package org.dbunit.assertion.comparer.value;
   
   import static org.junit.jupiter.api.Assertions.assertNotNull;
   
   import java.util.Map;
   
   import org.dbunit.DatabaseUnitException;
   import org.dbunit.dataset.ITable;
   import org.dbunit.dataset.datatype.DataType;
  
  /**
   * Use a {@link ValueComparerSelector} to select a {@link ValueComparer} for the
   * column from a {@link Map} of them.
   *
   * @author Jeff Jensen
   * @since 2.6.0
   */
  public class ConditionalSelectorMultiValueComparer extends ValueComparerBase
  {
      private final ValueComparerSelector valueComparerSelector;
      private final Map<Object, ValueComparer> valueComparers;
  
      public ConditionalSelectorMultiValueComparer(final Map<Object, ValueComparer> valueComparers,
              final ValueComparerSelector valueComparerSelector) {
          assertNotNull(valueComparerSelector, "valueComparerSelector is null.");
          assertNotNull(valueComparers, "valueComparers is null.");
  
          this.valueComparerSelector = valueComparerSelector;
          this.valueComparers = valueComparers;
      }
  
      @Override
      public String doCompare(final ITable expectedTable,
              final ITable actualTable, final int rowNum, final String columnName,
              final DataType dataType, final Object expectedValue,
              final Object actualValue) throws DatabaseUnitException
      {
          final ValueComparer valueComparer = valueComparerSelector.select(
                  expectedTable, actualTable, rowNum, columnName, dataType,
                  expectedValue, actualValue, valueComparers);
          if (valueComparer == null)
          {
              final String msg =
                      "No ValueComparer found by valueComparerSelector="
                              + valueComparerSelector + " in map="
                              + valueComparers;
              throw new IllegalStateException(msg);
          }
  
          return valueComparer.compare(expectedTable, actualTable, rowNum,
                  columnName, dataType, expectedValue, actualValue);
      }
  
      @Override
      public String toString()
      {
          final StringBuilder sb = new StringBuilder(400);
          sb.append(super.toString());
          sb.append(": [valueComparerSelector=");
          sb.append(valueComparerSelector.getClass().getName());
          sb.append(", inValuesValueComparer=");
          sb.append(valueComparers);
          sb.append("]");
  
          return sb.toString();
      }
  }