Java Utililty Methods InputStreamReader Create

Reader getReader(final File file)
Method getReader

final FileInputStream fileinputstream = new FileInputStream(file);
final byte bytes[] = readUpTo(fileinputstream, 100);
fileinputstream.close();
final String s = normalizeEncoding(getEncoding(bytes));
return new InputStreamReader(new FileInputStream(file), s);

Reader getReader(final InputStream is)
get Reader

final Reader result = new InputStreamReader(is);
return result;

Reader getReader(String name, String extension)
get Reader

File f = new File(name);
if (f.exists())
 return new FileReader(f);
f = new File(name + extension);
if (f.exists())
 return new FileReader(f);
f = new File(name + ".gz");
if (!f.exists())
...

InputStreamReader getReaderForFile(IFile file)
get Reader For File

InputStream contents = file.getContents();
InputStreamReader r = new InputStreamReader(contents, file.getCharset());
return r;

String readTextFile(File f)
read Text File

StringBuffer buf = new StringBuffer();
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(f), "UTF-8"));
String inputLine;
while ((inputLine = in.readLine()) != null) {
 buf.append(inputLine);
 buf.append('\n');
in.close();
...

String readTextFile(File f)
read Text File

StringBuffer buf = new StringBuffer();
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(f), "UTF-8"));
String inputLine;
while ((inputLine = in.readLine()) != null) {
 buf.append(inputLine);
 buf.append('\n');
in.close();
...

String readTextFile(File f)
read Text File

StringBuffer buf = new StringBuffer();
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(f)));
String inputLine;
while ((inputLine = in.readLine()) != null) {
 buf.append(inputLine);
 buf.append('\n');
in.close();
...

String readTextFile(File f)
read Text File

StringBuffer buf = new StringBuffer();
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(f)));
String inputLine;
while ((inputLine = in.readLine()) != null) {
 buf.append(inputLine);
 buf.append('\n');
in.close();
...

String readTextFile(File f)
read Text File

Reader br = new BufferedReader(new InputStreamReader(new FileInputStream(f), "UTF-8"));
return readText(br);

String readTextFile(File f, int maxNumLines)
Read in the last few lines of a (newline delimited) textfile, or null if the file doesn't exist.

if (!f.exists())
 return null;
FileInputStream fis = null;
BufferedReader in = null;
try {
 fis = new FileInputStream(f);
 in = new BufferedReader(new InputStreamReader(fis));
 List<String> lines = new ArrayList<String>(maxNumLines);
...