| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * 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 |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.shiro.util; |
| |
| import java.sql.Connection; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * A set of static helper methods for managing JDBC API objects. |
| * <p/> |
| * <em>Note:</em> Some parts of this class were copied from the Spring Framework and then modified. |
| * They were copied here to prevent Spring dependencies in the Shiro core API. The original license conditions |
| * (Apache 2.0) have been maintained. |
| * |
| * @since 0.2 |
| */ |
| public class JdbcUtils { |
| |
| /** Private internal log instance. */ |
| private static final Logger log = LoggerFactory.getLogger(JdbcUtils.class); |
| |
| /** |
| * Private constructor to prevent instantiation. |
| */ |
| private JdbcUtils() { |
| } |
| |
| /** |
| * Close the given JDBC Connection and ignore any thrown exception. |
| * This is useful for typical finally blocks in manual JDBC code. |
| * |
| * @param connection the JDBC Connection to close (may be <tt>null</tt>) |
| */ |
| public static void closeConnection(Connection connection) { |
| if (connection != null) { |
| try { |
| connection.close(); |
| } catch (SQLException ex) { |
| if (log.isDebugEnabled()) { |
| log.debug("Could not close JDBC Connection", ex); |
| } |
| } catch (Throwable ex) { |
| if (log.isDebugEnabled()) { |
| log.debug("Unexpected exception on closing JDBC Connection", ex); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Close the given JDBC Statement and ignore any thrown exception. |
| * This is useful for typical finally blocks in manual JDBC code. |
| * |
| * @param statement the JDBC Statement to close (may be <tt>null</tt>) |
| */ |
| public static void closeStatement(Statement statement) { |
| if (statement != null) { |
| try { |
| statement.close(); |
| } catch (SQLException ex) { |
| if (log.isDebugEnabled()) { |
| log.debug("Could not close JDBC Statement", ex); |
| } |
| } catch (Throwable ex) { |
| if (log.isDebugEnabled()) { |
| log.debug("Unexpected exception on closing JDBC Statement", ex); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Close the given JDBC ResultSet and ignore any thrown exception. |
| * This is useful for typical finally blocks in manual JDBC code. |
| * |
| * @param rs the JDBC ResultSet to close (may be <tt>null</tt>) |
| */ |
| public static void closeResultSet(ResultSet rs) { |
| if (rs != null) { |
| try { |
| rs.close(); |
| } catch (SQLException ex) { |
| if (log.isDebugEnabled()) { |
| log.debug("Could not close JDBC ResultSet", ex); |
| } |
| } catch (Throwable ex) { |
| if (log.isDebugEnabled()) { |
| log.debug("Unexpected exception on closing JDBC ResultSet", ex); |
| } |
| } |
| } |
| } |
| |
| } |