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779bac69
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Marc NICOLAS
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package fr.ias.sitools.resources.geojson;
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import fr.cnes.sitools.common.exception.SitoolsException;
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import fr.cnes.sitools.common.resource.SitoolsParameterizedResource;
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import fr.cnes.sitools.dataset.DataSetApplication;
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import fr.cnes.sitools.dataset.database.DatabaseRequest;
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import fr.cnes.sitools.dataset.database.DatabaseRequestFactory;
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import fr.cnes.sitools.dataset.database.DatabaseRequestParameters;
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import fr.cnes.sitools.dataset.database.common.DataSetExplorerUtil;
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import fr.cnes.sitools.dataset.dto.ColumnConceptMappingDTO;
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import fr.cnes.sitools.dataset.dto.DictionaryMappingDTO;
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import fr.cnes.sitools.datasource.jdbc.model.AttributeValue;
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import fr.cnes.sitools.datasource.jdbc.model.Record;
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import fr.cnes.sitools.dictionary.model.Concept;
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import java.io.IOException;
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import java.io.Writer;
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import java.util.HashMap;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.restlet.data.MediaType;
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import org.restlet.ext.wadl.MethodInfo;
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import org.restlet.representation.Representation;
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import org.restlet.representation.Variant;
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import org.restlet.resource.Get;
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import org.restlet.representation.WriterRepresentation;
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public class DatasetToJsonORIG extends SitoolsParameterizedResource {
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private static final Logger LOG = Logger.getLogger(DatasetToJsonORIG.class.getName());
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private String dicoNameString = new String();
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final private String mimeTypeFits = "application/fits";
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final private int maxResultsSend = 999999999;
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final private double ratioSpolyToRaDec = 57.295779513;
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@Override
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public void sitoolsDescribe() {
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setName("DatasetToJson");
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setDescription("retrieves Dataset to Json file");
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}
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@Override
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public void doInit() {
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super.doInit();
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}
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@Get
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public Representation get() {
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return execute();
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}
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@Override
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protected void describeGet(MethodInfo info) {
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this.addInfo(info);
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info.setIdentifier("retrieve records and ");
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info.setDocumentation("Method to get Json file from a dataset");
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addStandardGetRequestInfo(info);
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DataSetExplorerUtil.addDatasetExplorerGetRequestInfo(info);
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DataSetApplication application = (DataSetApplication) getApplication();
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DataSetExplorerUtil.addDatasetExplorerGetFilterInfo(info, application.getFilterChained());
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addStandardResponseInfo(info);
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addStandardInternalServerErrorInfo(info);
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}
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@Override
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protected Representation head(Variant variant) {
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Representation repr = super.head();
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repr.setMediaType(MediaType.APPLICATION_JSON);
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return repr;
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}
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private Representation execute() {
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dicoNameString = DatasetToJsonModel.DICO_PARAM_NAME;
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Representation repr = new WriterRepresentation(MediaType.APPLICATION_JSON) {
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@Override
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public void write(Writer writer) throws IOException {
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DataSetApplication datasetApp = (DataSetApplication) getApplication();
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DataSetExplorerUtil dsExplorerUtil = new DataSetExplorerUtil(datasetApp, getRequest(), getContext());
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DictionaryMappingDTO dico =null;
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String dicoName = getParameterValue(dicoNameString);
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final HashMap<Concept,String> conceptsColumns = getcolumnAliasFromDico(dicoName, dico, datasetApp);
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if (datasetApp.getConverterChained() != null) {
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datasetApp.getConverterChained().getContext().getAttributes().put("REQUEST", getRequest());
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}
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final DatabaseRequestParameters params = dsExplorerUtil.getDatabaseParams();
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params.setPaginationExtend(maxResultsSend);
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DatabaseRequest databaseRequest = DatabaseRequestFactory.getDatabaseRequest(params);
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try {
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databaseRequest.createRequest();
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}catch (SitoolsException e) {
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e.printStackTrace();
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}
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writer.write("{");
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writer.write("\"type\":\"FeatureCollection\",");
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writer.write("\"totalResults\":" + databaseRequest.getTotalCount() + ",");
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writer.write("\"features\":[");
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try {
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boolean first = true;
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while (databaseRequest.nextResult()) {
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Record rec = databaseRequest.getRecord();
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if (!first) {
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writer.write(",");
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}
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else {
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first = false;
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}
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String geometry = "";
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String services = "";
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String properties = "";
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boolean firstProp = true;
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String coords[] = new String[2];
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String coordinateReference = "";
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String urlDownloadFits = "";
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String spoly = "";
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for(Concept concept : conceptsColumns.keySet()){
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concept.getPropertyFromName("category");
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String colAlias = conceptsColumns.get(concept);
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for(AttributeValue attr : rec.getAttributeValues()){
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if(attr.getName().equals(colAlias) && attr.getValue() != null && !attr.getValue().equals("")){
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if(concept.getPropertyFromName("category").getValue().contains("properties")){
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if (!firstProp) {
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properties += ",";
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}
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else {
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firstProp = false;
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}
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properties += "\"" + concept.getName().toString() + "\":\"" + attr.getValue() + "\"";
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}
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if(concept.getPropertyFromName("category").getValue().contains("geometry")){
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if(concept.getName().equals("ra")){
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coords[0]= attr.getValue().toString();
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}else if(concept.getName().equals("dec")){
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coords[1]= attr.getValue().toString();
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}
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if(concept.getName().equals("coordref")){
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coordinateReference = attr.getValue().toString();
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}
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if(concept.getName().equals("spoly")){
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spoly = attr.getValue().toString();
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}
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}
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if(concept.getPropertyFromName("category").getValue().contains("services")){
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if(concept.getName().equals("download")){
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urlDownloadFits = attr.getValue().toString();
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}
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}
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}
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}
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}
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geometry = setGeometry(coords, coordinateReference, spoly);
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if(!urlDownloadFits.isEmpty()){
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services = setServices(urlDownloadFits);
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}
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writer.write("{");
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writer.write("\"type\":\"feature\",");
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writer.write("\"geometry\":{");
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writer.write(geometry);
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writer.write("}");
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writer.write(",");
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writer.write("\"properties\":{");
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writer.write(properties);
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writer.write("}");
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if(!services.equals("")){
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writer.write(",");
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writer.write("\"services\":{");
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writer.write(services);
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writer.write("}");
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}
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writer.write("}");
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}
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writer.write("]");
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}catch (SitoolsException ex) {
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Logger.getLogger(DatasetToJsonORIG.class.getName()).log(Level.SEVERE, null, ex);
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}finally {
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writer.write("}");
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if (databaseRequest != null) {
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try {
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databaseRequest.close();
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}catch (SitoolsException e) {
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e.printStackTrace();
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}
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}
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if (writer != null) {
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writer.flush();
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}
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}
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}
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};
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return repr;
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}
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private HashMap<Concept,String> getcolumnAliasFromDico(String dicoName, DictionaryMappingDTO dico, DataSetApplication datasetApp){
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dico = datasetApp.getColumnConceptMappingDTO(dicoName);
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final List<ColumnConceptMappingDTO> colConceptMappingDTOList = dico.getMapping();
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final HashMap<Concept,String> conceptColumn = new HashMap<Concept,String>();
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for(ColumnConceptMappingDTO concepts : colConceptMappingDTOList){
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conceptColumn.put(concepts.getConcept(), concepts.getColumnAlias());
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}
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return conceptColumn;
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}
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private String setGeometry(String[] coords, String coordRef, String spoly){
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String geometry = new String();
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String[] spolyStringTmp = new String[4];
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String[] spolyConverted = new String[4];
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if(spoly.equals("")){
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geometry = "\"coordinates\": ["+coords[0]+","+coords[1]+"],";
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geometry += "\"referencesystem\": \""+coordRef+"\",\"type\": \"Point\"";
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}else{
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String[] tmpString = spoly.split("\\)");
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tmpString[0] = tmpString[0].substring(2, tmpString[0].length());
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spolyStringTmp[0] = tmpString[0];
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for(int i=1;i<4;i++){
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spolyStringTmp[i] = tmpString[i].substring(2, tmpString[i].length());
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}
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for(int k=0;k<spolyStringTmp.length;k++){
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spolyConverted[k] = "["+String.valueOf((Double.parseDouble(spolyStringTmp[k].split(",")[0])*ratioSpolyToRaDec))
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+" , "+String.valueOf((Double.parseDouble(spolyStringTmp[k].split(",")[1])*ratioSpolyToRaDec))+"]";
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}
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geometry = "\"coordinates\":[["+spolyConverted[3]+","+spolyConverted[2]+","+spolyConverted[1]+","+spolyConverted[0]+","+spolyConverted[3]+"]],";
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geometry += "\"referencesystem\": \""+coordRef+"\",\"type\": \"Polygon\"";
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}
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return geometry;
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}
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private String setServices(String urlDownFits){
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String services = new String();
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services += "\"download\":{ \"mimetype\":\""+mimeTypeFits+"\",";
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services += "\"url\":\""+urlDownFits+"\"}";
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return services;
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}
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} |