Java Utililty Methods Resource Load

List of utility methods to do Resource Load

  1. HOME
  2. Java
  3. R
  4. Resource Load

Description

The list of methods to do Resource Load are organized into topic(s).

Method

InputStreamgetResourceAsStream(String resourcePath)
We must get the Resource as a stream from the ContextClassLoader and not from the normal classLoader acquired by using getClass.getClassLoader, since we must be able to load resources from different threads e.g. 
return Thread.currentThread().getContextClassLoader().getClass().getResourceAsStream(resourcePath);
InputStreamgetResourceAsStreamInClassPath(@SuppressWarnings("rawtypes") Class clazz, String filepath)
get Resource As Stream In Class Path 
return clazz.getClassLoader().getResourceAsStream(filepath);
InputStreamgetResourceAsStrem(String name)
get Resource As Strem 
return Thread.currentThread().getContextClassLoader().getResourceAsStream(name);
StringgetResourceAsString(Class clazz, String name)
get Resource As String 
return getString(clazz.getResourceAsStream(name));
StringgetResourceAsString(Class clazz, String resource)
Retrieves a Resource as a String if exists, else returns null 
InputStream stream = clazz.getResourceAsStream(resource);
if (stream == null)
    return null;
return toString(stream);
StringgetResourceAsString(Class theClass, String fileName)
get Resource As String 
File f = new File(theClass.getResource(fileName).getFile());
FileReader fr = new FileReader(f);
BufferedReader br = new BufferedReader(fr);
StringBuilder sb = new StringBuilder();
String line = br.readLine();
while (line != null) {
    sb.append(line + "\n");
    line = br.readLine();
...
StringgetResourceAsString(final String resourceName, final Class caller, final String charset)
get Resource As String 
return new String(readStream(getResourceAsStream(resourceName, caller)), charset);
StringgetResourceAsString(InputStream in)
get Resource As String 
ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
byte[] buf = new byte[1024];
int sz = 0;
try {
    while (true) {
        sz = in.read(buf);
        baos.write(buf, 0, sz);
        if (sz < buf.length)
...
StringgetResourceAsString(InputStream resource)
get Resource As String 
BufferedReader br = new BufferedReader(new InputStreamReader(resource));
StringBuilder sb = new StringBuilder();
int c;
while ((c = br.read()) != -1) {
    sb.append((char) c);
br.close();
return sb.toString();
...
StringgetResourceAsString(String name)
get Resource As String 
InputStream is = getResource(name);
Scanner scanner = new Scanner(is, "UTF-8");
StringBuilder sb = new StringBuilder();
while (scanner.hasNext()) {
    sb.append(scanner.nextLine()).append("\n");
return sb.toString();