Java Utililty Methods ClassLoader Load

List of utility methods to do ClassLoader Load

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Description

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

Method

ListgetFullPathByPkg(String pkg)
get Full Path By Pkg 
List<String> result = new ArrayList<>();
ClassLoader loader = Thread.currentThread().getContextClassLoader();
String packagePath = pkg.replace(".", "/");
URL url = loader.getResource(packagePath);
File dir = new File(url.getPath());
StringBuilder str = new StringBuilder();
for (File f : dir.listFiles()) {
    str.append(pkg).append(".");
...
StringgetImageFilename(String name)
Adds the path of the images directory to the name of the image. 
String result;
String dir;
URL url;
result = null;
dir = "com/github/fracpete/screencast4j/images/";
try {
    url = ClassLoader.getSystemClassLoader().getResource(dir + name);
    if (url != null)
...
InputStreamgetInputStream(String name)
get Input Stream 
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
InputStream is = null;
if ((name != null) && (name.indexOf(":/") > -1)) {
    try {
        is = new URL(name).openStream();
    } catch (Exception e) {
URL url = classLoader.getResource(name);
if (is == null) {
    try {
        is = classLoader.getResourceAsStream(name);
    } catch (Exception e) {
if (is == null) {
    try {
        is = classLoader.getResourceAsStream('/' + name);
    } catch (Exception e) {
if (is == null) {
    try {
        is = classLoader.getResourceAsStream("META-INF/" + name);
    } catch (Exception e) {
if (is == null) {
    try {
        is = new FileInputStream(name);
    } catch (FileNotFoundException e) {
return is;
StringgetLibKoyaVersion()
get Lib Koya Version 
Enumeration resEnum;
try {
    resEnum = Thread.currentThread().getContextClassLoader().getResources("META-INF/build.properties");
    while (resEnum.hasMoreElements()) {
        try {
            URL url = (URL) resEnum.nextElement();
            InputStream is = url.openStream();
            Properties prop = new Properties();
...
FilegetLocalFile(final String aLocalPath)
get Local File 
try {
    return new File(ClassLoader.getSystemResource("").toURI().getPath(), aLocalPath);
} catch (final URISyntaxException uiUriSyntaxException) {
    throw new IllegalStateException("This is a critical error. Please report it.", uiUriSyntaxException);
URLgetLog4jPropertiesLocation()
get Logj Properties Location 
URL systemResource = ClassLoader.getSystemResource(LOG4J_PROPERTIES);
return systemResource;
StringgetManifestInfo()
get Manifest Info 
Enumeration resEnum;
try {
    resEnum = Thread.currentThread().getContextClassLoader().getResources(JarFile.MANIFEST_NAME);
    while (resEnum.hasMoreElements()) {
        try {
            URL url = (URL) resEnum.nextElement();
            InputStream is = url.openStream();
            if (is != null) {
...
StringgetMetadataSpecialSymbolsXml()
get Metadata Special Symbols Xml 
return new File(ClassLoader.getSystemClassLoader().getResource("dpp/metadata-special-symbols.xml").toURI())
        .getAbsolutePath();
StringgetPath(final String fileName)
get Path 
final URL url = ClassLoader.getSystemResource(fileName);
if (url != null) {
    return url.getFile();
} else {
    throw new IllegalArgumentException(
            "File " + fileName + " does not exist on the classpath: " + CLASSPATH);
StringgetPath(String resoureLocation)
This function returns the absolute path of a class path resource. 
return getContextClassLoader().getResource(resoureLocation).toURI().getPath();