com.eduworks.cruncher.ontology.CruncherOntologyDelete Maven / Gradle / Ivy

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package com.eduworks.cruncher.ontology;

import java.io.InputStream;
import java.util.Map;

import org.json.JSONException;
import org.json.JSONObject;

import com.eduworks.ontology.Ontology;
import com.eduworks.resolver.Context;
import com.hp.hpl.jena.query.Dataset;
import com.hp.hpl.jena.query.ReadWrite;
import com.hp.hpl.jena.shared.ClosedException;


public class CruncherOntologyDelete extends CruncherOntology {

	@Override
	public Object resolve(Context c,
			Map parameters, Map dataStreams) throws JSONException {
		
		String directory = decodeValue(optAsString("directory","", c,parameters, dataStreams));
		
		String ontologyId = decodeValue(optAsString("ontologyId","", c,parameters, dataStreams));

		Ontology o = null;
		Dataset tdbDataset = getDataSet(directory,ReadWrite.WRITE,c);

		try
		{
			try{
				o = getOntology(ontologyId, tdbDataset, c);
			}catch(ClosedException e){
				clearContextData(c);
				return resolve(c,parameters, dataStreams);
			}
			o.delete(tdbDataset);
			
		}
		catch (RuntimeException e)
		{
			
			throw e;
		}
		finally
		{
			if (o != null)
				o.close(false);
		}
		
		return null;
	}

	@Override
	public String getDescription() {
		return "Deletes the ontology specified from disk";
	}

	@Override
	public String getReturn() {
		return null;
	}

	@Override
	public String getAttribution() {
		return ATTRIB_NONE;
	}

	@Override
	public JSONObject getParameters() throws JSONException {
		return jo("ontologyId", "string", "directory", "path string");
	}

}