Examples with DatasetDescription org.apache.jena.sparql.core.DatasetDescription used on opensource projects

Example 1 with DatasetDescription

use of org.apache.jena.sparql.core.DatasetDescription in project jena by apache.

the class DatasetDescriptionAssembler method open.

@Override
public Object open(Assembler a, Resource root, Mode mode) {
    DatasetDescription ds = new DatasetDescription();
    // -------- Default graph
    // Can use ja:graph or ja:defaultGraph
    List<String> dftGraphs1 = GraphUtils.multiValueString(root, DatasetAssemblerVocab.pDefaultGraph);
    List<String> dftGraphs2 = GraphUtils.multiValueString(root, DatasetAssemblerVocab.pGraph);
    ds.getDefaultGraphURIs().addAll(dftGraphs1);
    ds.getDefaultGraphURIs().addAll(dftGraphs2);
    // -------- Named graphs
    List<String> namedGraphURIs = GraphUtils.multiValueString(root, DatasetAssemblerVocab.pNamedGraph);
    ds.getNamedGraphURIs().addAll(namedGraphURIs);
    return ds;
}

Example 2 with DatasetDescription

use of org.apache.jena.sparql.core.DatasetDescription in project jena by apache.

the class SPARQL_QueryDataset method decideDataset.

/** Decide the dataset - this modifies the query
     *  If the query has a dataset description.
     */
@Override
protected Dataset decideDataset(HttpAction action, Query query, String queryStringLog) {
    DatasetGraph dsg = action.getActiveDSG();
    DatasetDescription dsDesc = getDatasetDescription(action, query);
    if (dsDesc != null) {
        dsg = DynamicDatasets.dynamicDataset(dsDesc, dsg, false);
        if (query.hasDatasetDescription()) {
            query.getGraphURIs().clear();
            query.getNamedGraphURIs().clear();
        }
    }
    return DatasetFactory.wrap(dsg);
}

Example 3 with DatasetDescription

use of org.apache.jena.sparql.core.DatasetDescription in project jena by apache.

the class QueryEngineBase method prepareDataset.

private DatasetGraph prepareDataset(DatasetGraph originalDataset, Query query) {
    DatasetDescription dsDesc = DatasetDescription.create(query, context);
    DatasetGraph dsg = originalDataset;
    if (dsg != null) {
        if (dsDesc != null) {
            if (query.hasDatasetDescription())
                dsg = dynamicDataset(dsDesc, dsg, false);
        }
        return dsg;
    }
    // No DatasetGraph
    if (!query.hasDatasetDescription())
        throw new QueryExecException("No dataset and no dataset description for query");
    // DatasetDescription : Build it.
    String baseURI = query.getBaseURI();
    if (baseURI == null)
        baseURI = IRIs.getSystemBase().str();
    dsg = DatasetUtils.createDatasetGraph(dsDesc, baseURI);
    return dsg;
}

Example 4 with DatasetDescription

use of org.apache.jena.sparql.core.DatasetDescription in project jena by apache.

the class SPARQL_QueryDataset method decideDatasetDynamic.

/**
 * Function to return the {@code Pair<DatasetGraph, Query>} based on processing any dataset description as {@link DynamicDatasets a dynamic dataset}.
 * The query is modified to remove any dataset description.
 *
 * @param action
 * @param query
 * @param queryStringLog
 * @return Pair&lt;DatasetGraph, Query&gt;
 */
public Pair<DatasetGraph, Query> decideDatasetDynamic(HttpAction action, Query query, String queryStringLog) {
    DatasetGraph dsg = getDataset(action);
    DatasetDescription dsDesc = SPARQLProtocol.getDatasetDescription(action, query);
    if (dsDesc != null) {
        dsg = DynamicDatasets.dynamicDataset(dsDesc, dsg, false);
        if (query.hasDatasetDescription()) {
            query.getGraphURIs().clear();
            query.getNamedGraphURIs().clear();
        }
    }
    return Pair.create(dsg, query);
}