All Downloads are FREE. Search and download functionalities are using the official Maven repository.

com.rapiddweller.jdbacl.identity.xml.IdentityParser Maven / Gradle / Ivy

Go to download

'jdbacl' stands for 'Java DataBase ACcess Layer' and provides utilities for accessing JDBC databases from Java programs, retrieving meta information in an object model and querying database data. 'rapiddweller jdbacl' is forked from Databene jdbacl by Volker Bergmann.

There is a newer version: 1.1.17-jdk-11
Show newest version
/*
 * (c) Copyright 2010-2011 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package com.rapiddweller.jdbacl.identity.xml;

import com.rapiddweller.common.CollectionUtil;
import com.rapiddweller.common.ConfigurationError;
import com.rapiddweller.common.StringUtil;
import com.rapiddweller.common.xml.XMLUtil;
import com.rapiddweller.format.xml.AbstractXMLElementParser;
import com.rapiddweller.format.xml.ParseContext;
import com.rapiddweller.jdbacl.identity.IdentityModel;
import com.rapiddweller.jdbacl.identity.IdentityProvider;
import com.rapiddweller.jdbacl.identity.NaturalPkIdentity;
import com.rapiddweller.jdbacl.identity.NkPkQueryIdentity;
import com.rapiddweller.jdbacl.identity.SubNkPkQueryIdentity;
import com.rapiddweller.jdbacl.identity.UniqueKeyIdentity;
import org.w3c.dom.Element;

import java.util.Set;

/**
 * Parses an <identity> element in a DB Sanity XML file.


 * Created: 05.12.2010 14:39:48
 *
 * @author Volker Bergmann
 * @since 0.7.1
 */
public class IdentityParser extends AbstractXMLElementParser {

  /**
   * The constant IDENTITY.
   */
  public static final String IDENTITY = "identity";
  /**
   * The constant REQUIRED_ATTRIBUTES.
   */
  public static final Set REQUIRED_ATTRIBUTES = CollectionUtil.toSet("type", "table");
  /**
   * The constant OPTIONAL_ATTRIBUTES.
   */
  public static final Set OPTIONAL_ATTRIBUTES =
      CollectionUtil.toSet("nk-pk-query", "sub-nk-pk-query", "parents", "unique-key", "natural-pk", "columns");

  /**
   * Instantiates a new Identity parser.
   */
  public IdentityParser() {
    super(IDENTITY, REQUIRED_ATTRIBUTES, OPTIONAL_ATTRIBUTES, Object.class);
  }

  @Override
  public IdentityModel doParse(Element element, Object[] parentPath, ParseContext context) {
    String type = getRequiredAttribute("type", element);
    String tableName = getRequiredAttribute("table", element);

    IdentityModel identity;
    IdentityProvider identityProvider = ((IdentityParseContext) context).getIdentityProvider();
    if ("nk-pk-query".equals(type)) {
      identity = parseNkPkQuery(element, tableName);
    } else if ("sub-nk-pk-query".equals(type)) {
      identity = parseSubNkPkQuery(element, identityProvider, tableName);
    } else if ("unique-key".equals(type)) {
      identity = parseUniqueKey(element, tableName);
    } else if ("natural-pk".equals(type)) {
      identity = parseNaturalPk(element, tableName);
    } else {
      throw new ConfigurationError("Not a supported  type: " + type);
    }
    identityProvider.registerIdentity(identity, identity.getTableName());
    return identity;
  }

  /**
   * Create check name string.
   *
   * @param tableName the table name
   * @param type      the type
   * @return the string
   */
  public static String createCheckName(String tableName, String type) {
    return tableName + "-identity-" + type;
  }

  // private helpers -------------------------------------------------------------------------------------------------

  private static IdentityModel parseNkPkQuery(Element element, String tableName) {
    String nkPkQuery = XMLUtil.getWholeText(element);
    return new NkPkQueryIdentity(tableName, nkPkQuery);
  }

  private static IdentityModel parseNaturalPk(Element element, String tableName) {
    return new NaturalPkIdentity(tableName);
  }

  private IdentityModel parseUniqueKey(Element element, String tableName) {
    String[] columnNames = getRequiredAttribute("columns", element).split(",");
    columnNames = StringUtil.trimAll(columnNames);
    return new UniqueKeyIdentity(tableName, columnNames);
  }

  private IdentityModel parseSubNkPkQuery(Element element, IdentityProvider identityProvider, String tableName) {
    String[] parentTableNames = getRequiredAttribute("parents", element).split(",");
    SubNkPkQueryIdentity identity = new SubNkPkQueryIdentity(tableName, parentTableNames, identityProvider);
    identity.setSubNkPkQuery(XMLUtil.getWholeText(element));
    return identity;
  }

}
    

    

    

            

    

            



    
    






    
© 2015 - 2024 Weber Informatics LLC | Privacy Policy