Java Utililty Methods Resource Load

List of utility methods to do Resource Load

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Description

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

Method

InputStreamgetResourceStreamFromClasspath(Class clazz, String resourceName)
Helper method for grabbing a file from the classpath and returning an InputStream 
InputStream is = clazz.getResourceAsStream(resourceName);
if (is == null) {
    is = clazz.getClassLoader().getResourceAsStream(resourceName);
    if (is == null)
        throw new RuntimeException("resource not found in classpath: " + resourceName + " class is: "
                + clazz.getCanonicalName());
return is;
...
InputStreamgetResourceStreamInPackage(Class clazz, String name)
get Resource Stream In Package 
return clazz.getResourceAsStream("/" + clazz.getPackage().getName().replace(".", "/") + "/" + name);
StringgetResourceString(String filename)
get Resource String 
String rootPath = "./Oracle/src/test/resources/co/digitaloracle/";
String string = new Scanner(new File(rootPath + filename)).useDelimiter("\\Z").next();
return string;
URIgetResourceUri(final String packageToScan, final ClassLoader classLoader)
get Resource Uri 
String folderToScan = packageToScan.replace(PACKAGE_SEPARATOR, RESOURCE_SEPARATOR);
URL url = classLoader.getResource(folderToScan);
if (url == null) {
    throw new IllegalArgumentException("No folder to scan found for package '" + packageToScan + "'.");
try {
    if (url.getPath().contains(" ")) {
        url = new URL(url.getProtocol(), url.getHost(), url.getPort(), url.getPath().replace(" ", "%20"));
...
URLgetResourceUrl(final Class aClass, final String aPath)
get Resource Url 
final URL url = aClass.getResource(aPath);
if (url == null) {
    throw new FileNotFoundException("Resource not found for " + aClass.toString() + ": " + aPath);
} else {
    return url;
URLgetResourceUrl(final String resourcePath)
Gets the URL of a local resource. 
return ClassLoader.class.getResource(resourcePath);
URLgetResourceUrl(String path, String extension, ClassLoader loader)
get Resource Url 
if (path == null || loader == null) {
    return null;
path = getResourcePath(path, extension);
return loader.getResource(path);
URLgetResourceURL(String resourcePath)
Get an URL of a classpath-relative resource. 
final ClassLoader cl = Thread.currentThread().getContextClassLoader();
final URL url = cl.getResource(resourcePath);
if (url == null)
    throw new IOException("Resource not found: " + resourcePath);
return url;
URLgetResourceUrl(String resourcePath)
Returns the specified resource URL or null if not found. 
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
return classLoader.getResource(resourcePath);
byte[]getResourceUsingFileStreams(InputStream source)
get Resource Using File Streams 
ByteArrayOutputStream output = null;
try {
    output = new ByteArrayOutputStream();
    byte[] buf = new byte[1024];
    int bytesRead;
    while ((bytesRead = source.read(buf)) > 0) {
        output.write(buf, 0, bytesRead);
    output.flush();
    return output.toByteArray();
} catch (Exception ex) {
    return null;
} finally {
    try {
        source.close();
        output.close();
    } catch (Exception ex) {