/*******************************************************************************
* 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.controller.command.transformation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import edu.isi.karma.controller.command.CommandException;
import edu.isi.karma.controller.command.CommandType;
import edu.isi.karma.controller.update.ErrorUpdate;
import edu.isi.karma.controller.update.UpdateContainer;
import edu.isi.karma.controller.update.WorksheetUpdateFactory;
import edu.isi.karma.rep.HNode;
import edu.isi.karma.rep.RepFactory;
import edu.isi.karma.rep.Worksheet;
import edu.isi.karma.rep.Workspace;
import edu.isi.karma.webserver.ExecutionController;
import edu.isi.karma.webserver.WorkspaceRegistry;
public class SubmitEditPythonTransformationCommand extends SubmitPythonTransformationCommand {
private final String targetHNodeId;
private static Logger logger = LoggerFactory
.getLogger(SubmitEditPythonTransformationCommand.class);
public SubmitEditPythonTransformationCommand(String id, String newColumnName, String transformationCode,
String worksheetId, String hNodeId,
String errorDefaultValue, String targetHNodeId, String selectionId) {
super(id, newColumnName, transformationCode, worksheetId, hNodeId, errorDefaultValue, selectionId);
this.targetHNodeId = targetHNodeId;
this.pythonNodeId = targetHNodeId;
logger.debug("SubmitEditPythonTransformationCommand:" + id + " newColumnName:" + newColumnName + ", code=" + transformationCode);
}
@Override
public String getCommandName() {
return this.getClass().getSimpleName();
}
@Override
public String getTitle() {
return "Edit Python Transformation";
}
@Override
public String getDescription() {
return newColumnName;
}
@Override
public CommandType getCommandType() {
return CommandType.undoable;
}
@Override
public UpdateContainer doIt(Workspace workspace) throws CommandException {
Worksheet worksheet = workspace.getWorksheet(worksheetId);
RepFactory f = workspace.getFactory();
HNode hNode = f.getHNode(hNodeId);
inputColumns.clear();
outputColumns.clear();
outputColumns.add(targetHNodeId);
ExecutionController ctrl = WorkspaceRegistry.getInstance().getExecutionController(
workspace.getId());
//this.previousPythonTransformationCommand = ctrl.getWorkspace().getCommandHistory().getCommand(previousCommandId);
this.saveOrResetColumnValues(workspace, ctrl);
try
{
UpdateContainer c = applyPythonTransformation(workspace, worksheet, f,
hNode, ctrl, targetHNodeId);
WorksheetUpdateFactory.detectSelectionStatusChange(worksheetId, workspace, this);
return c;
}
catch (Exception e )
{
logger.error("Error occured during python transformation.",e);
return new UpdateContainer(new ErrorUpdate("Error occured while creating applying Python transformation to the column."));
}
}
@Override
public UpdateContainer undoIt(Workspace workspace) {
try {
if(previousPythonTransformationCommand instanceof SubmitPythonTransformationCommand)
{
SubmitPythonTransformationCommand prevCommand = (SubmitPythonTransformationCommand)previousPythonTransformationCommand;
//Previous python command exists, lets reset the values, and then start again
prevCommand.resetColumnValues(workspace);
}
UpdateContainer uc = previousPythonTransformationCommand.doIt(workspace);
return uc;
} catch (CommandException e) {
return new UpdateContainer(new ErrorUpdate("Error occured while applying previous Python transformation to the column."));
}
}
// @Override
// public Set<String> getInputColumns() {
// Set<String> t = new HashSet<String>();
// t.addAll(inputColumns);
// return t;
// }
//
// @Override
// public Set<String> getOutputColumns() {
// Set<String> t = new HashSet<String>();
// t.add(targetHNodeId);
// return t;
// }
}