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| /**
* Process directory <code>dir</code> for files matching given <code>filenameFilter</code>.
*
* @param dir The directory to read.
* @param filenameFilter Files to be updated.
* @param level Level of recursion.
* @param params Regex map for find/replace.
*/
private static void processDir(File dir, String filenameFilter, int level, Map<String, String> params) {
Assert.ensure(level < 100, "no infinite recursion");
// File d = new File(dirName) ;
RegexpFilenameFilter filter = new RegexpFilenameFilter(filenameFilter);
String[] list = dir.list();
int i;
if (list != null) { // some io sanity check
for (i = 0; i < list.length; i++) {
File f = new File(dir, list[i]);
Assert.ensure(f != null, "file is null");
Assert.ensure(list[i] != null, "list[i] is null");
if (f.isDirectory()) {
processDir(f, filenameFilter, level + 1, params);
} else if (filter.accept(dir, f.getName())) {
s_logger.debug("Processing file: " + f.getName() + " (" + f.getAbsolutePath() + ")");
replaceInFile(params, f, f);
}
}
}
}
/**
* Replace params in desc file and save in target file.
*
* @param params Regex map for find/replace.
* @param desc Desc file (template).
* @param target Target file.
*/
private static void replaceInFile(Map<String, String> params, File desc, File target) {
// Desc file to string
StringBuffer sb = new StringBuffer();
FileReader fr = null;
BufferedReader br = null;
try {
fr = new FileReader(desc);
br = new BufferedReader(fr);
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line);
sb.append(NEWLINE);
}
} catch (Exception e) {
s_logger.fatal(e.getMessage(), e);
} finally {
if (fr != null) {
try {
fr.close();
} catch (IOException e) {
// Nothing
}
}
if (br != null) {
try {
br.close();
} catch (IOException e) {
// Nothing
}
}
}
// Replace params
String str = sb.toString();
for (Entry<String, String> param : params.entrySet()) {
try {
str = str.replaceAll(param.getKey(), param.getValue());
} catch (Throwable t) {
s_logger.fatal("key=" + param.getKey() + " | value=" + param.getValue(), t);
}
}
// Write target file
FileWriter fw = null;
try {
fw = new FileWriter(target);
fw.write(str);
} catch (Exception e) {
s_logger.fatal(e.getMessage(), e);
} finally {
if (fw != null) {
try {
fw.close();
} catch (IOException e) {
// Nothing
}
}
}
} |
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