Package org.apache.oozie.util

Examples of org.apache.oozie.util.ELEvaluator

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        WorkflowActionBean action = new WorkflowActionBean();
        action.setId("actionId");
        action.setName("actionName");

        ELEvaluator eval = Services.get().get(ELService.class).createEvaluator("workflow");
        DagELFunctions.configureEvaluator(eval, wf, action);

        assertEquals(true, (boolean) eval.evaluate("${fs:exists(wf:conf('file1'))}", Boolean.class));
        assertEquals(false, (boolean) eval.evaluate("${fs:exists(wf:conf('file2'))}", Boolean.class));
        assertEquals(true, (boolean) eval.evaluate("${fs:exists(wf:conf('dir'))}", Boolean.class));
        assertEquals(false, (boolean) eval.evaluate("${fs:isDir(wf:conf('file1'))}", Boolean.class));
        assertEquals(0, (int) eval.evaluate("${fs:fileSize(wf:conf('file1'))}", Integer.class));
        assertEquals(-1, (int) eval.evaluate("${fs:fileSize(wf:conf('file2'))}", Integer.class));
        assertEquals(3, (int) eval.evaluate("${fs:dirSize(wf:conf('dir'))}", Integer.class));
        assertEquals(-1, (int) eval.evaluate("${fs:blockSize(wf:conf('file2'))}", Integer.class));
        assertTrue(eval.evaluate("${fs:blockSize(wf:conf('file1'))}", Integer.class) > 0);
    }
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     *
     * @param conf : Configuration containing property variables
     * @return configured ELEvaluator
     */
    public static ELEvaluator createELEvaluatorForGroup(Configuration conf, String group) {
        ELEvaluator eval = Services.get().get(ELService.class).createEvaluator(group);
        setConfigToEval(eval, conf);
        return eval;
    }
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        return createInstancesELEvaluator("coord-action-create", event, appInst, conf);
    }

    public static ELEvaluator createInstancesELEvaluator(String tag, Element event, SyncCoordAction appInst,
                                                         Configuration conf) throws Exception {
        ELEvaluator eval = Services.get().get(ELService.class).createEvaluator(tag);
        setConfigToEval(eval, conf);
        SyncCoordDataset ds = getDSObject(event);
        CoordELFunctions.configureEvaluator(eval, ds, appInst);
        return eval;
    }
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        return eval;
    }

    public static ELEvaluator createELEvaluatorForDataEcho(Configuration conf, String group,
                                                           HashMap<String, String> dataNameList) throws Exception {
        ELEvaluator eval = createELEvaluatorForGroup(conf, group);
        for (Iterator<String> it = dataNameList.keySet().iterator(); it.hasNext();) {
            String key = it.next();
            String value = dataNameList.get(key);
            eval.setVariable("oozie.dataname." + key, value);
        }
        return eval;
    }
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     * @return configured ELEvaluator
     * @throws Exception : If there is any date-time string in wrong format, the exception is thrown
     */
    public static ELEvaluator createLazyEvaluator(Date actualTime, Date nominalTime, Element dEvent, Configuration conf)
            throws Exception {
        ELEvaluator eval = Services.get().get(ELService.class).createEvaluator("coord-action-start");
        setConfigToEval(eval, conf);
        SyncCoordDataset ds = getDSObject(dEvent);
        SyncCoordAction appInst = new SyncCoordAction();
        appInst.setNominalTime(nominalTime);
        appInst.setActualTime(actualTime);
        CoordELFunctions.configureEvaluator(eval, ds, appInst);
        eval.setVariable(CoordELFunctions.CONFIGURATION, conf);
        return eval;
    }
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     * @param conf
     * @return
     * @throws Exception
     */
    public static ELEvaluator createSLAEvaluator(Date nominalTime, Configuration conf) throws Exception {
        ELEvaluator eval = Services.get().get(ELService.class).createEvaluator("coord-sla-create");
        setConfigToEval(eval, conf);
        SyncCoordAction appInst = new SyncCoordAction();// TODO:
        appInst.setNominalTime(nominalTime);
        CoordELFunctions.configureEvaluator(eval, null, appInst);
        return eval;
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     * @param conf :Configuration to substitute any variables
     * @return configured ELEvaluator
     * @throws Exception : If there is any date-time string in wrong format, the exception is thrown
     */
    public static ELEvaluator createDataEvaluator(Element eJob, Configuration conf, String actionId) throws Exception {
        ELEvaluator e = Services.get().get(ELService.class).createEvaluator("coord-action-start");
        setConfigToEval(e, conf);
        SyncCoordAction appInst = new SyncCoordAction();
        String strNominalTime = eJob.getAttributeValue("action-nominal-time");
        if (strNominalTime != null) {
            appInst.setNominalTime(DateUtils.parseDateUTC(strNominalTime));
            appInst.setActionId(actionId);
            appInst.setName(eJob.getAttributeValue("name"));
        }
        String strActualTime = eJob.getAttributeValue("action-actual-time");
        if (strActualTime != null) {
            appInst.setActualTime(DateUtils.parseDateUTC(strActualTime));
        }
        CoordELFunctions.configureEvaluator(e, null, appInst);
        Element events = eJob.getChild("input-events", eJob.getNamespace());
        if (events != null) {
            for (Element data : (List<Element>) events.getChildren("data-in", eJob.getNamespace())) {
                if (data.getChild("uris", data.getNamespace()) != null) {
                    String uris = data.getChild("uris", data.getNamespace()).getTextTrim();
                    uris = uris.replaceAll(CoordELFunctions.INSTANCE_SEPARATOR, CoordELFunctions.DIR_SEPARATOR);
                    e.setVariable(".datain." + data.getAttributeValue("name"), uris);
                }
                else {
                }
                if (data.getChild("unresolved-instances", data.getNamespace()) != null) {
                    e.setVariable(".datain." + data.getAttributeValue("name") + ".unresolved", "true"); // TODO:
                    // check
                    // null
                }
            }
        }
        events = eJob.getChild("output-events", eJob.getNamespace());
        if (events != null) {
            for (Element data : (List<Element>) events.getChildren("data-out", eJob.getNamespace())) {
                if (data.getChild("uris", data.getNamespace()) != null) {
                    String uris = data.getChild("uris", data.getNamespace()).getTextTrim();
                    uris = uris.replaceAll(CoordELFunctions.INSTANCE_SEPARATOR, CoordELFunctions.DIR_SEPARATOR);
                    e.setVariable(".dataout." + data.getAttributeValue("name"), uris);
                }
                else {
                }// TODO
                if (data.getChild("unresolved-instances", data.getNamespace()) != null) {
                    e.setVariable(".dataout." + data.getAttributeValue("name") + ".unresolved", "true"); // TODO:
                    // check
                    // null
                }
            }
        }
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     * @param strDate : Date-time
     * @return configured ELEvaluator
     * @throws Exception If there is any date-time string in wrong format, the exception is thrown
     */
    public static ELEvaluator createURIELEvaluator(String strDate) throws Exception {
        ELEvaluator eval = new ELEvaluator();
        Calendar date = Calendar.getInstance(TimeZone.getTimeZone("UTC")); // TODO:UTC
        // always???
        date.setTime(DateUtils.parseDateUTC(strDate));
        eval.setVariable("YEAR", date.get(Calendar.YEAR));
        eval.setVariable("MONTH", make2Digits(date.get(Calendar.MONTH) + 1));
        eval.setVariable("DAY", make2Digits(date.get(Calendar.DAY_OF_MONTH)));
        eval.setVariable("HOUR", make2Digits(date.get(Calendar.HOUR_OF_DAY)));
        eval.setVariable("MINUTE", make2Digits(date.get(Calendar.MINUTE)));
        return eval;
    }
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     *
     * @return coordinator action start time
     * @throws Exception if unable to format the Date object to String
     */
    public static String ph2_coord_actualTime() throws Exception {
        ELEvaluator eval = ELEvaluator.getCurrent();
        SyncCoordAction coordAction = (SyncCoordAction) eval.getVariable(COORD_ACTION);
        if (coordAction == null) {
            throw new RuntimeException("Associated Application instance should be defined with key " + COORD_ACTION);
        }
        return DateUtils.formatDateUTC(coordAction.getActualTime());
    }
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     * @return the list of URI's separated by INSTANCE_SEPARATOR <p/> if there are unresolved EL function (i.e. latest)
     *         , echo back <p/> the function without resolving the function.
     */
    public static String ph3_coord_dataIn(String dataInName) {
        String uris = "";
        ELEvaluator eval = ELEvaluator.getCurrent();
        uris = (String) eval.getVariable(".datain." + dataInName);
        Boolean unresolved = (Boolean) eval.getVariable(".datain." + dataInName + ".unresolved");
        if (unresolved != null && unresolved.booleanValue() == true) {
            return "${coord:dataIn('" + dataInName + "')}";
        }
        return uris;
    }
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