HHH-8319

Conflicts:
	hibernate-core/src/main/java/org/hibernate/dialect/MySQL5Dialect.java

Author: justinsubert

hibernate-core/src/main/java/org/hibernate/dialect/MySQL5Dialect.java

@@ -22,8 +22,14 @@
  * Boston, MA  02110-1301  USA
  */
 package org.hibernate.dialect;
+
+import java.sql.SQLException;
 import java.sql.Types;
 
+import org.hibernate.exception.spi.TemplatedViolatedConstraintNameExtracter;
+import org.hibernate.exception.spi.ViolatedConstraintNameExtracter;
+import org.hibernate.internal.util.JdbcExceptionHelper;
+
 /**
  * An SQL dialect for MySQL 5.x specific features.
  *
@@ -46,4 +52,27 @@ protected void registerVarcharTypes() {
 	public boolean supportsColumnCheck() {
 		return false;
 	}
+	
+	public ViolatedConstraintNameExtracter getViolatedConstraintNameExtracter() {
+		return EXTRACTER;
+	}
+
+	private static ViolatedConstraintNameExtracter EXTRACTER = new TemplatedViolatedConstraintNameExtracter() {
+
+		public String extractConstraintName(SQLException sqle) {
+			try {
+				int sqlState = Integer.valueOf( JdbcExceptionHelper.extractSqlState( sqle ) ).intValue();
+				switch ( sqlState ) {
+					case 23000:
+						return extractUsingTemplate( " for key '", "'", sqle.getMessage() );
+					default:
+						return null;
+				}
+			}
+			catch (NumberFormatException nfe) {
+				return null;
+			}
+		}
+	};
+
 }