/******************************************************************************* * 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 java.util.ArrayList; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import java.util.Map.Entry; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import edu.isi.karma.controller.command.CommandException; import edu.isi.karma.controller.command.worksheet.AddValuesCommand; import edu.isi.karma.controller.command.worksheet.AddValuesCommandFactory; import edu.isi.karma.controller.command.worksheet.MultipleValueEditColumnCommand; import edu.isi.karma.controller.command.worksheet.MultipleValueEditColumnCommandFactory; import edu.isi.karma.controller.history.HistoryJsonUtil.ParameterType; import edu.isi.karma.controller.update.ErrorUpdate; import edu.isi.karma.controller.update.InfoUpdate; 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.HNode.HNodeType; import edu.isi.karma.rep.HNodePath; import edu.isi.karma.rep.Node; import edu.isi.karma.rep.Node.NodeStatus; import edu.isi.karma.rep.RepFactory; import edu.isi.karma.rep.Worksheet; import edu.isi.karma.rep.Workspace; import edu.isi.karma.util.CommandInputJSONUtil; import edu.isi.karma.webserver.ExecutionController; import edu.isi.karma.webserver.KarmaException; public abstract class MutatingPythonTransformationCommand extends PythonTransformationCommand { private static Logger logger = LoggerFactory.getLogger(MutatingPythonTransformationCommand.class); protected final String newColumnName; protected List<Node> affectedNodes = new LinkedList<>(); protected boolean isJSONOutput = false; public MutatingPythonTransformationCommand(String id, String model, String newColumnName, String transformationCode, String worksheetId, String hNodeId, String errorDefaultValue, String selectionId, boolean isJSONOutput) { super(id, model, transformationCode, worksheetId, hNodeId, errorDefaultValue, selectionId); this.newColumnName = newColumnName; this.isJSONOutput = isJSONOutput; } @Override public String getDescription() { return newColumnName; } protected UpdateContainer applyPythonTransformation(Workspace workspace, Worksheet worksheet, RepFactory f, HNode hNode, ExecutionController ctrl, String newHNodeId) { try { JSONArray transformedRows = new JSONArray(); JSONArray errorValues = new JSONArray(); generateTransformedValues(workspace, worksheet, f, hNode, transformedRows, errorValues, null); // Invoke the MultipleValueEditColumnCommand JSONArray multiCellEditInput = getMultiCellValueEditInputJSON(transformedRows, newHNodeId); MultipleValueEditColumnCommandFactory mfc = (MultipleValueEditColumnCommandFactory) ctrl.getCommandFactoryMap().get(MultipleValueEditColumnCommand.class.getSimpleName()); MultipleValueEditColumnCommand mvecc = (MultipleValueEditColumnCommand) mfc.createCommand(multiCellEditInput, model, workspace); mvecc.doIt(workspace); } catch (Exception e) { logger.error("Error occured during python transformation.",e); return new UpdateContainer(new ErrorUpdate("Error occured while applying Python transformation to the column.")); } worksheet.getMetadataContainer().getColumnMetadata().addColumnPythonTransformation(newHNodeId, this.transformationCode); worksheet.getMetadataContainer().getColumnMetadata().addPreviousCommandId(newHNodeId, this.id); worksheet.getMetadataContainer().getColumnMetadata().addColumnDerivedFrom(newHNodeId, hNodeId); // Prepare the output container UpdateContainer c = new UpdateContainer(); c.append(WorksheetUpdateFactory.createRegenerateWorksheetUpdates(worksheetId, getSuperSelection(worksheet), workspace.getContextId())); /** Add the alignment update **/ c.append(computeAlignmentAndSemanticTypesAndCreateUpdates(workspace)); c.add(new InfoUpdate("Transformation complete")); return c; } private JSONArray getMultiCellValueEditInputJSON(JSONArray rowsArray, String newHNodeId) throws JSONException { JSONArray arr = new JSONArray(); arr.put(CommandInputJSONUtil.createJsonObject(MultipleValueEditColumnCommandFactory.Arguments.worksheetId.name(), worksheetId, ParameterType.worksheetId)); arr.put(CommandInputJSONUtil.createJsonObject(MultipleValueEditColumnCommandFactory.Arguments.hNodeID.name(), newHNodeId, ParameterType.worksheetId)); arr.put(CommandInputJSONUtil.createJsonObject(MultipleValueEditColumnCommandFactory.Arguments.rows.name(), rowsArray, ParameterType.other)); return arr; } protected Map<String, String> gatherTransformedResults(Workspace workspace, String hNodeId) { Map<String, String> rowToValueMapping = new HashMap<>(); HNodePath hNodePath = workspace.getFactory().getHNode(hNodeId).getHNodePath(workspace.getFactory()); List<Node> nodes = new ArrayList<>(); workspace.getWorksheet(worksheetId).getDataTable().collectNodes(hNodePath, nodes, getSuperSelection(workspace)); for (Node node : nodes) { rowToValueMapping.put(node.getBelongsToRow().getId(), node.getValue().asString()); node.clearValue(NodeStatus.original); affectedNodes.add(node); } return rowToValueMapping; } protected void handleJSONOutput(Workspace workspace, Map<String, String> mapping, HNode newNode) throws JSONException, KarmaException, CommandException { String name = newNode.getColumnName(); AddValuesCommandFactory addFactory = new AddValuesCommandFactory(); for (Entry<String, String> entry : mapping.entrySet()) { JSONArray array = new JSONArray(); JSONObject obj2 = new JSONObject(); Object obj = entry.getValue(); try { obj = new JSONObject(entry.getValue()); } catch(Exception e) {} try { obj = new JSONArray(entry.getValue()); } catch(Exception e) {} obj2.put("rowId", entry.getKey()); obj2.put("rowIdHash", ""); obj2.put("values", obj); array.put(obj2); JSONArray input = new JSONArray(); JSONObject obj3 = new JSONObject(); obj3.put("name", "AddValues"); obj3.put("value", array.toString()); obj3.put("type", "other"); input.put(obj3); AddValuesCommand command = (AddValuesCommand) addFactory.createCommand(input, model, workspace, hNodeId, worksheetId, newNode.getHTableId(), name, HNodeType.Transformation, getSuperSelection(workspace).getName()); command.doIt(workspace); } } }