Example usage for java.lang Class getResource

Introduction

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

Prototype

@CallerSensitive
public URL getResource(String name) 

Source Link

Document

Finds a resource with a given name.

Usage

From source file:net.ymate.platform.commons.util.FileUtils.java

/**
 * ?????//from w ww  .  j  av  a2  s .  c om
 *
 * @param clazz 
 * @return ???
 */
public static long getClassLastModifiedTimestamp(Class<?> clazz) {
    return getLastModifiedTimestamp(clazz.getResource(clazz.getSimpleName() + ".class").getFile());
}

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From source file:net.ymate.platform.commons.util.ResourceUtils.java

/**
 * //from w w  w.  ja v a 2s  .c  o  m
 * @param resourceName
 * @param callingClass
 * @return
 */
public static URL getResource(String resourceName, Class<?> callingClass) {
    URL url = Thread.currentThread().getContextClassLoader().getResource(resourceName);
    if (url == null) {
        url = ClassUtils.getDefaultClassLoader().getResource(resourceName);
    }
    if (url == null) {
        url = callingClass.getResource(resourceName);
        if (url == null) {
            ClassLoader cl = callingClass.getClassLoader();
            if (cl != null) {
                url = cl.getResource(resourceName);
            }
        }
    }
    if ((url == null) && (resourceName != null)
            && (((resourceName.length() == 0) || (resourceName.charAt(0) != '/')))) {
        return getResource('/' + resourceName, callingClass);
    }
    return url;
}

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From source file:nz.govt.natlib.ndha.manualdeposit.dialogs.About.java

@SuppressWarnings("unchecked")
private void startup() {
    try {//  w  ww.  j a  v  a  2s  .  co m
        try {
            theFormControl = new FormControl(this, theSettingsPath);
        } catch (Exception ex) {
            LOG.error("Error loading form parameters", ex);
        }
        ClassLoader cLoader = Thread.currentThread().getContextClassLoader();
        Toolkit kit = Toolkit.getDefaultToolkit();
        Package p = this.getClass().getPackage();
        lblVersion.setText(p.getImplementationVersion());
        if (new File(theLogoFileName).exists()) {
            theLogo = kit.getImage(theLogoFileName);
        } else {
            java.net.URL imageURL = cLoader.getResource(theLogoFileName);
            if (imageURL != null) {
                theLogo = kit.getImage(imageURL);
            }
        }
        if (theLogo != null) {
            lblBuildNo.setForeground(Color.white);
            lblBuildNoLabel.setForeground(Color.white);
            //lblHeader.setForeground(Color.white);
            lblVersion.setForeground(Color.white);
            lblVersionLabel.setForeground(Color.white);
            paintImage();
        }
        //String manifestFileName = "/META-INF/MANIFEST.MF";
        Class cls = this.getClass();

        String className = cls.getSimpleName();
        String classFileName = className + ".class";
        String pathToThisClass = cls.getResource(classFileName).toString();
        int mark = pathToThisClass.indexOf("!");
        String pathToManifest = pathToThisClass.substring(0, mark + 1);
        if (!pathToManifest.equals("")) {
            pathToManifest += "/META-INF/MANIFEST.MF";
            LOG.debug("Path to manifest: " + pathToManifest);
            Manifest mf = new Manifest(new URL(pathToManifest).openStream());
            if (mf != null) {
                Attributes attr = mf.getMainAttributes();
                String attrVersion = "Implementation-Version";
                String attrBuild = "Implementation-Build";
                String version = attr.getValue(attrVersion);
                String build = attr.getValue(attrBuild);
                this.lblVersion.setText(version);
                this.lblBuildNo.setText(build);
            }
        }
        Runtime runtime = Runtime.getRuntime();
        long maxMemory = runtime.maxMemory();
        long allocatedMemory = runtime.totalMemory();
        long freeMemory = runtime.freeMemory();
        LOG.debug("free memory: " + freeMemory / 1024);
        LOG.debug("allocated memory: " + allocatedMemory / 1024);
        LOG.debug("max memory: " + maxMemory / 1024);
        LOG.debug("total free memory: " + (freeMemory + (maxMemory - allocatedMemory)) / 1024);
    } catch (IOException ex) {
        ex.printStackTrace();
        LOG.error(ex.getMessage(), ex);
    }
}

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From source file:org.ambraproject.configuration.ConfigurationStore.java

/**
 * Iterate over all the resources of the given name and add them to our root
 * configuration.//from  w ww .  j a v  a 2 s . c o m
 * @param root the root configuration to add to
 * @param resource the resource to add
 * @throws ConfigurationException on an error in adding the new config
 */
public static void addResources(CombinedConfiguration root, String resource) throws ConfigurationException {
    Class<?> klass = ConfigurationStore.class;
    if (resource.startsWith("/")) {
        root.addConfiguration(getConfigurationFromUrl(klass.getResource(resource)));
        log.info("Added resource '" + resource + "' to configuration");
    } else {
        try {
            Enumeration<URL> rs = klass.getClassLoader().getResources(resource);
            while (rs.hasMoreElements()) {
                URL resourceUrl = rs.nextElement();
                root.addConfiguration(getConfigurationFromUrl(resourceUrl));
                log.info("Added resource '" + resourceUrl + "' from path '" + resource + "' to configuration");
            }
        } catch (IOException ioe) {
            throw new Error("Unexpected error loading resources", ioe);
        }
    }
}

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From source file:org.apache.abdera2.common.Discover.java

public static URL locateResource(String id, ClassLoader loader, Class<?> callingClass) {
    URL url = loader.getResource(id);
    if (url == null && id.startsWith("/"))
        url = loader.getResource(id.substring(1));
    if (url == null)
        url = locateResource(id, Discover.class.getClassLoader(), callingClass);
    if (url == null && callingClass != null)
        url = locateResource(id, callingClass.getClassLoader(), null);
    if (url == null)
        url = callingClass.getResource(id);
    if ((url == null) && id.startsWith("/"))
        url = callingClass.getResource(id.substring(1));
    return url;//from  ww  w .  ja  va2  s  .c o  m
}

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From source file:org.apache.axis2.schema.writer.JavaBeanWriter.java

/**
 * A bit of code from the old code generator. We are better off using the
 * template engines and such stuff that's already there. But the class
 * writers are hard to be reused so some code needs to be repeated (atleast
 * a bit)//ww w .j  av a 2 s  .  c  om
 */
private void loadTemplate() throws SchemaCompilationException {

    // first get the language specific property map
    Class<?> clazz = this.getClass();
    String templateName = javaBeanTemplateName;
    if (templateName != null) {
        try {
            // Use URL instead of InputStream here, so that the processor may resolve
            // imports/includes with relative hrefs.
            URL xsl = clazz.getResource(templateName);
            templateCache = TransformerFactory.newInstance()
                    .newTemplates(new StreamSource(xsl.toExternalForm()));
            templateLoaded = true;
        } catch (TransformerConfigurationException e) {
            throw new SchemaCompilationException(
                    SchemaCompilerMessages.getMessage("schema.templateLoadException"), e);
        }
    } else {
        throw new SchemaCompilationException(
                SchemaCompilerMessages.getMessage("schema.templateNotFoundException"));
    }
}

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From source file:org.apache.click.util.ClickUtils.java

/**
 * Finds a resource with a given name. This method returns null if no
 * resource with this name is found./*  www .  ja  v  a  2  s  . co m*/
 * <p>
 * This method uses the current <tt>Thread</tt> context <tt>ClassLoader</tt> to find
 * the resource. If the resource is not found the class loader of the given
 * class is then used to find the resource.
 *
 * @param name the name of the resource
 * @param aClass the class lookup the resource against, if the resource is
 *     not found using the current <tt>Thread</tt> context <tt>ClassLoader</tt>.
 * @return the URL of the resource if found or null otherwise
 */
public static URL getResource(String name, Class<?> aClass) {
    Validate.notNull(name, "Parameter name is null");
    Validate.notNull(aClass, "Parameter aClass is null");

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

    URL url = classLoader.getResource(name);
    if (url == null) {
        url = aClass.getResource(name);
    }

    return url;
}

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From source file:org.apache.falcon.extensions.store.AbstractTestExtensionStore.java

private String getAbsolutePath(Class resourceClass, String fileName) {
    return resourceClass.getResource("/" + fileName).getPath();
}

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From source file:org.apache.falcon.util.ApplicationProperties.java

private InputStream checkClassPath(String propertyFileName) {

    InputStream resourceAsStream = null;
    Class clazz = ApplicationProperties.class;
    URL resource = clazz.getResource("/" + propertyFileName);
    if (resource != null) {
        LOG.info("Fallback to classpath for: {}", resource);
        resourceAsStream = clazz.getResourceAsStream("/" + propertyFileName);
    } else {/*from  ww  w .ja v a2 s.  c  o m*/
        resource = clazz.getResource(propertyFileName);
        if (resource != null) {
            LOG.info("Fallback to classpath for: {}", resource);
            resourceAsStream = clazz.getResourceAsStream(propertyFileName);
        }
    }
    return resourceAsStream;
}

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From source file:org.apache.geode.util.test.TestUtil.java

/**
 * Return the path to a named resource. This finds the resource on the classpath using the rules
 * of class.getResource. For a relative path it will look in the same package as the class, for an
 * absolute path it will start from the base package.
 * //from w ww  . j  av  a  2 s .  c  o  m
 * Best practice is to put the resource in the same package as your test class and load it with
 * this method.
 * 
 * @param clazz the class to look relative too
 * @param name the name of the resource, eg "cache.xml"
 */
public static String getResourcePath(Class<?> clazz, String name) {
    URL resource = clazz.getResource(name);
    if (resource == null) {
        throw new RuntimeException("Could not find resource " + name);
    }
    try {
        String path = resource.toURI().getPath();
        if (path == null) {
            String filename = name.replaceFirst(".*/", "");
            File tmpFile = File.createTempFile(filename, null);
            tmpFile.deleteOnExit();
            FileUtil.copy(resource, tmpFile);
            return compatibleWithWindows(tmpFile.getAbsolutePath());
        }
        return compatibleWithWindows(path);
    } catch (URISyntaxException | IOException e) {
        throw new RuntimeException("Failed getting path to resource " + name, e);
    }
}

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