Java tutorial
/* Copyright (c) 2001 - 2013 OpenPlans - www.openplans.org. All rights reserved. * This code is licensed under the GPL 2.0 license, available at the root * application directory. */ package org.geoserver.wps; import java.util.Collections; import java.util.Comparator; import java.util.HashSet; import java.util.List; import java.util.Set; import java.util.logging.Level; import java.util.logging.Logger; import net.opengis.ows11.KeywordsType; import net.opengis.ows11.OperationType; import net.opengis.ows11.OperationsMetadataType; import net.opengis.ows11.Ows11Factory; import net.opengis.ows11.ResponsiblePartySubsetType; import net.opengis.ows11.ServiceIdentificationType; import net.opengis.ows11.ServiceProviderType; import net.opengis.wps10.DefaultType2; import net.opengis.wps10.GetCapabilitiesType; import net.opengis.wps10.LanguagesType; import net.opengis.wps10.LanguagesType1; import net.opengis.wps10.ProcessBriefType; import net.opengis.wps10.ProcessOfferingsType; import net.opengis.wps10.WPSCapabilitiesType; import net.opengis.wps10.Wps10Factory; import org.eclipse.emf.common.util.ECollections; import org.geoserver.config.SettingsInfo; import org.geoserver.ows.Ows11Util; import org.geoserver.ows.util.RequestUtils; import org.geoserver.wps.ppio.ProcessParameterIO; import org.geoserver.wps.process.GeoServerProcessors; import org.geotools.data.Parameter; import org.geotools.process.ProcessFactory; import org.geotools.process.Processors; import org.geotools.util.logging.Logging; import org.opengis.feature.type.Name; import org.springframework.context.ApplicationContext; /** * @author Lucas Reed, Refractions Research Inc */ public class GetCapabilities { public WPSInfo wps; ApplicationContext context; static final Logger LOGGER = Logging.getLogger(GetCapabilities.class); public GetCapabilities(WPSInfo wps, ApplicationContext context) { this.wps = wps; this.context = context; } public WPSCapabilitiesType run(GetCapabilitiesType request) throws WPSException { // do the version negotiation dance List<String> provided = Collections.singletonList("1.0.0"); List<String> accepted = null; if (request.getAcceptVersions() != null) accepted = request.getAcceptVersions().getVersion(); String version = RequestUtils.getVersionOws11(provided, accepted); if (!"1.0.0".equals(version)) { throw new WPSException("Could not understand version:" + version); } // TODO: add update sequence negotiation // encode the response Wps10Factory wpsf = Wps10Factory.eINSTANCE; Ows11Factory owsf = Ows11Factory.eINSTANCE; WPSCapabilitiesType caps = wpsf.createWPSCapabilitiesType(); caps.setVersion("1.0.0"); // TODO: make configurable caps.setLang("en"); // ServiceIdentification ServiceIdentificationType si = owsf.createServiceIdentificationType(); caps.setServiceIdentification(si); si.getTitle().add(Ows11Util.languageString(wps.getTitle())); si.getAbstract().add(Ows11Util.languageString(wps.getAbstract())); KeywordsType kw = Ows11Util.keywords(wps.keywordValues()); ; if (kw != null) { si.getKeywords().add(kw); } si.setServiceType(Ows11Util.code("WPS")); si.getServiceTypeVersion().add("1.0.0"); si.setFees(wps.getFees()); if (wps.getAccessConstraints() != null) { si.getAccessConstraints().add(wps.getAccessConstraints()); } // ServiceProvider ServiceProviderType sp = owsf.createServiceProviderType(); caps.setServiceProvider(sp); // TODO: set provder name from context SettingsInfo settings = wps.getGeoServer().getSettings(); if (settings.getContact().getContactOrganization() != null) { sp.setProviderName(settings.getContact().getContactOrganization()); } else { sp.setProviderName("GeoServer"); } sp.setProviderSite(owsf.createOnlineResourceType()); sp.getProviderSite().setHref(settings.getOnlineResource()); sp.setServiceContact(responsibleParty(settings, owsf)); // OperationsMetadata OperationsMetadataType om = owsf.createOperationsMetadataType(); caps.setOperationsMetadata(om); OperationType gco = owsf.createOperationType(); gco.setName("GetCapabilities"); gco.getDCP().add(Ows11Util.dcp("wps", request)); om.getOperation().add(gco); OperationType dpo = owsf.createOperationType(); dpo.setName("DescribeProcess"); dpo.getDCP().add(Ows11Util.dcp("wps", request)); om.getOperation().add(dpo); OperationType eo = owsf.createOperationType(); eo.setName("Execute"); eo.getDCP().add(Ows11Util.dcp("wps", request)); om.getOperation().add(eo); ProcessOfferingsType po = wpsf.createProcessOfferingsType(); caps.setProcessOfferings(po); // gather the process list for (ProcessFactory pf : GeoServerProcessors.getProcessFactories()) { for (Name name : pf.getNames()) { ProcessBriefType p = wpsf.createProcessBriefType(); p.setProcessVersion(pf.getVersion(name)); po.getProcess().add(p); p.setIdentifier(Ows11Util.code(name)); p.setTitle(Ows11Util.languageString(pf.getTitle(name))); p.setAbstract(Ows11Util.languageString(pf.getDescription(name))); } } // sort it ECollections.sort(po.getProcess(), new Comparator() { public int compare(Object o1, Object o2) { ProcessBriefType pb1 = (ProcessBriefType) o1; ProcessBriefType pb2 = (ProcessBriefType) o2; final String id1 = pb1.getIdentifier().getValue(); final String id2 = pb2.getIdentifier().getValue(); return id1.compareTo(id2); } }); LanguagesType1 languages = wpsf.createLanguagesType1(); caps.setLanguages(languages); DefaultType2 defaultLanguage = wpsf.createDefaultType2(); languages.setDefault(defaultLanguage); defaultLanguage.setLanguage("en-US"); LanguagesType supportedLanguages = wpsf.createLanguagesType(); languages.setSupported(supportedLanguages); supportedLanguages.getLanguage().add("en-US"); return caps; // Version detection and alternative invocation if being implemented. } ResponsiblePartySubsetType responsibleParty(SettingsInfo settings, Ows11Factory f) { ResponsiblePartySubsetType rp = f.createResponsiblePartySubsetType(); return rp; } }