private CypherResult doExecuteQuery(String query, boolean canProfile) {
long time = System.currentTimeMillis();
Transaction tx = gdb.beginTx();
javax.transaction.Transaction resumeTx;
try {
resumeTx = suspendTx(query);
ExecutionResult result =
canProfile ? executionEngine.profile(query) : executionEngine.execute(query);
final Collection<Map<String, Object>> data = IteratorUtil.asCollection(result);
time = System.currentTimeMillis() - time;
resumeTransaction(resumeTx);
CypherResult cypherResult =
new CypherResult(
result.columns(),
data,
result.getQueryStatistics(),
time,
canProfile ? result.executionPlanDescription() : null,
prettify(query));
tx.success();
return cypherResult;
} finally {
tx.close();
}
}
private javax.transaction.Transaction suspendTx(String query) {
if (!executionEngine.isPeriodicCommitQuery(query)) return null;
try {
return transactionManager.suspend();
} catch (SystemException e) {
throw new RuntimeException("Error suspending Transaction", e);
}
}
@Override
protected ExecutionResult getResult(String query, Map<String, Object> parameters)
throws ShellException, RemoteException, SystemException {
GraphDatabaseAPI graphDatabaseAPI = getServer().getDb();
ServerExecutionEngine engine = getEngine();
if (engine.isPeriodicCommitQuery(query)) {
TransactionManager manager =
graphDatabaseAPI.getDependencyResolver().resolveDependency(TransactionManager.class);
Transaction tx = manager.suspend();
try {
return super.getResult(query, parameters);
} finally {
manager.resume(tx);
}
} else {
return super.getResult(query, parameters);
}
}
@Override
protected ExtendedExecutionResult getResult(String query, Map<String, Object> parameters)
throws ShellException, RemoteException {
GraphDatabaseAPI graphDatabaseAPI = getServer().getDb();
ServerExecutionEngine engine = getEngine();
if (engine.isPeriodicCommit(query)) {
ThreadToStatementContextBridge manager =
graphDatabaseAPI
.getDependencyResolver()
.resolveDependency(ThreadToStatementContextBridge.class);
TopLevelTransaction tx = manager.getTopLevelTransactionBoundToThisThread(true);
manager.unbindTransactionFromCurrentThread();
try {
return super.getResult(query, parameters);
} finally {
manager.bindTransactionToCurrentThread(tx);
}
} else {
return super.getResult(query, parameters);
}
}
public String prettify(String query) {
return executionEngine.prettify(query).replaceAll("\n", "\n ");
}
