Examples with KernelException org.neo4j.kernel.api.exceptions.KernelException used on opensource projects

Example 11 with KernelException

use of org.neo4j.kernel.api.exceptions.KernelException in project neo4j by neo4j.

the class ReflectiveProcedureCompiler method compileProcedure.

List<CallableProcedure> compileProcedure(Class<?> procDefinition, Optional<String> warning, boolean fullAccess) throws KernelException {
    try {
        List<Method> procedureMethods = Arrays.stream(procDefinition.getDeclaredMethods()).filter(m -> m.isAnnotationPresent(Procedure.class)).collect(Collectors.toList());
        if (procedureMethods.isEmpty()) {
            return emptyList();
        }
        MethodHandle constructor = constructor(procDefinition);
        ArrayList<CallableProcedure> out = new ArrayList<>(procedureMethods.size());
        for (Method method : procedureMethods) {
            String valueName = method.getAnnotation(Procedure.class).value();
            String definedName = method.getAnnotation(Procedure.class).name();
            QualifiedName procName = extractName(procDefinition, method, valueName, definedName);
            if (fullAccess || config.isWhitelisted(procName.toString())) {
                out.add(compileProcedure(procDefinition, constructor, method, warning, fullAccess, procName));
            } else {
                log.warn(String.format("The procedure '%s' is not on the whitelist and won't be loaded.", procName.toString()));
            }
        }
        out.sort(Comparator.comparing(a -> a.signature().name().toString()));
        return out;
    } catch (KernelException e) {
        throw e;
    } catch (Exception e) {
        throw new ProcedureException(Status.Procedure.ProcedureRegistrationFailed, e, "Failed to compile procedure defined in `%s`: %s", procDefinition.getSimpleName(), e.getMessage());
    }
}

Example 12 with KernelException

use of org.neo4j.kernel.api.exceptions.KernelException in project neo4j by neo4j.

the class ReflectiveProcedureCompiler method compileFunction.

List<CallableUserFunction> compileFunction(Class<?> fcnDefinition) throws KernelException {
    try {
        List<Method> procedureMethods = Arrays.stream(fcnDefinition.getDeclaredMethods()).filter(m -> m.isAnnotationPresent(UserFunction.class)).collect(Collectors.toList());
        if (procedureMethods.isEmpty()) {
            return emptyList();
        }
        MethodHandle constructor = constructor(fcnDefinition);
        ArrayList<CallableUserFunction> out = new ArrayList<>(procedureMethods.size());
        for (Method method : procedureMethods) {
            String valueName = method.getAnnotation(UserFunction.class).value();
            String definedName = method.getAnnotation(UserFunction.class).name();
            QualifiedName procName = extractName(fcnDefinition, method, valueName, definedName);
            if (config.isWhitelisted(procName.toString())) {
                out.add(compileFunction(fcnDefinition, constructor, method, procName));
            } else {
                log.warn(String.format("The function '%s' is not on the whitelist and won't be loaded.", procName.toString()));
            }
        }
        out.sort(Comparator.comparing(a -> a.signature().name().toString()));
        return out;
    } catch (KernelException e) {
        throw e;
    } catch (Exception e) {
        throw new ProcedureException(Status.Procedure.ProcedureRegistrationFailed, e, "Failed to compile function defined in `%s`: %s", fcnDefinition.getSimpleName(), e.getMessage());
    }
}

Example 13 with KernelException

use of org.neo4j.kernel.api.exceptions.KernelException in project neo4j by neo4j.

the class TransactionStateMachineSPI method executeQuery.

@Override
public BoltResultHandle executeQuery(BoltQuerySource querySource, SecurityContext securityContext, String statement, Map<String, Object> params, ThrowingAction<KernelException> onFail) throws QueryExecutionKernelException {
    InternalTransaction internalTransaction = queryService.beginTransaction(implicit, securityContext);
    ClientConnectionInfo sourceDetails = new BoltConnectionInfo(querySource.principalName, querySource.clientName, querySource.connectionDescriptor.clientAddress, querySource.connectionDescriptor.serverAddress);
    TransactionalContext transactionalContext = contextFactory.newContext(sourceDetails, internalTransaction, statement, params);
    return new BoltResultHandle() {

        @Override
        public BoltResult start() throws KernelException {
            try {
                Result run = queryExecutionEngine.executeQuery(statement, params, transactionalContext);
                return new CypherAdapterStream(run, clock);
            } catch (KernelException e) {
                onFail.apply();
                throw new QueryExecutionKernelException(e);
            } catch (Throwable e) {
                onFail.apply();
                throw e;
            }
        }

        @Override
        public void terminate() {
            transactionalContext.terminate();
        }
    };
}