package futils;
import java.io.*;
public final class Cat {
private Cat() {
}
static public void toConsole2(String suffix) {
File files[] = Ls.getWildFiles(suffix);
for (int i = 0; i < files.length; i++)
Cat.toConsole(ReaderUtil.getBufferedReader(
files[i]));
}
static public void toFile(String suffix) {
File files[] = Ls.getWildFiles(suffix);
BufferedWriter bw =
WriterUtil.getBufferedWriter("select an output for the *" + suffix + " files");
for (int i = 0; i < files.length; i++)
fileToWriter(files[i], bw);
WriterUtil.close(bw);
}
static public void wildToFile(String suffix, FileWriter fw) {
try {
File files[] = Ls.getWildFiles(suffix);
if (files == null) {
System.out.println("ER!:wildToFile, files==null");
return;
}
System.out.println("will process " + files.length + " files");
PrintWriter pw = new PrintWriter(fw);
for (int i = 0; i < files.length; i++)
fileToStream(
new BufferedReader(
new FileReader(files[i])), pw);
fw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void testWildToFile() {
wildToFile(".java",
WriterUtil.getFileWriter("select output file"));
}
static public void javasToConsole2() {
File files[] = Ls.getWildFiles("java");
for (int i = 0; i < files.length; i++)
fileToConsole(
files[i]);
}
static public void fileToConsole(File f) {
try {
System.out.println("cat: " + f);
FileReader fr = new FileReader(f);
String line;
BufferedReader br = new BufferedReader(fr);
while ((line = br.readLine()) != null)
System.out.println(line);
br.close();
} catch (Exception exe) {
System.out.println("cat:Error on input file");
}
}
static public void fileToWriter(File f, BufferedWriter bw) {
System.out.println("cat: " + f);
BufferedReader br =
ReaderUtil.getBufferedReader(f);
for (String line = ReaderUtil.readLine(br);
line != null; line = ReaderUtil.readLine(br)) {
WriterUtil.println(bw, line);
}
ReaderUtil.close(br);
}
public static void toConsole() {
toConsole(ReaderUtil.getBufferedReader(
Futil.getReadFile(
"select a file to Cat.listFilesToConsole()")));
}
static public void toConsole(BufferedReader br) {
String line;
while ((line = ReaderUtil.readLine(br)) != null)
System.out.println(line);
ReaderUtil.close(br);
}
static public void fileToStream(
BufferedReader br, PrintWriter pw) {
String line;
try {
while ((line = br.readLine()) != null)
pw.println(line);
br.close();
} catch (Exception exe) {
System.out.println("cat:Error on input file");
}
}
public static void main(String args[]) {
testWildToFile();
System.out.println("done!");
}
}