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   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
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  package org.apache.cayenne.access.dbsync;
  
  import org.apache.cayenne.CayenneRuntimeException;
  import org.apache.cayenne.access.DataNode;
  import org.apache.cayenne.access.DbGenerator;
  import org.apache.cayenne.map.DataMap;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.sql.SQLException;
  import java.util.Collection;
  import java.util.Iterator;
  import java.util.List;
  
  /**
   * @since 3.0
   */
  public class ThrowOnPartialOrCreateSchemaStrategy extends ThrowOnPartialSchemaStrategy {
  
      private final static Logger LOGGER = LoggerFactory.getLogger(ThrowOnPartialOrCreateSchemaStrategy.class);
  
  
      @Override
      protected void processSchemaUpdate(
              DataNode dataNode,
              List<String> mergerOnlyTable,
              String errorMessage,
              int entitiesSize) throws SQLException {
  
          if (mergerOnlyTable.size() == 0 && errorMessage == null) {
              LOGGER.info("Full schema is present");
          }
          else if (mergerOnlyTable.size() == entitiesSize) {
              LOGGER.info("No schema detected, will create mapped tables");
              generate(dataNode);
          }
          else {
              LOGGER.info("Error - partial schema detected");
  
              StringBuilder buffer = new StringBuilder("Schema mismatch detected");
  
              if (errorMessage != null) {
                  buffer.append(": ").append(errorMessage);
              }
              else {
                  if (mergerOnlyTable.size() > 0) {
                      buffer
                              .append(": missing table '")
                              .append(mergerOnlyTable.get(0))
                              .append('\'');
                  }
              }
  
              throw new CayenneRuntimeException(buffer.toString());
          }
      }
  
      private void generate(DataNode dataNode) {
          Collection<DataMap> map = dataNode.getDataMaps();
          Iterator<DataMap> iterator = map.iterator();
          while (iterator.hasNext()) {
              DbGenerator gen = new DbGenerator(dataNode.getAdapter(), iterator.next(), 
                      dataNode.getJdbcEventLogger());
              gen.setShouldCreateTables(true);
              gen.setShouldDropTables(false);
              gen.setShouldCreateFKConstraints(false);
              gen.setShouldCreatePKSupport(false);
              gen.setShouldDropPKSupport(false);
              try {
                  gen.runGenerator(dataNode.getDataSource());
              }
              catch (Exception e) {
                  throw new CayenneRuntimeException(e);
              }
          }
      }
  
  }
  