Examples with FileInputStream java.io.FileInputStream used on opensource projects

Example 51 with FileInputStream

use of java.io.FileInputStream in project groovy by apache.

the class TemplateServlet method getTemplate.

/**
     * Gets the template created by the underlying engine parsing the request.
     *
     * <p>
     * This method looks up a simple (weak) hash map for an existing template
     * object that matches the source file. If the source file didn't change in
     * length and its last modified stamp hasn't changed compared to a precompiled
     * template object, this template is used. Otherwise, there is no or an
     * invalid template object cache entry, a new one is created by the underlying
     * template engine. This new instance is put to the cache for consecutive
     * calls.
     *
     * @return The template that will produce the response text.
     * @param file The file containing the template source.
     * @throws ServletException If the request specified an invalid template source file
     */
protected Template getTemplate(File file) throws ServletException {
    String key = file.getAbsolutePath();
    Template template = findCachedTemplate(key, file);
    //
    if (template == null) {
        try {
            template = createAndStoreTemplate(key, new FileInputStream(file), file);
        } catch (Exception e) {
            throw new ServletException("Creation of template failed: " + e, e);
        }
    }
    return template;
}

Example 52 with FileInputStream

use of java.io.FileInputStream in project hadoop by apache.

the class Credentials method readTokenStorageFile.

/**
   * Convenience method for reading a token storage file and loading its Tokens.
   * @param filename
   * @param conf
   * @throws IOException
   */
public static Credentials readTokenStorageFile(File filename, Configuration conf) throws IOException {
    DataInputStream in = null;
    Credentials credentials = new Credentials();
    try {
        in = new DataInputStream(new BufferedInputStream(new FileInputStream(filename)));
        credentials.readTokenStorageStream(in);
        return credentials;
    } catch (IOException ioe) {
        throw new IOException("Exception reading " + filename, ioe);
    } finally {
        IOUtils.cleanup(LOG, in);
    }
}

Example 53 with FileInputStream

use of java.io.FileInputStream in project flink by apache.

the class AbstractParameterToolTest method validate.

protected void validate(ParameterTool parameter) {
    ClosureCleaner.ensureSerializable(parameter);
    Assert.assertEquals("myInput", parameter.getRequired("input"));
    Assert.assertEquals("myDefaultValue", parameter.get("output", "myDefaultValue"));
    Assert.assertEquals(null, parameter.get("whatever"));
    Assert.assertEquals(15L, parameter.getLong("expectedCount", -1L));
    Assert.assertTrue(parameter.getBoolean("thisIsUseful", true));
    Assert.assertEquals(42, parameter.getByte("myDefaultByte", (byte) 42));
    Assert.assertEquals(42, parameter.getShort("myDefaultShort", (short) 42));
    Configuration config = parameter.getConfiguration();
    Assert.assertEquals(15L, config.getLong("expectedCount", -1L));
    Properties props = parameter.getProperties();
    Assert.assertEquals("myInput", props.getProperty("input"));
    props = null;
    // -------- test the default file creation ------------
    try {
        String pathToFile = tmp.newFile().getAbsolutePath();
        parameter.createPropertiesFile(pathToFile);
        Properties defaultProps = new Properties();
        try (FileInputStream fis = new FileInputStream(pathToFile)) {
            defaultProps.load(fis);
        }
        Assert.assertEquals("myDefaultValue", defaultProps.get("output"));
        Assert.assertEquals("-1", defaultProps.get("expectedCount"));
        Assert.assertTrue(defaultProps.containsKey("input"));
    } catch (IOException e) {
        Assert.fail(e.getMessage());
        e.printStackTrace();
    }
}

Example 54 with FileInputStream

use of java.io.FileInputStream in project flink by apache.

the class SSLUtils method createSSLServerContext.

/**
	 * Creates the SSL Context for the server if SSL is configured
	 *
	 * @param sslConfig
	 *        The application configuration
	 * @return The SSLContext object which can be used by the ssl transport server
	 * 	       Returns null if SSL is disabled
	 * @throws Exception
	 *         Thrown if there is any misconfiguration
	 */
public static SSLContext createSSLServerContext(Configuration sslConfig) throws Exception {
    Preconditions.checkNotNull(sslConfig);
    SSLContext serverSSLContext = null;
    if (getSSLEnabled(sslConfig)) {
        LOG.debug("Creating server SSL context from configuration");
        String keystoreFilePath = sslConfig.getString(ConfigConstants.SECURITY_SSL_KEYSTORE, null);
        String keystorePassword = sslConfig.getString(ConfigConstants.SECURITY_SSL_KEYSTORE_PASSWORD, null);
        String certPassword = sslConfig.getString(ConfigConstants.SECURITY_SSL_KEY_PASSWORD, null);
        String sslProtocolVersion = sslConfig.getString(ConfigConstants.SECURITY_SSL_PROTOCOL, ConfigConstants.DEFAULT_SECURITY_SSL_PROTOCOL);
        KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
        FileInputStream keyStoreFile = null;
        try {
            keyStoreFile = new FileInputStream(new File(keystoreFilePath));
            ks.load(keyStoreFile, keystorePassword.toCharArray());
        } finally {
            if (keyStoreFile != null) {
                keyStoreFile.close();
            }
        }
        // Set up key manager factory to use the server key store
        KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
        kmf.init(ks, certPassword.toCharArray());
        // Initialize the SSLContext
        serverSSLContext = SSLContext.getInstance(sslProtocolVersion);
        serverSSLContext.init(kmf.getKeyManagers(), null, null);
    }
    return serverSSLContext;
}

Example 55 with FileInputStream

use of java.io.FileInputStream in project hadoop by apache.

the class MiniKdc method resetDefaultRealm.

private void resetDefaultRealm() throws IOException {
    InputStream templateResource = new FileInputStream(getKrb5conf().getAbsolutePath());
    String content = IOUtil.readInput(templateResource);
    content = content.replaceAll("default_realm = .*\n", "default_realm = " + getRealm() + "\n");
    IOUtil.writeFile(content, getKrb5conf());
}