Source Code Cross Referenced for SQLExceptionFactory.java in  » Database-JDBC-Connection-Pool » sequoia-2.10.9 » org » continuent » sequoia » common » exceptions » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database JDBC Connection Pool » sequoia 2.10.9 » org.continuent.sequoia.common.exceptions 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /**
02:         * Sequoia: Database clustering technology.
03:         * Copyright (C) 2002-2004 French National Institute For Research In Computer
04:         * Science And Control (INRIA).
05:         * Contact: sequoia@continuent.org
06:         * 
07:         * Licensed under the Apache License, Version 2.0 (the "License");
08:         * you may not use this file except in compliance with the License.
09:         * You may obtain a copy of the License at
10:         * 
11:         * http://www.apache.org/licenses/LICENSE-2.0
12:         * 
13:         * Unless required by applicable law or agreed to in writing, software
14:         * distributed under the License is distributed on an "AS IS" BASIS,
15:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16:         * See the License for the specific language governing permissions and
17:         * limitations under the License. 
18:         *
19:         * Initial developer(s): Marc Wick.
20:         * Contributor(s): ______________________.
21:         */package org.continuent.sequoia.common.exceptions;
22:
23:        import java.sql.SQLException;
24:        import java.util.Iterator;
25:        import java.util.List;
26:
27:        /**
28:         * This class defines a SQLExceptionFactory
29:         * 
30:         * @author <a href="mailto:marc.wick@monte-bre.ch">Marc Wick </a>
31:         * @version 1.0
32:         */
33:        public class SQLExceptionFactory {
34:
35:            /**
36:             * creates a new SQLException with the sequoiaMessage
37:             * 
38:             * @param sqlEx the original exception
39:             * @param sequoiaMessage the sequoia message to use for the new sqlexception
40:             * @return a new SQLException
41:             */
42:            public static SQLException getSQLException(SQLException sqlEx,
43:                    String sequoiaMessage) {
44:                SQLException newException = new SQLException(sequoiaMessage,
45:                        sqlEx.getSQLState(), sqlEx.getErrorCode());
46:                // TODO: shouldn't we use the new initCause() standard chaining instead ?
47:                // if we move to a new "SyntheticSQLException" type we will have to do
48:                // it anyway.
49:                // See also same issue below.
50:                newException.setNextException(sqlEx);
51:                return newException;
52:            }
53:
54:            /**
55:             * creates a new SQLException with the sequoiaMessage, if all exceptions in
56:             * the list have the same errorcode and sqlstate the returned SQLExcepion will
57:             * be constructed with this values otherwise with null and 0
58:             * 
59:             * @param exceptions list of exceptions
60:             * @param sequoiaMessage the Sequoia message
61:             * @return a new SQLException
62:             */
63:            public static SQLException getSQLException(List exceptions,
64:                    String sequoiaMessage) {
65:                String sqlState = null;
66:                int errorCode = 0;
67:                for (int i = 0; i < exceptions.size(); i++) {
68:                    SQLException ex = (SQLException) exceptions.get(i);
69:                    if (ex == null)
70:                        continue;
71:                    sequoiaMessage += ex.getMessage() + "\n";
72:                    if (sqlState == null) {
73:                        // first exception
74:                        sqlState = ex.getSQLState();
75:                        errorCode = ex.getErrorCode();
76:                    }
77:                    // We ignore if backend reports different SQL states or error codes. We
78:                    // report the error of the first backend that failed. Details can be
79:                    // retrieved for each backend in the exception chaining below.
80:                }
81:                SQLException newHead = new SQLException(sequoiaMessage,
82:                        sqlState, errorCode);
83:                Iterator exIter = exceptions.iterator();
84:
85:                // TODO: shouldn't we use the new initCause() standard chaining instead ?
86:                // See more comments above.
87:                while (exIter.hasNext())
88:                    newHead.setNextException((SQLException) exIter.next());
89:
90:                return newHead;
91:            }
92:
93:        }
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