@code='" + stationCode + "']/default:Channel/@startDate", nc)
.evaluate(irisDoc, XPathConstants.STRING)
.toString();
String endDate =
DOMUtil.compileXPathExpr(
"//default:Station[@code='" + stationCode + "']/default:Channel/@endDate", nc)
.evaluate(irisDoc, XPathConstants.STRING)
.toString();
ModelMap channelInfo = new ModelMap();
channelInfo.put("start_date", startDate);
channelInfo.put("end_date", endDate);
channelInfo.put("channel_codes", channelCodes);
return generateJSONResponseMAV(true, channelInfo, "OK");
} catch (Exception e) {
return generateJSONResponseMAV(false, e.getMessage(), "Failed.");
}
}
/**
* Creates a new spatial domain
*
* @param envelope
* @param rectifiedGrid
* @throws XPathExpressionException
*/
public SpatialDomain(Node node, WCSNamespaceContext nc) throws XPathExpressionException {
NodeList envelopeNodes =
(NodeList)
DOMUtil.compileXPathExpr("wcs:Envelope | gml:Envelope | wcs:EnvelopeWithTimePeriod", nc)
.evaluate(node, XPathConstants.NODESET);
this.envelopes = new SimpleEnvelope[envelopeNodes.getLength()];
for (int i = 0; i < envelopeNodes.getLength(); i++) {
this.envelopes[i] = new SimpleEnvelope(envelopeNodes.item(i), nc);
}
Node gridNode =
(Node)
DOMUtil.compileXPathExpr("gml:RectifiedGrid", nc).evaluate(node, XPathConstants.NODE);
if (gridNode != null) {
this.rectifiedGrid = new RectifiedGrid(gridNode);
}
}
/**
* Makes a request to the IRIS service specified, for all the stations on the network code
* provided.
*
* <p>The response is converted to some KML points to be rendered on the map.
*
* <p>The request will look something like this:
* http://service.iris.edu/fdsnws/station/1/query?net=S
*
* @param serviceUrl The IRIS web service URL.
* @param networkCode The network code that you're interested in.
* @return a JSONResponseMAV containing KML points of each station.
*/
@RequestMapping("/getIRISStations.do")
public ModelAndView getIRISStations(
@RequestParam("serviceUrl") String serviceUrl,
@RequestParam("networkCode") String networkCode) {
serviceUrl = ensureTrailingForwardslash(serviceUrl);
try {
Document irisDoc =
getDocumentFromURL(serviceUrl + "fdsnws/station/1/query?net=" + networkCode);
// TODO VT: As part of the review for AGOS-15 , we should be following the same architecture
// as the rest of portal and
// create a xslt file to do the transformation from xml to kml
NodeList stations = irisDoc.getDocumentElement().getElementsByTagName("Station");
NamespaceContext nc = getIrisNamespace();
XPathExpression nameExpression =
DOMUtil.compileXPathExpr("default:Site/default:Name/text()", nc);
XPathExpression latExpression = DOMUtil.compileXPathExpr("default:Latitude/text()", nc);
XPathExpression lonExpression = DOMUtil.compileXPathExpr("default:Longitude/text()", nc);
StringBuilder kml =
new StringBuilder(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?><kml xmlns=\"http://www.opengis.net/kml/2.2\"><Document><name>GML Links to KML</name><description><![CDATA[GeoSciML data converted to KML]]></description>");
// For each station:
for (int i = 0; i < stations.getLength(); i++) {
Node station = stations.item(i);
Node staCode = station.getAttributes().getNamedItem("code");
kml.append(
String.format(
"<Placemark><name>%s</name><description><![CDATA[GENERIC_PARSER:%s]]></description>"
+ "<MultiGeometry><Point><coordinates>%s,%s,0</coordinates></Point></MultiGeometry></Placemark>",
nameExpression.evaluate(station, XPathConstants.STRING),
staCode.getTextContent(),
lonExpression.evaluate(station, XPathConstants.STRING),
latExpression.evaluate(station, XPathConstants.STRING)));
}
kml.append("</Document></kml>");
return generateJSONResponseMAV(true, "gml", kml.toString(), null);
} catch (Exception e) {
return generateJSONResponseMAV(false, e.getMessage(), "Failed.");
}
}
/**
* This is a legacy test for the older vocabularyServiceResponse.xml
*
* <p>It tests our concepts still return EVEN if we don't define top level concepts
*/
@Test
public void testGetConcepts() throws Exception {
String responseXml =
ResourceUtil.loadResourceAsString(
"org/auscope/portal/core/test/responses/sissvoc/vocabularyServiceResponse.xml");
Document responseDoc = DOMUtil.buildDomFromString(responseXml);
Node rdfNode =
(Node)
DOMUtil.compileXPathExpr("rdf:RDF", new VocabNamespaceContext())
.evaluate(responseDoc, XPathConstants.NODE);
ConceptFactory cf = new ConceptFactory();
Concept[] actualConcepts = cf.parseFromRDF(rdfNode);
Assert.assertEquals("There are 27 concepts", 27, actualConcepts.length);
// Must contain: Siltstone - concrete aggregate
boolean found = false;
for (Concept concept : actualConcepts) {
if (concept.getPreferredLabel().equals("Siltstone - concrete aggregate")) {
found = true;
break;
}
}
Assert.assertTrue("Must contain: Siltstone - concrete aggregate", found);
// Must contain: Gneiss - crusher dust
found = false;
for (Concept concept : actualConcepts) {
if (concept.getPreferredLabel().equals("Gneiss - crusher dust")) {
found = true;
break;
}
}
Assert.assertTrue("Must contain: Gneiss - crusher dust", found);
}
/**
* Makes a DescribeCoverage request, returns the response as an array of DescribeCoverageRecords
*
* @param serviceUrl The WCS endpoint to query
* @param coverageName The coverage name to describe
* @throws URISyntaxException
*/
public DescribeCoverageRecord[] describeCoverage(String serviceUrl, String coverageName)
throws PortalServiceException {
HttpRequestBase method = null;
try {
method = methodMaker.describeCoverageMethod(serviceUrl, coverageName);
try (InputStream response = serviceCaller.getMethodResponseAsStream(method)) {
Document responseDoc = DOMUtil.buildDomFromStream(response);
OWSExceptionParser.checkForExceptionResponse(responseDoc);
return DescribeCoverageRecord.parseRecords(responseDoc);
}
} catch (Exception ex) {
throw new PortalServiceException(method, "Error while making GetCoverage request", ex);
} finally {
if (method != null) {
method.releaseConnection();
}
}
}
/** Runs the factory through a standard SISSVoc response XML */
@Test
public void testSISSVocRDF() throws Exception {
// Build our expectation
Concept concept1 = new Concept("urn:concept:1");
Concept concept2 = new Concept("urn:concept:2");
Concept concept3 = new Concept("urn:concept:3");
Concept concept4 = new Concept("urn:concept:4");
NamedIndividual ni1 = new NamedIndividual("urn:ni:1");
NamedIndividual ni2 = new NamedIndividual("urn:ni:2");
NamedIndividual ni3 = new NamedIndividual("urn:ni:3");
concept1.setNarrower(new Concept[] {concept2, concept3, ni2});
concept1.setLabel("LabelConcept1");
concept1.setPreferredLabel("PrefLabelConcept1");
concept2.setBroader(new Concept[] {concept1});
concept2.setRelated(new Concept[] {concept3});
concept2.setLabel("LabelConcept2");
concept2.setPreferredLabel("PrefLabelConcept2");
concept2.setDefinition("DefinitionConcept2");
concept3.setBroader(new Concept[] {concept1});
concept3.setRelated(new Concept[] {concept2});
concept3.setNarrower(new Concept[] {ni1});
concept3.setLabel("LabelConcept3");
concept3.setPreferredLabel("PrefLabelConcept3");
concept4.setNarrower(new Concept[] {ni3});
concept4.setLabel("LabelConcept4");
concept4.setPreferredLabel("PrefLabelConcept4");
concept4.setDefinition("DefinitionConcept4");
ni1.setBroader(new Concept[] {concept3});
ni1.setLabel("LabelNamedIndividual1");
ni1.setPreferredLabel("PrefLabelNamedIndividual1");
ni2.setBroader(new Concept[] {concept1});
ni2.setLabel("LabelNamedIndividual2");
ni2.setPreferredLabel("PrefLabelNamedIndividual2");
ni3.setBroader(new Concept[] {concept4});
ni3.setLabel("LabelNamedIndividual3");
ni3.setPreferredLabel("PrefLabelNamedIndividual3");
Concept[] expectation = new Concept[] {concept1, concept4};
// Build our actual list
String responseXml =
ResourceUtil.loadResourceAsString(
"org/auscope/portal/core/test/responses/sissvoc/SISSVocResponse.xml");
Document responseDoc = DOMUtil.buildDomFromString(responseXml);
Node rdfNode =
(Node)
DOMUtil.compileXPathExpr("rdf:RDF", new VocabNamespaceContext())
.evaluate(responseDoc, XPathConstants.NODE);
ConceptFactory cf = new ConceptFactory();
Concept[] actualConcepts = cf.parseFromRDF(rdfNode);
Assert.assertNotNull(actualConcepts);
assertSameConcept(expectation, actualConcepts, new ArrayList<String>());
}
/**
* Downloads a resource from a URL and returns it as Document object.
*
* @param queryUrl The URL of the resource you require.
* @return The resource at the URL requested, converted to a Document object.
* @throws IOException
* @throws ParserConfigurationException
* @throws SAXException
*/
private Document getDocumentFromURL(String queryUrl)
throws IOException, ParserConfigurationException, SAXException {
String irisResponse = getIrisResponseFromQuery(queryUrl);
return DOMUtil.buildDomFromString(irisResponse);
}
