Package org.hibernate.exception.internal

Source Code of org.hibernate.exception.internal.SQLStateConversionDelegate

/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2012, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors.  All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA  02110-1301  USA
*/
package org.hibernate.exception.internal;

import java.sql.SQLException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import org.hibernate.JDBCException;
import org.hibernate.PessimisticLockException;
import org.hibernate.QueryTimeoutException;
import org.hibernate.exception.ConstraintViolationException;
import org.hibernate.exception.DataException;
import org.hibernate.exception.JDBCConnectionException;
import org.hibernate.exception.LockAcquisitionException;
import org.hibernate.exception.SQLGrammarException;
import org.hibernate.exception.spi.AbstractSQLExceptionConversionDelegate;
import org.hibernate.exception.spi.ConversionContext;
import org.hibernate.internal.util.JdbcExceptionHelper;

/**
* A SQLExceptionConverter implementation which performs conversion based on the underlying SQLState.
* Interpretation of a SQL error based on SQLState is not nearly as accurate as using the ErrorCode (which is,
* however, vendor-specific).
*
* SQLState codes are defined by both ANSI SQL specs and X/Open.  Some of the "classes" are shared, others are
* specific to one or another, yet others are custom vendor classes.  Unfortunately I have not been able to
* find a "blessed" list of X/Open codes.  These codes are cobbled together between ANSI SQL spec and error
* code tables from few vendors documentation.
*
* @author Steve Ebersole
*/
public class SQLStateConversionDelegate extends AbstractSQLExceptionConversionDelegate {

  private static final Set<String> SQL_GRAMMAR_CATEGORIES = buildGrammarCategories();
  private static Set<String> buildGrammarCategories() {
    HashSet<String> categories = new HashSet<String>();
    categories.addAll(
        Arrays.asList(
            "07",   // "dynamic SQL error"
            "20",
            "2A",   // "direct SQL syntax error or access rule violation"
            "37"// "dynamic SQL syntax error or access rule violation"
            "42"// "syntax error or access rule violation"
            "65"// Oracle specific as far as I can tell
            "S0"  // MySQL specific as far as I can tell
        )
    );
    return Collections.unmodifiableSet( categories );
  }

  private static final Set DATA_CATEGORIES = buildDataCategories();
  private static Set<String> buildDataCategories() {
    HashSet<String> categories = new HashSet<String>();
    categories.addAll(
        Arrays.asList(
            "21"// "cardinality violation"
            "22"  // "data exception"
        )
    );
    return Collections.unmodifiableSet( categories );
  }

  private static final Set INTEGRITY_VIOLATION_CATEGORIES = buildContraintCategories();
  private static Set<String> buildContraintCategories() {
    HashSet<String> categories = new HashSet<String>();
    categories.addAll(
        Arrays.asList(
            "23"// "integrity constraint violation"
            "27"// "triggered data change violation"
            "44"  // "with check option violation"
        )
    );
    return Collections.unmodifiableSet( categories );
  }

  private static final Set CONNECTION_CATEGORIES = buildConnectionCategories();
  private static Set<String> buildConnectionCategories() {
    HashSet<String> categories = new HashSet<String>();
    categories.add(
        "08"  // "connection exception"
    );
    return Collections.unmodifiableSet( categories );
  }

  public SQLStateConversionDelegate(ConversionContext conversionContext) {
    super( conversionContext );
  }

  @Override
  public JDBCException convert(SQLException sqlException, String message, String sql) {
    final String sqlState = JdbcExceptionHelper.extractSqlState( sqlException );
    final int errorCode = JdbcExceptionHelper.extractErrorCode( sqlException );

    if ( sqlState != null ) {
      String sqlStateClassCode = JdbcExceptionHelper.determineSqlStateClassCode( sqlState );

      if ( sqlStateClassCode != null ) {
        if ( SQL_GRAMMAR_CATEGORIES.contains( sqlStateClassCode ) ) {
          return new SQLGrammarException( message, sqlException, sql );
        }
        else if ( INTEGRITY_VIOLATION_CATEGORIES.contains( sqlStateClassCode ) ) {
          final String constraintName = getConversionContext()
              .getViolatedConstraintNameExtracter()
              .extractConstraintName( sqlException );
          return new ConstraintViolationException( message, sqlException, sql, constraintName );
        }
        else if ( CONNECTION_CATEGORIES.contains( sqlStateClassCode ) ) {
          return new JDBCConnectionException( message, sqlException, sql );
        }
        else if ( DATA_CATEGORIES.contains( sqlStateClassCode ) ) {
          return new DataException( message, sqlException, sql );
        }
      }

      if ( "40001".equals( sqlState ) ) {
        return new LockAcquisitionException( message, sqlException, sql );
      }

      if ( "40XL1".equals( sqlState ) || "40XL2".equals( sqlState )) {
        // Derby "A lock could not be obtained within the time requested."
        return new PessimisticLockException( message, sqlException, sql );
      }

      // MySQL Query execution was interrupted
      if ( "70100".equals( sqlState ) ||
          // Oracle user requested cancel of current operation
          ( "72000".equals( sqlState ) && errorCode == 1013 ) ) {
        throw new QueryTimeoutExceptionmessage, sqlException, sql );
      }
    }

    return null;
  }
}
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