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package cucumber.api;
import cucumber.runtime.CucumberException;
import cucumber.runtime.ParameterInfo;
import cucumber.runtime.table.DiffableRow;
import cucumber.runtime.table.TableConverter;
import cucumber.runtime.table.TableDiffException;
import cucumber.runtime.table.TableDiffer;
import cucumber.runtime.xstream.LocalizedXStreams;
import gherkin.formatter.PrettyFormatter;
import gherkin.formatter.model.DataTableRow;
import gherkin.formatter.model.Row;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Map;
/**
* Represents the data from a Gherkin DataTable. Cucumber will convert the table in Gherkin
* to a DataTable instance and pass it to a step definition.
*/
public class DataTable {
private final List> raw;
private final List gherkinRows;
private final TableConverter tableConverter;
public static DataTable create(List raw) {
return create(raw, Locale.getDefault(), null, new String[0]);
}
public static DataTable create(List raw, String format, String... columnNames) {
return create(raw, Locale.getDefault(), format, columnNames);
}
public static DataTable create(List raw, Locale locale, String... columnNames) {
return create(raw, locale, null, columnNames);
}
private static DataTable create(List raw, Locale locale, String format, String... columnNames) {
ParameterInfo parameterInfo = new ParameterInfo(null, format, null, null);
TableConverter tableConverter = new TableConverter(new LocalizedXStreams(Thread.currentThread().getContextClassLoader()).get(locale), parameterInfo);
return tableConverter.toTable(raw, columnNames);
}
/**
* Creates a new DataTable. This constructor should not be called by Cucumber users - it's used internally only.
*
* @param gherkinRows the underlying rows.
* @param tableConverter how to convert the rows.
*/
public DataTable(List gherkinRows, TableConverter tableConverter) {
this.gherkinRows = gherkinRows;
this.tableConverter = tableConverter;
int columns = gherkinRows.isEmpty() ? 0 : gherkinRows.get(0).getCells().size();
List> raw = new ArrayList>();
for (Row row : gherkinRows) {
List list = new ArrayList();
list.addAll(row.getCells());
if (columns != row.getCells().size()) {
throw new CucumberException(String.format("Table is unbalanced: expected %s column(s) but found %s.", columns, row.getCells().size()));
}
raw.add(Collections.unmodifiableList(list));
}
this.raw = Collections.unmodifiableList(raw);
}
private DataTable(List gherkinRows, List> raw, TableConverter tableConverter) {
this.gherkinRows = gherkinRows;
this.tableConverter = tableConverter;
this.raw = Collections.unmodifiableList(raw);
}
/**
* @return a List of List of String.
*/
public List> raw() {
return this.raw;
}
/**
* Converts the table to a List of Map. The top row is used as keys in the maps,
* and the rows below are used as values.
*
* @param key type
* @param value type
* @param keyType key type
* @param valueType value type
*
* @return a List of Map.
*/
public List> asMaps(Class keyType, Class valueType) {
return tableConverter.toMaps(this, keyType, valueType);
}
/**
* Converts the table to a single Map. The left column is used as keys, the right column as values.
*
* @param key type
* @param value type
* @param keyType key type
* @param valueType value type
* @return a Map.
* @throws cucumber.runtime.CucumberException if the table doesn't have 2 columns.
*/
public Map asMap(Class keyType, Class valueType) {
return tableConverter.toMap(this, keyType, valueType);
}
/**
* Converts the table to a List.
*
* If {@code itemType} is a scalar type the table is flattened.
*
* Otherwise, the top row is used to name the fields/properties and the remaining
* rows are turned into list items.
*
* @param itemType the type of the list items
* @param the type of the list items
* @return a List of objects
*/
public List asList(Class itemType) {
return tableConverter.toList(this, itemType);
}
/**
* Converts the table to a List of List of scalar.
*
* @param itemType the type of the list items
* @param the type of the list items
* @return a List of List of objects
*/
public List> asLists(Class itemType) {
return tableConverter.toLists(this, itemType);
}
public List topCells() {
return raw.isEmpty() ? Collections.emptyList() : raw.get(0);
}
public List> cells(int firstRow) {
return raw.subList(firstRow, raw.size());
}
/**
* Creates another table using the same {@link Locale} and {@link Format} that was used to create this table.
*
* @param raw a list of objects
* @param columnNames optional explicit header columns
* @return a new table
*/
public DataTable toTable(List raw, String... columnNames) {
return tableConverter.toTable(raw, columnNames);
}
/**
* Diffs this table with {@code other}, which can be a {@code List<List<String>>} or a
* {@code List<YourType>}.
*
* @param other the other table to diff with.
* @throws cucumber.runtime.table.TableDiffException if the tables are different.
*/
public void diff(List other) throws TableDiffException {
List topCells = topCells();
DataTable otherTable = toTable(other, topCells.toArray(new String[topCells.size()]));
diff(otherTable);
}
/**
* Diffs this table with {@code other}.
*
* @param other the other table to diff with.
* @throws TableDiffException if the tables are different.
*/
public void diff(DataTable other) throws TableDiffException {
new TableDiffer(this, other).calculateDiffs();
}
/**
* Diffs this table with {@code other}.
* The order is not important. A set-difference is applied.
* @param other the other table to diff with.
* @throws TableDiffException if the tables are different.
*/
public void unorderedDiff(DataTable other) throws TableDiffException {
new TableDiffer(this, other).calculateUnorderedDiffs();
}
/**
* Diffs this table with {@code other}, which can be a {@code List<List<String>>} or a
* {@code List<YourType>}.
*
* @param other the other table to diff with.
* @throws cucumber.runtime.table.TableDiffException if the tables are different.
*/
public void unorderedDiff(List other) throws TableDiffException {
List topCells = topCells();
DataTable otherTable = toTable(other, topCells.toArray(new String[topCells.size()]));
unorderedDiff(otherTable);
}
/**
* Internal method. Do not use.
*
* @return a list of raw rows.
*/
public List getGherkinRows() {
return Collections.unmodifiableList(gherkinRows);
}
@Override
public String toString() {
StringBuilder result = new StringBuilder();
PrettyFormatter pf = new PrettyFormatter(result, true, false);
pf.table(getGherkinRows());
pf.eof();
return result.toString();
}
public List diffableRows() {
List result = new ArrayList();
List> convertedRows = raw();
for (int i = 0; i < convertedRows.size(); i++) {
result.add(new DiffableRow(getGherkinRows().get(i), convertedRows.get(i)));
}
return result;
}
public TableConverter getTableConverter() {
return tableConverter;
}
public DataTable transpose() {
List> transposed = new ArrayList>();
for (int i = 0; i < gherkinRows.size(); i++) {
Row gherkinRow = gherkinRows.get(i);
for (int j = 0; j < gherkinRow.getCells().size(); j++) {
List row = null;
if (j < transposed.size()) {
row = transposed.get(j);
}
if (row == null) {
row = new ArrayList();
transposed.add(row);
}
row.add(gherkinRow.getCells().get(j));
}
}
return new DataTable(this.gherkinRows, transposed, this.tableConverter);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof DataTable)) return false;
DataTable dataTable = (DataTable) o;
if (!raw.equals(dataTable.raw)) return false;
return true;
}
@Override
public int hashCode() {
return raw.hashCode();
}
}
