Examples with QueueXmlReader com.google.apphosting.utils.config.QueueXmlReader used on opensource projects

Example 1 with QueueXmlReader

use of com.google.apphosting.utils.config.QueueXmlReader in project appengine-java-standard by GoogleCloudPlatform.

the class LocalTaskQueue method parseQueueConfiguration.

/**
 * Parse the queue configuration from application directory, either from xml or yaml configuration
 *
 * @param appDir the application war directory.
 * @param queueXmlPath a user provided path that overrides the default path of queue.xml. This is
 *     used by local unit tests.
 * @param queueYamlPath a user provided path that overrides the default path of queue.yaml. This
 *     is used by local unit tests.
 * @return the parsed queue configuration.
 * @throws ConfigurationException if both yaml and xml path are not null.
 */
QueueXml parseQueueConfiguration(String appDir, @Nullable final String queueXmlPath, @Nullable final String queueYamlPath) {
    if (queueXmlPath != null && queueYamlPath != null) {
        throw new ConfigurationException("Found both queue.xml and queue.yaml. Please use queue.yaml and remove queue.xml. " + "For more information: " + DOC_LINK);
    }
    QueueXml resultFromXml = null;
    QueueXml resultFromYaml = null;
    if (queueXmlPath != null) {
        // user wants a custom queue.xml loaded
        QueueXmlReader xmlReader = new QueueXmlReader(appDir) {

            @Override
            public String getFilename() {
                return queueXmlPath;
            }
        };
        resultFromXml = xmlReader.readQueueXml();
    } else if (queueYamlPath != null) {
        // user wants a custom queue.yaml loaded
        QueueYamlReader yamlReader = new QueueYamlReader(appDir) {

            @Override
            public String getFilename() {
                return queueYamlPath;
            }
        };
        resultFromYaml = yamlReader.parse();
    } else {
        // Tries default path for xml or yaml configuration.
        QueueXmlReader xmlReader = new QueueXmlReader(appDir);
        // TODO Consider reloading queue.xml if changed.
        // resultFromXml would be null iff the xml file does not exist.
        resultFromXml = xmlReader.readQueueXml();
        QueueYamlReader yamlReader = new QueueYamlReader(Paths.get(appDir, "WEB-INF").toString());
        resultFromYaml = yamlReader.parse();
    }
    if (!ApiUtils.isPromotingYaml()) {
        return (resultFromXml != null) ? resultFromXml : resultFromYaml;
    }
    // When promoting yaml, given proper messages if queue.xml is present.
    if (resultFromXml != null && resultFromYaml == null) {
        logger.warning("Using queue.xml. Please migrate to queue.yaml. For more information: " + DOC_LINK);
    }
    return (resultFromYaml != null) ? resultFromYaml : resultFromXml;
}