connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeLibraries.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18
  19 package com.sun.star.sdbcx.comp.hsqldb;
  20
  21 import java.io.File;
  22 import java.net.URL;
  23 import java.net.URLClassLoader;
  24
  25 final class NativeLibraries {
  26     public static void load() {
  27         if (System.getProperty( "os.name" ).startsWith("Windows")) {
  28             loadLibrary("msvcr71");
  29             loadLibrary("sal3");
  30             loadLibrary("dbtoolsmi");
  31         }
  32         loadLibrary("hsqldb");
  33     }
  34
  35     private static void loadLibrary(String libname) {
  36         // At least on macOS Tiger, System.loadLibrary("hsqldb2") does not
  37         // find the hsqldb2 library one directory above sdbc_hsqldb.jar, even
  38         // though ".." is on the jar's Class-Path; however, the alternative
  39         // code (needing Java 1.5, which is given for macOS Tiger) works
  40         // there:
  41         try {
  42             System.loadLibrary(libname);
  43         } catch (UnsatisfiedLinkError e) {
  44             ClassLoader cl = NativeLibraries.class.getClassLoader();
  45             if (cl instanceof URLClassLoader) {
  46                 String sysname = System.mapLibraryName(libname);
  47                 // At least Oracle's 1.7.0_51 now maps to .dylib rather than
  48                 // .jnilib:
  49                 if (System.getProperty("os.name").startsWith("Mac")
  50                     && sysname.endsWith(".dylib"))
  51                 {
  52                     sysname
  53                         = sysname.substring(
  54                             0, sysname.length() - "dylib".length())
  55                         + "jnilib";
  56                 }
  57                 URL url = ((URLClassLoader) cl).findResource(sysname);
  58                 if (url != null) {
  59                     try {
  60                         System.load(new File(url.toURI()).getAbsolutePath());
  61                     } catch (Throwable t) {
  62                         throw new UnsatisfiedLinkError(
  63                             e.toString()+ " - " + t.toString());
  64                     }
  65                 }
  66             }
  67         }
  68     }
  69
  70     private NativeLibraries() {}
  71 }