Example usage for org.apache.hadoop.crypto.key KeyProviderFactory KEY_PROVIDER_PATH

Introduction

In this page you can find the example usage for org.apache.hadoop.crypto.key KeyProviderFactory KEY_PROVIDER_PATH.

Prototype

String KEY_PROVIDER_PATH

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Usage

From source file:co.cask.cdap.security.store.KMSSecureStore.java

License:Apache License

/**
 * Sets up the key provider. It reads the KMS URI from Hadoop conf to initialize the provider.
 * @param conf Hadoop configuration. core-site.xml contains the key provider URI.
 * @param namespaceQueryAdmin For querying namespace.
 * @throws IllegalArgumentException If the key provider URI is not set.
 * @throws URISyntaxException If the key provider path is not a valid URI.
 * @throws IOException If the authority or the port could not be read from the provider URI.
 *///from   w w  w.  ja  v a 2s  .c o  m
@Inject
KMSSecureStore(Configuration conf, NamespaceQueryAdmin namespaceQueryAdmin)
        throws IOException, URISyntaxException {
    this.conf = conf;
    this.namespaceQueryAdmin = namespaceQueryAdmin;
    try {
        String keyProviderPath = conf.get(KeyProviderFactory.KEY_PROVIDER_PATH);
        if (Strings.isNullOrEmpty(keyProviderPath)) {
            throw new IllegalArgumentException("Could not find the key provider URI. Please make sure that "
                    + "hadoop.security.key.provider.path is set to the KMS URI in your " + "core-site.xml.");
        }
        URI providerUri = new URI(keyProviderPath);
        provider = KMSClientProvider.Factory.get(providerUri, conf);
    } catch (URISyntaxException e) {
        throw new URISyntaxException(
                "Secure store could not be loaded. The value for hadoop.security.key.provider.path"
                        + "in core-site.xml is not a valid URI.",
                e.getReason());
    } catch (IOException e) {
        throw new IOException("Secure store could not be loaded. KMS KeyProvider failed to initialize", e);
    }
    LOG.debug("KMS backed secure store initialized successfully.");
}

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