Examples with ANull org.apache.asterix.om.base.ANull used on opensource projects

Example 1 with ANull

use of org.apache.asterix.om.base.ANull in project asterixdb by apache.

the class FeedConnectionTupleTranslator method createFeedConnFromRecord.

private FeedConnection createFeedConnFromRecord(ARecord feedConnRecord) {
    String dataverseName = ((AString) feedConnRecord.getValueByPos(MetadataRecordTypes.FEED_CONN_DATAVERSE_NAME_FIELD_INDEX)).getStringValue();
    String feedName = ((AString) feedConnRecord.getValueByPos(MetadataRecordTypes.FEED_CONN_FEED_NAME_FIELD_INDEX)).getStringValue();
    String datasetName = ((AString) feedConnRecord.getValueByPos(MetadataRecordTypes.FEED_CONN_DATASET_NAME_FIELD_INDEX)).getStringValue();
    String outputType = ((AString) feedConnRecord.getValueByPos(MetadataRecordTypes.FEED_CONN_OUTPUT_TYPE_INDEX)).getStringValue();
    String policyName = ((AString) feedConnRecord.getValueByPos(MetadataRecordTypes.FEED_CONN_POLICY_FIELD_INDEX)).getStringValue();
    ArrayList<FunctionSignature> appliedFunctions = null;
    Object o = feedConnRecord.getValueByPos(MetadataRecordTypes.FEED_CONN_APPLIED_FUNCTIONS_FIELD_INDEX);
    IACursor cursor;
    if (!(o instanceof ANull) && !(o instanceof AMissing)) {
        appliedFunctions = new ArrayList<>();
        FunctionSignature functionSignature;
        cursor = ((AUnorderedList) feedConnRecord.getValueByPos(MetadataRecordTypes.FEED_CONN_APPLIED_FUNCTIONS_FIELD_INDEX)).getCursor();
        while (cursor.next()) {
            //TODO: allow different arity
            functionSignature = new FunctionSignature(dataverseName, ((AString) cursor.get()).getStringValue(), 1);
            appliedFunctions.add(functionSignature);
        }
    }
    return new FeedConnection(dataverseName, feedName, datasetName, appliedFunctions, policyName, outputType);
}