142 lines
4.1 KiB
Java
142 lines
4.1 KiB
Java
package org.gcube.dataanalysis.geo.meta.features;
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import it.geosolutions.geonetwork.util.GNSearchRequest;
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import it.geosolutions.geonetwork.util.GNSearchResponse;
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import org.gcube.common.scope.api.ScopeProvider;
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import org.gcube.spatial.data.geonetwork.GeoNetwork;
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import org.gcube.spatial.data.geonetwork.GeoNetworkReader;
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import org.opengis.metadata.Metadata;
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import org.opengis.metadata.citation.OnlineResource;
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import org.opengis.metadata.distribution.DigitalTransferOptions;
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public class FeaturesManager {
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private String geonetworkUrl = "http://geoserver-dev.d4science-ii.research-infrastructures.eu/geonetwork/";
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private String geonetworkUser = "admin";
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private String geonetworkPwd = "admin";
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private String scope = "/gcube/devsec";
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public String getScope() {
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return scope;
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}
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public void setScope(String scope) {
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this.scope = scope;
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}
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private String searchInUrl(Metadata meta, String criterion) {
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String link = null;
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for (DigitalTransferOptions option : meta.getDistributionInfo().getTransferOptions()) {
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for (OnlineResource resource : option.getOnLines()) {
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String tlink = resource.getLinkage().toString();
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if (tlink.toLowerCase().contains(criterion.toLowerCase())) {
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link = tlink;
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break;
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}
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}
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}
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if (link == null)
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System.out.println("NO ONLINE LINK WAS FOUND ACCORDING TO THE CRITERION :" + criterion);
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return link;
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}
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public String getWFSLink(Metadata meta) {
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return searchInUrl(meta, "service=wfs");
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}
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// retrieves the wms link
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public String getWMSLink(Metadata meta) {
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return searchInUrl(meta, "service=wms");
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}
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public String getWCSLink(Metadata meta) {
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return searchInUrl(meta, "service=wcs");
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}
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public String getOpenDapLink(Metadata meta) {
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return searchInUrl(meta, "/dodsC");
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}
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public String getThreddsLink(Metadata meta) {
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return searchInUrl(meta, "catalog.xml");
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}
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public String getLayerName(Metadata meta) {
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String wmslink = getWMSLink(meta);
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String layer = null;
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String finder = "layers=";
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if (wmslink != null) {
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int idxfinder = wmslink.indexOf(finder);
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if (idxfinder > 0) {
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wmslink = wmslink.substring(idxfinder);
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int andIdx = wmslink.indexOf("&");
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if (andIdx < 0)
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andIdx = wmslink.length();
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layer = wmslink.substring(finder.length(), andIdx).trim();
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}
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}
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return layer;
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}
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public boolean isThreddsFile(Metadata meta) {
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return (getOpenDapLink(meta) != null);
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}
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public Metadata getGNInfobyTitle(String info) throws Exception {
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ScopeProvider.instance.set(scope);
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GeoNetworkReader gn = GeoNetwork.get();
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// Form query object
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gn.login();
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GNSearchRequest req = new GNSearchRequest();
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req.addParam(GNSearchRequest.Param.title, info);
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GNSearchResponse resp = gn.query(req);
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Metadata meta = null;
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if (resp.getCount() != 0)
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for (GNSearchResponse.GNMetadata metadata : resp) {
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meta = gn.getById(metadata.getUUID());
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break;
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}
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return meta;
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}
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public String getGeonetworkUrl() {
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return geonetworkUrl;
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}
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public void setGeonetworkUrl(String geonetworkUrl) {
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this.geonetworkUrl = geonetworkUrl;
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}
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public String getGeonetworkUser() {
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return geonetworkUser;
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}
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public void setGeonetworkUser(String geonetworkUser) {
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this.geonetworkUser = geonetworkUser;
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}
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public String getGeonetworkPwd() {
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return geonetworkPwd;
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}
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public void setGeonetworkPwd(String geonetworkPwd) {
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this.geonetworkPwd = geonetworkPwd;
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}
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public static void main(String args[]) throws Exception {
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// String title = "temperature (04091217ruc.nc)";
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// String title = "Bathymetry";
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String title = "FAO aquatic species distribution map of Melanogrammus aeglefinus";
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FeaturesManager fm = new FeaturesManager();
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Metadata meta = fm.getGNInfobyTitle(title);
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System.out.println("is file? " + fm.isThreddsFile(meta));
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System.out.println("opendap: " + fm.getOpenDapLink(meta));
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System.out.println("wcs:" + fm.getWCSLink(meta));
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System.out.println("wms:" + fm.getWMSLink(meta));
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System.out.println("thredds:" + fm.getThreddsLink(meta));
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}
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}
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