Examples with PartitioningStrategy org.apache.asterix.metadata.entities.InternalDatasetDetails.PartitioningStrategy used on opensource projects

Example 1 with PartitioningStrategy

use of org.apache.asterix.metadata.entities.InternalDatasetDetails.PartitioningStrategy in project asterixdb by apache.

the class DatasetTupleTranslator method createDatasetFromARecord.

protected Dataset createDatasetFromARecord(ARecord datasetRecord) throws HyracksDataException {
    String dataverseName = ((AString) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATAVERSENAME_FIELD_INDEX)).getStringValue();
    String datasetName = ((AString) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATASETNAME_FIELD_INDEX)).getStringValue();
    String typeName = ((AString) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATATYPENAME_FIELD_INDEX)).getStringValue();
    String typeDataverseName = ((AString) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATATYPEDATAVERSENAME_FIELD_INDEX)).getStringValue();
    DatasetType datasetType = DatasetType.valueOf(((AString) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATASETTYPE_FIELD_INDEX)).getStringValue());
    IDatasetDetails datasetDetails = null;
    int datasetId = ((AInt32) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATASETID_FIELD_INDEX)).getIntegerValue();
    int pendingOp = ((AInt32) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_PENDINGOP_FIELD_INDEX)).getIntegerValue();
    String nodeGroupName = ((AString) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_GROUPNAME_FIELD_INDEX)).getStringValue();
    String compactionPolicy = ((AString) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_COMPACTION_POLICY_FIELD_INDEX)).getStringValue();
    IACursor cursor = ((AOrderedList) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_COMPACTION_POLICY_PROPERTIES_FIELD_INDEX)).getCursor();
    Map<String, String> compactionPolicyProperties = new LinkedHashMap<>();
    String key;
    String value;
    while (cursor.next()) {
        ARecord field = (ARecord) cursor.get();
        key = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_NAME_FIELD_INDEX)).getStringValue();
        value = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_VALUE_FIELD_INDEX)).getStringValue();
        compactionPolicyProperties.put(key, value);
    }
    switch(datasetType) {
        case INTERNAL:
            {
                ARecord datasetDetailsRecord = (ARecord) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_INTERNALDETAILS_FIELD_INDEX);
                FileStructure fileStructure = FileStructure.valueOf(((AString) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.INTERNAL_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX)).getStringValue());
                PartitioningStrategy partitioningStrategy = PartitioningStrategy.valueOf(((AString) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.INTERNAL_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX)).getStringValue());
                cursor = ((AOrderedList) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.INTERNAL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX)).getCursor();
                List<List<String>> partitioningKey = new ArrayList<>();
                List<IAType> partitioningKeyType = new ArrayList<>();
                AOrderedList fieldNameList;
                while (cursor.next()) {
                    fieldNameList = (AOrderedList) cursor.get();
                    IACursor nestedFieldNameCursor = (fieldNameList.getCursor());
                    List<String> nestedFieldName = new ArrayList<>();
                    while (nestedFieldNameCursor.next()) {
                        nestedFieldName.add(((AString) nestedFieldNameCursor.get()).getStringValue());
                    }
                    partitioningKey.add(nestedFieldName);
                    partitioningKeyType.add(BuiltinType.ASTRING);
                }
                boolean autogenerated = ((ABoolean) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.INTERNAL_DETAILS_ARECORD_AUTOGENERATED_FIELD_INDEX)).getBoolean();
                // Check if there is a filter field.
                List<String> filterField = null;
                int filterFieldPos = datasetDetailsRecord.getType().getFieldIndex(InternalDatasetDetails.FILTER_FIELD_NAME);
                if (filterFieldPos >= 0) {
                    filterField = new ArrayList<>();
                    cursor = ((AOrderedList) datasetDetailsRecord.getValueByPos(filterFieldPos)).getCursor();
                    while (cursor.next()) {
                        filterField.add(((AString) cursor.get()).getStringValue());
                    }
                }
                // Read a field-source-indicator field.
                List<Integer> keyFieldSourceIndicator = new ArrayList<>();
                int keyFieldSourceIndicatorIndex = datasetDetailsRecord.getType().getFieldIndex(InternalDatasetDetails.KEY_FILD_SOURCE_INDICATOR_FIELD_NAME);
                if (keyFieldSourceIndicatorIndex >= 0) {
                    cursor = ((AOrderedList) datasetDetailsRecord.getValueByPos(keyFieldSourceIndicatorIndex)).getCursor();
                    while (cursor.next()) {
                        keyFieldSourceIndicator.add((int) ((AInt8) cursor.get()).getByteValue());
                    }
                } else {
                    for (int index = 0; index < partitioningKey.size(); ++index) {
                        keyFieldSourceIndicator.add(0);
                    }
                }
                // Temporary dataset only lives in the compiler therefore the temp field is false.
                //  DatasetTupleTranslator always read from the metadata node, so the temp flag should be always false.
                datasetDetails = new InternalDatasetDetails(fileStructure, partitioningStrategy, partitioningKey, partitioningKey, keyFieldSourceIndicator, partitioningKeyType, autogenerated, filterField, false);
                break;
            }
        case EXTERNAL:
            ARecord datasetDetailsRecord = (ARecord) datasetRecord.getValueByPos(MetadataRecordTypes.DATASET_ARECORD_EXTERNALDETAILS_FIELD_INDEX);
            String adapter = ((AString) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX)).getStringValue();
            cursor = ((AOrderedList) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX)).getCursor();
            Map<String, String> properties = new HashMap<>();
            while (cursor.next()) {
                ARecord field = (ARecord) cursor.get();
                key = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_NAME_FIELD_INDEX)).getStringValue();
                value = ((AString) field.getValueByPos(MetadataRecordTypes.PROPERTIES_VALUE_FIELD_INDEX)).getStringValue();
                properties.put(key, value);
            }
            // Timestamp
            Date timestamp = new Date((((ADateTime) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_LAST_REFRESH_TIME_FIELD_INDEX))).getChrononTime());
            // State
            TransactionState state = TransactionState.values()[((AInt32) datasetDetailsRecord.getValueByPos(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_TRANSACTION_STATE_FIELD_INDEX)).getIntegerValue()];
            datasetDetails = new ExternalDatasetDetails(adapter, properties, timestamp, state);
    }
    Map<String, String> hints = getDatasetHints(datasetRecord);
    String metaTypeDataverseName = null;
    String metaTypeName = null;
    int metaTypeDataverseNameIndex = datasetRecord.getType().getFieldIndex(MetadataRecordTypes.FIELD_NAME_METADATA_DATAVERSE);
    if (metaTypeDataverseNameIndex >= 0) {
        metaTypeDataverseName = ((AString) datasetRecord.getValueByPos(metaTypeDataverseNameIndex)).getStringValue();
        int metaTypeNameIndex = datasetRecord.getType().getFieldIndex(MetadataRecordTypes.FIELD_NAME_METATYPE_NAME);
        metaTypeName = ((AString) datasetRecord.getValueByPos(metaTypeNameIndex)).getStringValue();
    }
    // Read the rebalance count if there is one.
    int rebalanceCountIndex = datasetRecord.getType().getFieldIndex(REBALANCE_ID_FIELD_NAME);
    long rebalanceCount = rebalanceCountIndex >= 0 ? ((AInt64) datasetRecord.getValueByPos(rebalanceCountIndex)).getLongValue() : 0;
    return new Dataset(dataverseName, datasetName, typeDataverseName, typeName, metaTypeDataverseName, metaTypeName, nodeGroupName, compactionPolicy, compactionPolicyProperties, datasetDetails, hints, datasetType, datasetId, pendingOp, rebalanceCount);
}