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/*
 * #%L
 * anwiba commons advanced
 * %%
 * Copyright (C) 2007 - 2016 Andreas Bartels
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 2.1 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */
package net.anwiba.commons.jdbc.constraint;

import net.anwiba.commons.lang.functional.IAcceptor;
import net.anwiba.commons.utilities.collection.IterableUtilities;

import java.util.Arrays;
import java.util.List;
import java.util.Map;

public class ConstraintsUtilities {

  public static boolean isPrimaryKey(final Map constraints, final String columnName) {
    for (final Constraint constraint : constraints.values()) {
      if (constraint.isPrimaryKey() && constraint.contains(columnName)) {
        return true;
      }
    }
    return false;
  }

  public static Constraint[] getColumnConstaints(final String columnName, final Map constraints) {
    final List columnConstraints =
        IterableUtilities.asList(constraints.values(), new IAcceptor() {

          @Override
          public boolean accept(final Constraint constraint) {
            return constraint.contains(columnName);
          }
        });
    return columnConstraints.toArray(new Constraint[columnConstraints.size()]);
  }

  public static boolean containsBooleanConstraints(final String name, final Constraint[] constraints) {
    return IterableUtilities.containsAcceptedItems(Arrays.asList(constraints), new IAcceptor() {

      @Override
      public boolean accept(final Constraint constraint) {
        return constraint.getCondition() != null && constraint.getCondition().equals(name + " IN (0,1)"); //$NON-NLS-1$
      }
    });
  }

}