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1 package com.opensymphony.webwork.portlet.util;
2
3 import com.opensymphony.util.TextUtils;
4 import org.apache.commons.logging.Log;
5 import org.apache.commons.logging.LogFactory;
6
7 import javax.servlet.http.HttpServletRequest  ;
8 import java.io.*;
9 import java.util.ArrayList ;
10 import java.util.List ;
11
12 public class FileUtils {
13 private static Log log;
14
15 private static final int BUFFER_SIZE = 1024;
16
17 static {
18 log = LogFactory.getLog(com.opensymphony.webwork.portlet.util.FileUtils.class);
19 }
20
21 public FileUtils() {
22 }
23
24 public static void copyDirectory(File srcDir, File destDir) throws IOException {
25 copyDirectory(srcDir, destDir, false);
26 }
27
28 public static void copyDirectory(File srcDir, File destDir, boolean overwrite) throws IOException {
29 File files[] = srcDir.listFiles();
30 if (!destDir.exists())
31 destDir.mkdirs();
32 else
33 log.debug(destDir.getAbsolutePath() + " already exists");
34 for (int i = 0; i < files.length; i++) {
35 File file = files[i];
36 File dest = new File(destDir, file.getName());
37 if (file.isFile())
38 copyFile(new FileInputStream(file), dest, overwrite);
39 else
40 copyDirectory(file, dest, overwrite);
41 }
42
43 }
44
45 public static void copyFile(File srcFile, File destFile) throws IOException {
46 InputStream input = new FileInputStream(srcFile);
47 copyFile(input, destFile);
48 }
49
50 public static void copyFile(InputStream srcStream, File destFile) throws IOException {
51 copyFile(srcStream, destFile, false);
52 }
53
54 public static void copyFile(InputStream srcStream, File destFile, boolean overwrite) throws IOException {
55 File parentFile = destFile.getParentFile();
56 if (!parentFile.isDirectory())
57 parentFile.mkdirs();
58 if (destFile.exists()) {
59 if (overwrite) {
60 log.debug("Overwriting file at: " + destFile.getAbsolutePath());
61 writeStreamToFile(srcStream, destFile);
62 } else {
63 log.warn(destFile.getAbsolutePath() + " already exists");
64 }
65 } else {
66 destFile.createNewFile();
67 writeStreamToFile(srcStream, destFile);
68 }
69 }
70
71 private static void writeStreamToFile(InputStream srcStream, File destFile) throws IOException {
72 OutputStream output;
73 Exception exception;
74 InputStream input = null;
75 output = null;
76 try {
77 input = new BufferedInputStream(srcStream);
78 output = new BufferedOutputStream(new FileOutputStream(destFile));
79 int ch;
80 while ((ch = input.read()) != -1) output.write(ch);
81 } catch (IOException e) {
82 log.error("Error writing stream to file: " + destFile.getAbsolutePath());
83 throw e;
84 } finally {
85 input.close();
86 }
87 output.close();
88
89 }
90
91 public static void saveTextFile(String stringContent, File destFile) throws IOException {
92 ensureFileAndPathExist(destFile);
93 FileWriter writer = new FileWriter(destFile);
94 writer.write(stringContent);
95 writer.close();
96 }
97
98 public static void ensureFileAndPathExist(File file) throws IOException {
99 file.getParentFile().mkdirs();
100 file.createNewFile();
101 }
102
103 public static void createZipFile(File baseDir, File zipFile) throws Exception {
104 FolderArchiver compressor = new FolderArchiver(baseDir, zipFile);
105 compressor.doArchive();
106 }
107
108 public static List readResourcesAsList(String resource) {
109 List result = new ArrayList ();
110 try {
111 InputStream is = ClassLoaderUtils.getResourceAsStream(resource, com.opensymphony.webwork.portlet.util.FileUtils.class);
112 BufferedReader in = new BufferedReader(new InputStreamReader(is));
113 do {
114 String s;
115 if ((s = in.readLine()) == null)
116 break;
117 String niceS = TextUtils.noNull(s).trim();
118 if (TextUtils.stringSet(niceS) && niceS.charAt(0) != '#')
119 result.add(s);
120 } while (true);
121 is.close();
122 } catch (IOException e) {
123 log.error("IOException reading stream: " + e, e);
124 }
125 return result;
126 }
127
128 public static String getResourceContent(String resource) {
129 InputStream is = ClassLoaderUtils.getResourceAsStream(resource, com.opensymphony.webwork.portlet.util.FileUtils.class);
130 return getInputStreamTextContent(is);
131 }
132
133 public static String getResourceContent(HttpServletRequest req, String resource) {
134 InputStream is = req.getSession().getServletContext().getResourceAsStream(resource);
135 String result = getInputStreamTextContent(is);
136 if (result == null)
137 result = "";
138 return result;
139 }
140
141 public static String getInputStreamTextContent(InputStream is) {
142 if (is == null)
143 return null;
144 String result = null;
145 try {
146 ByteArrayOutputStream baos = new ByteArrayOutputStream(is.available());
147 pump(is, baos);
148 result = new String (baos.toByteArray());
149 is.close();
150 } catch (IOException e) {
151 log.error("IOException reading stream: " + e, e);
152 }
153 return result;
154 }
155
156 private static void pump(InputStream is, OutputStream os) throws IOException {
157 byte buffer[] = new byte[1024];
158 int lengthRead;
159 while ((lengthRead = is.read(buffer)) >= 0) os.write(buffer, 0, lengthRead);
160 }
161
162 public static boolean deleteDir(File dir) {
163 if (dir == null)
164 return false;
165 File candir;
166 try {
167 candir = dir.getCanonicalFile();
168 } catch (IOException e) {
169 return false;
170 }
171 if (!candir.equals(dir.getAbsoluteFile()))
172 return false;
173 File files[] = candir.listFiles();
174 if (files != null) {
175 for (int i = 0; i < files.length; i++) {
176 File file = files[i];
177 boolean deleted = !file.delete();
178 if (deleted && file.isDirectory())
179 deleteDir(file);
180 }
181
182 }
183 return dir.delete();
184 }
185
186 }
187
188 |
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