static int
l_schema_new_raw_value(lua_State *L)
{
LuaAvroSchema *l_schema = luaL_checkudata(L, 1, MT_AVRO_SCHEMA);
if (l_schema->iface == NULL) {
l_schema->iface = avro_generic_class_from_schema(l_schema->schema);
if (l_schema->iface == NULL) {
lua_pushstring(L, avro_strerror());
return lua_error(L);
}
}
if (lua_gettop(L) >= 2) {
LuaAvroValue *l_value = luaL_checkudata(L, 2, MT_AVRO_VALUE);
if (l_value->should_decref && l_value->value.self != NULL) {
avro_value_decref(&l_value->value);
}
check(avro_generic_value_new(l_schema->iface, &l_value->value));
l_value->should_decref = true;
lua_pushvalue(L, 2);
} else {
avro_value_t value;
check(avro_generic_value_new(l_schema->iface, &value));
lua_avro_push_value(L, &value, true);
}
return 1;
}
rkv_error_t r_kv_create_avro_value(kv_store_t *kvstore,
const char *space,
const char *schemaName,
avro_value_t **ret_avro_value) {
int ret;
avro_schema_t schema = NULL;
avro_value_iface_t *iface = NULL;
avro_value_t *avro_value = NULL;
if (!kvstore || !schemaName || !ret_avro_value) {
return RKV_INVALID_ARGUEMENTS;
}
if ((schema = r_kv_get_schema(kvstore, space, schemaName)) == NULL) {
return RKV_INVALID_SCHEMA;
}
ret = rkv_malloc(sizeof(avro_value_t), (void**)&avro_value);
RETURN_IF_ERR(ret);
iface = avro_generic_class_from_schema(schema);
if (avro_generic_value_new(iface, avro_value) != 0) {
return RKV_ERROR;
}
*ret_avro_value = avro_value;
return RKV_SUCCESS;
}
/*
{
"type": "record",
"name": "FinishRequest",
"fields": [
{"name": "succeed", "type": "boolean"},
{"name": "diagnostics", "type": "string"}
]
}
*/
static void parse_finish_request(avro_slice_t *slice, bool *succeed, char **diag)
{
char filename[FILE_NAME_LEN];
avro_schema_t schema;
avro_value_iface_t *iface;
avro_value_t record, succeed_value, diag_value;
size_t index;
avro_reader_t reader;
size_t size;
sprintf(filename, "%s/%s", SCHEMA_PATH, "FinishRequestRecordAvro.avsc");
init_schema(filename, &schema);
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &record);
reader = avro_reader_memory(slice->buffer, slice->len);
if (avro_value_read(reader, &record)) {
fprintf(stderr, "Unable to read record from memory buffer\n");
fprintf(stderr, "Error: %s\n", avro_strerror());
exit(1);
}
avro_value_get_by_name(&record, "succeed", &succeed_value, &index);
avro_value_get_boolean(&succeed_value, succeed);
avro_value_get_by_name(&record, "diagnostics", &diag_value, &index);
avro_value_get_string(&diag_value, diag, &size);
//avro_generic_value_free(&record);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
}
int main(void)
{
int pass;
for (pass = 0 ; json_schemas[pass] ; pass++) {
int rval = 0;
size_t len;
static char buf[4096];
avro_writer_t writer;
avro_file_writer_t file_writer;
avro_file_reader_t file_reader;
avro_schema_t schema = NULL;
avro_schema_error_t error = NULL;
char outpath[64];
const char *json_schema = json_schemas[pass];
printf("pass %d with schema %s\n", pass, json_schema);
check(rval, avro_schema_from_json(json_schema, strlen(json_schema),
&schema, &error));
avro_value_iface_t *iface = avro_generic_class_from_schema(schema);
avro_value_t val;
avro_generic_value_new(iface, &val);
avro_value_t out;
avro_generic_value_new(iface, &out);
/* create the val */
avro_value_reset(&val);
avro_value_set_string(&val, "test-1691");
/* Write value to file */
snprintf(outpath, sizeof(outpath), "test-1691-%d.avro", pass);
/* create the writers */
writer = avro_writer_memory(buf, sizeof(buf));
check(rval, avro_file_writer_create(outpath, schema, &file_writer));
check(rval, avro_value_write(writer, &val));
len = avro_writer_tell(writer);
check(rval, avro_file_writer_append_encoded(file_writer, buf, len));
check(rval, avro_file_writer_close(file_writer));
/* Read the value back */
check(rval, avro_file_reader(outpath, &file_reader));
check(rval, avro_file_reader_read_value(file_reader, &out));
if (!avro_value_equal(&val, &out)) {
fprintf(stderr, "fail!\n");
exit(EXIT_FAILURE);
}
fprintf(stderr, "pass %d: ok: schema %s\n", pass, json_schema);
check(rval, avro_file_reader_close(file_reader));
remove(outpath);
}
exit(EXIT_SUCCESS);
}
int process_frame_table_schema(avro_value_t *record_val, frame_reader_t reader, uint64_t wal_pos) {
int err = 0, key_schema_present;
avro_value_t relid_val, hash_val, key_schema_val, row_schema_val, branch_val;
int64_t relid;
const void *hash;
const char *key_schema_json = NULL, *row_schema_json;
size_t hash_len, key_schema_len = 1, row_schema_len;
avro_schema_t key_schema = NULL, row_schema;
check(err, avro_value_get_by_index(record_val, 0, &relid_val, NULL));
check(err, avro_value_get_by_index(record_val, 1, &hash_val, NULL));
check(err, avro_value_get_by_index(record_val, 2, &key_schema_val, NULL));
check(err, avro_value_get_by_index(record_val, 3, &row_schema_val, NULL));
check(err, avro_value_get_long(&relid_val, &relid));
check(err, avro_value_get_fixed(&hash_val, &hash, &hash_len));
check(err, avro_value_get_discriminant(&key_schema_val, &key_schema_present));
check(err, avro_value_get_string(&row_schema_val, &row_schema_json, &row_schema_len));
check(err, avro_schema_from_json_length(row_schema_json, row_schema_len - 1, &row_schema));
schema_list_entry *entry = schema_list_replace(reader, relid);
entry->relid = relid;
entry->hash = *((uint64_t *) hash);
entry->row_schema = row_schema;
entry->row_iface = avro_generic_class_from_schema(row_schema);
avro_generic_value_new(entry->row_iface, &entry->row_value);
avro_generic_value_new(entry->row_iface, &entry->old_value);
entry->avro_reader = avro_reader_memory(NULL, 0);
if (key_schema_present) {
check(err, avro_value_get_current_branch(&key_schema_val, &branch_val));
check(err, avro_value_get_string(&branch_val, &key_schema_json, &key_schema_len));
check(err, avro_schema_from_json_length(key_schema_json, key_schema_len - 1, &key_schema));
entry->key_schema = key_schema;
entry->key_iface = avro_generic_class_from_schema(key_schema);
avro_generic_value_new(entry->key_iface, &entry->key_value);
} else {
entry->key_schema = NULL;
}
if (reader->on_table_schema) {
check(err, reader->on_table_schema(reader->cb_context, wal_pos, relid,
key_schema_json, key_schema_len - 1, key_schema,
row_schema_json, row_schema_len - 1, row_schema));
}
return err;
}
/*
typedef struct {
int jobid;
int vpid;
} process_name_t;
typedef struct {
char *en_vars;
char *args;
char *host_name;
process_name_t proc_name;
} launch_context_t;
typedef struct {
bool is_successful;
process_name_t proc_name;
} launch_response_t;
*/
static void build_launch_response(launch_response_t *launch_response_array, int array_size, avro_slice_t **slice)
{
char filename[FILE_NAME_LEN];
char buf[BUFFER_SIZE];
long len = 0;
avro_schema_t schema;
avro_value_iface_t *iface;
avro_value_t record;
avro_value_t results_value, LaunchResult_value, is_successful_value, name_value, jobid_value, vpid_value;
size_t index;
int i;
avro_writer_t writer;
sprintf(filename, "%s/%s", SCHEMA_PATH, "LaunchResponseRecordAvro.avsc");
init_schema(filename, &schema);
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &record);
avro_value_get_by_name(&record, "results", &results_value, &index);
for (i = 0; i < array_size; i++) {
avro_value_append(&results_value, &LaunchResult_value, &index);
avro_value_get_by_name(&LaunchResult_value, "is_successful", &is_successful_value, &index);
avro_value_set_boolean(&is_successful_value, launch_response_array[i].is_successful);
avro_value_get_by_name(&LaunchResult_value, "name", &name_value, &index);
avro_value_get_by_name(&name_value, "jobid", &jobid_value, &index);
avro_value_set_int(&jobid_value, launch_response_array[i].proc_name.jobid);
avro_value_get_by_name(&name_value, "vpid", &vpid_value, &index);
avro_value_set_int(&vpid_value, launch_response_array[i].proc_name.vpid);
}
/* create a writer with memory buffer */
writer = avro_writer_memory(buf, sizeof(buf));
/* write record to writer (buffer) */
if (avro_value_write(writer, &record)) {
fprintf(stderr, "Unable to write record to memory buffer\n");
fprintf(stderr, "Error: %s\n", avro_strerror());
exit(1);
}
avro_writer_flush(writer);
len = avro_writer_tell(writer);
//avro_generic_value_free(&record);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
*slice = xmalloc(sizeof(avro_slice_t));
(*slice)->buffer = xmalloc(len);
(*slice)->len = len;
memcpy((*slice)->buffer, buf, len);
}
int avro_bin_to_json(avro_schema_t schema,
const void *val_bin, size_t val_len,
char **val_out, size_t *val_len_out) {
if (!val_bin) {
*val_out = NULL;
return 0;
} else if (!schema) {
log_error("json: got a value where we didn't expect one, and no schema to decode it");
*val_out = NULL;
return EINVAL;
}
avro_reader_t reader = avro_reader_memory(val_bin, val_len);
avro_value_iface_t *iface = avro_generic_class_from_schema(schema);
if (!iface) {
log_error("json: error in avro_generic_class_from_schema: %s", avro_strerror());
avro_reader_free(reader);
return EINVAL;
}
int err;
avro_value_t value;
err = avro_generic_value_new(iface, &value);
if (err) {
log_error("json: error in avro_generic_value_new: %s", avro_strerror());
avro_value_iface_decref(iface);
avro_reader_free(reader);
return err;
}
err = avro_value_read(reader, &value);
if (err) {
log_error("json: error decoding Avro value: %s", avro_strerror());
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_reader_free(reader);
return err;
}
err = avro_value_to_json(&value, 1, val_out);
if (err) {
log_error("json: error converting Avro value to JSON: %s", avro_strerror());
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_reader_free(reader);
return err;
}
*val_len_out = strlen(*val_out); // not including null terminator - to librdkafka it's just bytes
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_reader_free(reader);
return 0;
}
static int
AvroDeserializer_init(AvroDeserializer *self, PyObject *args, PyObject *kwds)
{
int rval;
PyObject *types = NULL;
const char *schema_json;
static char *kwlist[] = {"schema", "types", NULL};
self->flags = 0;
self->iface = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s|O", kwlist,
&schema_json, &types)) {
return -1;
}
rval = avro_schema_from_json(schema_json, 0, &self->schema, NULL);
if (rval != 0 || self->schema == NULL) {
PyErr_Format(PyExc_IOError, "Error reading schema: %s",
avro_strerror());
return -1;
}
self->flags |= DESERIALIZER_SCHEMA_OK;
self->iface = avro_generic_class_from_schema(self->schema);
if (self->iface == NULL) {
PyErr_SetString(PyExc_IOError,
"Error creating generic class interface");
return -1;
}
self->datum_reader = avro_reader_memory(0, 0);
if (!self->datum_reader) {
PyErr_NoMemory();
return -1;
}
self->flags |= DESERIALIZER_READER_OK;
/* copied verbatim from filereader */
if (types != NULL && PyObject_IsTrue(types)) {
/* we still haven't incref'ed types here */
if (Py_TYPE(types) == get_avro_types_type()) {
Py_INCREF(types);
self->info.types = types;
} else {
self->info.types = PyObject_CallFunctionObjArgs(
(PyObject *) get_avro_types_type(), NULL);
if (self->info.types == NULL) {
return -1;
}
declare_types(&self->info, self->schema);
}
} else {
self->info.types = NULL;
}
return 0;
}
void process_file(FILE *input, avro_file_writer_t out, avro_schema_t schema,
int verbose, int memstat, int errabort, int strjson, size_t max_str_sz) {
json_error_t err;
json_t *json;
int n = 0;
json = json_loadf(input, JSON_DISABLE_EOF_CHECK, &err);
while (!feof(input)) {
n++;
if (verbose && !(n % 1000))
printf("Processing record %d\n", n);
if (!json) {
if (errabort) {
fprintf(stderr, "JSON error on line %d, column %d, pos %d: %s, aborting.\n", n, err.column, err.position, err.text);
return;
}
fprintf(stderr, "JSON error on line %d, column %d, pos %d: %s, skipping to EOL\n", n, err.column, err.position, err.text);
while (getc(input) != '\n' && !feof(input)) {};
json = json_loadf(input, JSON_DISABLE_EOF_CHECK, &err);
continue;
}
avro_value_t record;
avro_value_iface_t *iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &record);
if (!schema_traverse(schema, json, NULL, &record, 0, strjson, max_str_sz)) {
if (avro_file_writer_append_value(out, &record)) {
fprintf(stderr, "ERROR: avro_file_writer_append_value() FAILED: %s\n", avro_strerror());
exit(EXIT_FAILURE);
}
} else
fprintf(stderr, "Error processing record %d, skipping...\n", n);
avro_value_iface_decref(iface);
avro_value_decref(&record);
json_decref(json);
if (memstat && !(n % 1000))
memory_status();
json = json_loadf(input, JSON_DISABLE_EOF_CHECK, &err);
}
if (memstat) memory_status();
avro_schema_decref(schema);
}
static void output_avro_startup(LogicalDecodingContext *ctx, OutputPluginOptions *opt,
bool is_init) {
plugin_state *state = palloc(sizeof(plugin_state));
ctx->output_plugin_private = state;
opt->output_type = OUTPUT_PLUGIN_BINARY_OUTPUT;
state->memctx = AllocSetContextCreate(ctx->context, "Avro decoder context",
ALLOCSET_DEFAULT_MINSIZE, ALLOCSET_DEFAULT_INITSIZE, ALLOCSET_DEFAULT_MAXSIZE);
state->frame_schema = schema_for_frame();
state->frame_iface = avro_generic_class_from_schema(state->frame_schema);
avro_generic_value_new(state->frame_iface, &state->frame_value);
state->schema_cache = schema_cache_new(ctx->context);
}
static void
process_file(const char *in_filename, const char *out_filename)
{
avro_file_reader_t reader;
avro_file_writer_t writer;
if (in_filename == NULL) {
if (avro_file_reader_fp(stdin, "<stdin>", 0, &reader)) {
fprintf(stderr, "Error opening <stdin>:\n %s\n",
avro_strerror());
exit(1);
}
} else {
if (avro_file_reader(in_filename, &reader)) {
fprintf(stderr, "Error opening %s:\n %s\n",
in_filename, avro_strerror());
exit(1);
}
}
avro_schema_t wschema;
avro_value_iface_t *iface;
avro_value_t value;
wschema = avro_file_reader_get_writer_schema(reader);
iface = avro_generic_class_from_schema(wschema);
avro_generic_value_new(iface, &value);
if (avro_file_writer_create_with_codec
(out_filename, wschema, &writer, codec, block_size)) {
fprintf(stderr, "Error creating %s:\n %s\n",
out_filename, avro_strerror());
exit(1);
}
while (avro_file_reader_read_value(reader, &value) == 0) {
if (avro_file_writer_append_value(writer, &value)) {
fprintf(stderr, "Error writing to %s:\n %s\n",
out_filename, avro_strerror());
exit(1);
}
avro_value_reset(&value);
}
avro_file_reader_close(reader);
avro_file_writer_close(writer);
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(wschema);
}
frame_reader_t frame_reader_new() {
frame_reader_t reader = malloc(sizeof(frame_reader));
check_alloc(reader);
memset(reader, 0, sizeof(frame_reader));
reader->num_schemas = 0;
reader->capacity = 16;
reader->schemas = malloc(reader->capacity * sizeof(void*));
check_alloc(reader->schemas);
reader->frame_schema = schema_for_frame();
reader->frame_iface = avro_generic_class_from_schema(reader->frame_schema);
avro_generic_value_new(reader->frame_iface, &reader->frame_value);
reader->avro_reader = avro_reader_memory(NULL, 0);
return reader;
}
static int write_data(int n_records) {
int i;
avro_schema_t schema;
avro_schema_error_t error;
avro_file_writer_t writer;
avro_value_iface_t *iface;
avro_value_t value;
fprintf(stderr, "\nWriting...\n");
if (avro_schema_from_json(PERSON_SCHEMA, 0, &schema, &error)) {
fprintf(stderr, "Unable to parse schema\n");
return -1;
}
if (avro_file_writer_create(filename, schema, &writer)) {
fprintf(stderr, "There was an error creating file: %s\n", avro_strerror());
return -1;
}
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &value);
avro_value_t field;
avro_value_get_by_index(&value, 0, &field, NULL);
avro_value_set_int(&field, 123);
for (i = 0; i < n_records; i++) {
if (avro_file_writer_append_value(writer, &value)) {
fprintf(stderr, "There was an error writing file: %s\n", avro_strerror());
return -1;
}
}
if (avro_file_writer_close(writer)) {
fprintf(stderr, "There was an error creating file: %s\n", avro_strerror());
return -1;
}
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
return n_records;
}
static int read_data() {
int rval;
int records_read = 0;
avro_file_reader_t reader;
avro_value_iface_t *iface;
avro_value_t value;
fprintf(stderr, "\nReading...\n");
rval = avro_file_reader(filename, &reader);
if (rval) {
fprintf(stderr, "Error: %s\n", avro_strerror());
return -1;
}
avro_schema_t schema = avro_file_reader_get_writer_schema(reader);
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &value);
while ((rval = avro_file_reader_read_value(reader, &value)) == 0) {
avro_value_t field;
int32_t val;
avro_value_get_by_index(&value, 0, &field, NULL);
avro_value_get_int(&field, &val);
fprintf(stderr, "value = %d\n", val);
records_read++;
avro_value_reset(&value);
}
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
avro_file_reader_close(reader);
fprintf(stderr, "read %d records.\n", records_read);
if (rval != EOF) {
fprintf(stderr, "Error: %s\n", avro_strerror());
return -1;
}
return records_read;
}
static void
process_file(const char *filename)
{
avro_file_reader_t reader;
if (filename == NULL) {
if (avro_file_reader_fp(stdin, "<stdin>", 0, &reader)) {
fprintf(stderr, "Error opening <stdin>:\n %s\n",
avro_strerror());
exit(1);
}
} else {
if (avro_file_reader(filename, &reader)) {
fprintf(stderr, "Error opening %s:\n %s\n",
filename, avro_strerror());
exit(1);
}
}
avro_schema_t wschema;
avro_value_iface_t *iface;
avro_value_t value;
wschema = avro_file_reader_get_writer_schema(reader);
iface = avro_generic_class_from_schema(wschema);
avro_generic_value_new(iface, &value);
while (avro_file_reader_read_value(reader, &value) == 0) {
char *json;
if (avro_value_to_json(&value, 1, &json)) {
fprintf(stderr, "Error converting value to JSON: %s\n",
avro_strerror());
} else {
printf("%s\n", json);
free(json);
}
avro_value_reset(&value);
}
avro_file_reader_close(reader);
avro_value_decref(&value);
avro_value_iface_decref(iface);
}
extern int parse_heartbeat_request(avro_slice_t *slice)
{
char filename[FILE_NAME_LEN];
avro_schema_t schema;
avro_value_iface_t *iface;
avro_value_t record;
size_t index;
avro_reader_t reader;
size_t size = 0;
sprintf(filename, "%s/%s", SCHEMA_PATH, "HeartBeatRequestRecordAvro.avsc");
init_schema(filename, &schema);
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &record);
reader = avro_reader_memory(slice->buffer, slice->len);
if (avro_value_read(reader, &record)) {
fprintf(stderr, "Unable to read record from memory buffer\n");
fprintf(stderr, "Error: %s\n", avro_strerror());
exit(1);
}
avro_value_get_size(&record, &size);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
// printf("slice->len = %d\n", slice->len);
// printf("size = %ld\n", size);
//
// if (size > 0) {
// return 0;
// } else {
// return -1;
// }
if (size == 0) {
return 0;
} else {
return -1;
}
}
static void
read_using_writer_schema(const char *filename)
{
avro_file_reader_t file;
avro_schema_t writer_schema;
avro_value_iface_t *writer_iface;
avro_value_t writer_value;
// Open an Avro file and grab the writer schema that was used to create the
// file.
check_i(avro_file_reader(filename, &file));
writer_schema = avro_file_reader_get_writer_schema(file);
// Then create a value that is an instance of the writer schema. As above,
// we use the built-in "generic" value implementation for the value instance
// that will actually store the data.
check_p(writer_iface = avro_generic_class_from_schema(writer_schema));
check_i(avro_generic_value_new(writer_iface, &writer_value));
// Read values from the file until we run out, printing the contents of each
// one. Here, we can read directly into `writer_value` since we know that
// it's an instance of the schema that was used to create the file.
while (avro_file_reader_read_value(file, &writer_value) == 0) {
avro_value_t field;
int32_t a;
int32_t b;
check_i(avro_value_get_by_name(&writer_value, "a", &field, NULL));
check_i(avro_value_get_int(&field, &a));
check_i(avro_value_get_by_name(&writer_value, "b", &field, NULL));
check_i(avro_value_get_int(&field, &b));
printf(" a: %" PRId32 ", b: %" PRId32 "\n", a, b);
}
// Close the file and clean up after ourselves.
avro_file_reader_close(file);
avro_value_decref(&writer_value);
avro_value_iface_decref(writer_iface);
avro_schema_decref(writer_schema);
}
int main(void)
{
avro_schema_t schema = NULL;
avro_schema_error_t error;
avro_value_iface_t *simple_array_class;
avro_value_t simple;
/* Initialize the schema structure from JSON */
if (avro_schema_from_json(SIMPLE_ARRAY, sizeof(SIMPLE_ARRAY),
&schema, &error)) {
fprintf(stdout, "Unable to parse schema\n");
exit(EXIT_FAILURE);
}
// Create avro class and value
simple_array_class = avro_generic_class_from_schema( schema );
if ( simple_array_class == NULL )
{
fprintf(stdout, "Unable to create simple array class\n");
exit(EXIT_FAILURE);
}
if ( avro_generic_value_new( simple_array_class, &simple ) )
{
fprintf(stdout, "Error creating instance of record\n" );
exit(EXIT_FAILURE);
}
// Release the avro class and value
avro_value_decref( &simple );
avro_value_iface_decref( simple_array_class );
avro_schema_decref(schema);
return 0;
}
int process_file(const char *in_filename, const char *out_filename)
{
avro_file_reader_t reader;
avro_file_writer_t writer;
if (in_filename == NULL) {
if (avro_file_reader_fp(stdin, "<stdin>", 0, &reader)) {
fprintf(stderr, "Error opening <stdin>:\n %s\n",
avro_strerror());
return 1;
}
} else {
if (avro_file_reader(in_filename, &reader)) {
fprintf(stderr, "Error opening %s:\n %s\n",
in_filename, avro_strerror());
return 1;
}
}
avro_schema_t wschema;
wschema = avro_file_reader_get_writer_schema(reader);
/* Check that the reader schema is the same as the writer schema */
{
avro_schema_t oschema;
avro_file_reader_t oreader;
if (avro_file_reader(out_filename, &oreader)) {
fprintf(stderr, "Error opening %s:\n %s\n",
out_filename, avro_strerror());
avro_file_reader_close(reader);
return 1;
}
oschema = avro_file_reader_get_writer_schema(oreader);
if (avro_schema_equal(oschema, wschema) == 0) {
fprintf(stderr, "Error: reader and writer schema are not equal.\n");
avro_file_reader_close(oreader);
avro_file_reader_close(reader);
return 1;
}
avro_file_reader_close(oreader);
avro_schema_decref(oschema);
}
if (avro_file_writer_open(out_filename, &writer)) {
fprintf(stderr, "Error opening %s:\n %s\n",
out_filename, avro_strerror());
avro_file_reader_close(reader);
return 1;
}
avro_value_iface_t *iface;
avro_value_t value;
iface = avro_generic_class_from_schema(wschema);
avro_generic_value_new(iface, &value);
while (avro_file_reader_read_value(reader, &value) == 0) {
if (avro_file_writer_append_value(writer, &value)) {
fprintf(stderr, "Error writing to %s:\n %s\n",
out_filename, avro_strerror());
return 1;
}
avro_value_reset(&value);
}
avro_file_reader_close(reader);
avro_file_writer_close(writer);
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(wschema);
return 0;
}
avro_writer_t prepare_writer_status()
{
avro_writer_t writer;
long lSize = 0;
CcspLMLiteConsoleTrace(("RDK_LOG_DEBUG, LMLite %s : ENTER \n", __FUNCTION__ ));
CcspLMLiteConsoleTrace(("RDK_LOG_DEBUG, Avro prepares to serialize data\n"));
if ( schema_file_parsed == FALSE )
{
FILE *fp;
/* open schema file */
fp = fopen ( NETWORK_DEVICE_STATUS_AVRO_FILENAME , "rb" );
if ( !fp ) perror( NETWORK_DEVICE_STATUS_AVRO_FILENAME " doesn't exist."), exit(1);
/* seek through file and get file size*/
fseek( fp , 0L , SEEK_END);
lSize = ftell( fp );
/*back to the start of the file*/
rewind( fp );
/* allocate memory for entire content */
ndsschemabuffer = calloc( 1, lSize + 1 );
if ( !ndsschemabuffer ) fclose(fp), fputs("memory alloc fails", stderr), exit(1);
/* copy the file into the buffer */
if ( 1 != fread( ndsschemabuffer , lSize, 1 , fp) )
fclose(fp), free(ndsschemabuffer), ndsschemabuffer=NULL, fputs("entire read fails", stderr), exit(1);
fclose(fp);
avro_schema_error_t error = NULL;
//Master report/datum
avro_schema_t network_device_report_schema = NULL;
avro_schema_from_json(ndsschemabuffer, strlen(ndsschemabuffer),
&network_device_report_schema, &error);
//generate an avro class from our schema and get a pointer to the value interface
iface = avro_generic_class_from_schema(network_device_report_schema);
avro_schema_decref(network_device_report_schema);
schema_file_parsed = TRUE; // parse schema file once only
CcspLMLiteConsoleTrace(("RDK_LOG_DEBUG, Read Avro schema file ONCE, lSize = %ld, pbuffer = 0x%lx.\n", lSize + 1, (ulong)ndsschemabuffer ));
}
else
{
CcspLMLiteConsoleTrace(("RDK_LOG_DEBUG, Stored lSize = %ld, pbuffer = 0x%lx.\n", lSize + 1, (ulong)ndsschemabuffer ));
}
memset(&AvroSerializedBuf[0], 0, sizeof(AvroSerializedBuf));
AvroSerializedBuf[0] = MAGIC_NUMBER; /* fill MAGIC number = Empty, i.e. no Schema ID */
memcpy( &AvroSerializedBuf[ MAGIC_NUMBER_SIZE ], UUID, sizeof(UUID));
memcpy( &AvroSerializedBuf[ MAGIC_NUMBER_SIZE + sizeof(UUID) ], HASH, sizeof(HASH));
writer = avro_writer_memory( (char*)&AvroSerializedBuf[MAGIC_NUMBER_SIZE + SCHEMA_ID_LENGTH],
sizeof(AvroSerializedBuf) - MAGIC_NUMBER_SIZE - SCHEMA_ID_LENGTH );
CcspLMLiteConsoleTrace(("RDK_LOG_DEBUG, LMLite %s : EXIT \n", __FUNCTION__ ));
return writer;
}
void kafka_cache_purge(struct chained_cache *queue[], int index, int safe_action)
{
struct pkt_primitives *data = NULL;
struct pkt_bgp_primitives *pbgp = NULL;
struct pkt_nat_primitives *pnat = NULL;
struct pkt_mpls_primitives *pmpls = NULL;
struct pkt_tunnel_primitives *ptun = NULL;
char *pcust = NULL;
struct pkt_vlen_hdr_primitives *pvlen = NULL;
struct pkt_bgp_primitives empty_pbgp;
struct pkt_nat_primitives empty_pnat;
struct pkt_mpls_primitives empty_pmpls;
struct pkt_tunnel_primitives empty_ptun;
char *empty_pcust = NULL;
char src_mac[18], dst_mac[18], src_host[INET6_ADDRSTRLEN], dst_host[INET6_ADDRSTRLEN], ip_address[INET6_ADDRSTRLEN];
char rd_str[SRVBUFLEN], misc_str[SRVBUFLEN], dyn_kafka_topic[SRVBUFLEN], *orig_kafka_topic = NULL;
int i, j, stop, batch_idx, is_topic_dyn = FALSE, qn = 0, ret, saved_index = index;
int mv_num = 0, mv_num_save = 0;
time_t start, duration;
pid_t writer_pid = getpid();
char *json_buf = NULL;
int json_buf_off = 0;
#ifdef WITH_AVRO
avro_writer_t avro_writer;
char *avro_buf = NULL;
int avro_buffer_full = FALSE;
#endif
p_kafka_init_host(&kafkap_kafka_host, config.kafka_config_file);
/* setting some defaults */
if (!config.sql_host) config.sql_host = default_kafka_broker_host;
if (!config.kafka_broker_port) config.kafka_broker_port = default_kafka_broker_port;
if (!config.sql_table) config.sql_table = default_kafka_topic;
else {
if (strchr(config.sql_table, '$')) {
is_topic_dyn = TRUE;
orig_kafka_topic = config.sql_table;
}
}
if (config.amqp_routing_key_rr) orig_kafka_topic = config.sql_table;
p_kafka_init_topic_rr(&kafkap_kafka_host);
p_kafka_set_topic_rr(&kafkap_kafka_host, config.amqp_routing_key_rr);
empty_pcust = malloc(config.cpptrs.len);
if (!empty_pcust) {
Log(LOG_ERR, "ERROR ( %s/%s ): Unable to malloc() empty_pcust. Exiting.\n", config.name, config.type);
exit_plugin(1);
}
memset(&empty_pbgp, 0, sizeof(struct pkt_bgp_primitives));
memset(&empty_pnat, 0, sizeof(struct pkt_nat_primitives));
memset(&empty_pmpls, 0, sizeof(struct pkt_mpls_primitives));
memset(&empty_ptun, 0, sizeof(struct pkt_tunnel_primitives));
memset(empty_pcust, 0, config.cpptrs.len);
p_kafka_connect_to_produce(&kafkap_kafka_host);
p_kafka_set_broker(&kafkap_kafka_host, config.sql_host, config.kafka_broker_port);
if (!is_topic_dyn && !config.amqp_routing_key_rr) p_kafka_set_topic(&kafkap_kafka_host, config.sql_table);
p_kafka_set_partition(&kafkap_kafka_host, config.kafka_partition);
p_kafka_set_key(&kafkap_kafka_host, config.kafka_partition_key, config.kafka_partition_keylen);
if (config.message_broker_output & PRINT_OUTPUT_JSON) p_kafka_set_content_type(&kafkap_kafka_host, PM_KAFKA_CNT_TYPE_STR);
else if (config.message_broker_output & PRINT_OUTPUT_AVRO) p_kafka_set_content_type(&kafkap_kafka_host, PM_KAFKA_CNT_TYPE_BIN);
else {
Log(LOG_ERR, "ERROR ( %s/%s ): Unsupported kafka_output value specified. Exiting.\n", config.name, config.type);
exit_plugin(1);
}
for (j = 0, stop = 0; (!stop) && P_preprocess_funcs[j]; j++)
stop = P_preprocess_funcs[j](queue, &index, j);
Log(LOG_INFO, "INFO ( %s/%s ): *** Purging cache - START (PID: %u) ***\n", config.name, config.type, writer_pid);
start = time(NULL);
if (config.print_markers) {
if (config.message_broker_output & PRINT_OUTPUT_JSON || config.message_broker_output & PRINT_OUTPUT_AVRO) {
void *json_obj;
char *json_str;
json_obj = compose_purge_init_json(config.name, writer_pid);
if (json_obj) json_str = compose_json_str(json_obj);
if (json_str) {
Log(LOG_DEBUG, "DEBUG ( %s/%s ): %s\n\n", config.name, config.type, json_str);
ret = p_kafka_produce_data(&kafkap_kafka_host, json_str, strlen(json_str));
free(json_str);
json_str = NULL;
}
}
}
if (config.message_broker_output & PRINT_OUTPUT_JSON) {
if (config.sql_multi_values) {
json_buf = malloc(config.sql_multi_values);
if (!json_buf) {
Log(LOG_ERR, "ERROR ( %s/%s ): malloc() failed (json_buf). Exiting ..\n", config.name, config.type);
exit_plugin(1);
}
else memset(json_buf, 0, config.sql_multi_values);
}
}
else if (config.message_broker_output & PRINT_OUTPUT_AVRO) {
#ifdef WITH_AVRO
if (!config.avro_buffer_size) config.avro_buffer_size = LARGEBUFLEN;
avro_buf = malloc(config.avro_buffer_size);
if (!avro_buf) {
Log(LOG_ERR, "ERROR ( %s/%s ): malloc() failed (avro_buf). Exiting ..\n", config.name, config.type);
exit_plugin(1);
}
else memset(avro_buf, 0, config.avro_buffer_size);
avro_writer = avro_writer_memory(avro_buf, config.avro_buffer_size);
#endif
}
for (j = 0; j < index; j++) {
void *json_obj;
char *json_str;
if (queue[j]->valid != PRINT_CACHE_COMMITTED) continue;
data = &queue[j]->primitives;
if (queue[j]->pbgp) pbgp = queue[j]->pbgp;
else pbgp = &empty_pbgp;
if (queue[j]->pnat) pnat = queue[j]->pnat;
else pnat = &empty_pnat;
if (queue[j]->pmpls) pmpls = queue[j]->pmpls;
else pmpls = &empty_pmpls;
if (queue[j]->ptun) ptun = queue[j]->ptun;
else ptun = &empty_ptun;
if (queue[j]->pcust) pcust = queue[j]->pcust;
else pcust = empty_pcust;
if (queue[j]->pvlen) pvlen = queue[j]->pvlen;
else pvlen = NULL;
if (queue[j]->valid == PRINT_CACHE_FREE) continue;
if (config.message_broker_output & PRINT_OUTPUT_JSON) {
#ifdef WITH_JANSSON
json_t *json_obj = json_object();
int idx;
for (idx = 0; idx < N_PRIMITIVES && cjhandler[idx]; idx++) cjhandler[idx](json_obj, queue[j]);
add_writer_name_and_pid_json(json_obj, config.name, writer_pid);
json_str = compose_json_str(json_obj);
#endif
}
else if (config.message_broker_output & PRINT_OUTPUT_AVRO) {
#ifdef WITH_AVRO
avro_value_iface_t *avro_iface = avro_generic_class_from_schema(avro_acct_schema);
avro_value_t avro_value = compose_avro(config.what_to_count, config.what_to_count_2, queue[j]->flow_type,
&queue[j]->primitives, pbgp, pnat, pmpls, ptun, pcust, pvlen, queue[j]->bytes_counter,
queue[j]->packet_counter, queue[j]->flow_counter, queue[j]->tcp_flags,
&queue[j]->basetime, queue[j]->stitch, avro_iface);
size_t avro_value_size;
add_writer_name_and_pid_avro(avro_value, config.name, writer_pid);
avro_value_sizeof(&avro_value, &avro_value_size);
if (avro_value_size > config.avro_buffer_size) {
Log(LOG_ERR, "ERROR ( %s/%s ): AVRO: insufficient buffer size (avro_buffer_size=%u)\n",
config.name, config.type, config.avro_buffer_size);
Log(LOG_ERR, "ERROR ( %s/%s ): AVRO: increase value or look for avro_buffer_size in CONFIG-KEYS document.\n\n",
config.name, config.type);
exit_plugin(1);
}
else if (avro_value_size >= (config.avro_buffer_size - avro_writer_tell(avro_writer))) {
avro_buffer_full = TRUE;
j--;
}
else if (avro_value_write(avro_writer, &avro_value)) {
Log(LOG_ERR, "ERROR ( %s/%s ): AVRO: unable to write value: %s\n",
config.name, config.type, avro_strerror());
exit_plugin(1);
}
else {
mv_num++;
}
avro_value_decref(&avro_value);
avro_value_iface_decref(avro_iface);
#else
if (config.debug) Log(LOG_DEBUG, "DEBUG ( %s/%s ): compose_avro(): AVRO object not created due to missing --enable-avro\n", config.name, config.type);
#endif
}
if (config.message_broker_output & PRINT_OUTPUT_JSON) {
char *tmp_str = NULL;
if (json_str && config.sql_multi_values) {
int json_strlen = (strlen(json_str) ? (strlen(json_str) + 1) : 0);
if (json_strlen >= (config.sql_multi_values - json_buf_off)) {
if (json_strlen >= config.sql_multi_values) {
Log(LOG_ERR, "ERROR ( %s/%s ): kafka_multi_values not large enough to store JSON elements. Exiting ..\n", config.name, config.type);
exit(1);
}
tmp_str = json_str;
json_str = json_buf;
}
else {
strcat(json_buf, json_str);
mv_num++;
string_add_newline(json_buf);
json_buf_off = strlen(json_buf);
free(json_str);
json_str = NULL;
}
}
if (json_str) {
if (is_topic_dyn) {
P_handle_table_dyn_strings(dyn_kafka_topic, SRVBUFLEN, orig_kafka_topic, queue[j]);
p_kafka_set_topic(&kafkap_kafka_host, dyn_kafka_topic);
}
if (config.amqp_routing_key_rr) {
P_handle_table_dyn_rr(dyn_kafka_topic, SRVBUFLEN, orig_kafka_topic, &kafkap_kafka_host.topic_rr);
p_kafka_set_topic(&kafkap_kafka_host, dyn_kafka_topic);
}
Log(LOG_DEBUG, "DEBUG ( %s/%s ): %s\n\n", config.name, config.type, json_str);
ret = p_kafka_produce_data(&kafkap_kafka_host, json_str, strlen(json_str));
if (config.sql_multi_values) {
json_str = tmp_str;
strcpy(json_buf, json_str);
mv_num_save = mv_num;
mv_num = 1;
string_add_newline(json_buf);
json_buf_off = strlen(json_buf);
}
free(json_str);
json_str = NULL;
if (!ret) {
if (!config.sql_multi_values) qn++;
else qn += mv_num_save;
}
else break;
}
}
else if (config.message_broker_output & PRINT_OUTPUT_AVRO) {
#ifdef WITH_AVRO
if (!config.sql_multi_values || (mv_num >= config.sql_multi_values) || avro_buffer_full) {
if (is_topic_dyn) {
P_handle_table_dyn_strings(dyn_kafka_topic, SRVBUFLEN, orig_kafka_topic, queue[j]);
p_kafka_set_topic(&kafkap_kafka_host, dyn_kafka_topic);
}
if (config.amqp_routing_key_rr) {
P_handle_table_dyn_rr(dyn_kafka_topic, SRVBUFLEN, orig_kafka_topic, &kafkap_kafka_host.topic_rr);
p_kafka_set_topic(&kafkap_kafka_host, dyn_kafka_topic);
}
ret = p_kafka_produce_data(&kafkap_kafka_host, avro_buf, avro_writer_tell(avro_writer));
avro_writer_reset(avro_writer);
avro_buffer_full = FALSE;
mv_num_save = mv_num;
mv_num = 0;
if (!ret) qn += mv_num_save;
else break;
}
#endif
}
}
if (config.sql_multi_values) {
if (config.message_broker_output & PRINT_OUTPUT_JSON) {
if (json_buf && json_buf_off) {
/* no handling of dyn routing keys here: not compatible */
Log(LOG_DEBUG, "DEBUG ( %s/%s ): %s\n\n", config.name, config.type, json_buf);
ret = p_kafka_produce_data(&kafkap_kafka_host, json_buf, strlen(json_buf));
if (!ret) qn += mv_num;
}
}
else if (config.message_broker_output & PRINT_OUTPUT_AVRO) {
#ifdef WITH_AVRO
if (avro_writer_tell(avro_writer)) {
ret = p_kafka_produce_data(&kafkap_kafka_host, avro_buf, avro_writer_tell(avro_writer));
avro_writer_free(avro_writer);
if (!ret) qn += mv_num;
}
#endif
}
}
duration = time(NULL)-start;
if (config.print_markers) {
if (config.message_broker_output & PRINT_OUTPUT_JSON || config.message_broker_output & PRINT_OUTPUT_AVRO) {
void *json_obj;
char *json_str;
json_obj = compose_purge_close_json(config.name, writer_pid, qn, saved_index, duration);
if (json_obj) json_str = compose_json_str(json_obj);
if (json_str) {
sleep(1); /* Let's give a small delay to facilitate purge_close being
the last message in batch in case of partitioned topics */
Log(LOG_DEBUG, "DEBUG ( %s/%s ): %s\n\n", config.name, config.type, json_str);
ret = p_kafka_produce_data(&kafkap_kafka_host, json_str, strlen(json_str));
free(json_str);
json_str = NULL;
}
}
}
p_kafka_close(&kafkap_kafka_host, FALSE);
Log(LOG_INFO, "INFO ( %s/%s ): *** Purging cache - END (PID: %u, QN: %u/%u, ET: %u) ***\n",
config.name, config.type, writer_pid, qn, saved_index, duration);
if (config.sql_trigger_exec && !safe_action) P_trigger_exec(config.sql_trigger_exec);
if (empty_pcust) free(empty_pcust);
if (json_buf) free(json_buf);
#ifdef WITH_AVRO
if (avro_buf) free(avro_buf);
#endif
}
static void
process_file(const char *filename)
{
avro_file_reader_t reader;
FILE *fp;
int should_close;
if (filename == NULL) {
fp = stdin;
filename = "<stdin>";
should_close = 0;
} else {
fp = fopen(filename, "rb");
should_close = 1;
if (fp == NULL) {
fprintf(stderr, "Error opening %s:\n %s\n",
filename, strerror(errno));
exit(1);
}
}
if (avro_file_reader_fp(fp, filename, 0, &reader)) {
fprintf(stderr, "Error opening %s:\n %s\n",
filename, avro_strerror());
if (should_close) {
fclose(fp);
}
exit(1);
}
avro_schema_t wschema;
avro_value_iface_t *iface;
avro_value_t value;
wschema = avro_file_reader_get_writer_schema(reader);
iface = avro_generic_class_from_schema(wschema);
avro_generic_value_new(iface, &value);
int rval;
while ((rval = avro_file_reader_read_value(reader, &value)) == 0) {
char *json;
if (avro_value_to_json(&value, 1, &json)) {
fprintf(stderr, "Error converting value to JSON: %s\n",
avro_strerror());
} else {
printf("%s\n", json);
free(json);
}
avro_value_reset(&value);
}
// If it was not an EOF that caused it to fail,
// print the error.
if (rval != EOF) {
fprintf(stderr, "Error: %s\n", avro_strerror());
}
avro_file_reader_close(reader);
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(wschema);
if (should_close) {
fclose(fp);
}
}
static int
AvroFileReader_init(AvroFileReader *self, PyObject *args, PyObject *kwds)
{
int rval;
PyObject *pyfile;
PyObject *types = NULL;
FILE *file;
char *schema_json;
avro_writer_t schema_json_writer;
size_t len;
static char *kwlist[] = {"file", "types", NULL};
self->pyfile = NULL;
self->flags = 0;
self->iface = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist,
&pyfile, &types)) {
return -1;
}
file = PyFile_AsFile(pyfile);
if (file == NULL) {
return -1;
}
self->pyfile = pyfile;
Py_INCREF(pyfile);
if (avro_file_reader_fp(file, "pyfile", 0, &self->reader)) {
PyErr_Format(PyExc_IOError, "Error opening file: %s", avro_strerror());
return -1;
}
self->flags |= AVROFILE_READER_OK;
self->schema = avro_file_reader_get_writer_schema(self->reader);
if (self->schema == NULL) {
PyErr_Format(PyExc_IOError, "Error reading schema: %s", avro_strerror());
return -1;
}
len = 256;
do {
/* XXX horrible loop to get a big enough buffer for schema. */
len *= 2;
schema_json = (char *)PyMem_Malloc(len);
schema_json_writer = avro_writer_memory(schema_json, len);
rval = avro_schema_to_json(self->schema, schema_json_writer);
if (!rval) {
rval = avro_write(schema_json_writer, (void *)"", 1); /* zero terminate */
if (!rval) {
self->schema_json = PyString_FromString(schema_json);
}
}
avro_writer_free(schema_json_writer);
PyMem_Free(schema_json);
} while (rval == ENOSPC);
if (rval) {
PyErr_Format(PyExc_IOError, "Error saving schema: %s", avro_strerror());
return -1;
}
self->flags |= AVROFILE_SCHEMA_OK;
self->iface = avro_generic_class_from_schema(self->schema);
if (self->iface == NULL) {
PyErr_SetString(PyExc_IOError, "Error creating generic class interface");
return -1;
}
if (types != NULL && PyObject_IsTrue(types)) {
/* we still haven't incref'ed types here */
if (Py_TYPE(types) == get_avro_types_type()) {
Py_INCREF(types);
self->info.types = types;
} else {
self->info.types = PyObject_CallFunctionObjArgs((PyObject *)get_avro_types_type(), NULL);
if (self->info.types == NULL) {
return -1;
}
declare_types(&self->info, self->schema);
}
} else {
self->info.types = NULL;
}
return 0;
}
static void
read_with_schema_resolution(const char *filename,
const char *reader_schema_json,
const char *field_name)
{
avro_file_reader_t file;
avro_schema_error_t error;
avro_schema_t reader_schema;
avro_schema_t writer_schema;
avro_value_iface_t *writer_iface;
avro_value_iface_t *reader_iface;
avro_value_t writer_value;
avro_value_t reader_value;
// Open an Avro file and grab the writer schema that was used to create the
// file.
check_i(avro_file_reader(filename, &file));
writer_schema = avro_file_reader_get_writer_schema(file);
// Create a value instance that we want to read the data into. Note that
// this is *not* the writer schema!
check_i(avro_schema_from_json
(reader_schema_json, 0, &reader_schema, &error));
check_p(reader_iface = avro_generic_class_from_schema(reader_schema));
check_i(avro_generic_value_new(reader_iface, &reader_value));
// Create a resolved writer that will perform the schema resolution for us.
// If the two schemas aren't compatible, this function will return an error,
// and the error text should describe which parts of the schemas are
// incompatible.
check_p(writer_iface =
avro_resolved_writer_new(writer_schema, reader_schema));
// Create an instance of the resolved writer, and tell it to wrap our reader
// value instance.
check_i(avro_resolved_writer_new_value(writer_iface, &writer_value));
avro_resolved_writer_set_dest(&writer_value, &reader_value);
// Now we've got the same basic loop as above. But we've got two value
// instances floating around! Which do we use? We have the file reader
// fill in `writer_value`, since that's the value that is an instance of the
// file's writer schema. Since it's an instance of a resolved writer,
// though, it doesn't actually store any data itself. Instead, it will
// perform schema resolution on the data read from the file, and fill in its
// wrapped value (which in our case is `reader_value`). That means that
// once the data has been read, we can get its (schema-resolved) contents
// via `reader_value`.
while (avro_file_reader_read_value(file, &writer_value) == 0) {
avro_value_t field;
int32_t value;
check_i(avro_value_get_by_name(&reader_value, field_name, &field, NULL));
check_i(avro_value_get_int(&field, &value));
printf(" %s: %" PRId32 "\n", field_name, value);
}
// Close the file and clean up after ourselves.
avro_file_reader_close(file);
avro_value_decref(&writer_value);
avro_value_iface_decref(writer_iface);
avro_schema_decref(writer_schema);
avro_value_decref(&reader_value);
avro_value_iface_decref(reader_iface);
avro_schema_decref(reader_schema);
}
static void
write_data(const char *filename)
{
avro_file_writer_t file;
avro_schema_t writer_schema;
avro_schema_error_t error;
avro_value_iface_t *writer_iface;
avro_value_t writer_value;
avro_value_t field;
// First parse the JSON schema into the C API's internal schema
// representation.
check_i(avro_schema_from_json(WRITER_SCHEMA, 0, &writer_schema, &error));
// Then create a value that is an instance of that schema. We use the
// built-in "generic" value implementation, which is what you'll usually use
// to create value instances that can actually store data. We only need to
// create one instance, since we can re-use it for all of the values that
// we're going to write into the file.
check_p(writer_iface = avro_generic_class_from_schema(writer_schema));
check_i(avro_generic_value_new(writer_iface, &writer_value));
// Open a new data file for writing, and then write a slew of records into
// it.
check_i(avro_file_writer_create(filename, writer_schema, &file));
/* record 1 */
check_i(avro_value_get_by_name(&writer_value, "a", &field, NULL));
check_i(avro_value_set_int(&field, 10));
check_i(avro_value_get_by_name(&writer_value, "b", &field, NULL));
check_i(avro_value_set_int(&field, 11));
check_i(avro_file_writer_append_value(file, &writer_value));
/* record 2 */
check_i(avro_value_get_by_name(&writer_value, "a", &field, NULL));
check_i(avro_value_set_int(&field, 20));
check_i(avro_value_get_by_name(&writer_value, "b", &field, NULL));
check_i(avro_value_set_int(&field, 21));
check_i(avro_file_writer_append_value(file, &writer_value));
/* record 3 */
check_i(avro_value_get_by_name(&writer_value, "a", &field, NULL));
check_i(avro_value_set_int(&field, 30));
check_i(avro_value_get_by_name(&writer_value, "b", &field, NULL));
check_i(avro_value_set_int(&field, 31));
check_i(avro_file_writer_append_value(file, &writer_value));
/* record 4 */
check_i(avro_value_get_by_name(&writer_value, "a", &field, NULL));
check_i(avro_value_set_int(&field, 40));
check_i(avro_value_get_by_name(&writer_value, "b", &field, NULL));
check_i(avro_value_set_int(&field, 41));
check_i(avro_file_writer_append_value(file, &writer_value));
/* record 5 */
check_i(avro_value_get_by_name(&writer_value, "a", &field, NULL));
check_i(avro_value_set_int(&field, 50));
check_i(avro_value_get_by_name(&writer_value, "b", &field, NULL));
check_i(avro_value_set_int(&field, 51));
check_i(avro_file_writer_append_value(file, &writer_value));
// Close the file and clean up after ourselves.
avro_file_writer_close(file);
avro_value_decref(&writer_value);
avro_value_iface_decref(writer_iface);
avro_schema_decref(writer_schema);
}
static void build_heartbeat_response(completed_proc_t *completed_proc_array, int array_size, avro_slice_t **slice)
{
char filename[FILE_NAME_LEN];
char buf[BUFFER_SIZE];
long len = 0;
avro_schema_t schema;
avro_value_iface_t *iface;
avro_value_t record;
avro_value_t completed_processes_value, ProcessStatus_value;
avro_value_t name_value, ProcessName_value, jobid_value, vpid_value;
avro_value_t state_value;
avro_value_t exit_value_value;
size_t index;
int i;
avro_writer_t writer;
sprintf(filename, "%s/%s", SCHEMA_PATH, "HeartBeatResponseRecordAvro.avsc");
init_schema(filename, &schema);
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &record);
avro_value_get_by_name(&record, "completed_processes", &completed_processes_value, &index);
for (i = 0; i < array_size; i++) {
avro_value_append(&completed_processes_value, &ProcessStatus_value, &index);
avro_value_get_by_name(&ProcessStatus_value, "name", &name_value, &index);
avro_value_get_by_name(&name_value, "jobid", &jobid_value, &index);
avro_value_set_int(&jobid_value, completed_proc_array[i].proc_name.jobid);
avro_value_get_by_name(&name_value, "vpid", &vpid_value, &index);
avro_value_set_int(&vpid_value, completed_proc_array[i].proc_name.vpid);
avro_value_get_by_name(&ProcessStatus_value, "state", &state_value, &index);
avro_value_set_enum(&state_value, completed_proc_array[i].proc_state);
avro_value_get_by_name(&ProcessStatus_value, "exit_value", &exit_value_value, &index);
avro_value_set_int(&exit_value_value, completed_proc_array[i].exit_value);
}
/* create a writer with memory buffer */
writer = avro_writer_memory(buf, sizeof(buf));
/* write record to writer (buffer) */
if (avro_value_write(writer, &record)) {
fprintf(stderr, "Unable to write record to memory buffer\n");
fprintf(stderr, "Error: %s\n", avro_strerror());
exit(1);
}
avro_writer_flush(writer);
len = avro_writer_tell(writer);
//avro_generic_value_free(&record);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
*slice = xmalloc(sizeof(avro_slice_t));
(*slice)->buffer = xmalloc(len);
(*slice)->len = len;
memcpy((*slice)->buffer, buf, len);
}