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Copyright 2010, Google Inc.
All rights reserved.
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modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
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* Redistributions in binary form must reproduce the above
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this software without specific prior written permission.
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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*/
/**
*
*/
package com.google.refine.model.changes;
import java.io.IOException;
import java.io.LineNumberReader;
import java.io.Writer;
import java.util.List;
import java.util.Properties;
import com.google.refine.ProjectManager;
import com.google.refine.history.Change;
import com.google.refine.model.Column;
import com.google.refine.model.Project;
import com.google.refine.model.ReconStats;
import com.google.refine.model.recon.ReconConfig;
import com.google.refine.util.ParsingUtilities;
import com.google.refine.util.Pool;
public class ReconChange extends MassCellChange {
final protected ReconConfig _newReconConfig;
protected ReconStats _newReconStats;
protected ReconConfig _oldReconConfig;
protected ReconStats _oldReconStats;
public ReconChange(
List<CellChange> cellChanges,
String commonColumnName,
ReconConfig newReconConfig,
ReconStats newReconStats // can be null
) {
super(cellChanges, commonColumnName, false);
_newReconConfig = newReconConfig;
_newReconStats = newReconStats;
}
public ReconChange(
CellChange[] cellChanges,
String commonColumnName,
ReconConfig newReconConfig,
ReconStats newReconStats // can be null
) {
super(cellChanges, commonColumnName, false);
_newReconConfig = newReconConfig;
_newReconStats = newReconStats;
}
public ReconChange(
CellChange cellChange,
String commonColumnName,
ReconConfig newReconConfig,
ReconStats newReconStats // can be null
) {
super(cellChange, commonColumnName, false);
_newReconConfig = newReconConfig;
_newReconStats = newReconStats;
}
@Override
public void apply(Project project) {
synchronized (project) {
super.apply(project);
Column column = project.columnModel.getColumnByName(_commonColumnName);
if (_newReconStats == null) {
_newReconStats = ReconStats.create(project, column.getCellIndex());
}
_oldReconConfig = column.getReconConfig();
_oldReconStats = column.getReconStats();
column.setReconConfig(_newReconConfig);
column.setReconStats(_newReconStats);
column.clearPrecomputes();
ProjectManager.singleton.getInterProjectModel().flushJoinsInvolvingProjectColumn(project.id, _commonColumnName);
}
}
@Override
public void revert(Project project) {
synchronized (project) {
super.revert(project);
Column column = project.columnModel.getColumnByName(_commonColumnName);
column.setReconConfig(_oldReconConfig);
column.setReconStats(_oldReconStats);
column.clearPrecomputes();
ProjectManager.singleton.getInterProjectModel().flushJoinsInvolvingProjectColumn(project.id, _commonColumnName);
}
}
@Override
public void save(Writer writer, Properties options) throws IOException {
writer.write("newReconConfig=");
if (_newReconConfig != null) {
_newReconConfig.save(writer);
}
writer.write('\n');
writer.write("newReconStats=");
if (_newReconStats != null) {
_newReconStats.save(writer);
}
writer.write('\n');
writer.write("oldReconConfig=");
if (_oldReconConfig != null) {
_oldReconConfig.save(writer);
}
writer.write('\n');
writer.write("oldReconStats=");
if (_oldReconStats != null) {
_oldReconStats.save(writer);
}
writer.write('\n');
super.save(writer, options);
}
static public Change load(LineNumberReader reader, Pool pool) throws Exception {
ReconConfig newReconConfig = null;
ReconStats newReconStats = null;
ReconConfig oldReconConfig = null;
ReconStats oldReconStats = null;
String commonColumnName = null;
CellChange[] cellChanges = null;
String line;
while ((line = reader.readLine()) != null && !"/ec/".equals(line)) {
int equal = line.indexOf('=');
CharSequence field = line.subSequence(0, equal);
String value = line.substring(equal + 1);
if ("newReconConfig".equals(field)) {
if (value.length() > 0) {
newReconConfig = ReconConfig.reconstruct(ParsingUtilities.evaluateJsonStringToObject(value));
}
} else if ("newReconStats".equals(field)) {
if (value.length() > 0) {
newReconStats = ReconStats.load(ParsingUtilities.evaluateJsonStringToObject(value));
}
} else if ("oldReconConfig".equals(field)) {
if (value.length() > 0) {
oldReconConfig = ReconConfig.reconstruct(ParsingUtilities.evaluateJsonStringToObject(value));
}
} else if ("oldReconStats".equals(field)) {
if (value.length() > 0) {
oldReconStats = ReconStats.load(ParsingUtilities.evaluateJsonStringToObject(value));
}
} else if ("commonColumnName".equals(field)) {
commonColumnName = value;
} else if ("cellChangeCount".equals(field)) {
int cellChangeCount = Integer.parseInt(value);
cellChanges = new CellChange[cellChangeCount];
for (int i = 0; i < cellChangeCount; i++) {
cellChanges[i] = CellChange.load(reader, pool);
}
}
}
ReconChange change = new ReconChange(
cellChanges, commonColumnName, newReconConfig, newReconStats);
change._oldReconConfig = oldReconConfig;
change._oldReconStats = oldReconStats;
return change;
}
}