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package com.google.refine.operations.recon;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONWriter;
import com.google.refine.browsing.RowVisitor;
import com.google.refine.history.Change;
import com.google.refine.model.AbstractOperation;
import com.google.refine.model.Cell;
import com.google.refine.model.Column;
import com.google.refine.model.Project;
import com.google.refine.model.Recon;
import com.google.refine.model.Recon.Judgment;
import com.google.refine.model.Row;
import com.google.refine.model.changes.CellChange;
import com.google.refine.model.changes.ReconChange;
import com.google.refine.operations.EngineDependentMassCellOperation;
import com.google.refine.operations.OperationRegistry;
public class ReconMarkNewTopicsOperation extends EngineDependentMassCellOperation {
final protected boolean _shareNewTopics;
static public AbstractOperation reconstruct(Project project, JSONObject obj) throws Exception {
JSONObject engineConfig = obj.getJSONObject("engineConfig");
return new ReconMarkNewTopicsOperation(
engineConfig,
obj.getString("columnName"),
obj.has("shareNewTopics") ? obj.getBoolean("shareNewTopics") : false
);
}
public ReconMarkNewTopicsOperation(JSONObject engineConfig, String columnName, boolean shareNewTopics) {
super(engineConfig, columnName, false);
_shareNewTopics = shareNewTopics;
}
@Override
public void write(JSONWriter writer, Properties options)
throws JSONException {
writer.object();
writer.key("op"); writer.value(OperationRegistry.s_opClassToName.get(this.getClass()));
writer.key("description"); writer.value(getBriefDescription(null));
writer.key("engineConfig"); writer.value(getEngineConfig());
writer.key("columnName"); writer.value(_columnName);
writer.key("shareNewTopics"); writer.value(_shareNewTopics);
writer.endObject();
}
@Override
protected String getBriefDescription(Project project) {
return "Mark to create new topics for cells in column " + _columnName +
(_shareNewTopics ?
", one topic for each group of similar cells" :
", one topic for each cell");
}
@Override
protected String createDescription(Column column,
List<CellChange> cellChanges) {
return "Mark to create new topics for " + cellChanges.size() +
" cells in column " + column.getName() +
(_shareNewTopics ?
", one topic for each group of similar cells" :
", one topic for each cell");
}
@Override
protected RowVisitor createRowVisitor(Project project, List<CellChange> cellChanges, long historyEntryID) throws Exception {
Column column = project.columnModel.getColumnByName(_columnName);
return new RowVisitor() {
int cellIndex;
List<CellChange> cellChanges;
Map<String, Recon> sharedRecons = new HashMap<String, Recon>();
long historyEntryID;
public RowVisitor init(int cellIndex, List<CellChange> cellChanges, long historyEntryID) {
this.cellIndex = cellIndex;
this.cellChanges = cellChanges;
this.historyEntryID = historyEntryID;
return this;
}
@Override
public void start(Project project) {
// nothing to do
}
@Override
public void end(Project project) {
// nothing to do
}
@Override
public boolean visit(Project project, int rowIndex, Row row) {
Cell cell = row.getCell(cellIndex);
if (cell != null) {
Recon recon = null;
if (_shareNewTopics) {
String s = cell.value == null ? "" : cell.value.toString();
if (sharedRecons.containsKey(s)) {
recon = sharedRecons.get(s);
recon.judgmentBatchSize++;
} else {
recon = new Recon(historyEntryID, null, null);
recon.judgment = Judgment.New;
recon.judgmentBatchSize = 1;
recon.judgmentAction = "mass";
sharedRecons.put(s, recon);
}
} else {
recon = cell.recon == null ? new Recon(historyEntryID, null, null) : cell.recon.dup(historyEntryID);
recon.match = null;
recon.matchRank = -1;
recon.judgment = Judgment.New;
recon.judgmentBatchSize = 1;
recon.judgmentAction = "mass";
}
Cell newCell = new Cell(cell.value, recon);
CellChange cellChange = new CellChange(rowIndex, cellIndex, cell, newCell);
cellChanges.add(cellChange);
}
return false;
}
}.init(column.getCellIndex(), cellChanges, historyEntryID);
}
@Override
protected Change createChange(Project project, Column column, List<CellChange> cellChanges) {
return new ReconChange(
cellChanges,
_columnName,
column.getReconConfig(),
null
);
}
}