/*******************************************************************************
* Copyright 2012 University of Southern California
*
* Licensed 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.
*
* This code was developed by the Information Integration Group as part
* of the Karma project at the Information Sciences Institute of the
* University of Southern California. For more information, publications,
* and related projects, please see: http://www.isi.edu/integration
******************************************************************************/
package edu.isi.karma.rdf;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import edu.isi.karma.config.ModelingConfiguration;
import edu.isi.karma.controller.command.CommandException;
import edu.isi.karma.controller.command.ICommand.CommandTag;
import edu.isi.karma.controller.history.WorksheetCommandHistoryExecutor;
import edu.isi.karma.kr2rml.mapping.KR2RMLMapping;
import edu.isi.karma.rep.Worksheet;
import edu.isi.karma.rep.Workspace;
import edu.isi.karma.rep.WorkspaceManager;
import edu.isi.karma.webserver.ExecutionController;
import edu.isi.karma.webserver.KarmaException;
import edu.isi.karma.webserver.WorkspaceRegistry;
public abstract class RdfGenerator {
private static Logger logger = LoggerFactory.getLogger(RdfGenerator.class);
protected String selectionName;
public RdfGenerator(String selectionName) {
this.selectionName = selectionName;
}
protected Workspace initializeWorkspace() {
Workspace workspace = WorkspaceManager.getInstance().createWorkspace();
WorkspaceRegistry.getInstance().register(new ExecutionController(workspace));
ModelingConfiguration.load();
ModelingConfiguration.setManualAlignment(true);
return workspace;
}
protected void removeWorkspace(Workspace workspace) {
WorkspaceManager.getInstance().removeWorkspace(workspace.getId());
WorkspaceRegistry.getInstance().deregister(workspace.getId());
}
protected void applyHistoryToWorksheet(Workspace workspace, Worksheet worksheet,
KR2RMLMapping mapping) throws JSONException {
WorksheetCommandHistoryExecutor wchr = new WorksheetCommandHistoryExecutor(worksheet.getId(), workspace);
try
{
List<CommandTag> tags = new ArrayList<CommandTag>();
tags.add(CommandTag.Transformation);
wchr.executeCommandsByTags(tags, mapping.getWorksheetHistory());
}
catch (CommandException | KarmaException e)
{
logger.error("Unable to execute column transformations", e);
}
}
}