Example usage for java.lang ClassLoader getResource

List of usage examples for java.lang ClassLoader getResource

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Introduction

In this page you can find the example usage for java.lang ClassLoader getResource.

Prototype

public URL getResource(String name)

Source Link

Document

Finds the resource with the given name.

Usage

From source file:com.dianping.resource.io.util.ResourceUtils.java

/**
 * Resolve the given resource location to a {@code java.io.File},
 * i.e. to a file in the file system.//from   ww w . ja  v a 2s  .  c  o m
 * <p>Does not check whether the file actually exists; simply returns
 * the File that the given location would correspond to.
 * @param resourceLocation the resource location to resolve: either a
 * "classpath:" pseudo URL, a "file:" URL, or a plain file path
 * @return a corresponding File object
 * @throws java.io.FileNotFoundException if the resource cannot be resolved to
 * a file in the file system
 */
public static File getFile(String resourceLocation) throws FileNotFoundException {
    Assert.notNull(resourceLocation, "Resource location must not be null");
    if (resourceLocation.startsWith(CLASSPATH_URL_PREFIX)) {
        String path = resourceLocation.substring(CLASSPATH_URL_PREFIX.length());
        String description = "class path resource [" + path + "]";
        ClassLoader cl = ClassUtils.getDefaultClassLoader();
        URL url = (cl != null ? cl.getResource(path) : ClassLoader.getSystemResource(path));
        if (url == null) {
            throw new FileNotFoundException(description + " cannot be resolved to absolute file path "
                    + "because it does not reside in the file system");
        }
        return getFile(url, description);
    }
    try {
        // try URL
        return getFile(new URL(resourceLocation));
    } catch (MalformedURLException ex) {
        // no URL -> treat as file path
        return new File(resourceLocation);
    }
}

From source file:nl.knaw.dans.common.lang.ResourceLocator.java

/**
 * Get the URL for the given location, or <code>null</code> if no resource exists on given location.
 * /*from  w  w  w.  j  a  v a  2 s  .co m*/
 * @param location
 *        a relative path on the class path, separated with "/"
 * @return URL of the resource or <code>null</code>
 */
public static URL getURL(final String location) {
    URL url = null;
    if (HOME_DIRECTORIES != null) {
        for (HomeDirectory home : HOME_DIRECTORIES) {

            File file = new File(home.getHomeDirectory(), location);
            if (file.exists()) {
                try {
                    return file.toURI().toURL();
                } catch (MalformedURLException e) {
                    // we return null "if no resource exists on given location."
                }
            }
        }
    }

    if (url == null) // try to locate the resource on the classpath.
    {
        final ClassLoader classLoader = ResourceLocator.class.getClassLoader();
        if (classLoader != null) {
            url = classLoader.getResource(location);
        }
    }
    return url;
}

From source file:org.jboss.as.test.integration.web.security.WebSecurityCERTTestCase.java

public static void createTestConnector(final ModelControllerClient client) throws Exception {
    final List<ModelNode> updates = new ArrayList<ModelNode>();
    ModelNode op = new ModelNode();
    op.get(OP).set(ADD);//from   w w  w. j  a  v a  2 s  .  c o  m
    op.get(OP_ADDR).add("socket-binding-group", "standard-sockets");
    op.get(OP_ADDR).add("socket-binding", "https-test");
    op.get("interface").set("default");
    op.get("port").set(8380);

    updates.add(op);

    op = new ModelNode();
    op.get(OP).set(ADD);
    op.get(OP_ADDR).add(SUBSYSTEM, "web");
    op.get(OP_ADDR).add("connector", "testConnector");
    op.get("socket-binding").set("https-test");
    op.get("enabled").set(true);
    op.get("protocol").set("HTTP/1.1");
    op.get("scheme").set("https");
    op.get("secure").set(true);
    ModelNode ssl = new ModelNode();
    ssl.setEmptyObject();
    ssl.get("name").set("https-test");
    ssl.get("key-alias").set("test");
    ssl.get("password").set("changeit");
    ClassLoader tccl = Thread.currentThread().getContextClassLoader();
    URL keystore = tccl.getResource("security/server.keystore");
    ssl.get("certificate-key-file").set(keystore.getPath());
    ssl.get("protocol").set("TLS");
    ssl.get("verify-client").set(true);
    op.get("ssl").set(ssl);

    updates.add(op);
    applyUpdates(updates, client);
}

From source file:mzmatch.util.Tool.java

/**
 * //w w  w  .j  a  v a  2s .c o m
 * 
 * @param pckgname
 * @return
 * @throws ClassNotFoundException
 */
public static Vector<Class<? extends Object>> getAllClasses(String pckgname) throws ClassNotFoundException {
    Vector<Class<? extends Object>> classes = new Vector<Class<? extends Object>>();

    // load the current package
    ClassLoader cld = Thread.currentThread().getContextClassLoader();
    if (cld == null)
        throw new ClassNotFoundException("Can't get class loader.");

    String path = pckgname.replace('.', '/');
    URL resource = cld.getResource(path);
    if (resource == null)
        throw new ClassNotFoundException("No resource for " + path);

    // parse the directory
    File directory = new File(resource.getFile());
    if (directory.isDirectory() && directory.exists()) {
        for (File f : directory.listFiles()) {
            if (f.getName().endsWith(".class"))
                classes.add(Class.forName(pckgname + '.' + f.getName().substring(0, f.getName().length() - 6)));
        }
        for (File f : directory.listFiles()) {
            if (f.isDirectory())
                classes.addAll(getAllClasses(pckgname + "." + f.getName()));
        }
    } else
        throw new ClassNotFoundException(pckgname + " does not appear to be a valid package");

    return classes;
}

From source file:com.dianping.resource.io.util.ResourceUtils.java

/**
 * Resolve the given resource location to a {@code java.net.URL}.
 * <p>Does not check whether the URL actually exists; simply returns
 * the URL that the given location would correspond to.
 * @param resourceLocation the resource location to resolve: either a
 * "classpath:" pseudo URL, a "file:" URL, or a plain file path
 * @return a corresponding URL object//from w ww  . j  a v a 2  s .c o  m
 * @throws java.io.FileNotFoundException if the resource cannot be resolved to a URL
 */
public static URL getURL(String resourceLocation) throws FileNotFoundException {
    Assert.notNull(resourceLocation, "Resource location must not be null");
    if (resourceLocation.startsWith(CLASSPATH_URL_PREFIX)) {
        String path = resourceLocation.substring(CLASSPATH_URL_PREFIX.length());
        ClassLoader cl = ClassUtils.getDefaultClassLoader();
        URL url = (cl != null ? cl.getResource(path) : ClassLoader.getSystemResource(path));
        if (url == null) {
            String description = "class path resource [" + path + "]";
            throw new FileNotFoundException(
                    description + " cannot be resolved to URL because it does not exist");
        }
        return url;
    }
    try {
        // try URL
        return new URL(resourceLocation);
    } catch (MalformedURLException ex) {
        // no URL -> treat as file path
        try {
            return new File(resourceLocation).toURI().toURL();
        } catch (MalformedURLException ex2) {
            throw new FileNotFoundException("Resource location [" + resourceLocation
                    + "] is neither a URL not a well-formed file path");
        }
    }
}

From source file:org.jboss.as.test.integration.security.loginmodules.common.Utils.java

public static URL getResource(String name) {
    ClassLoader tccl = Thread.currentThread().getContextClassLoader();
    return tccl.getResource(name);
}

From source file:com.sunchenbin.store.feilong.core.lang.ClassLoaderUtil.java

/**
 * ???.//from w  ww .ja  va 2  s  .  c om
 * <p>
 * "",classes 
 * </p>
 * e.q:<br>
 * 
 * <blockquote>
 * <table border="1" cellspacing="0" cellpadding="4">
 * <tr style="background-color:#ccccff">
 * <th align="left"></th>
 * <th align="left">(maven)</th>
 * <th align="left">web,(??jar)</th>
 * </tr>
 * <tr valign="top">
 * <td>{@code getResource("")}</td>
 * <td>file:/E:/Workspaces/feilong/feilong-platform/feilong-common/target/test-classes/</td>
 * <td>file:/E:/Workspaces/feilong/feilong-platform/feilong-spring-test-2.5/src/main/webapp/WEB-INF/classes/</td>
 * </tr>
 * <tr valign="top" style="background-color:#eeeeff">
 * <td>{@code getResource("com")}</td>
 * <td>file:/E:/Workspaces/feilong/feilong-platform/feilong-common/target/test-classes/com</td>
 * <td>file:/E:/Workspaces/feilong/feilong-platform/feilong-spring-test-2.5/src/main/webapp/WEB-INF/classes/com/</td>
 * </tr>
 * </table>
 * </blockquote>
 *
 * @param classLoader
 *            the class loader
 * @param resourceName
 *            the resource name
 * @return the resource
 * @since 1.2.1
 */
public static URL getResource(ClassLoader classLoader, String resourceName) {
    return classLoader.getResource(resourceName);
}

From source file:com.github.fge.jackson.JsonLoader.java

/**
 * Read a {@link JsonNode} from a resource path.
 *
 * <p>This method first tries and loads the resource using {@link
 * Class#getResource(String)}; if not found, is tries and uses the context
 * classloader and if this is not found, this class's classloader.</p>
 *
 * <p>This method throws an {@link IOException} if the resource does not
 * exist.</p>/*  ww w . ja  v  a 2 s .c o m*/
 *
 * @param resource the path to the resource (<strong>must</strong> begin
 * with a {@code /})
 * @return the JSON document at the resource
 * @throws IllegalArgumentException resource path does not begin with a
 * {@code /}
 * @throws IOException there was a problem loading the resource, or the JSON
 * document is invalid
 */
public static JsonNode fromResource(@Nonnull final String resource) throws IOException {
    Preconditions.checkNotNull(resource);
    Preconditions.checkArgument(resource.startsWith("/"), "resource path does not start with a '/'");
    URL url;
    url = JsonLoader.class.getResource(resource);
    if (url == null) {
        final ClassLoader classLoader = Objects.firstNonNull(Thread.currentThread().getContextClassLoader(),
                JsonLoader.class.getClassLoader());
        final String s = INITIAL_SLASH.matcher(resource).replaceFirst("");
        url = classLoader.getResource(s);
    }
    if (url == null)
        throw new IOException("resource " + resource + " not found");

    final Closer closer = Closer.create();
    final JsonNode ret;
    final InputStream in;

    try {
        in = closer.register(url.openStream());
        ret = READER.fromInputStream(in);
    } finally {
        closer.close();
    }

    return ret;
}

From source file:com.stratio.crossdata.core.utils.ParserUtils.java

/**
 * Get a replacement token for a given one.
 *
 * @param target The parser token./*from   w  w w  .  ja va2 s.c  o  m*/
 * @return A string with the replacement token.
 */
private static String getReplacement(String target) {
    String targetToken = target.substring(2);
    String replacement = "";
    BufferedReader bufferedReaderF = null;
    try {

        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();

        FileInputStream tokensFile = new FileInputStream(
                classLoader.getResource("com/stratio/crossdata/parser/tokens.txt").getFile());

        bufferedReaderF = new BufferedReader(new InputStreamReader(tokensFile, Charset.forName("UTF-8")));

        String line = bufferedReaderF.readLine();
        while (line != null) {
            if (line.startsWith(targetToken)) {
                replacement = line.substring(line.indexOf(':') + 1);
                replacement = replacement.replace("[#", "\"");
                replacement = replacement.replace("#]", "\"");
                replacement = replacement.replace(" ", "");
                break;
            }
            line = bufferedReaderF.readLine();
        }
    } catch (IOException ex) {
        LOG.error("Cannot read replacement file", ex);
    } finally {
        try {
            if (bufferedReaderF != null) {
                bufferedReaderF.close();
            }
        } catch (IOException e) {
            LOG.error("Cannot close replacement file", e);
        }
    }
    return replacement;
}

From source file:Resources.java

/**
 * Returns the URL of the resource on the classpath
 *
 * @param loader   The classloader used to load the resource
 * @param resource The resource to find//from   w  ww  .j a  va  2s. c  om
 * @return The resource
 * @throws IOException If the resource cannot be found or read
 */
public static URL getResourceURL(ClassLoader loader, String resource) throws IOException {
    URL url = null;
    if (loader != null)
        url = loader.getResource(resource);
    if (url == null)
        url = ClassLoader.getSystemResource(resource);
    if (url == null)
        throw new IOException("Could not find resource " + resource);
    return url;
}