| /** |
| * |
| * 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 <unistd.h> |
| #include <dirent.h> |
| |
| #include "api/nanofi.h" |
| |
| int is_dir(const char *path) { |
| struct stat stat_struct; |
| if (stat(path, &stat_struct) != 0) |
| return 0; |
| return S_ISDIR(stat_struct.st_mode); |
| } |
| |
| void transfer_file_or_directory(nifi_instance *instance, char *file_or_dir) { |
| int size = 1; |
| |
| if (is_dir(file_or_dir)) { |
| DIR *d; |
| |
| struct dirent *dir; |
| d = opendir(file_or_dir); |
| if (d) { |
| while ((dir = readdir(d)) != NULL) { |
| if (!memcmp(dir->d_name,".",1) ) |
| continue; |
| char *file_path = malloc(strlen(file_or_dir) + strlen(dir->d_name) + 2); |
| sprintf(file_path,"%s/%s",file_or_dir,dir->d_name); |
| transfer_file_or_directory(instance,file_path); |
| free(file_path); |
| } |
| closedir(d); |
| } |
| printf("%s is a directory", file_or_dir); |
| } else { |
| printf("Transferring %s\n",file_or_dir); |
| |
| flow_file_record *record = create_flowfile(file_or_dir, strlen(file_or_dir)); |
| |
| add_attribute(record, "addedattribute", "1", 2); |
| |
| transmit_flowfile(record, instance); |
| |
| free_flowfile(record); |
| } |
| } |
| |
| /** |
| * This is an example of the C API that transmits a flow file to a remote instance. |
| */ |
| int main(int argc, char **argv) { |
| |
| if (argc < 4) { |
| printf("Error: must run ./transmit_flow <instance> <remote port> <file or directory>\n"); |
| exit(1); |
| } |
| |
| char *instance_str = argv[1]; |
| char *portStr = argv[2]; |
| char *file = argv[3]; |
| |
| nifi_port port; |
| |
| port.port_id = portStr; |
| |
| nifi_instance *instance = create_instance(instance_str, &port); |
| |
| // initializing will make the transmission slightly more efficient. |
| // initialize_instance(instance); |
| transfer_file_or_directory(instance,file); |
| |
| // Create flowfile without content (just a set of attributes) |
| flow_file_record * record = create_ff_object_nc(); |
| |
| const char * custom_value = "transmitted value"; |
| |
| add_attribute(record, "transmitted attribute", (void*)custom_value, strlen(custom_value)); |
| |
| transmit_flowfile(record, instance); |
| |
| free_flowfile(record); |
| |
| free_instance(instance); |
| } |
| |
| |