package edu.isi.karma.controller.command.worksheet;
import java.io.File;
import java.net.URL;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import edu.isi.karma.controller.command.Command;
import edu.isi.karma.controller.command.CommandException;
import edu.isi.karma.controller.command.CommandType;
import edu.isi.karma.controller.command.WorksheetCommand;
import edu.isi.karma.controller.update.ErrorUpdate;
import edu.isi.karma.controller.update.UpdateContainer;
import edu.isi.karma.rep.Workspace;
import edu.isi.karma.rep.metadata.WorksheetProperties.Property;
public class ApplyModelFromURLCommand extends WorksheetCommand{
private String modelURL;
private String modelContext;
private String modelRepository;
private String baseUrl = "http://localhost:8080/R2RMLMapping/local/repository/";
private boolean override;
private static Logger logger = LoggerFactory.getLogger(ApplyModelFromURLCommand.class);
public ApplyModelFromURLCommand(String id, String worksheetId, String modelURL, String modelContext, String modelRepository, String baseURL, boolean override) {
super(id, worksheetId);
this.modelURL = modelURL;
this.modelContext = modelContext;
this.modelRepository = modelRepository;
this.baseUrl = baseURL;
this.override = override;
}
@Override
public String getCommandName() {
return ApplyModelFromURLCommand.class.getSimpleName();
}
@Override
public String getTitle() {
return "Apply Models";
}
@Override
public String getDescription() {
return modelURL;
}
@Override
public CommandType getCommandType() {
return CommandType.notUndoable;
}
@Override
public UpdateContainer doIt(Workspace workspace) throws CommandException {
ApplyHistoryFromR2RMLModelCommandFactory factory = new ApplyHistoryFromR2RMLModelCommandFactory();
try {
String context = (modelContext != null && !modelContext.isEmpty()? (modelContext + "/") : "");
URL url = new URL(baseUrl + context + modelURL + "?modelRepository=" + modelRepository);
File file = new File("tmp.ttl");
FileUtils.copyURLToFile(url, file);
Command cmd = factory.createCommandFromFile(worksheetId, file, workspace, override);
UpdateContainer uc = cmd.doIt(workspace);
workspace.getWorksheet(worksheetId).getMetadataContainer().getWorksheetProperties().setPropertyValue(Property.modelUrl, modelURL);
workspace.getWorksheet(worksheetId).getMetadataContainer().getWorksheetProperties().setPropertyValue(Property.modelContext, modelContext);
workspace.getWorksheet(worksheetId).getMetadataContainer().getWorksheetProperties().setPropertyValue(Property.modelRepository, modelRepository);
file.delete();
return uc;
}catch(Exception e) {
String msg = "Error occured while applying history!";
logger.error(msg, e);
return new UpdateContainer(new ErrorUpdate(msg));
}
}
@Override
public UpdateContainer undoIt(Workspace workspace) {
// TODO Auto-generated method stub
return null;
}
}