001 /* 002 * Copyright (C) 2003-2009 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 package org.crsh.util; 020 021 import java.io.Closeable; 022 import java.io.IOException; 023 import java.net.Socket; 024 import java.sql.Connection; 025 import java.sql.ResultSet; 026 import java.sql.SQLException; 027 import java.sql.Statement; 028 029 /** 030 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> 031 * @version $Revision$ 032 */ 033 public class Safe { 034 035 public static void close(Socket socket) { 036 if (socket != null) { 037 try { 038 socket.close(); 039 } 040 catch (IOException ignore) { 041 } 042 } 043 } 044 045 public static void close(Closeable closeable) { 046 if (closeable != null) { 047 try { 048 closeable.close(); 049 } 050 catch (IOException ignore) { 051 } 052 } 053 } 054 055 public static void close(Connection connection) { 056 if (connection != null) { 057 try { 058 connection.close(); 059 } 060 catch (SQLException ignore) { 061 } 062 } 063 } 064 065 public static void close(Statement statement) { 066 if (statement != null) { 067 try { 068 statement.close(); 069 } 070 catch (SQLException ignore) { 071 } 072 } 073 } 074 075 public static void close(ResultSet rs) { 076 if (rs != null) { 077 try { 078 rs.close(); 079 } 080 catch (SQLException ignore) { 081 } 082 } 083 } 084 085 public static <T extends Throwable> void rethrow(Class<T> throwableClass, Throwable cause) throws T { 086 T throwable; 087 088 // 089 try { 090 throwable = throwableClass.newInstance(); 091 } 092 catch (Exception e) { 093 throw new AssertionError(e); 094 } 095 096 // 097 throwable.initCause(cause); 098 099 // 100 throw throwable; 101 } 102 }