Examples of ELService

org.apache.oozie.service.ELService

The ELService creates {@link ELEvaluator} instances preconfigured with constants and functions defined in theconfiguration.

The following configuration parameters control the EL service:

{@link #CONF_CONSTANTS} listof constant definitions to be available for EL evaluations.

{@link #CONF_FUNCTIONS} list of function definitionsto be available for EL evalations.

Definitions must be separated by a comma, definitions are trimmed.

The syntax for a constant definition is PREFIX:NAME=CLASS_NAME#CONSTANT_NAME.

The syntax for a constant definition is PREFIX:NAME=CLASS_NAME#METHOD_NAME.

     * @return the resolved application name.
     *
     * @throws Exception thrown if the name could not be EL resolved.
     */
    public static String resolveAppName(String name, Configuration conf) throws Exception {
        ELService elService = Services.get().get(ELService.class);
        ELEvaluator elEvaluator = elService.createEvaluator("job-submit");
        Map<String, Object> map = new HashMap<String, Object>();
        for (Map.Entry<String, String> entry : conf) {
            map.put(entry.getKey(), entry.getValue());
        }
        elEvaluator.getContext().setVariables(map);

     * @return the resolved application name.
     *
     * @throws Exception thrown if the name could not be EL resolved.
     */
    public static String resolveAppName(String name, Configuration conf) throws Exception {
        ELService elService = Services.get().get(ELService.class);
        ELEvaluator elEvaluator = elService.createEvaluator("job-submit");
        Map<String, Object> map = new HashMap<String, Object>();
        for (Map.Entry<String, String> entry : conf) {
            map.put(entry.getKey(), entry.getValue());
        }
        elEvaluator.getContext().setVariables(map);

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Examples of ELService

Examples of org.apache.oozie.service.ELService

Examples of org.apache.oozie.service.ELService