Examples with ZeroStreamEventConverter io.siddhi.core.event.stream.converter.ZeroStreamEventConverter used on opensource projects

Example 1 with ZeroStreamEventConverter

use of io.siddhi.core.event.stream.converter.ZeroStreamEventConverter in project siddhi by wso2.

the class ComplexEventChunkTestCase method init.

@BeforeMethod
public void init() {
    count = 0;
    streamEventConverter = new ZeroStreamEventConverter();
}

Example 2 with ZeroStreamEventConverter

use of io.siddhi.core.event.stream.converter.ZeroStreamEventConverter in project siddhi by wso2.

the class OutputParser method constructOutputCallback.

public static OutputCallback constructOutputCallback(final OutputStream outStream, StreamDefinition outputStreamDefinition, Map<String, Table> tableMap, Map<String, Window> eventWindowMap, boolean convertToStreamEvent, SiddhiQueryContext siddhiQueryContext) {
    String id = outStream.getId();
    Table table = null;
    Window window = null;
    if (id != null) {
        table = tableMap.get(id);
        window = eventWindowMap.get(id);
    }
    StreamEventFactory streamEventFactory = null;
    StreamEventConverter streamEventConverter = null;
    MetaStreamEvent tableMetaStreamEvent = null;
    if (table != null) {
        tableMetaStreamEvent = new MetaStreamEvent();
        tableMetaStreamEvent.setEventType(MetaStreamEvent.EventType.TABLE);
        TableDefinition matchingTableDefinition = TableDefinition.id("");
        for (Attribute attribute : outputStreamDefinition.getAttributeList()) {
            tableMetaStreamEvent.addOutputData(attribute);
            matchingTableDefinition.attribute(attribute.getName(), attribute.getType());
        }
        matchingTableDefinition.setQueryContextStartIndex(outStream.getQueryContextStartIndex());
        matchingTableDefinition.setQueryContextEndIndex(outStream.getQueryContextEndIndex());
        tableMetaStreamEvent.addInputDefinition(matchingTableDefinition);
        streamEventFactory = new StreamEventFactory(tableMetaStreamEvent);
        streamEventConverter = new ZeroStreamEventConverter();
    }
    // Construct CallBack
    if (outStream instanceof InsertIntoStream || outStream instanceof ReturnStream) {
        if (window != null) {
            if (!siddhiQueryContext.isPartitioned()) {
                return new InsertIntoWindowCallback(window, outputStreamDefinition, siddhiQueryContext.getName());
            } else {
                return new InsertIntoWindowEndPartitionCallback(window, outputStreamDefinition, siddhiQueryContext.getName());
            }
        } else if (table != null) {
            DefinitionParserHelper.validateOutputStream(outputStreamDefinition, table.getTableDefinition());
            return new InsertIntoTableCallback(table, outputStreamDefinition, convertToStreamEvent, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
        } else {
            if (!siddhiQueryContext.isPartitioned() || outputStreamDefinition.getId().startsWith("#")) {
                return new InsertIntoStreamCallback(outputStreamDefinition, siddhiQueryContext.getName());
            } else {
                return new InsertIntoStreamEndPartitionCallback(outputStreamDefinition, siddhiQueryContext.getName());
            }
        }
    } else if (outStream instanceof DeleteStream || outStream instanceof UpdateStream || outStream instanceof UpdateOrInsertStream) {
        if (table != null) {
            if (outStream instanceof UpdateStream) {
                if (((UpdateStream) outStream).getUpdateSet() == null) {
                    TableDefinition tableDefinition = table.getTableDefinition();
                    for (Attribute attribute : outputStreamDefinition.getAttributeList()) {
                        if (!tableDefinition.getAttributeList().contains(attribute)) {
                            throw new SiddhiAppCreationException("Attribute " + attribute + " does not exist on " + "Event Table " + tableDefinition, outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
                        }
                    }
                }
            }
            if (outStream instanceof UpdateOrInsertStream) {
                TableDefinition tableDefinition = table.getTableDefinition();
                for (Attribute attribute : outputStreamDefinition.getAttributeList()) {
                    if (!tableDefinition.getAttributeList().contains(attribute)) {
                        throw new SiddhiAppCreationException("Attribute " + attribute + " does not exist on " + "Event Table " + tableDefinition, outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
                    }
                }
            }
            if (outStream instanceof DeleteStream) {
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((DeleteStream) outStream).getOnDeleteExpression()), matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    StateEventFactory stateEventFactory = new StateEventFactory(matchingMetaInfoHolder.getMetaStateEvent());
                    return new DeleteTableCallback(table, compiledCondition, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventFactory, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create delete for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiQueryContext.getName(), siddhiQueryContext.getSiddhiAppContext().getSiddhiAppString());
                }
            } else if (outStream instanceof UpdateStream) {
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((UpdateStream) outStream).getOnUpdateExpression()), matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    UpdateSet updateSet = ((UpdateStream) outStream).getUpdateSet();
                    if (updateSet == null) {
                        updateSet = new UpdateSet();
                        for (Attribute attribute : matchingMetaInfoHolder.getMatchingStreamDefinition().getAttributeList()) {
                            updateSet.set(new Variable(attribute.getName()), new Variable(attribute.getName()));
                        }
                    }
                    CompiledUpdateSet compiledUpdateSet = table.compileUpdateSet(updateSet, matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    StateEventFactory stateEventFactory = new StateEventFactory(matchingMetaInfoHolder.getMetaStateEvent());
                    return new UpdateTableCallback(table, compiledCondition, compiledUpdateSet, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventFactory, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create update for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiQueryContext.getSiddhiAppContext());
                }
            } else {
                DefinitionParserHelper.validateOutputStream(outputStreamDefinition, table.getTableDefinition());
                try {
                    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(tableMetaStreamEvent, 0, table.getTableDefinition(), 0);
                    CompiledCondition compiledCondition = table.compileCondition((((UpdateOrInsertStream) outStream).getOnUpdateExpression()), matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    UpdateSet updateSet = ((UpdateOrInsertStream) outStream).getUpdateSet();
                    if (updateSet == null) {
                        updateSet = new UpdateSet();
                        for (Attribute attribute : matchingMetaInfoHolder.getMatchingStreamDefinition().getAttributeList()) {
                            updateSet.set(new Variable(attribute.getName()), new Variable(attribute.getName()));
                        }
                    }
                    CompiledUpdateSet compiledUpdateSet = table.compileUpdateSet(updateSet, matchingMetaInfoHolder, null, tableMap, siddhiQueryContext);
                    StateEventFactory stateEventFactory = new StateEventFactory(matchingMetaInfoHolder.getMetaStateEvent());
                    return new UpdateOrInsertTableCallback(table, compiledCondition, compiledUpdateSet, matchingMetaInfoHolder.getMatchingStreamEventIndex(), convertToStreamEvent, stateEventFactory, streamEventFactory, streamEventConverter, siddhiQueryContext.getName());
                } catch (SiddhiAppValidationException e) {
                    throw new SiddhiAppCreationException("Cannot create update or insert into for table '" + outStream.getId() + "', " + e.getMessageWithOutContext(), e, e.getQueryContextStartIndex(), e.getQueryContextEndIndex(), siddhiQueryContext.getSiddhiAppContext());
                }
            }
        } else {
            throw new SiddhiAppCreationException("Event table with id :" + id + " does not exist", outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
        }
    } else {
        throw new SiddhiAppCreationException(outStream.getClass().getName() + " not supported", outStream.getQueryContextStartIndex(), outStream.getQueryContextEndIndex());
    }
}

Example 3 with ZeroStreamEventConverter

use of io.siddhi.core.event.stream.converter.ZeroStreamEventConverter in project siddhi by wso2.

the class EventTestCase method testPassThroughStreamEventConverter.

@Test
public void testPassThroughStreamEventConverter() {
    Attribute symbol = new Attribute("symbol", Attribute.Type.STRING);
    Attribute price = new Attribute("price", Attribute.Type.DOUBLE);
    Attribute volume = new Attribute("volume", Attribute.Type.INT);
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addOutputDataAllowingDuplicate(symbol);
    metaStreamEvent.addOutputDataAllowingDuplicate(price);
    metaStreamEvent.addOutputDataAllowingDuplicate(volume);
    StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute.Type.STRING).attribute("price", Attribute.Type.DOUBLE).attribute("volume", Attribute.Type.INT);
    Event event = new Event(System.currentTimeMillis(), new Object[] { "WSO2", 200.0, 50 });
    metaStreamEvent.addInputDefinition(streamDefinition);
    StreamEventConverter converter = StreamEventConverterFactory.constructEventConverter(metaStreamEvent);
    StreamEventFactory eventPool = new StreamEventFactory(metaStreamEvent);
    StreamEvent newEvent = eventPool.newInstance();
    converter.convertEvent(event, newEvent);
    AssertJUnit.assertTrue(converter instanceof ZeroStreamEventConverter);
    AssertJUnit.assertEquals(3, newEvent.getOutputData().length);
    AssertJUnit.assertEquals("WSO2", newEvent.getOutputData()[0]);
    AssertJUnit.assertEquals(200.0, newEvent.getOutputData()[1]);
    AssertJUnit.assertEquals(50, newEvent.getOutputData()[2]);
}

Example 4 with ZeroStreamEventConverter

use of io.siddhi.core.event.stream.converter.ZeroStreamEventConverter in project siddhi by wso2.

the class EventHolderPasser method parse.

public static EventHolder parse(AbstractDefinition tableDefinition, StreamEventFactory tableStreamEventFactory, SiddhiAppContext siddhiAppContext, boolean isCacheTable) {
    ZeroStreamEventConverter eventConverter = new ZeroStreamEventConverter();
    PrimaryKeyReferenceHolder[] primaryKeyReferenceHolders = null;
    Map<String, Integer> indexMetaData = new HashMap<String, Integer>();
    // primaryKey.
    Annotation primaryKeyAnnotation = AnnotationHelper.getAnnotation(SiddhiConstants.ANNOTATION_PRIMARY_KEY, tableDefinition.getAnnotations());
    if (primaryKeyAnnotation != null) {
        if (primaryKeyAnnotation.getElements().size() == 0) {
            throw new SiddhiAppValidationException(SiddhiConstants.ANNOTATION_PRIMARY_KEY + " annotation " + "contains " + primaryKeyAnnotation.getElements().size() + " element, at '" + tableDefinition.getId() + "'");
        }
        primaryKeyReferenceHolders = primaryKeyAnnotation.getElements().stream().map(element -> element.getValue().trim()).map(key -> new PrimaryKeyReferenceHolder(key, tableDefinition.getAttributePosition(key))).toArray(PrimaryKeyReferenceHolder[]::new);
    }
    for (Annotation indexAnnotation : AnnotationHelper.getAnnotations(SiddhiConstants.ANNOTATION_INDEX, tableDefinition.getAnnotations())) {
        if (indexAnnotation.getElements().size() == 0) {
            throw new SiddhiAppValidationException(SiddhiConstants.ANNOTATION_INDEX + " annotation of " + "in-memory table should contain only one index element, but found " + indexAnnotation.getElements().size() + " element", indexAnnotation.getQueryContextStartIndex(), indexAnnotation.getQueryContextEndIndex());
        } else if (indexAnnotation.getElements().size() > 1) {
            throw new SiddhiAppValidationException(SiddhiConstants.ANNOTATION_INDEX + " annotation of the " + "in-memory table should only contain one index element but found " + indexAnnotation.getElements().size() + " elements. To use multiple indexes, " + "define multiple '@index(<index key>)' annotations with one index element " + "per each index key", indexAnnotation.getQueryContextStartIndex(), indexAnnotation.getQueryContextEndIndex());
        }
        for (Element element : indexAnnotation.getElements()) {
            Integer previousValue = indexMetaData.put(element.getValue().trim(), tableDefinition.getAttributePosition(element.getValue().trim()));
            if (previousValue != null) {
                throw new SiddhiAppValidationException("Multiple " + SiddhiConstants.ANNOTATION_INDEX + " " + "annotations defined with same attribute '" + element.getValue().trim() + "', at '" + tableDefinition.getId() + "'", indexAnnotation.getQueryContextStartIndex(), indexAnnotation.getQueryContextEndIndex());
            }
        }
    }
    // not support indexBy.
    Annotation indexByAnnotation = AnnotationHelper.getAnnotation(SiddhiConstants.ANNOTATION_INDEX_BY, tableDefinition.getAnnotations());
    if (indexByAnnotation != null) {
        throw new OperationNotSupportedException(SiddhiConstants.ANNOTATION_INDEX_BY + " annotation is not " + "supported anymore, please use @PrimaryKey or @Index annotations instead," + " at '" + tableDefinition.getId() + "'");
    }
    if (primaryKeyReferenceHolders != null || indexMetaData.size() > 0) {
        boolean isNumeric = false;
        if (primaryKeyReferenceHolders != null) {
            if (primaryKeyReferenceHolders.length == 1) {
                Attribute.Type type = tableDefinition.getAttributeType(primaryKeyReferenceHolders[0].getPrimaryKeyAttribute());
                if (type == Attribute.Type.DOUBLE || type == Attribute.Type.FLOAT || type == Attribute.Type.INT || type == Attribute.Type.LONG) {
                    isNumeric = true;
                }
            }
        }
        if (isCacheTable) {
            return new IndexEventHolderForCache(tableStreamEventFactory, eventConverter, primaryKeyReferenceHolders, isNumeric, indexMetaData, tableDefinition, siddhiAppContext);
        } else {
            return new IndexEventHolder(tableStreamEventFactory, eventConverter, primaryKeyReferenceHolders, isNumeric, indexMetaData, tableDefinition, siddhiAppContext);
        }
    } else {
        MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
        for (Attribute attribute : tableDefinition.getAttributeList()) {
            metaStreamEvent.addOutputData(attribute);
        }
        StreamEventCloner streamEventCloner = new StreamEventCloner(metaStreamEvent, tableStreamEventFactory);
        return new ListEventHolder(tableStreamEventFactory, eventConverter, new StreamEventClonerHolder(streamEventCloner));
    }
}