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/*
* Copyright (C) 2012-2019 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* If the program is linked with libraries which are licensed under one of
* the following licenses, the combination of the program with the linked
* library is not considered a "derivative work" of the program:
*
* - Apache License, version 2.0
* - Apache Software License, version 1.0
* - GNU Lesser General Public License, version 3
* - Mozilla Public License, versions 1.0, 1.1 and 2.0
* - Common Development and Distribution License (CDDL), version 1.0
*
* Therefore the distribution of the program linked with libraries licensed
* under the aforementioned licenses, is permitted by the copyright holders
* if the distribution is compliant with both the GNU General Public
* License version 2 and the aforementioned licenses.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*/
package org.n52.sos.ds;
import static java.util.stream.Collectors.toCollection;
import static java.util.stream.Collectors.toMap;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Objects;
import java.util.Set;
import java.util.TreeSet;
import java.util.function.Function;
import java.util.function.Predicate;
import javax.xml.namespace.QName;
import org.n52.shetland.ogc.gml.ReferenceType;
import org.n52.shetland.ogc.ows.exception.OwsExceptionReport;
import org.n52.shetland.ogc.ows.extension.CapabilitiesExtension;
import org.n52.shetland.ogc.ows.service.GetCapabilitiesRequest;
import org.n52.shetland.ogc.sos.Sos1Constants;
import org.n52.shetland.ogc.sos.Sos2Constants;
import org.n52.shetland.ogc.sos.SosConstants;
import org.n52.shetland.ogc.sos.SosObservationOffering;
import org.n52.shetland.ogc.sos.SosOffering;
import org.n52.shetland.ogc.sos.extension.SosObservationOfferingExtension;
import org.n52.shetland.ogc.sos.ro.RelatedOfferingConstants;
import org.n52.shetland.ogc.sos.ro.RelatedOfferings;
import org.n52.shetland.util.CollectionHelper;
import org.n52.shetland.util.OMHelper;
import org.n52.shetland.util.ReferencedEnvelope;
import org.n52.sos.cache.SosContentCache;
import org.n52.sos.util.I18NHelper;
/**
* Implementation of {@link AbstractSosGetCapabilitiesHandler} that only relies
* on the {@link SosContentCache}.
*
* @author Christian Autermann
*/
public class CacheBasedSosGetCapabilitesHandler extends AbstractSosGetCapabilitiesHandler implements I18NHelper {
/**
* Get the contents for SOS 1.0.0 capabilities
*
* @param sectionSpecificContentObject
* Requested service version
*
* @return Offerings for contents
*
*
* @throws OwsExceptionReport
* * If an error occurs
*/
@Override
protected List getContentsForSosV1(
SectionSpecificContentObject sectionSpecificContentObject) throws OwsExceptionReport {
String version = sectionSpecificContentObject.getGetCapabilitiesResponse().getVersion();
SosContentCache cache = getCache();
Collection offerings = cache.getOfferings();
List sosOfferings = new ArrayList<>(offerings.size());
for (String offering : offerings) {
Collection procedures = getProceduresForOffering(offering, version);
ReferencedEnvelope envelopeForOffering = cache.getEnvelopeForOffering(offering);
Set featuresForoffering = getFOI4offering(offering);
Collection responseFormats = getResponseFormatRepository()
.getSupportedResponseFormats(SosConstants.SOS, Sos1Constants.SERVICEVERSION);
if (checkOfferingValues(envelopeForOffering, featuresForoffering, responseFormats)) {
SosObservationOffering sosObservationOffering = new SosObservationOffering();
// insert observationTypes
sosObservationOffering.setObservationTypes(getObservationTypes(offering));
// only if fois are contained for the offering set the values of
// the envelope
sosObservationOffering.setObservedArea(cache.getEnvelopeForOffering(offering));
// TODO: add intended application
// xb_oo.addIntendedApplication("");
// add offering name
addSosOfferingToObservationOffering(offering, sosObservationOffering,
sectionSpecificContentObject.getGetCapabilitiesRequest());
// set up phenomena
sosObservationOffering.setObservableProperties(cache.getObservablePropertiesForOffering(offering));
sosObservationOffering.setCompositePhenomena(cache.getCompositePhenomenonsForOffering(offering));
Map> phens4CompPhens = cache.getCompositePhenomenonsForOffering(offering).stream()
.collect(toMap(Function.identity(), cache::getObservablePropertiesForCompositePhenomenon));
sosObservationOffering.setPhens4CompPhens(phens4CompPhens);
// set up time
setUpTimeForOffering(offering, sosObservationOffering);
// add feature of interests
if (getProfileHandler().getActiveProfile().isListFeatureOfInterestsInOfferings()) {
sosObservationOffering.setFeatureOfInterest(getFOI4offering(offering));
}
// set procedures
sosObservationOffering.setProcedures(procedures);
// insert result models
Collection resultModels =
OMHelper.getQNamesForResultModel(cache.getObservationTypesForOffering(offering));
sosObservationOffering.setResultModels(resultModels);
// set response format
sosObservationOffering.setResponseFormats(responseFormats);
// set response Mode
sosObservationOffering.setResponseModes(SosConstants.RESPONSE_MODES);
sosOfferings.add(sosObservationOffering);
}
}
return sosOfferings;
}
/**
* Get the contents for SOS 2.0 capabilities
*
* @param sectionSpecificContentObject
* Requested service version
*
* @return Offerings for contents
*
*
* @throws OwsExceptionReport
* * If an error occurs
*/
@Override
protected List getContentsForSosV2(
SectionSpecificContentObject sectionSpecificContentObject) throws OwsExceptionReport {
String version = Sos2Constants.SERVICEVERSION;
Collection offerings = getCache().getOfferings();
List sosOfferings = new ArrayList<>(offerings.size());
Map> extensions =
getCapabilitiesExtensionService().getActiveOfferingExtensions();
if (CollectionHelper.isEmpty(offerings)) {
// Set empty offering to add empty Contents section to Capabilities
sosOfferings.add(new SosObservationOffering());
} else {
// TODO Parent Offering!!!
if (checkListOnlyParentOfferings()) {
sosOfferings.addAll(
createAndGetParentOfferings(offerings, version, sectionSpecificContentObject, extensions));
} else {
for (String offering : offerings) {
Collection observationTypes = getObservationTypes(offering);
if (observationTypes != null && !observationTypes.isEmpty()) {
// FIXME why a loop? We are in SOS 2.0 context ->
// offering 1
// <-> 1 procedure!
for (String procedure : getProceduresForOffering(offering, version)) {
SosObservationOffering sosObservationOffering = new SosObservationOffering();
// insert observationTypes
sosObservationOffering.setObservationTypes(observationTypes);
sosObservationOffering.setObservedArea(getObservedArea(offering));
sosObservationOffering.setProcedures(Collections.singletonList(procedure));
GetCapabilitiesRequest request = sectionSpecificContentObject.getGetCapabilitiesRequest();
// TODO: add intended application
// add offering to observation offering
addSosOfferingToObservationOffering(offering, sosObservationOffering, request);
// add offering extension
if (getOfferingExtensionRepository().hasOfferingExtensionProviderFor(request)) {
getOfferingExtensionRepository().getOfferingExtensionProvider(request).stream()
.filter(Objects::nonNull)
.filter(provider -> provider.hasExtendedOfferingFor(offering))
.map(provider -> provider.getOfferingExtensions(offering))
.forEach(sosObservationOffering::addExtensions);
}
if (extensions.containsKey(sosObservationOffering.getOffering().getIdentifier())) {
extensions.get(sosObservationOffering.getOffering().getIdentifier()).stream()
.map(CapabilitiesExtension::new).forEach(sosObservationOffering::addExtension);
}
setUpPhenomenaForOffering(offering, procedure, sosObservationOffering);
setUpTimeForOffering(offering, sosObservationOffering);
setUpRelatedFeaturesForOffering(offering, version, sosObservationOffering);
setUpFeatureOfInterestTypesForOffering(offering, sosObservationOffering);
setUpProcedureDescriptionFormatForOffering(sosObservationOffering, version);
setUpResponseFormatForOffering(sosObservationOffering, version);
sosOfferings.add(sosObservationOffering);
}
}
}
}
}
return sosOfferings;
}
private Collection createAndGetParentOfferings(Collection offerings,
String version, SectionSpecificContentObject sectionSpecificContentObject,
Map> extensions) throws OwsExceptionReport {
Map> parentChilds =
offerings.stream().filter(offering -> !getCache().hasParentOfferings(offering)).collect(
toMap(Function.identity(), offering -> getCache().getChildOfferings(offering, true, false)));
List sosOfferings = new ArrayList<>(parentChilds.size());
for (Entry> entry : parentChilds.entrySet()) {
Collection observationTypes = getObservationTypes(entry.getValue());
if (CollectionHelper.isNotEmpty(observationTypes)) {
Collection procedures = getProceduresForOffering(entry, version);
if (CollectionHelper.isNotEmpty(procedures)) {
Set allOfferings = new HashSet<>(entry.getValue().size() + 1);
allOfferings.addAll(entry.getValue());
allOfferings.add(entry.getKey());
SosObservationOffering sosObservationOffering = new SosObservationOffering();
sosObservationOffering.setObservationTypes(observationTypes);
sosObservationOffering.setObservedArea(getObservedArea(entry.getValue()));
sosObservationOffering.setProcedures(procedures);
// TODO: add intended application
// add offering to observation offering
addSosOfferingToObservationOffering(entry.getKey(), sosObservationOffering,
sectionSpecificContentObject.getGetCapabilitiesRequest());
// add offering extension
if (getOfferingExtensionRepository().hasOfferingExtensionProviderFor(
sectionSpecificContentObject.getGetCapabilitiesRequest())) {
getOfferingExtensionRepository()
.getOfferingExtensionProvider(sectionSpecificContentObject.getGetCapabilitiesRequest())
.stream().filter(Objects::nonNull)
.filter(provider -> provider.hasExtendedOfferingFor(entry.getKey()))
.map(provider -> provider.getOfferingExtensions(entry.getKey()))
.forEach(sosObservationOffering::addExtensions);
}
if (extensions.containsKey(sosObservationOffering.getOffering().getIdentifier())) {
extensions.get(sosObservationOffering.getOffering().getIdentifier()).stream()
.map(offeringExtension -> new CapabilitiesExtension<>().setValue(offeringExtension))
.forEach(sosObservationOffering::addExtension);
}
// add sub-level offerings
if (!entry.getValue().isEmpty()) {
RelatedOfferings relatedOfferings = new RelatedOfferings();
String gdaURL = getGetDataAvailabilityUrl();
gdaURL = addParameter(gdaURL, "responseFormat", "http://www.opengis.net/sosgda/2.0");
for (String offering : entry.getValue()) {
relatedOfferings.addValue(new ReferenceType(RelatedOfferingConstants.ROLE),
new ReferenceType(
addParameter(new StringBuilder(gdaURL).toString(), "offering", offering),
offering));
}
sosObservationOffering.addExtension(relatedOfferings);
}
setUpPhenomenaForOffering(allOfferings, procedures.iterator().next(), sosObservationOffering);
setUpTimeForOffering(allOfferings, sosObservationOffering);
setUpRelatedFeaturesForOffering(allOfferings, version, sosObservationOffering);
setUpFeatureOfInterestTypesForOffering(allOfferings, sosObservationOffering);
setUpProcedureDescriptionFormatForOffering(sosObservationOffering, version);
setUpResponseFormatForOffering(sosObservationOffering, version);
sosOfferings.add(sosObservationOffering);
}
}
}
return sosOfferings;
}
private void addSosOfferingToObservationOffering(String offering, SosObservationOffering sosObservationOffering,
GetCapabilitiesRequest request) throws OwsExceptionReport {
SosOffering sosOffering = new SosOffering(offering, false);
sosObservationOffering.setOffering(sosOffering);
SosContentCache cache = getCache();
Locale requestedLocale = getRequestedLocale(request);
Locale defaultLocale = getDefaultLanguage();
// add offering name
addOfferingNames(cache, sosOffering, requestedLocale, defaultLocale, isShowAllLanguages());
// add offering description
addOfferingDescription(sosOffering, requestedLocale, defaultLocale, cache);
}
private Collection getProceduresForOffering(Entry> entry, String version)
throws OwsExceptionReport {
Collection procedures = new HashSet<>();
for (String offering : entry.getValue()) {
procedures.addAll(getProceduresForOffering(offering, version));
}
procedures.addAll(getProceduresForOffering(entry.getKey(), version));
return procedures;
}
protected Collection getObservationTypes(Set offerings) {
Set observationTypes = offerings.stream().map(getCache()::getObservationTypesForOffering)
.flatMap(Set::stream).filter(Predicate.isEqual(SosConstants.NOT_DEFINED).negate())
.collect(toCollection(TreeSet::new));
if (!observationTypes.isEmpty()) {
return observationTypes;
}
return offerings.stream().map(getCache()::getAllObservationTypesForOffering).flatMap(Set::stream)
.filter(Predicate.isEqual(SosConstants.NOT_DEFINED).negate()).collect(toCollection(TreeSet::new));
}
private ReferencedEnvelope getObservedArea(Set offerings) throws OwsExceptionReport {
ReferencedEnvelope envelope = new ReferencedEnvelope();
for (String offering : offerings) {
envelope.expandToInclude(getObservedArea(offering));
}
return envelope;
}
}
