Examples with DataEventType org.jumpmind.symmetric.io.data.DataEventType used on opensource projects

Example 16 with DataEventType

use of org.jumpmind.symmetric.io.data.DataEventType in project symmetric-ds by JumpMind.

the class TransformWriter method create.

protected List<TransformedData> create(DataContext context, DataEventType dataEventType, TransformTable transformation, Map<String, String> sourceKeyValues, Map<String, String> oldSourceValues, Map<String, String> sourceValues) throws IgnoreRowException {
    List<TransformColumn> columns = transformation.getPrimaryKeyColumns();
    if (columns == null || columns.size() == 0) {
        log.error("No primary key defined for the transformation: {}", transformation.getTransformId());
        return new ArrayList<TransformedData>(0);
    } else {
        List<TransformedData> datas = new ArrayList<TransformedData>();
        TransformedData data = new TransformedData(transformation, dataEventType, sourceKeyValues, oldSourceValues, sourceValues);
        datas.add(data);
        DataEventType eventType = data.getSourceDmlType();
        for (TransformColumn transformColumn : columns) {
            IncludeOnType includeOn = transformColumn.getIncludeOn();
            if (includeOn == IncludeOnType.ALL || (includeOn == IncludeOnType.INSERT && eventType == DataEventType.INSERT) || (includeOn == IncludeOnType.UPDATE && eventType == DataEventType.UPDATE) || (includeOn == IncludeOnType.DELETE && eventType == DataEventType.DELETE)) {
                List<TransformedData> newDatas = null;
                try {
                    Object columnValue = transformColumn(context, data, transformColumn, sourceValues, oldSourceValues);
                    if (columnValue instanceof List) {
                        @SuppressWarnings("unchecked") List<String> values = (List<String>) columnValue;
                        if (values.size() > 0) {
                            data.put(transformColumn, values.get(0), oldSourceValues != null ? values.get(0) : null, true);
                            if (values.size() > 1) {
                                if (newDatas == null) {
                                    newDatas = new ArrayList<TransformedData>(values.size() - 1);
                                }
                                for (int i = 1; i < values.size(); i++) {
                                    TransformedData newData = data.copy();
                                    newData.put(transformColumn, values.get(i), oldSourceValues != null ? values.get(i) : null, true);
                                    newDatas.add(newData);
                                }
                            }
                        } else {
                            throw new IgnoreRowException();
                        }
                    } else if (columnValue instanceof NewAndOldValue) {
                        data.put(transformColumn, ((NewAndOldValue) columnValue).getNewValue(), oldSourceValues != null ? ((NewAndOldValue) columnValue).getOldValue() : null, true);
                    } else {
                        data.put(transformColumn, (String) columnValue, oldSourceValues != null ? (String) columnValue : null, true);
                    }
                } catch (IgnoreColumnException e) {
                // Do nothing. We are suppose to ignore the column.
                }
                if (newDatas != null) {
                    datas.addAll(newDatas);
                    newDatas = null;
                }
            }
        }
        return datas;
    }
}