Example usage for java.lang ClassLoader getResource

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:dk.statsbiblioteket.util.XPropertiesTest.java

/**
 * Helper method for deleating a file in the CLASSPATH
 *
 * @param resourceName the name of the resource to delete
 * @return true if the resource was deleted
 *//*from   w  w  w  . ja  va  2  s  . com*/
protected boolean deleteResource(String resourceName) {
    ClassLoader loader = Thread.currentThread().getContextClassLoader();
    URL resourceURL = loader.getResource(resourceName);
    if (resourceURL == null) {
        File f = new File(resourceName);
        if (f.exists()) {
            return f.delete();
        }
        log.error("Could not delete '" + f.getAbsoluteFile() + "'");
        return false;
    }
    return new File(resourceURL.getFile()).delete();
}

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From source file:org.apache.hadoop.crypto.key.JavaKeyStoreProvider.java

private JavaKeyStoreProvider(URI uri, Configuration conf) throws IOException {
    super(conf);// w  ww .ja v  a 2 s .c  o m
    this.uri = uri;
    path = ProviderUtils.unnestUri(uri);
    fs = path.getFileSystem(conf);
    // Get the password file from the conf, if not present from the user's
    // environment var
    if (System.getenv().containsKey(KEYSTORE_PASSWORD_ENV_VAR)) {
        password = System.getenv(KEYSTORE_PASSWORD_ENV_VAR).toCharArray();
    }
    if (password == null) {
        String pwFile = conf.get(KEYSTORE_PASSWORD_FILE_KEY);
        if (pwFile != null) {
            ClassLoader cl = Thread.currentThread().getContextClassLoader();
            URL pwdFile = cl.getResource(pwFile);
            if (pwdFile == null) {
                // Provided Password file does not exist
                throw new IOException("Password file does not exists");
            }
            try (InputStream is = pwdFile.openStream()) {
                password = IOUtils.toString(is).trim().toCharArray();
            }
        }
    }
    if (password == null) {
        password = KEYSTORE_PASSWORD_DEFAULT;
    }
    try {
        Path oldPath = constructOldPath(path);
        Path newPath = constructNewPath(path);
        keyStore = KeyStore.getInstance(SCHEME_NAME);
        FsPermission perm = null;
        if (fs.exists(path)) {
            // flush did not proceed to completion
            // _NEW should not exist
            if (fs.exists(newPath)) {
                throw new IOException(String.format("Keystore not loaded due to some inconsistency "
                        + "('%s' and '%s' should not exist together)!!", path, newPath));
            }
            perm = tryLoadFromPath(path, oldPath);
        } else {
            perm = tryLoadIncompleteFlush(oldPath, newPath);
        }
        // Need to save off permissions in case we need to
        // rewrite the keystore in flush()
        permissions = perm;
    } catch (KeyStoreException e) {
        throw new IOException("Can't create keystore", e);
    } catch (NoSuchAlgorithmException e) {
        throw new IOException("Can't load keystore " + path, e);
    } catch (CertificateException e) {
        throw new IOException("Can't load keystore " + path, e);
    }
    ReadWriteLock lock = new ReentrantReadWriteLock(true);
    readLock = lock.readLock();
    writeLock = lock.writeLock();
}

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From source file:interactivespaces.launcher.bootstrap.InteractiveSpacesFrameworkBootstrap.java

/**
 * Simple method to parse META-INF/services file for framework factory. Currently, it assumes the first non-commented
 * line is the class nodeName of the framework factory implementation.
 *
 * @return the created <tt>FrameworkFactory</tt> instance
 *
 * @throws Exception/* w  w  w.j  av  a  2 s . co m*/
 *           if any errors occur.
 **/
private FrameworkFactory getFrameworkFactory() throws Exception {
    // using the ServiceLoader to get a factory.
    ClassLoader classLoader = InteractiveSpacesFrameworkBootstrap.class.getClassLoader();
    URL url = classLoader.getResource(OSGI_FRAMEWORK_LAUNCH_FRAMEWORK_FACTORY);
    if (url != null) {
        BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
        try {
            for (String s = br.readLine(); s != null; s = br.readLine()) {
                // Try to load first non-empty, non-commented line.
                s = s.trim();
                if (!s.isEmpty() && s.charAt(0) != '#') {
                    return (FrameworkFactory) classLoader.loadClass(s).newInstance();
                }
            }
        } finally {
            if (br != null) {
                br.close();
            }
        }
    }

    throw new Exception("Could not find framework factory.");
}

---

From source file:org.apache.hadoop.fs.http.server.TestHttpFSServer.java

private void createHttpFSServer(boolean addDelegationTokenAuthHandler) throws Exception {
    File homeDir = TestDirHelper.getTestDir();
    Assert.assertTrue(new File(homeDir, "conf").mkdir());
    Assert.assertTrue(new File(homeDir, "log").mkdir());
    Assert.assertTrue(new File(homeDir, "temp").mkdir());
    HttpFSServerWebApp.setHomeDirForCurrentThread(homeDir.getAbsolutePath());

    File secretFile = new File(new File(homeDir, "conf"), "secret");
    Writer w = new FileWriter(secretFile);
    w.write("secret");
    w.close();/*from w  w w  .ja  v a  2 s . c o m*/

    //HDFS configuration
    File hadoopConfDir = new File(new File(homeDir, "conf"), "hadoop-conf");
    hadoopConfDir.mkdirs();
    String fsDefaultName = TestHdfsHelper.getHdfsConf().get(CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY);
    Configuration conf = new Configuration(false);
    conf.set(CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY, fsDefaultName);
    conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_ACLS_ENABLED_KEY, true);
    conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_XATTRS_ENABLED_KEY, true);
    File hdfsSite = new File(hadoopConfDir, "hdfs-site.xml");
    OutputStream os = new FileOutputStream(hdfsSite);
    conf.writeXml(os);
    os.close();

    //HTTPFS configuration
    conf = new Configuration(false);
    if (addDelegationTokenAuthHandler) {
        conf.set("httpfs.authentication.type", HttpFSKerberosAuthenticationHandlerForTesting.class.getName());
    }
    conf.set("httpfs.services.ext", MockGroups.class.getName());
    conf.set("httpfs.admin.group",
            HadoopUsersConfTestHelper.getHadoopUserGroups(HadoopUsersConfTestHelper.getHadoopUsers()[0])[0]);
    conf.set("httpfs.proxyuser." + HadoopUsersConfTestHelper.getHadoopProxyUser() + ".groups",
            HadoopUsersConfTestHelper.getHadoopProxyUserGroups());
    conf.set("httpfs.proxyuser." + HadoopUsersConfTestHelper.getHadoopProxyUser() + ".hosts",
            HadoopUsersConfTestHelper.getHadoopProxyUserHosts());
    conf.set("httpfs.authentication.signature.secret.file", secretFile.getAbsolutePath());
    conf.set("httpfs.hadoop.config.dir", hadoopConfDir.toString());
    File httpfsSite = new File(new File(homeDir, "conf"), "httpfs-site.xml");
    os = new FileOutputStream(httpfsSite);
    conf.writeXml(os);
    os.close();

    ClassLoader cl = Thread.currentThread().getContextClassLoader();
    URL url = cl.getResource("webapp");
    WebAppContext context = new WebAppContext(url.getPath(), "/webhdfs");
    Server server = TestJettyHelper.getJettyServer();
    server.addHandler(context);
    server.start();
    if (addDelegationTokenAuthHandler) {
        HttpFSServerWebApp.get().setAuthority(TestJettyHelper.getAuthority());
    }
}

---

From source file:io.siddhi.extension.io.file.FileSinkTestCase.java

@BeforeClass
public void init() {
    ClassLoader classLoader = FileSourceLineModeTestCase.class.getClassLoader();
    String rootPath = classLoader.getResource("files").getFile();
    sourceRoot = new File(rootPath + "/repo/sink_repo");
    dirUri = rootPath + "/new";
    sinkUri = rootPath + "/sink";
    fileToAppend = new File(dirUri);
    sinkRoot = new File(sinkUri);
}

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From source file:com.jeeframework.util.xml.XMLProperties.java

/**
 * Creates a new XMLPropertiesTest object.
 *
 * @param fileName the full path the file that properties should be read from
 *                 and written to./*from   w w  w .java  2s .c  om*/
 * @throws IOException if an error occurs loading the properties.
 */
public XMLProperties(String fileName) throws IOException {
    Assert.notNull(fileName, "fileName  must not be null");
    ClassLoader clToUse = ClassUtils.getDefaultClassLoader();
    URL url = clToUse.getResource(fileName);
    if (url == null) {
        throw new FileNotFoundException(fileName + "  not found  ");
    }
    InputStream is = null;
    try {
        URLConnection con = url.openConnection();
        con.setUseCaches(false);
        is = con.getInputStream();
        Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
        buildDoc(reader);
    } finally {
        if (is != null) {
            is.close();
        }
    }

}

---

From source file:org.suren.autotest.web.framework.selenium.SeleniumEngine.java

/**
 * engine/*from   w w w.j a v  a2s . c o m*/
 * @param enginePro
 * @throws MalformedURLException 
 */
private void loadDefaultEnginePath(ClassLoader classLoader, Properties enginePro) throws MalformedURLException {
    Enumeration<URL> resurceUrls = null;
    URL defaultResourceUrl = null;
    try {
        resurceUrls = classLoader.getResources(ENGINE_CONFIG_FILE_NAME);
        defaultResourceUrl = classLoader.getResource(ENGINE_CONFIG_FILE_NAME);
    } catch (IOException e) {
        logger.error("Engine properties loading error.", e);
    }

    if (resurceUrls == null) {
        return;
    }

    //?jar
    while (resurceUrls.hasMoreElements()) {
        URL url = resurceUrls.nextElement();

        try {
            loadFromURL(enginePro, url);
        } catch (IOException e) {
            logger.error("loading engine error.", e);
        }
    }

    try {
        //?
        loadFromURL(enginePro, defaultResourceUrl);
    } catch (IOException e) {
        logger.error("loading engine error.", e);
    }

    loadDriverFromMapping(classLoader, enginePro);
}

---

From source file:dk.statsbiblioteket.util.XProperties.java

/**
 * Store the properties as the resource named by resourceName.
 * The ressource is first searched for in the same order as for load(). If
 * found and in writable directory, it is replaced.
 * If it does not exist, a new file is created at the default directory,
 * with the name resourceName.//from   ww  w  .j  a  v  a2s  .  c o m
 * Note: Trying to replace a resource placed anywhere else than a
 * write-enabled directory, will give an IOException.
 *
 * @param resourceName the name of the resource to store the properties to
 * @throws IOException if the resource could not be stored
 */
public synchronized void store(String resourceName) throws IOException {
    log.trace(String.format("Storing properties to resource %s", resourceName));
    log.trace("Locating resource");
    ClassLoader loader = Thread.currentThread().getContextClassLoader();
    URL resourceURL = loader.getResource(resourceName);
    File f;
    if (new File(defaultPath, resourceName).isFile()) {
        f = new File(defaultPath, resourceName);
    } else if (new File(resourceName).isFile()) {
        f = new File(resourceName);
    } else if (resourceURL != null && new File(resourceURL.getPath()).exists()) {
        f = new File(resourceURL.getPath());
    } else {
        // TODO: Does not handle "C:\whatever
        if (resourceName.startsWith(File.separator)) {
            f = new File(resourceName);
        } else {
            f = new File(defaultPath, resourceName);
        }
    }
    FileOutputStream filestream = new FileOutputStream(f);
    store(filestream, null);
}

---

From source file:dk.statsbiblioteket.util.XProperties.java

/**
 * Fetch stored properties from the given resource. This uses
 * ContextClassLoader, so as long as the
 * resource is in the CLASSPATH, it should be accessible.
 *
 * The resource is searched for in the following order:
 * - If the resource can be found in defaultPath, use this
 * - Else if the resource can be found in current directory use this
 * - Else if the resource can be found in classpath, use this
 *
 * @param resourceName      the name of the resource containing the properties
 * @param ignoreNonExisting don't throw an exception if the resource can not
 *                          be found/*from  w  w w.  j  av a2s  .  c om*/
 * @param ignoreMalformed   don't throw an exception if the resource is
 *                          malformed
 * @throws InvalidPropertiesException if the ignores aren't true and the
 *                                    resource contains unknown classes
 * @throws IOException                thrown if there are IO errors during read OR if
 *                                    resource is not found and ignoreNonExisting is false.
 */
public synchronized void load(String resourceName, boolean ignoreNonExisting, boolean ignoreMalformed)
        throws InvalidPropertiesException, IOException {
    log.trace(String.format("Loading resource %s with" + " ignoreNonExisting %s and" + " ignoreMalformed %s",
            resourceName, ignoreNonExisting, ignoreMalformed));
    this.resourceName = resourceName;
    clear();
    InputStream instream;
    log.trace("Locating resource '" + resourceName + "'");
    ClassLoader loader = Thread.currentThread().getContextClassLoader();
    URL resourceURL = loader.getResource(resourceName);
    if (new File(defaultPath, resourceName).isFile()) {
        instream = new FileInputStream(new File(defaultPath, resourceName));
    } else if (new File(resourceName).isFile()) {
        instream = new FileInputStream(new File(resourceName));
    } else if (resourceURL != null) {
        instream = resourceURL.openStream();
    } else {
        String msg = String.format("Could not locate resource %s", resourceName);
        if (ignoreNonExisting) {
            log.debug(msg + ", ignoring");
            return;
        }
        log.warn(msg);
        throw new FileNotFoundException(msg);
    }

    log.trace("Loading resource");
    if (ignoreMalformed) {
        try {
            load(instream);
        } catch (InvalidPropertiesException e) {
            //Ignore
        }
    } else {
        load(instream);
    }
    log.debug(String.format("Properties resource \"%s\" loaded", resourceName));
}

---

From source file:io.siddhi.extension.io.file.FileSourceBinaryModeTestCase.java

@BeforeClass
public void init() {
    ClassLoader classLoader = FileSourceBinaryModeTestCase.class.getClassLoader();
    String rootPath = classLoader.getResource("files").getFile();
    sourceRoot = new File(rootPath + "/repo");
    dirUri = rootPath + "/new";
    newRoot = new File(dirUri);
    moveAfterProcessDir = rootPath + "/moved_files";
}

---

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