DropReceivedLinespublic class DropReceivedLines extends Object | Read a file and print, using LineReader and System.out |
| Fields Summary |
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| protected static File | tempFile |
| Methods Summary |
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| public static void | main(java.lang.String[] av)
DropReceivedLines d = new DropReceivedLines();
// For stdin, act as a filter. For named files,
// update each file in place (safely, by creating a new file).
try {
if (av.length == 0)
d.process(new BufferedReader(
new InputStreamReader(System.in)),
new PrintWriter(System.out));
else for (int i=0; i<av.length; i++)
d.process(av[i]);
} catch (FileNotFoundException e) {
System.err.println(e.getMessage());
} catch (IOException e) {
System.err.println("I/O error " + e);
}
| | public void | process(java.lang.String fileName)Process one file given only its name
File old = new File(fileName);
String newFileName = fileName + ".TMP";
File newf = new File(newFileName);
BufferedReader is =
new BufferedReader(new FileReader(fileName));
PrintWriter p = new PrintWriter(new FileWriter(newFileName));
process(is, p); // call other process(), below
p.close();
old.renameTo(tempFile);
newf.renameTo(old);
tempFile.delete();
| | public void | process(java.io.BufferedReader is, java.io.PrintWriter out)process one file, given an open LineReader
try {
String lin;
// If line begins with "Received:", ditch it, and its continuations
while ((lin = is.readLine()) != null) {
Debug.println("read", "Read line " + lin);
if (lin.startsWith("Received:")) {
do {
lin = is.readLine();
Debug.println("read", "\tContin read line " + lin);
} while (lin.length() > 0 &&
Character.isWhitespace(lin.charAt(0)));
}
out.println(lin);
}
is.close();
out.close();
} catch (IOException e) {
System.out.println("IOException: " + e);
}
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