| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.impl.io.URLStorageFactory |
| 4 | |
| 5 | Copyright 2004 The Apache Software Foundation or its licensors, as applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | 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 | */ |
| 20 | |
| 21 | package org.apache.derby.impl.io; |
| 22 | |
| 23 | import org.apache.derby.iapi.services.sanity.SanityManager; |
| 24 | |
| 25 | import org.apache.derby.io.StorageFactory; |
| 26 | import org.apache.derby.io.StorageFile; |
| 27 | |
| 28 | import java.io.FileNotFoundException; |
| 29 | import java.io.InputStream; |
| 30 | import java.io.OutputStream; |
| 31 | import java.io.IOException; |
| 32 | |
| 33 | /** |
| 34 | * This class provides a http based implementation of the StorageFactory interface. It is used by the |
| 35 | * database engine to access persistent data and transaction logs under the http and https subsubprotocols. |
| 36 | */ |
| 37 | |
| 38 | public class URLStorageFactory extends BaseStorageFactory |
| 39 | { |
| 40 | |
| 41 | /** |
| 42 | * Construct a persistent StorageFile from a path name. |
| 43 | * |
| 44 | * @param path The path name of the file |
| 45 | * |
| 46 | * @return A corresponding StorageFile object |
| 47 | */ |
| 48 | StorageFile newPersistentFile( String path) |
| 49 | { |
| 50 | return new URLFile( this, path); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Construct a StorageFile from a directory and file name. |
| 55 | * |
| 56 | * @param directoryName The directory part of the path name. Must not be null, nor may it be in the temp dir. |
| 57 | * @param fileName The name of the file within the directory. |
| 58 | * |
| 59 | * @return A corresponding StorageFile object |
| 60 | */ |
| 61 | StorageFile newPersistentFile( String directoryName, String fileName) |
| 62 | { |
| 63 | if( directoryName == null || directoryName.length() == 0) |
| 64 | return newPersistentFile( fileName); |
| 65 | return new URLFile( this, directoryName, fileName); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Construct a StorageFile from a directory and file name. |
| 70 | * |
| 71 | * @param directoryName The directory part of the path name. |
| 72 | * @param fileName The name of the file within the directory. |
| 73 | * |
| 74 | * @return A corresponding StorageFile object |
| 75 | */ |
| 76 | StorageFile newPersistentFile( StorageFile directoryName, String fileName) |
| 77 | { |
| 78 | if( directoryName == null) |
| 79 | return newPersistentFile( fileName); |
| 80 | return new URLFile( (URLFile) directoryName, fileName); |
| 81 | } |
| 82 | |
| 83 | void doInit() throws IOException |
| 84 | { |
| 85 | if( dataDirectory != null) |
| 86 | { |
| 87 | if( dataDirectory.endsWith( "/")) |
| 88 | { |
| 89 | separatedDataDirectory = dataDirectory; |
| 90 | dataDirectory = dataDirectory.substring( 0, dataDirectory.length() - 1); |
| 91 | } |
| 92 | else |
| 93 | separatedDataDirectory = dataDirectory + '/'; // URLs use '/' as a separator |
| 94 | canonicalName = dataDirectory; |
| 95 | createTempDir(); |
| 96 | } |
| 97 | } // end of doInit |
| 98 | } |