Java Utililty Methods URI to Relative URI

List of utility methods to do URI to Relative URI

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Description

The list of methods to do URI to Relative URI are organized into topic(s).

Method

FileresolveFileUri(String fullPageURI, File rootPath)
resolve File Uri 
URI uri = URI.create(fullPageURI);
try {
    return new File(uri);
} catch (IllegalArgumentException e) {
    if (!"file".equals(uri.getScheme()) || rootPath == null) {
        throw e;
    URI rootUri = rootPath.toURI();
...
URIresolvePartUri(URI sourcePartUri, URI targetUri)
Resolve a source uri against a target. 
if (sourcePartUri == null || sourcePartUri.isAbsolute()) {
    throw new IllegalArgumentException("sourcePartUri invalid - " + sourcePartUri);
if (targetUri == null || targetUri.isAbsolute()) {
    throw new IllegalArgumentException("targetUri invalid - " + targetUri);
return sourcePartUri.resolve(targetUri);
URIresolvePath(URI root, String subPath)
root: smb:/host/my path: path/blub ====> smb:/host/my/path/blub 
String rootStr = root.toString();
if (subPath.startsWith("/")) {
    subPath = subPath.substring(1, subPath.length());
return new URI(rootStr + (!rootStr.endsWith("/") ? "/" : "") + subPath);
intresolvePort(URI uri)
resolve Port 
if (uri == null) {
    return (-1);
int port = uri.getPort();
if (port <= 0) {
    if ("http".equals(uri.getScheme()))
        port = 80;
    else
...
URIresolveReferenceStartingWithQueryString(final URI baseURI, final URI reference)
Resolves a reference starting with a query string. 
String baseUri = baseURI.toString();
baseUri = baseUri.indexOf('?') > -1 ? baseUri.substring(0, baseUri.indexOf('?')) : baseUri;
return URI.create(baseUri + reference.toString());
URIresolveRelativeURI(String baseURI, String uriRef)
Constructs an absolute URI from the given URI reference and a base URI. 
URI uri = (null != baseURI) ? URI.create(baseURI) : URI.create("");
if (null != baseURI && null == uri.getScheme()) {
    throw new IllegalArgumentException("Base URI has no scheme component: " + baseURI);
return uri.resolve(uriRef);
StringresolveRelativeURI(URI base, String rel)
resolve Relative URI 
if (base.getFragment() != null) {
    return base + rel;
return base.resolve(rel).toString();
URIresolveURI(File base_dir, URI uri)
If the uri has a file scheme, return a new absolute file url joining it to the base directory. 
StringBuilder path = new StringBuilder();
if (uri.getHost() != null) {
    path.append(uri.getHost());
if (uri.getPath() != null) {
    path.append(uri.getPath());
if (uri.getScheme().equals("file")) {
...
StringresolveURI(final String path)
resolve URI 
try {
    URI uri = new URI(path);
    if (uri.getScheme() == null) {
        String fragment = uri.getFragment();
        URI part = new File(uri.getPath()).toURI();
        uri = new URI(part.getScheme(), part.getPath(), fragment);
    return uri.toString();
...
URIresolveURI(String uri)
Resolves the specified uri. 
if (uri == null) {
    uri = "";
URI temp = null;
try {
    URL url = new URL(uri);
    temp = url.toURI();
} catch (MalformedURLException | URISyntaxException mue) {
...