Examples with ConfigURLProvider org.opendaylight.controller.blueprint.ext.DataStoreAppConfigDefaultXMLReader.ConfigURLProvider used on opensource projects

Example 1 with ConfigURLProvider

use of org.opendaylight.controller.blueprint.ext.DataStoreAppConfigDefaultXMLReader.ConfigURLProvider in project controller by opendaylight.

the class DataStoreAppConfigMetadata method createDefaultInstance.

private DataObject createDefaultInstance() {
    try {
        ConfigURLProvider inputStreamProvider = appConfigFileName -> {
            File appConfigFile = new File(DEFAULT_APP_CONFIG_FILE_PATH, appConfigFileName);
            LOG.debug("{}: parsePossibleDefaultAppConfigXMLFile looking for file {}", logName(), appConfigFile.getAbsolutePath());
            if (!appConfigFile.exists()) {
                return Optional.absent();
            }
            LOG.debug("{}: Found file {}", logName(), appConfigFile.getAbsolutePath());
            return Optional.of(appConfigFile.toURI().toURL());
        };
        DataStoreAppConfigDefaultXMLReader<?> reader = new DataStoreAppConfigDefaultXMLReader<>(logName(), defaultAppConfigFileName, getOSGiService(DOMSchemaService.class), bindingSerializer, bindingContext, inputStreamProvider);
        return reader.createDefaultInstance((schemaContext, dataSchema) -> {
            // Fallback if file cannot be read, try XML from Config
            NormalizedNode<?, ?> dataNode = parsePossibleDefaultAppConfigElement(schemaContext, dataSchema);
            if (dataNode == null) {
                // or, as last resort, defaults from the model
                return bindingContext.newDefaultNode(dataSchema);
            } else {
                return dataNode;
            }
        });
    } catch (final ConfigXMLReaderException | IOException | SAXException | XMLStreamException | ParserConfigurationException | URISyntaxException e) {
        if (e.getCause() == null) {
            setFailureMessage(e.getMessage());
        } else {
            setFailure(e.getMessage(), e);
        }
        return null;
    }
}