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

Example 1 with IACursor

use of org.apache.asterix.om.base.IACursor 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);
}

Example 2 with IACursor

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

the class LangRecordParseUtil method aOrderedListToString.

private static String aOrderedListToString(AOrderedList ol) throws AlgebricksException {
    StringBuilder delimitedList = new StringBuilder();
    IACursor cursor = ol.getCursor();
    if (cursor.next()) {
        IAObject next = cursor.get();
        delimitedList.append(aObjToString(next));
    }
    while (cursor.next()) {
        IAObject next = cursor.get();
        delimitedList.append(",");
        delimitedList.append(aObjToString(next));
    }
    return delimitedList.toString();
}

Example 3 with IACursor

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

the class IndexTupleTranslator method getMetadataEntityFromTuple.

@Override
public Index getMetadataEntityFromTuple(ITupleReference frameTuple) throws MetadataException, HyracksDataException {
    byte[] serRecord = frameTuple.getFieldData(INDEX_PAYLOAD_TUPLE_FIELD_INDEX);
    int recordStartOffset = frameTuple.getFieldStart(INDEX_PAYLOAD_TUPLE_FIELD_INDEX);
    int recordLength = frameTuple.getFieldLength(INDEX_PAYLOAD_TUPLE_FIELD_INDEX);
    ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
    DataInput in = new DataInputStream(stream);
    ARecord rec = recordSerde.deserialize(in);
    String dvName = ((AString) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_DATAVERSENAME_FIELD_INDEX)).getStringValue();
    String dsName = ((AString) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_DATASETNAME_FIELD_INDEX)).getStringValue();
    String indexName = ((AString) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_INDEXNAME_FIELD_INDEX)).getStringValue();
    IndexType indexStructure = IndexType.valueOf(((AString) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_INDEXSTRUCTURE_FIELD_INDEX)).getStringValue());
    IACursor fieldNameCursor = ((AOrderedList) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_SEARCHKEY_FIELD_INDEX)).getCursor();
    List<List<String>> searchKey = new ArrayList<>();
    AOrderedList fieldNameList;
    while (fieldNameCursor.next()) {
        fieldNameList = (AOrderedList) fieldNameCursor.get();
        IACursor nestedFieldNameCursor = (fieldNameList.getCursor());
        List<String> nestedFieldName = new ArrayList<>();
        while (nestedFieldNameCursor.next()) {
            nestedFieldName.add(((AString) nestedFieldNameCursor.get()).getStringValue());
        }
        searchKey.add(nestedFieldName);
    }
    int indexKeyTypeFieldPos = rec.getType().getFieldIndex(INDEX_SEARCHKEY_TYPE_FIELD_NAME);
    IACursor fieldTypeCursor = new ACollectionCursor();
    if (indexKeyTypeFieldPos > 0) {
        fieldTypeCursor = ((AOrderedList) rec.getValueByPos(indexKeyTypeFieldPos)).getCursor();
    }
    List<IAType> searchKeyType = new ArrayList<>(searchKey.size());
    while (fieldTypeCursor.next()) {
        String typeName = ((AString) fieldTypeCursor.get()).getStringValue();
        IAType fieldType = BuiltinTypeMap.getTypeFromTypeName(metadataNode, jobId, dvName, typeName, false);
        searchKeyType.add(fieldType);
    }
    int isEnforcedFieldPos = rec.getType().getFieldIndex(INDEX_ISENFORCED_FIELD_NAME);
    Boolean isEnforcingKeys = false;
    if (isEnforcedFieldPos > 0) {
        isEnforcingKeys = ((ABoolean) rec.getValueByPos(isEnforcedFieldPos)).getBoolean();
    }
    Boolean isPrimaryIndex = ((ABoolean) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_ISPRIMARY_FIELD_INDEX)).getBoolean();
    int pendingOp = ((AInt32) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_PENDINGOP_FIELD_INDEX)).getIntegerValue();
    // Check if there is a gram length as well.
    int gramLength = -1;
    int gramLenPos = rec.getType().getFieldIndex(GRAM_LENGTH_FIELD_NAME);
    if (gramLenPos >= 0) {
        gramLength = ((AInt32) rec.getValueByPos(gramLenPos)).getIntegerValue();
    }
    // Read a field-source-indicator field.
    List<Integer> keyFieldSourceIndicator = new ArrayList<>();
    int keyFieldSourceIndicatorIndex = rec.getType().getFieldIndex(INDEX_SEARCHKEY_SOURCE_INDICATOR_FIELD_NAME);
    if (keyFieldSourceIndicatorIndex >= 0) {
        IACursor cursor = ((AOrderedList) rec.getValueByPos(keyFieldSourceIndicatorIndex)).getCursor();
        while (cursor.next()) {
            keyFieldSourceIndicator.add((int) ((AInt8) cursor.get()).getByteValue());
        }
    } else {
        for (int index = 0; index < searchKey.size(); ++index) {
            keyFieldSourceIndicator.add(0);
        }
    }
    // index key type information is not persisted, thus we extract type information from the record metadata
    if (searchKeyType.isEmpty()) {
        try {
            Dataset dSet = metadataNode.getDataset(jobId, dvName, dsName);
            String datatypeName = dSet.getItemTypeName();
            String datatypeDataverseName = dSet.getItemTypeDataverseName();
            ARecordType recordDt = (ARecordType) metadataNode.getDatatype(jobId, datatypeDataverseName, datatypeName).getDatatype();
            String metatypeName = dSet.getMetaItemTypeName();
            String metatypeDataverseName = dSet.getMetaItemTypeDataverseName();
            ARecordType metaDt = null;
            if (metatypeName != null && metatypeDataverseName != null) {
                metaDt = (ARecordType) metadataNode.getDatatype(jobId, metatypeDataverseName, metatypeName).getDatatype();
            }
            try {
                searchKeyType = KeyFieldTypeUtil.getKeyTypes(recordDt, metaDt, searchKey, keyFieldSourceIndicator);
            } catch (AlgebricksException e) {
                throw new MetadataException(e);
            }
        } catch (RemoteException re) {
            throw HyracksDataException.create(re);
        }
    }
    return new Index(dvName, dsName, indexName, indexStructure, searchKey, keyFieldSourceIndicator, searchKeyType, gramLength, isEnforcingKeys, isPrimaryIndex, pendingOp);
}

Example 4 with IACursor

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

the class DatatypeTupleTranslator method createDataTypeFromARecord.

private Datatype createDataTypeFromARecord(ARecord datatypeRecord) throws MetadataException {
    String dataverseName = ((AString) datatypeRecord.getValueByPos(MetadataRecordTypes.DATATYPE_ARECORD_DATAVERSENAME_FIELD_INDEX)).getStringValue();
    String datatypeName = ((AString) datatypeRecord.getValueByPos(MetadataRecordTypes.DATATYPE_ARECORD_DATATYPENAME_FIELD_INDEX)).getStringValue();
    IAType type = BuiltinTypeMap.getBuiltinType(datatypeName);
    if (type == null) {
        // Derived Type
        ARecord derivedTypeRecord = (ARecord) datatypeRecord.getValueByPos(MetadataRecordTypes.DATATYPE_ARECORD_DERIVED_FIELD_INDEX);
        DerivedTypeTag tag = DerivedTypeTag.valueOf(((AString) derivedTypeRecord.getValueByPos(MetadataRecordTypes.DERIVEDTYPE_ARECORD_TAG_FIELD_INDEX)).getStringValue());
        boolean isAnonymous = ((ABoolean) derivedTypeRecord.getValueByPos(MetadataRecordTypes.DERIVEDTYPE_ARECORD_ISANONYMOUS_FIELD_INDEX)).getBoolean();
        switch(tag) {
            case RECORD:
                {
                    ARecord recordType = (ARecord) derivedTypeRecord.getValueByPos(MetadataRecordTypes.DERIVEDTYPE_ARECORD_RECORD_FIELD_INDEX);
                    boolean isOpen = ((ABoolean) recordType.getValueByPos(MetadataRecordTypes.RECORDTYPE_ARECORD_ISOPEN_FIELD_INDEX)).getBoolean().booleanValue();
                    int numberOfFields = ((AOrderedList) recordType.getValueByPos(MetadataRecordTypes.RECORDTYPE_ARECORD_FIELDS_FIELD_INDEX)).size();
                    IACursor cursor = ((AOrderedList) recordType.getValueByPos(MetadataRecordTypes.RECORDTYPE_ARECORD_FIELDS_FIELD_INDEX)).getCursor();
                    String[] fieldNames = new String[numberOfFields];
                    IAType[] fieldTypes = new IAType[numberOfFields];
                    int fieldId = 0;
                    String fieldTypeName;
                    while (cursor.next()) {
                        ARecord field = (ARecord) cursor.get();
                        fieldNames[fieldId] = ((AString) field.getValueByPos(MetadataRecordTypes.FIELD_ARECORD_FIELDNAME_FIELD_INDEX)).getStringValue();
                        fieldTypeName = ((AString) field.getValueByPos(MetadataRecordTypes.FIELD_ARECORD_FIELDTYPE_FIELD_INDEX)).getStringValue();
                        boolean isNullable = ((ABoolean) field.getValueByPos(MetadataRecordTypes.FIELD_ARECORD_ISNULLABLE_FIELD_INDEX)).getBoolean().booleanValue();
                        fieldTypes[fieldId] = BuiltinTypeMap.getTypeFromTypeName(metadataNode, jobId, dataverseName, fieldTypeName, isNullable);
                        fieldId++;
                    }
                    return new Datatype(dataverseName, datatypeName, new ARecordType(datatypeName, fieldNames, fieldTypes, isOpen), isAnonymous);
                }
            case UNORDEREDLIST:
                {
                    String unorderedlistTypeName = ((AString) derivedTypeRecord.getValueByPos(MetadataRecordTypes.DERIVEDTYPE_ARECORD_UNORDEREDLIST_FIELD_INDEX)).getStringValue();
                    return new Datatype(dataverseName, datatypeName, new AUnorderedListType(BuiltinTypeMap.getTypeFromTypeName(metadataNode, jobId, dataverseName, unorderedlistTypeName, false), datatypeName), isAnonymous);
                }
            case ORDEREDLIST:
                {
                    String orderedlistTypeName = ((AString) derivedTypeRecord.getValueByPos(MetadataRecordTypes.DERIVEDTYPE_ARECORD_ORDEREDLIST_FIELD_INDEX)).getStringValue();
                    return new Datatype(dataverseName, datatypeName, new AOrderedListType(BuiltinTypeMap.getTypeFromTypeName(metadataNode, jobId, dataverseName, orderedlistTypeName, false), datatypeName), isAnonymous);
                }
            default:
                throw new UnsupportedOperationException("Unsupported derived type: " + tag);
        }
    }
    return new Datatype(dataverseName, datatypeName, type, false);
}

Example 5 with IACursor

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

the class FeedTupleTranslator method createFeedFromARecord.

private Feed createFeedFromARecord(ARecord feedRecord) {
    Feed feed;
    String dataverseName = ((AString) feedRecord.getValueByPos(MetadataRecordTypes.FEED_ARECORD_DATAVERSE_NAME_FIELD_INDEX)).getStringValue();
    String feedName = ((AString) feedRecord.getValueByPos(MetadataRecordTypes.FEED_ARECORD_FEED_NAME_FIELD_INDEX)).getStringValue();
    AUnorderedList feedConfig = (AUnorderedList) feedRecord.getValueByPos(MetadataRecordTypes.FEED_ARECORD_ADAPTOR_CONFIG_INDEX);
    String adapterName = ((AString) feedRecord.getValueByPos(MetadataRecordTypes.FEED_ARECORD_ADAPTOR_NAME_INDEX)).getStringValue();
    IACursor cursor = feedConfig.getCursor();
    // restore configurations
    String key;
    String value;
    Map<String, String> adaptorConfiguration = 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();
        adaptorConfiguration.put(key, value);
    }
    feed = new Feed(dataverseName, feedName, adapterName, adaptorConfiguration);
    return feed;
}