| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #include "api/nanofi.h" |
| |
| /** |
| * This is an example of the C API that registers terminate handler and generates an exception. |
| */ |
| |
| void example_terminate_handler() { |
| fprintf(stderr, "Unhandled exception! Let's pretend that this is normal!"); |
| exit(0); |
| } |
| |
| int main(int argc, char **argv) { |
| |
| nifi_port port; |
| |
| port.port_id = "12345"; |
| |
| set_terminate_callback(example_terminate_handler); |
| |
| nifi_instance *instance = create_instance("random instance", &port); |
| |
| flow *new_flow = create_new_flow(instance); |
| |
| processor *generate_proc = add_processor(new_flow, "GenerateFlowFile"); |
| |
| processor *put_proc = add_processor(new_flow, "PutFile"); |
| |
| // Target directory for PutFile is missing, it's not allowed to create, so tries to transmit to failure relationship |
| // As it doesn't exist, an exception is thrown |
| set_property(put_proc, "Directory", "/tmp/never_existed"); |
| set_property(put_proc, "Create Missing Directories", "false"); |
| |
| flow_file_record *record = get_next_flow_file(instance, new_flow ); |
| |
| // Here be dragons - nothing below this line gets executed |
| fprintf(stderr, "Dragons!!!"); |
| free_flowfile(record); |
| free_flow(new_flow); |
| free_instance(instance); |
| } |