Examples with TransactionStateChecker org.neo4j.server.http.cypher.TransactionStateChecker used on opensource projects

Example 1 with TransactionStateChecker

use of org.neo4j.server.http.cypher.TransactionStateChecker in project neo4j by neo4j.

the class ExecutionResultSerializer method writeRecord.

void writeRecord(RecordEvent recordEvent) {
    try {
        TransactionStateChecker txStateChecker = TransactionStateChecker.create(transactionHandle.getContext());
        jsonGenerator.writeStartObject();
        try {
            writer.write(jsonGenerator, recordEvent, txStateChecker);
        } finally {
            jsonGenerator.writeEndObject();
        }
        flush();
    } catch (JsonGenerationException e) {
        throw new IllegalStateException(e);
    } catch (IOException e) {
        throw new ConnectionException("Failed to write to the connection", e);
    }
}

Example 2 with TransactionStateChecker

use of org.neo4j.server.http.cypher.TransactionStateChecker in project neo4j by neo4j.

the class Neo4jJsonCodec method writeMeta.

public void writeMeta(JsonGenerator out, Object value) throws IOException {
    if (value instanceof Node) {
        Node node = (Node) value;
        TransactionStateChecker stateChecker = TransactionStateChecker.create(transactionHandle.getContext());
        writeNodeOrRelationshipMeta(out, node.getId(), Neo4jJsonMetaType.NODE, stateChecker.isNodeDeletedInCurrentTx(node.getId()));
    } else if (value instanceof Relationship) {
        Relationship relationship = (Relationship) value;
        TransactionStateChecker transactionStateChecker = TransactionStateChecker.create(transactionHandle.getContext());
        writeNodeOrRelationshipMeta(out, relationship.getId(), Neo4jJsonMetaType.RELATIONSHIP, transactionStateChecker.isRelationshipDeletedInCurrentTx(relationship.getId()));
    } else if (value instanceof Path) {
        writeMetaPath(out, (Path) value);
    } else if (value instanceof Iterable) {
        for (Object v : (Iterable) value) {
            writeMeta(out, v);
        }
    } else if (value instanceof Map) {
        Map map = (Map) value;
        for (var mapValue : map.values()) {
            writeMeta(out, mapValue);
        }
    } else if (value instanceof Geometry) {
        writeObjectMeta(out, parseGeometryType((Geometry) value));
    } else if (value instanceof Temporal) {
        writeObjectMeta(out, parseTemporalType((Temporal) value));
    } else if (value instanceof TemporalAmount) {
        writeObjectMeta(out, Neo4jJsonMetaType.DURATION);
    } else {
        out.writeNull();
    }
}

Example 3 with TransactionStateChecker

use of org.neo4j.server.http.cypher.TransactionStateChecker in project neo4j by neo4j.

the class LineDelimitedEventSourceJoltSerializer method writeRecord.

protected void writeRecord(RecordEvent recordEvent) {
    try {
        TransactionStateChecker txStateChecker = TransactionStateChecker.create(transactionHandle.getContext());
        jsonGenerator.writeStartObject();
        jsonGenerator.writeFieldName("data");
        try {
            writer.write(jsonGenerator, recordEvent, txStateChecker);
        } finally {
            jsonGenerator.writeEndObject();
            flush();
        }
    } catch (JsonGenerationException e) {
        throw new IllegalStateException(e);
    } catch (IOException e) {
        throw new ConnectionException("Failed to write to the connection", e);
    }
}

Example 4 with TransactionStateChecker

use of org.neo4j.server.http.cypher.TransactionStateChecker in project neo4j by neo4j.

the class Neo4jJsonCodec method writeValue.

@Override
public void writeValue(JsonGenerator out, Object value) throws IOException {
    if (value instanceof Entity) {
        var context = transactionHandle.getContext();
        TransactionStateChecker txStateChecker = TransactionStateChecker.create(context);
        writeEntity(out, (Entity) value, txStateChecker, context);
    } else if (value instanceof Path) {
        var context = transactionHandle.getContext();
        TransactionStateChecker txStateChecker = TransactionStateChecker.create(context);
        writePath(out, ((Path) value).iterator(), txStateChecker, context);
    } else if (value instanceof Iterable) {
        writeIterator(out, ((Iterable) value).iterator());
    } else if (value instanceof byte[]) {
        writeByteArray(out, (byte[]) value);
    } else if (value instanceof Map) {
        writeMap(out, (Map) value);
    } else if (value instanceof Geometry) {
        Geometry geom = (Geometry) value;
        Object coordinates = (geom instanceof Point) ? ((Point) geom).getCoordinate() : geom.getCoordinates();
        writeMap(out, genericMap(new LinkedHashMap<>(), "type", geom.getGeometryType(), "coordinates", coordinates, "crs", geom.getCRS()));
    } else if (value instanceof Coordinate) {
        Coordinate coordinate = (Coordinate) value;
        writeIterator(out, coordinate.getCoordinate().iterator());
    } else if (value instanceof CRS) {
        CRS crs = (CRS) value;
        writeMap(out, genericMap(new LinkedHashMap<>(), "srid", crs.getCode(), "name", crs.getType(), "type", "link", "properties", genericMap(new LinkedHashMap<>(), "href", crs.getHref() + "ogcwkt/", "type", "ogcwkt")));
    } else if (value instanceof Temporal || value instanceof TemporalAmount) {
        super.writeValue(out, value.toString());
    } else if (value != null && value.getClass().isArray() && supportedArrayType(value.getClass().getComponentType())) {
        writeReflectiveArray(out, value);
    } else {
        super.writeValue(out, value);
    }
}