public static Change load(LineNumberReader reader, Pool pool) throws Exception {
String baseColumnName = null;
int columnInsertIndex = -1;
List<String> columnNames = null;
List<DBpediaType> columnTypes = null;
List<Integer> rowIndices = null;
List<DataExtension> dataExtensions = null;
List<Row> oldRows = null;
List<Row> newRows = null;
int firstNewCellIndex = -1;
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 ("baseColumnName".equals(field)) {
baseColumnName = value;
} else if ("columnInsertIndex".equals(field)) {
columnInsertIndex = Integer.parseInt(value);
} else if ("firstNewCellIndex".equals(field)) {
firstNewCellIndex = Integer.parseInt(value);
} else if ("rowIndexCount".equals(field)) {
int count = Integer.parseInt(value);
rowIndices = new ArrayList<Integer>(count);
for (int i = 0; i < count; i++) {
line = reader.readLine();
if (line != null) {
rowIndices.add(Integer.parseInt(line));
}
}
} else if ("columnNameCount".equals(field)) {
int count = Integer.parseInt(value);
columnNames = new ArrayList<String>(count);
for (int i = 0; i < count; i++) {
line = reader.readLine();
if (line != null) {
columnNames.add(line);
}
}
} else if ("columnTypeCount".equals(field)) {
int count = Integer.parseInt(value);
columnTypes = new ArrayList<DBpediaType>(count);
for (int i = 0; i < count; i++) {
line = reader.readLine();
columnTypes.add(DBpediaType.load(ParsingUtilities.evaluateJsonStringToObject(line)));
}
} else if ("dataExtensionCount".equals(field)) {
int count = Integer.parseInt(value);
dataExtensions = new ArrayList<DataExtension>(count);
for (int i = 0; i < count; i++) {
line = reader.readLine();
if (line == null) {
continue;
}
if (line.length() == 0) {
dataExtensions.add(null);
continue;
}
int rowCount = Integer.parseInt(line);
Object[][] data = new Object[rowCount][];
for (int r = 0; r < rowCount; r++) {
Object[] row = new Object[columnNames.size()];
for (int c = 0; c < columnNames.size(); c++) {
line = reader.readLine();
row[c] = ReconCandidate.loadStreaming(line);
}
data[r] = row;
}
dataExtensions.add(new DataExtension(data));
}
} else if ("oldRowCount".equals(field)) {
int count = Integer.parseInt(value);
oldRows = new ArrayList<Row>(count);
for (int i = 0; i < count; i++) {
line = reader.readLine();
if (line != null) {
oldRows.add(Row.load(line, pool));
}
}
} else if ("newRowCount".equals(field)) {
int count = Integer.parseInt(value);
newRows = new ArrayList<Row>(count);
for (int i = 0; i < count; i++) {
line = reader.readLine();
if (line != null) {
newRows.add(Row.load(line, pool));
}
}
}
}
DBpediaDataExtensionChange change =
new DBpediaDataExtensionChange(
baseColumnName,
columnInsertIndex,
columnNames,
columnTypes,
rowIndices,
dataExtensions,
firstNewCellIndex,
oldRows,
newRows);
return change;
}
@Override
public void save(Writer writer, Properties options) throws IOException {
writer.write("baseColumnName=");
writer.write(_baseColumnName);
writer.write('\n');
writer.write("columnInsertIndex=");
writer.write(Integer.toString(_columnInsertIndex));
writer.write('\n');
writer.write("columnNameCount=");
writer.write(Integer.toString(_columnNames.size()));
writer.write('\n');
for (String name : _columnNames) {
writer.write(name);
writer.write('\n');
}
writer.write("columnTypeCount=");
writer.write(Integer.toString(_columnTypes.size()));
writer.write('\n');
for (DBpediaType type : _columnTypes) {
try {
JSONWriter jsonWriter = new JSONWriter(writer);
type.write(jsonWriter, options);
} catch (JSONException e) {
// ???
}
writer.write('\n');
}
writer.write("rowIndexCount=");
writer.write(Integer.toString(_rowIndices.size()));
writer.write('\n');
for (Integer rowIndex : _rowIndices) {
writer.write(rowIndex.toString());
writer.write('\n');
}
writer.write("dataExtensionCount=");
writer.write(Integer.toString(_dataExtensions.size()));
writer.write('\n');
for (DataExtension dataExtension : _dataExtensions) {
if (dataExtension == null) {
writer.write('\n');
continue;
}
writer.write(Integer.toString(dataExtension.data.length));
writer.write('\n');
for (Object[] values : dataExtension.data) {
for (Object value : values) {
if (value == null) {
writer.write("null");
} else if (value instanceof ReconCandidate) {
try {
JSONWriter jsonWriter = new JSONWriter(writer);
((ReconCandidate) value).write(jsonWriter, options);
} catch (JSONException e) {
// ???
}
} else if (value instanceof String) {
writer.write(JSONObject.quote((String) value));
} else {
writer.write(value.toString());
}
writer.write('\n');
}
}
}
writer.write("firstNewCellIndex=");
writer.write(Integer.toString(_firstNewCellIndex));
writer.write('\n');
writer.write("newRowCount=");
writer.write(Integer.toString(_newRows.size()));
writer.write('\n');
for (Row row : _newRows) {
row.save(writer, options);
writer.write('\n');
}
writer.write("oldRowCount=");
writer.write(Integer.toString(_oldRows.size()));
writer.write('\n');
for (Row row : _oldRows) {
row.save(writer, options);
writer.write('\n');
}
writer.write("/ec/\n"); // end of change marker
}
