Package org.apache.jena.query.spatial.assembler

Source Code of org.apache.jena.query.spatial.assembler.SpatialDatasetAssembler

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package org.apache.jena.query.spatial.assembler;

import static org.apache.jena.query.spatial.assembler.SpatialVocab.pDataset;
import static org.apache.jena.query.spatial.assembler.SpatialVocab.pIndex;

import org.apache.jena.query.spatial.SpatialDatasetFactory;
import org.apache.jena.query.spatial.SpatialIndex;

import com.hp.hpl.jena.assembler.Assembler;
import com.hp.hpl.jena.assembler.Mode;
import com.hp.hpl.jena.assembler.assemblers.AssemblerBase;
import com.hp.hpl.jena.query.Dataset;
import com.hp.hpl.jena.rdf.model.Resource;
import com.hp.hpl.jena.sparql.util.graph.GraphUtils;

public class SpatialDatasetAssembler extends AssemblerBase implements Assembler
{
//    private DatasetAssembler datasetAssembler = new DatasetAssembler() ;
//   
//    public static Resource getType() { return textDataset ; }
       
    /*
<#spatial_dataset> rdf:type     spatial:SpatialDataset ;
    spatial:dataset <#dataset> ;
    spatial:index   <#index> ;
    .

    */
   
    @Override
    public Dataset open(Assembler a, Resource root, Mode mode)
    {
        Resource dataset = GraphUtils.getResourceValue(root, pDataset) ;
        Resource index   = GraphUtils.getResourceValue(root, pIndex) ;
       
        Dataset ds = (Dataset)a.open(dataset) ;
        SpatialIndex textIndex = (SpatialIndex)a.open(index) ;
       
        Dataset dst = SpatialDatasetFactory.create(ds, textIndex) ;
        return dst ;
       
    }
}
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