/*
* Reset the underlying JDBC database tables
*/
private Pair<Long, URI> resetDatabaseTables(
NodeCentricOperationContext connectionContext, boolean hardReset) throws AnzoException {
try {
dropTables(connectionContext, hardReset);
datasource.begin(connectionContext.getConnection(), true, true);
Long ts = Long.valueOf(0);
LastTransactionTime.insertFirstTransactionTime(
connectionContext.getStatementProvider(), connectionContext.getConnection(), ts);
URI serverUri = UriGenerator.generateServerIdURI();
Long serverId =
connectionContext.getNodeLayout().store(serverUri, connectionContext.getConnection(), 1);
ServerRdbWrapper.setServerId(
connectionContext.getStatementProvider(), connectionContext.getConnection(), serverId);
connectionContext
.getNodeLayout()
.store(Constants.EVERYONE_ROLE, connectionContext.getConnection(), 1);
datasource.commit(connectionContext.getConnection(), true, true);
connectionContext.getNodeLayout().commitReferencedIds(connectionContext.getConnection(), 1);
return new Pair<Long, URI>(serverId, serverUri);
} catch (Exception e) {
log.error(LogUtils.RDB_MARKER, "SQL Error resetting database tables", e);
datasource.abort(connectionContext.getConnection(), true, true);
throw new AnzoException(ExceptionConstants.RDB.OPERATION_ERROR, e, e.getMessage());
}
}
void handleStatement(boolean addition, Long graphId, Long subj, Long prop, Long obj)
throws AnzoException {
URI graphNode = getValue(graphId);
Resource subjNode = getValue(subj);
URI propNode = getValue(prop);
Value objNode = getValue(obj);
URI ngURI = graphNode;
boolean meta = false;
if (UriGenerator.isMetadataGraphUri(ngURI)) {
ngURI = UriGenerator.stripEncapsulatedURI(NAMESPACES.METADATAGRAPH_PREFIX, ngURI);
meta = true;
}
NamedGraphRevision ngr = ngs.get(ngURI);
if (ngr == null) {
throw new AnzoException(
ExceptionConstants.DATASOURCE.NAMEDGRAPH.REVISION_NOT_FOUND, "?", ngURI.toString());
}
if (meta
&& (!ngr.readMeta
&& !(ngr.readGraph && subjNode.equals(ngURI) && isSpecialMeta(propNode)))) {
return;
} else if (!meta && !ngr.readGraph) {
return;
}
if (lastNGRevision == null || !lastNGRevision.namedGraphUri.equals(ngURI)) {
handler.handleNamedGraph(ngr.namedGraphUri, ngr.uuid, ngr.revision);
lastNGRevision = ngr;
if (newGraph.get(ngURI) && lastNGRevision.cache == null) {
lastNGRevision.cache = new ArrayList<Statement>();
}
}
handler.handleStatement(meta, addition, subjNode, propNode, objNode, graphNode);
if (addition && lastNGRevision.cache != null) {
lastNGRevision.cache.add(
Constants.valueFactory.createStatement(subjNode, propNode, objNode, graphNode));
}
}