connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageFileAccess.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 package com.sun.star.sdbcx.comp.hsqldb;
  19
  20 import org.hsqldb.lib.FileAccess;
  21 import org.hsqldb.lib.FileSystemRuntimeException;
  22
  23 @SuppressWarnings("ucd")
  24 public class StorageFileAccess implements org.hsqldb.lib.FileAccess{
  25     static { NativeLibraries.load(); }
  26
  27     String ds_name;
  28     String key;
  29     /** Creates a new instance of StorageFileAccess */
  30     public StorageFileAccess(Object key) throws java.lang.Exception{
  31         this.key = (String)key;
  32     }
  33
  34     public void createParentDirs(String filename) {
  35     }
  36
  37     public boolean isStreamElement(String elementName)  {
  38         return isStreamElement(key,elementName);
  39     }
  40
  41     public java.io.InputStream openInputStreamElement(String streamName) throws java.io.IOException {
  42         return new NativeInputStreamHelper(key,streamName);
  43     }
  44
  45     public java.io.OutputStream openOutputStreamElement(String streamName) throws java.io.IOException {
  46         return new NativeOutputStreamHelper(key,streamName);
  47     }
  48
  49     public void removeElement(String filename) throws java.util.NoSuchElementException {
  50         try {
  51             if ( isStreamElement(key,filename) )
  52                 removeElement(key,filename);
  53         } catch (java.io.IOException e) {
  54            throw new FileSystemRuntimeException( e );
  55        }
  56     }
  57
  58     public void renameElement(String oldName, String newName) throws java.util.NoSuchElementException {
  59         try {
  60             if ( isStreamElement(key,oldName) ){
  61                 removeElement(key,newName);
  62                 renameElement(key,oldName, newName);
  63             }
  64        } catch (java.io.IOException e) {
  65            throw new FileSystemRuntimeException( e );
  66        }
  67     }
  68
  69     private static class FileSync implements FileAccess.FileSync
  70     {
  71         private final NativeOutputStreamHelper os;
  72         private FileSync(NativeOutputStreamHelper _os)
  73         {
  74             os = _os;
  75         }
  76         public void sync() throws java.io.IOException
  77         {
  78             os.sync();
  79         }
  80     }
  81
  82     public FileAccess.FileSync getFileSync(java.io.OutputStream os) throws java.io.IOException
  83     {
  84         return new FileSync((NativeOutputStreamHelper)os);
  85     }
  86
  87     static native boolean isStreamElement(String key,String elementName);
  88     static native void removeElement(String key,String filename) throws java.util.NoSuchElementException, java.io.IOException;
  89     static native void renameElement(String key,String oldName, String newName) throws java.util.NoSuchElementException, java.io.IOException;
  90 }