1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.jci.readers;
19
20 import java.io.File;
21 import java.util.ArrayList;
22 import java.util.List;
23
24 import org.apache.commons.io.FileUtils;
25
26 /**
27 * A simple file system based Reader implementation
28 *
29 * @author tcurdt
30 */
31 public final class FileResourceReader implements ResourceReader {
32
33 private final File root;
34
35 public FileResourceReader( final File pRoot ) {
36 root = pRoot;
37 }
38
39 public boolean isAvailable( final String pResourceName ) {
40 return new File(root, pResourceName).exists();
41 }
42
43 public byte[] getBytes( final String pResourceName ) {
44 try {
45 return FileUtils.readFileToString(new File(root, pResourceName), "UTF-8").getBytes();
46 } catch(Exception e) {
47 return null;
48 }
49 }
50
51 /**
52 * @deprecated
53 */
54 public String[] list() {
55 final List files = new ArrayList();
56 list(root, files);
57 return (String[]) files.toArray(new String[files.size()]);
58 }
59
60 /**
61 * @deprecated
62 */
63 private void list( final File pFile, final List pFiles ) {
64 if (pFile.isDirectory()) {
65 final File[] directoryFiles = pFile.listFiles();
66 for (int i = 0; i < directoryFiles.length; i++) {
67 list(directoryFiles[i], pFiles);
68 }
69 } else {
70 pFiles.add(pFile.getAbsolutePath().substring(root.getAbsolutePath().length()+1));
71 }
72 }
73 }