diff options
Diffstat (limited to 'storage/mroonga/vendor/groonga/lib/load.c')
| -rw-r--r-- | storage/mroonga/vendor/groonga/lib/load.c | 1229 |
1 files changed, 1229 insertions, 0 deletions
diff --git a/storage/mroonga/vendor/groonga/lib/load.c b/storage/mroonga/vendor/groonga/lib/load.c new file mode 100644 index 00000000000..ee0a1e2a045 --- /dev/null +++ b/storage/mroonga/vendor/groonga/lib/load.c @@ -0,0 +1,1229 @@ +/* -*- c-basic-offset: 2 -*- */ +/* + Copyright(C) 2009-2017 Brazil + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License version 2.1 as published by the Free Software Foundation. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#include "grn_load.h" +#include "grn_ctx_impl.h" +#include "grn_db.h" +#include "grn_util.h" + +static void +grn_loader_save_error(grn_ctx *ctx, grn_loader *loader) +{ + loader->rc = ctx->rc; + grn_strcpy(loader->errbuf, GRN_CTX_MSGSIZE, ctx->errbuf); +} + +static grn_obj * +values_add(grn_ctx *ctx, grn_loader *loader) +{ + grn_obj *res; + uint32_t curr_size = loader->values_size * sizeof(grn_obj); + if (curr_size < GRN_TEXT_LEN(&loader->values)) { + res = (grn_obj *)(GRN_TEXT_VALUE(&loader->values) + curr_size); + res->header.domain = GRN_DB_TEXT; + GRN_BULK_REWIND(res); + } else { + if (grn_bulk_space(ctx, &loader->values, sizeof(grn_obj))) { return NULL; } + res = (grn_obj *)(GRN_TEXT_VALUE(&loader->values) + curr_size); + GRN_TEXT_INIT(res, 0); + } + loader->values_size++; + loader->last = res; + return res; +} + +static grn_obj * +values_next(grn_ctx *ctx, grn_obj *value) +{ + if (value->header.domain == GRN_JSON_LOAD_OPEN_BRACKET || + value->header.domain == GRN_JSON_LOAD_OPEN_BRACE) { + value += GRN_UINT32_VALUE(value); + } + return value + 1; +} + +static int +values_len(grn_ctx *ctx, grn_obj *head, grn_obj *tail) +{ + int len; + for (len = 0; head < tail; head = values_next(ctx, head), len++) ; + return len; +} + +static grn_id +loader_add(grn_ctx *ctx, grn_obj *key) +{ + int added = 0; + grn_loader *loader = &ctx->impl->loader; + grn_id id = grn_table_add_by_key(ctx, loader->table, key, &added); + if (id == GRN_ID_NIL) { + grn_loader_save_error(ctx, loader); + return id; + } + if (!added && loader->ifexists) { + grn_obj *v = grn_expr_get_var_by_offset(ctx, loader->ifexists, 0); + grn_obj *result; + GRN_RECORD_SET(ctx, v, id); + result = grn_expr_exec(ctx, loader->ifexists, 0); + if (!grn_obj_is_true(ctx, result)) { + id = 0; + } + } + return id; +} + +static void +add_weight_vector(grn_ctx *ctx, + grn_obj *column, + grn_obj *value, + grn_obj *vector) +{ + unsigned int i, n; + grn_obj weight_buffer; + + n = GRN_UINT32_VALUE(value); + GRN_UINT32_INIT(&weight_buffer, 0); + for (i = 0; i < n; i += 2) { + grn_rc rc; + grn_obj *key, *weight; + + key = value + 1 + i; + weight = key + 1; + + GRN_BULK_REWIND(&weight_buffer); + rc = grn_obj_cast(ctx, weight, &weight_buffer, GRN_TRUE); + if (rc != GRN_SUCCESS) { + grn_obj *range; + range = grn_ctx_at(ctx, weight_buffer.header.domain); + ERR_CAST(column, range, weight); + grn_obj_unlink(ctx, range); + break; + } + grn_vector_add_element(ctx, + vector, + GRN_BULK_HEAD(key), + GRN_BULK_VSIZE(key), + GRN_UINT32_VALUE(&weight_buffer), + key->header.domain); + } + GRN_OBJ_FIN(ctx, &weight_buffer); +} + +static void +set_vector(grn_ctx *ctx, grn_obj *column, grn_id id, grn_obj *vector) +{ + int n = GRN_UINT32_VALUE(vector); + grn_obj buf, *v = vector + 1; + grn_id range_id; + grn_obj *range; + + range_id = DB_OBJ(column)->range; + range = grn_ctx_at(ctx, range_id); + if (grn_obj_is_table(ctx, range)) { + GRN_RECORD_INIT(&buf, GRN_OBJ_VECTOR, range_id); + while (n--) { + grn_bool cast_failed = GRN_FALSE; + grn_obj record, *element = v; + if (range_id != element->header.domain) { + GRN_RECORD_INIT(&record, 0, range_id); + if (grn_obj_cast(ctx, element, &record, GRN_TRUE)) { + cast_failed = GRN_TRUE; + ERR_CAST(column, range, element); + } + element = &record; + } + if (!cast_failed) { + GRN_UINT32_PUT(ctx, &buf, GRN_RECORD_VALUE(element)); + } + if (element == &record) { GRN_OBJ_FIN(ctx, element); } + v = values_next(ctx, v); + } + } else { + if (((struct _grn_type *)range)->obj.header.flags & GRN_OBJ_KEY_VAR_SIZE) { + GRN_TEXT_INIT(&buf, GRN_OBJ_VECTOR); + while (n--) { + switch (v->header.domain) { + case GRN_DB_TEXT : + { + grn_bool cast_failed = GRN_FALSE; + grn_obj casted_element, *element = v; + if (range_id != element->header.domain) { + GRN_OBJ_INIT(&casted_element, GRN_BULK, 0, range_id); + if (grn_obj_cast(ctx, element, &casted_element, GRN_TRUE)) { + cast_failed = GRN_TRUE; + ERR_CAST(column, range, element); + } + element = &casted_element; + } + if (!cast_failed) { + grn_vector_add_element(ctx, &buf, + GRN_TEXT_VALUE(element), + GRN_TEXT_LEN(element), + 0, + element->header.domain); + } + if (element == &casted_element) { GRN_OBJ_FIN(ctx, element); } + break; + } + case GRN_JSON_LOAD_OPEN_BRACE : + add_weight_vector(ctx, column, v, &buf); + n -= GRN_UINT32_VALUE(v); + break; + default : + ERR(GRN_INVALID_ARGUMENT, "array must contain string or object"); + break; + } + v = values_next(ctx, v); + } + } else { + grn_id value_size = ((grn_db_obj *)range)->range; + GRN_VALUE_FIX_SIZE_INIT(&buf, GRN_OBJ_VECTOR, range_id); + while (n--) { + grn_bool cast_failed = GRN_FALSE; + grn_obj casted_element, *element = v; + if (range_id != element->header.domain) { + GRN_OBJ_INIT(&casted_element, GRN_BULK, 0, range_id); + if (grn_obj_cast(ctx, element, &casted_element, GRN_TRUE)) { + cast_failed = GRN_TRUE; + ERR_CAST(column, range, element); + } + element = &casted_element; + } + if (!cast_failed) { + grn_bulk_write(ctx, &buf, GRN_TEXT_VALUE(element), value_size); + } + if (element == &casted_element) { GRN_OBJ_FIN(ctx, element); } + v = values_next(ctx, v); + } + } + } + grn_obj_set_value(ctx, column, id, &buf, GRN_OBJ_SET); + GRN_OBJ_FIN(ctx, &buf); +} + +static void +set_weight_vector(grn_ctx *ctx, grn_obj *column, grn_id id, grn_obj *value) +{ + if (!grn_obj_is_weight_vector_column(ctx, column)) { + char column_name[GRN_TABLE_MAX_KEY_SIZE]; + int column_name_size; + column_name_size = grn_obj_name(ctx, column, column_name, + GRN_TABLE_MAX_KEY_SIZE); + ERR(GRN_INVALID_ARGUMENT, + "<%.*s>: columns except weight vector column don't support object value", + column_name_size, column_name); + return; + } + + { + grn_obj vector; + + GRN_TEXT_INIT(&vector, GRN_OBJ_VECTOR); + add_weight_vector(ctx, column, value, &vector); + grn_obj_set_value(ctx, column, id, &vector, GRN_OBJ_SET); + GRN_OBJ_FIN(ctx, &vector); + } +} + +static inline int +name_equal(const char *p, unsigned int size, const char *name) +{ + if (strlen(name) != size) { return 0; } + if (*p != GRN_DB_PSEUDO_COLUMN_PREFIX) { return 0; } + return !memcmp(p + 1, name + 1, size - 1); +} + +static void +report_set_column_value_failure(grn_ctx *ctx, + grn_obj *key, + const char *column_name, + unsigned int column_name_size, + grn_obj *column_value) +{ + grn_obj key_inspected, column_value_inspected; + + GRN_TEXT_INIT(&key_inspected, 0); + GRN_TEXT_INIT(&column_value_inspected, 0); + grn_inspect_limited(ctx, &key_inspected, key); + grn_inspect_limited(ctx, &column_value_inspected, column_value); + GRN_LOG(ctx, GRN_LOG_ERROR, + "[table][load] failed to set column value: %s: " + "key: <%.*s>, column: <%.*s>, value: <%.*s>", + ctx->errbuf, + (int)GRN_TEXT_LEN(&key_inspected), + GRN_TEXT_VALUE(&key_inspected), + column_name_size, + column_name, + (int)GRN_TEXT_LEN(&column_value_inspected), + GRN_TEXT_VALUE(&column_value_inspected)); + GRN_OBJ_FIN(ctx, &key_inspected); + GRN_OBJ_FIN(ctx, &column_value_inspected); +} + +static grn_id +parse_id_value(grn_ctx *ctx, grn_obj *value) +{ + switch (value->header.type) { + case GRN_DB_UINT32 : + return GRN_UINT32_VALUE(value); + case GRN_DB_INT32 : + return GRN_INT32_VALUE(value); + default : + { + grn_id id = GRN_ID_NIL; + grn_obj casted_value; + GRN_UINT32_INIT(&casted_value, 0); + if (grn_obj_cast(ctx, value, &casted_value, GRN_FALSE) != GRN_SUCCESS) { + grn_obj inspected; + GRN_TEXT_INIT(&inspected, 0); + grn_inspect(ctx, &inspected, value); + ERR(GRN_INVALID_ARGUMENT, + "<%s>: failed to cast to <UInt32>: <%.*s>", + GRN_COLUMN_NAME_ID, + (int)GRN_TEXT_LEN(&inspected), + GRN_TEXT_VALUE(&inspected)); + GRN_OBJ_FIN(ctx, &inspected); + } else { + id = GRN_UINT32_VALUE(&casted_value); + } + GRN_OBJ_FIN(ctx, &casted_value); + return id; + } + } +} + +static void +bracket_close(grn_ctx *ctx, grn_loader *loader) +{ + grn_id id = GRN_ID_NIL; + grn_obj *value, *value_end, *id_value = NULL, *key_value = NULL; + grn_obj *col, **cols; /* Columns except _id and _key. */ + uint32_t i, begin; + uint32_t ncols; /* Number of columns except _id and _key. */ + uint32_t nvalues; /* Number of values in brackets. */ + uint32_t depth; + grn_bool is_record_load = GRN_FALSE; + + cols = (grn_obj **)GRN_BULK_HEAD(&loader->columns); + ncols = GRN_BULK_VSIZE(&loader->columns) / sizeof(grn_obj *); + GRN_UINT32_POP(&loader->level, begin); + value = (grn_obj *)GRN_TEXT_VALUE(&loader->values) + begin; + value_end = (grn_obj *)GRN_TEXT_VALUE(&loader->values) + loader->values_size; + GRN_ASSERT(value->header.domain == GRN_JSON_LOAD_OPEN_BRACKET); + GRN_UINT32_SET(ctx, value, loader->values_size - begin - 1); + value++; + depth = GRN_BULK_VSIZE(&loader->level); + if (depth > sizeof(uint32_t) * loader->emit_level) { + return; + } + if (depth == 0 || !loader->table || + loader->columns_status == GRN_LOADER_COLUMNS_BROKEN) { + goto exit; + } + nvalues = values_len(ctx, value, value_end); + + if (loader->columns_status == GRN_LOADER_COLUMNS_UNSET) { + /* + * Target columns and _id or _key are not specified yet and values are + * handled as column names and "_id" or "_key". + */ + for (i = 0; i < nvalues; i++) { + const char *col_name; + unsigned int col_name_size; + if (value->header.domain != GRN_DB_TEXT) { + grn_obj buffer; + GRN_TEXT_INIT(&buffer, 0); + grn_inspect(ctx, &buffer, value); + ERR(GRN_INVALID_ARGUMENT, + "column name must be string: <%.*s>", + (int)GRN_TEXT_LEN(&buffer), GRN_TEXT_VALUE(&buffer)); + grn_loader_save_error(ctx, loader); + GRN_OBJ_FIN(ctx, &buffer); + loader->columns_status = GRN_LOADER_COLUMNS_BROKEN; + goto exit; + } + col_name = GRN_TEXT_VALUE(value); + col_name_size = GRN_TEXT_LEN(value); + col = grn_obj_column(ctx, loader->table, col_name, col_name_size); + if (!col) { + ERR(GRN_INVALID_ARGUMENT, "nonexistent column: <%.*s>", + col_name_size, col_name); + grn_loader_save_error(ctx, loader); + loader->columns_status = GRN_LOADER_COLUMNS_BROKEN; + goto exit; + } + if (name_equal(col_name, col_name_size, GRN_COLUMN_NAME_ID)) { + grn_obj_unlink(ctx, col); + if (loader->id_offset != -1 || loader->key_offset != -1) { + /* _id and _key must not appear more than once. */ + if (loader->id_offset != -1) { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_ID, i, + GRN_COLUMN_NAME_ID, loader->id_offset); + } else { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_ID, i, + GRN_COLUMN_NAME_KEY, loader->key_offset); + } + grn_loader_save_error(ctx, loader); + loader->columns_status = GRN_LOADER_COLUMNS_BROKEN; + goto exit; + } + loader->id_offset = i; + } else if (name_equal(col_name, col_name_size, GRN_COLUMN_NAME_KEY)) { + grn_obj_unlink(ctx, col); + if (loader->id_offset != -1 || loader->key_offset != -1) { + /* _id and _key must not appear more than once. */ + if (loader->id_offset != -1) { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_KEY, i, + GRN_COLUMN_NAME_ID, loader->id_offset); + } else { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_KEY, i, + GRN_COLUMN_NAME_KEY, loader->key_offset); + } + grn_loader_save_error(ctx, loader); + loader->columns_status = GRN_LOADER_COLUMNS_BROKEN; + goto exit; + } + loader->key_offset = i; + } else { + GRN_PTR_PUT(ctx, &loader->columns, col); + } + value++; + } + switch (loader->table->header.type) { + case GRN_TABLE_HASH_KEY : + case GRN_TABLE_PAT_KEY : + case GRN_TABLE_DAT_KEY : + if (loader->id_offset == -1 && loader->key_offset == -1) { + ERR(GRN_INVALID_ARGUMENT, "missing id or key column"); + grn_loader_save_error(ctx, loader); + loader->columns_status = GRN_LOADER_COLUMNS_BROKEN; + goto exit; + } + break; + } + loader->columns_status = GRN_LOADER_COLUMNS_SET; + goto exit; + } + + is_record_load = GRN_TRUE; + + /* Target columns and _id or _key are already specified. */ + if (!nvalues) { + /* + * Accept empty arrays because a dump command may output a load command + * which contains empty arrays for a table with deleted records. + */ + id = grn_table_add(ctx, loader->table, NULL, 0, NULL); + } else { + uint32_t expected_nvalues = ncols; + if (loader->id_offset != -1 || loader->key_offset != -1) { + expected_nvalues++; + } + if (nvalues != expected_nvalues) { + ERR(GRN_INVALID_ARGUMENT, + "unexpected #values: expected:%u, actual:%u", + expected_nvalues, nvalues); + grn_loader_save_error(ctx, loader); + goto exit; + } + if (loader->id_offset != -1) { + id_value = value + loader->id_offset; + id = parse_id_value(ctx, id_value); + if (grn_table_at(ctx, loader->table, id) == GRN_ID_NIL) { + id = grn_table_add(ctx, loader->table, NULL, 0, NULL); + } + } else if (loader->key_offset != -1) { + key_value = value + loader->key_offset; + id = loader_add(ctx, key_value); + } else { + id = grn_table_add(ctx, loader->table, NULL, 0, NULL); + } + } + if (id == GRN_ID_NIL) { + /* Target record is not available. */ + goto exit; + } + + for (i = 0; i < nvalues; i++, value = values_next(ctx, value)) { + if (i == loader->id_offset || i == loader->key_offset) { + /* Skip _id and _key, because it's already used to get id. */ + continue; + } + col = *cols; + if (value->header.domain == GRN_JSON_LOAD_OPEN_BRACKET) { + set_vector(ctx, col, id, value); + } else if (value->header.domain == GRN_JSON_LOAD_OPEN_BRACE) { + set_weight_vector(ctx, col, id, value); + } else { + grn_obj_set_value(ctx, col, id, value, GRN_OBJ_SET); + } + if (ctx->rc != GRN_SUCCESS) { + char column_name[GRN_TABLE_MAX_KEY_SIZE]; + unsigned int column_name_size; + grn_loader_save_error(ctx, loader); + column_name_size = grn_obj_name(ctx, col, column_name, + GRN_TABLE_MAX_KEY_SIZE); + report_set_column_value_failure(ctx, key_value, + column_name, column_name_size, + value); + ERRCLR(ctx); + } + cols++; + } + if (loader->each) { + grn_obj *v = grn_expr_get_var_by_offset(ctx, loader->each, 0); + GRN_RECORD_SET(ctx, v, id); + grn_expr_exec(ctx, loader->each, 0); + } + loader->nrecords++; +exit: + if (is_record_load) { + if (loader->output_ids) { + GRN_UINT32_PUT(ctx, &(loader->ids), id); + } + if (loader->output_errors) { + GRN_INT32_PUT(ctx, &(loader->return_codes), ctx->rc); + grn_vector_add_element(ctx, + &(loader->error_messages), + ctx->errbuf, + strlen(ctx->errbuf), + 0, + GRN_DB_TEXT); + } + } + loader->values_size = begin; + ERRCLR(ctx); +} + +static void +brace_close(grn_ctx *ctx, grn_loader *loader) +{ + grn_id id = GRN_ID_NIL; + grn_obj *value, *value_begin, *value_end; + grn_obj *id_value = NULL, *key_value = NULL; + uint32_t begin; + + GRN_UINT32_POP(&loader->level, begin); + value_begin = (grn_obj *)GRN_TEXT_VALUE(&loader->values) + begin; + value_end = (grn_obj *)GRN_TEXT_VALUE(&loader->values) + loader->values_size; + GRN_ASSERT(value->header.domain == GRN_JSON_LOAD_OPEN_BRACE); + GRN_UINT32_SET(ctx, value_begin, loader->values_size - begin - 1); + value_begin++; + if (GRN_BULK_VSIZE(&loader->level) > sizeof(uint32_t) * loader->emit_level) { + return; + } + if (!loader->table) { + goto exit; + } + + /* Scan values to find _id or _key. */ + for (value = value_begin; value + 1 < value_end; + value = values_next(ctx, value)) { + const char *name = GRN_TEXT_VALUE(value); + unsigned int name_size = GRN_TEXT_LEN(value); + if (value->header.domain != GRN_DB_TEXT) { + grn_obj buffer; + GRN_TEXT_INIT(&buffer, 0); + grn_inspect(ctx, &buffer, value); + GRN_LOG(ctx, GRN_LOG_ERROR, + "column name must be string: <%.*s>", + (int)GRN_TEXT_LEN(&buffer), GRN_TEXT_VALUE(&buffer)); + GRN_OBJ_FIN(ctx, &buffer); + goto exit; + } + value++; + if (name_equal(name, name_size, GRN_COLUMN_NAME_ID)) { + if (id_value || key_value) { + if (loader->table->header.type == GRN_TABLE_NO_KEY) { + GRN_LOG(ctx, GRN_LOG_ERROR, "duplicated '_id' column"); + goto exit; + } else { + GRN_LOG(ctx, GRN_LOG_ERROR, + "duplicated key columns: %s and %s", + id_value ? GRN_COLUMN_NAME_ID : GRN_COLUMN_NAME_KEY, + GRN_COLUMN_NAME_ID); + goto exit; + } + } + id_value = value; + } else if (name_equal(name, name_size, GRN_COLUMN_NAME_KEY)) { + if (id_value || key_value) { + GRN_LOG(ctx, GRN_LOG_ERROR, + "duplicated key columns: %s and %s", + id_value ? GRN_COLUMN_NAME_ID : GRN_COLUMN_NAME_KEY, + GRN_COLUMN_NAME_KEY); + goto exit; + } + key_value = value; + } + } + + switch (loader->table->header.type) { + case GRN_TABLE_HASH_KEY : + case GRN_TABLE_PAT_KEY : + case GRN_TABLE_DAT_KEY : + /* The target table requires _id or _key. */ + if (!id_value && !key_value) { + GRN_LOG(ctx, GRN_LOG_ERROR, "neither _key nor _id is assigned"); + goto exit; + } + break; + default : + /* The target table does not have _key. */ + if (key_value) { + GRN_LOG(ctx, GRN_LOG_ERROR, "nonexistent key value"); + goto exit; + } + break; + } + + if (id_value) { + id = parse_id_value(ctx, id_value); + if (grn_table_at(ctx, loader->table, id) == GRN_ID_NIL) { + if (ctx->rc == GRN_SUCCESS) { + id = grn_table_add(ctx, loader->table, NULL, 0, NULL); + } + } + } else if (key_value) { + id = loader_add(ctx, key_value); + } else { + id = grn_table_add(ctx, loader->table, NULL, 0, NULL); + } + if (id == GRN_ID_NIL) { + /* Target record is not available. */ + goto exit; + } + + for (value = value_begin; value + 1 < value_end; + value = values_next(ctx, value)) { + grn_obj *col; + const char *name = GRN_TEXT_VALUE(value); + unsigned int name_size = GRN_TEXT_LEN(value); + value++; + if (value == id_value || value == key_value) { + /* Skip _id and _key, because it's already used to get id. */ + continue; + } + col = grn_obj_column(ctx, loader->table, name, name_size); + if (!col) { + GRN_LOG(ctx, GRN_LOG_ERROR, "invalid column('%.*s')", + (int)name_size, name); + /* Automatic column creation is disabled. */ + /* + if (value->header.domain == GRN_JSON_LOAD_OPEN_BRACKET) { + grn_obj *v = value + 1; + col = grn_column_create(ctx, loader->table, name, name_size, + NULL, GRN_OBJ_PERSISTENT|GRN_OBJ_COLUMN_VECTOR, + grn_ctx_at(ctx, v->header.domain)); + } else { + col = grn_column_create(ctx, loader->table, name, name_size, + NULL, GRN_OBJ_PERSISTENT, + grn_ctx_at(ctx, value->header.domain)); + } + */ + } else { + if (value->header.domain == GRN_JSON_LOAD_OPEN_BRACKET) { + set_vector(ctx, col, id, value); + } else if (value->header.domain == GRN_JSON_LOAD_OPEN_BRACE) { + set_weight_vector(ctx, col, id, value); + } else { + grn_obj_set_value(ctx, col, id, value, GRN_OBJ_SET); + } + if (ctx->rc != GRN_SUCCESS) { + grn_loader_save_error(ctx, loader); + report_set_column_value_failure(ctx, key_value, + name, name_size, value); + ERRCLR(ctx); + } + grn_obj_unlink(ctx, col); + } + } + if (loader->each) { + value = grn_expr_get_var_by_offset(ctx, loader->each, 0); + GRN_RECORD_SET(ctx, value, id); + grn_expr_exec(ctx, loader->each, 0); + } + loader->nrecords++; +exit: + if (loader->output_ids) { + GRN_UINT32_PUT(ctx, &(loader->ids), id); + } + if (loader->output_errors) { + GRN_INT32_PUT(ctx, &(loader->return_codes), ctx->rc); + grn_vector_add_element(ctx, + &(loader->error_messages), + ctx->errbuf, + strlen(ctx->errbuf), + 0, + GRN_DB_TEXT); + } + loader->values_size = begin; + ERRCLR(ctx); +} + +#define JSON_READ_OPEN_BRACKET() do {\ + GRN_UINT32_PUT(ctx, &loader->level, loader->values_size);\ + values_add(ctx, loader);\ + loader->last->header.domain = GRN_JSON_LOAD_OPEN_BRACKET;\ + loader->stat = GRN_LOADER_TOKEN;\ + str++;\ +} while (0) + +#define JSON_READ_OPEN_BRACE() do {\ + GRN_UINT32_PUT(ctx, &loader->level, loader->values_size);\ + values_add(ctx, loader);\ + loader->last->header.domain = GRN_JSON_LOAD_OPEN_BRACE;\ + loader->stat = GRN_LOADER_TOKEN;\ + str++;\ +} while (0) + +static void +json_read(grn_ctx *ctx, grn_loader *loader, const char *str, unsigned int str_len) +{ + const char *const beg = str; + char c; + int len; + const char *se = str + str_len; + while (str < se) { + c = *str; + switch (loader->stat) { + case GRN_LOADER_BEGIN : + if ((len = grn_isspace(str, ctx->encoding))) { + str += len; + continue; + } + switch (c) { + case '[' : + JSON_READ_OPEN_BRACKET(); + break; + case '{' : + JSON_READ_OPEN_BRACE(); + break; + default : + ERR(GRN_INVALID_ARGUMENT, + "JSON must start with '[' or '{': <%.*s>", str_len, beg); + loader->stat = GRN_LOADER_END; + break; + } + break; + case GRN_LOADER_TOKEN : + if ((len = grn_isspace(str, ctx->encoding))) { + str += len; + continue; + } + switch (c) { + case '"' : + loader->stat = GRN_LOADER_STRING; + values_add(ctx, loader); + str++; + break; + case '[' : + JSON_READ_OPEN_BRACKET(); + break; + case '{' : + JSON_READ_OPEN_BRACE(); + break; + case ':' : + str++; + break; + case ',' : + str++; + break; + case ']' : + bracket_close(ctx, loader); + loader->stat = GRN_BULK_VSIZE(&loader->level) ? GRN_LOADER_TOKEN : GRN_LOADER_END; + if (ctx->rc == GRN_CANCEL) { + loader->stat = GRN_LOADER_END; + } + str++; + break; + case '}' : + brace_close(ctx, loader); + loader->stat = GRN_BULK_VSIZE(&loader->level) ? GRN_LOADER_TOKEN : GRN_LOADER_END; + if (ctx->rc == GRN_CANCEL) { + loader->stat = GRN_LOADER_END; + } + str++; + break; + case '+' : case '-' : case '0' : case '1' : case '2' : case '3' : + case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : + loader->stat = GRN_LOADER_NUMBER; + values_add(ctx, loader); + break; + default : + if (('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z') || ('_' == c)) { + loader->stat = GRN_LOADER_SYMBOL; + values_add(ctx, loader); + } else { + if ((len = grn_charlen(ctx, str, se))) { + GRN_LOG(ctx, GRN_LOG_ERROR, "ignored invalid char('%c') at", c); + GRN_LOG(ctx, GRN_LOG_ERROR, "%.*s", (int)(str - beg) + len, beg); + GRN_LOG(ctx, GRN_LOG_ERROR, "%*s", (int)(str - beg) + 1, "^"); + str += len; + } else { + GRN_LOG(ctx, GRN_LOG_ERROR, "ignored invalid char(\\x%.2x) after", c); + GRN_LOG(ctx, GRN_LOG_ERROR, "%.*s", (int)(str - beg), beg); + str = se; + } + } + break; + } + break; + case GRN_LOADER_SYMBOL : + if (('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z') || + ('0' <= c && c <= '9') || ('_' == c)) { + GRN_TEXT_PUTC(ctx, loader->last, c); + str++; + } else { + char *v = GRN_TEXT_VALUE(loader->last); + switch (*v) { + case 'n' : + if (GRN_TEXT_LEN(loader->last) == 4 && !memcmp(v, "null", 4)) { + loader->last->header.domain = GRN_DB_VOID; + GRN_BULK_REWIND(loader->last); + } + break; + case 't' : + if (GRN_TEXT_LEN(loader->last) == 4 && !memcmp(v, "true", 4)) { + loader->last->header.domain = GRN_DB_BOOL; + GRN_BOOL_SET(ctx, loader->last, GRN_TRUE); + } + break; + case 'f' : + if (GRN_TEXT_LEN(loader->last) == 5 && !memcmp(v, "false", 5)) { + loader->last->header.domain = GRN_DB_BOOL; + GRN_BOOL_SET(ctx, loader->last, GRN_FALSE); + } + break; + default : + break; + } + loader->stat = GRN_BULK_VSIZE(&loader->level) ? GRN_LOADER_TOKEN : GRN_LOADER_END; + } + break; + case GRN_LOADER_NUMBER : + switch (c) { + case '+' : case '-' : case '.' : case 'e' : case 'E' : + case '0' : case '1' : case '2' : case '3' : case '4' : + case '5' : case '6' : case '7' : case '8' : case '9' : + GRN_TEXT_PUTC(ctx, loader->last, c); + str++; + break; + default : + { + const char *cur, *str = GRN_BULK_HEAD(loader->last); + const char *str_end = GRN_BULK_CURR(loader->last); + int64_t i = grn_atoll(str, str_end, &cur); + if (cur == str_end) { + loader->last->header.domain = GRN_DB_INT64; + GRN_INT64_SET(ctx, loader->last, i); + } else if (cur != str) { + uint64_t i = grn_atoull(str, str_end, &cur); + if (cur == str_end) { + loader->last->header.domain = GRN_DB_UINT64; + GRN_UINT64_SET(ctx, loader->last, i); + } else if (cur != str) { + double d; + char *end; + grn_obj buf; + GRN_TEXT_INIT(&buf, 0); + GRN_TEXT_PUT(ctx, &buf, str, GRN_BULK_VSIZE(loader->last)); + GRN_TEXT_PUTC(ctx, &buf, '\0'); + errno = 0; + d = strtod(GRN_TEXT_VALUE(&buf), &end); + if (!errno && end + 1 == GRN_BULK_CURR(&buf)) { + loader->last->header.domain = GRN_DB_FLOAT; + GRN_FLOAT_SET(ctx, loader->last, d); + } + GRN_OBJ_FIN(ctx, &buf); + } + } + } + loader->stat = GRN_BULK_VSIZE(&loader->level) ? GRN_LOADER_TOKEN : GRN_LOADER_END; + break; + } + break; + case GRN_LOADER_STRING : + switch (c) { + case '\\' : + loader->stat = GRN_LOADER_STRING_ESC; + str++; + break; + case '"' : + str++; + loader->stat = GRN_BULK_VSIZE(&loader->level) ? GRN_LOADER_TOKEN : GRN_LOADER_END; + /* + *(GRN_BULK_CURR(loader->last)) = '\0'; + GRN_LOG(ctx, GRN_LOG_ALERT, "read str(%s)", GRN_TEXT_VALUE(loader->last)); + */ + break; + default : + if ((len = grn_charlen(ctx, str, se))) { + GRN_TEXT_PUT(ctx, loader->last, str, len); + str += len; + } else { + GRN_LOG(ctx, GRN_LOG_ERROR, "ignored invalid char(\\x%.2x) after", c); + GRN_LOG(ctx, GRN_LOG_ERROR, "%.*s", (int)(str - beg), beg); + str = se; + } + break; + } + break; + case GRN_LOADER_STRING_ESC : + switch (c) { + case 'b' : + GRN_TEXT_PUTC(ctx, loader->last, '\b'); + loader->stat = GRN_LOADER_STRING; + break; + case 'f' : + GRN_TEXT_PUTC(ctx, loader->last, '\f'); + loader->stat = GRN_LOADER_STRING; + break; + case 'n' : + GRN_TEXT_PUTC(ctx, loader->last, '\n'); + loader->stat = GRN_LOADER_STRING; + break; + case 'r' : + GRN_TEXT_PUTC(ctx, loader->last, '\r'); + loader->stat = GRN_LOADER_STRING; + break; + case 't' : + GRN_TEXT_PUTC(ctx, loader->last, '\t'); + loader->stat = GRN_LOADER_STRING; + break; + case 'u' : + loader->stat = GRN_LOADER_UNICODE0; + break; + default : + GRN_TEXT_PUTC(ctx, loader->last, c); + loader->stat = GRN_LOADER_STRING; + break; + } + str++; + break; + case GRN_LOADER_UNICODE0 : + switch (c) { + case '0' : case '1' : case '2' : case '3' : case '4' : + case '5' : case '6' : case '7' : case '8' : case '9' : + loader->unichar = (c - '0') * 0x1000; + break; + case 'a' : case 'b' : case 'c' : case 'd' : case 'e' : case 'f' : + loader->unichar = (c - 'a' + 10) * 0x1000; + break; + case 'A' : case 'B' : case 'C' : case 'D' : case 'E' : case 'F' : + loader->unichar = (c - 'A' + 10) * 0x1000; + break; + default : + ;// todo : error + } + loader->stat = GRN_LOADER_UNICODE1; + str++; + break; + case GRN_LOADER_UNICODE1 : + switch (c) { + case '0' : case '1' : case '2' : case '3' : case '4' : + case '5' : case '6' : case '7' : case '8' : case '9' : + loader->unichar += (c - '0') * 0x100; + break; + case 'a' : case 'b' : case 'c' : case 'd' : case 'e' : case 'f' : + loader->unichar += (c - 'a' + 10) * 0x100; + break; + case 'A' : case 'B' : case 'C' : case 'D' : case 'E' : case 'F' : + loader->unichar += (c - 'A' + 10) * 0x100; + break; + default : + ;// todo : error + } + loader->stat = GRN_LOADER_UNICODE2; + str++; + break; + case GRN_LOADER_UNICODE2 : + switch (c) { + case '0' : case '1' : case '2' : case '3' : case '4' : + case '5' : case '6' : case '7' : case '8' : case '9' : + loader->unichar += (c - '0') * 0x10; + break; + case 'a' : case 'b' : case 'c' : case 'd' : case 'e' : case 'f' : + loader->unichar += (c - 'a' + 10) * 0x10; + break; + case 'A' : case 'B' : case 'C' : case 'D' : case 'E' : case 'F' : + loader->unichar += (c - 'A' + 10) * 0x10; + break; + default : + ;// todo : error + } + loader->stat = GRN_LOADER_UNICODE3; + str++; + break; + case GRN_LOADER_UNICODE3 : + switch (c) { + case '0' : case '1' : case '2' : case '3' : case '4' : + case '5' : case '6' : case '7' : case '8' : case '9' : + loader->unichar += (c - '0'); + break; + case 'a' : case 'b' : case 'c' : case 'd' : case 'e' : case 'f' : + loader->unichar += (c - 'a' + 10); + break; + case 'A' : case 'B' : case 'C' : case 'D' : case 'E' : case 'F' : + loader->unichar += (c - 'A' + 10); + break; + default : + ;// todo : error + } + { + uint32_t u = loader->unichar; + if (u < 0x80) { + GRN_TEXT_PUTC(ctx, loader->last, u); + } else { + if (u < 0x800) { + GRN_TEXT_PUTC(ctx, loader->last, ((u >> 6) & 0x1f) | 0xc0); + } else { + GRN_TEXT_PUTC(ctx, loader->last, (u >> 12) | 0xe0); + GRN_TEXT_PUTC(ctx, loader->last, ((u >> 6) & 0x3f) | 0x80); + } + GRN_TEXT_PUTC(ctx, loader->last, (u & 0x3f) | 0x80); + } + } + loader->stat = GRN_LOADER_STRING; + str++; + break; + case GRN_LOADER_END : + str = se; + break; + } + } +} + +#undef JSON_READ_OPEN_BRACKET +#undef JSON_READ_OPEN_BRACE + +/* + * grn_loader_parse_columns parses a columns parameter. + * Columns except _id and _key are appended to loader->columns. + * If it contains _id or _key, loader->id_offset or loader->key_offset is set. + */ +static grn_rc +grn_loader_parse_columns(grn_ctx *ctx, grn_loader *loader, + const char *str, unsigned int str_size) +{ + const char *ptr = str, *ptr_end = ptr + str_size, *rest; + const char *tokens[256], *token_end; + while (ptr < ptr_end) { + int i, n = grn_tokenize(ptr, ptr_end - ptr, tokens, 256, &rest); + for (i = 0; i < n; i++) { + grn_obj *column; + token_end = tokens[i]; + while (ptr < token_end && (' ' == *ptr || ',' == *ptr)) { + ptr++; + } + column = grn_obj_column(ctx, loader->table, ptr, token_end - ptr); + if (!column) { + ERR(GRN_INVALID_ARGUMENT, "nonexistent column: <%.*s>", + (int)(token_end - ptr), ptr); + return ctx->rc; + } + if (name_equal(ptr, token_end - ptr, GRN_COLUMN_NAME_ID)) { + grn_obj_unlink(ctx, column); + if (loader->id_offset != -1 || loader->key_offset != -1) { + /* _id and _key must not appear more than once. */ + if (loader->id_offset != -1) { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_ID, i, + GRN_COLUMN_NAME_ID, loader->id_offset); + } else { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_ID, i, + GRN_COLUMN_NAME_KEY, loader->key_offset); + } + return ctx->rc; + } + loader->id_offset = i; + } else if (name_equal(ptr, token_end - ptr, GRN_COLUMN_NAME_KEY)) { + grn_obj_unlink(ctx, column); + if (loader->id_offset != -1 || loader->key_offset != -1) { + /* _id and _key must not appear more than once. */ + if (loader->id_offset != -1) { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_KEY, i, + GRN_COLUMN_NAME_ID, loader->id_offset); + } else { + ERR(GRN_INVALID_ARGUMENT, + "duplicated id and key columns: <%s> at %d and <%s> at %d", + GRN_COLUMN_NAME_KEY, i, + GRN_COLUMN_NAME_KEY, loader->key_offset); + } + return ctx->rc; + } + loader->key_offset = i; + } else { + GRN_PTR_PUT(ctx, &loader->columns, column); + } + ptr = token_end; + } + ptr = rest; + } + switch (loader->table->header.type) { + case GRN_TABLE_HASH_KEY : + case GRN_TABLE_PAT_KEY : + case GRN_TABLE_DAT_KEY : + if (loader->id_offset == -1 && loader->key_offset == -1) { + ERR(GRN_INVALID_ARGUMENT, "missing id or key column"); + return ctx->rc; + } + break; + } + return ctx->rc; +} + +static grn_com_addr *addr; + +void +grn_load_internal(grn_ctx *ctx, grn_load_input *input) +{ + grn_loader *loader = &ctx->impl->loader; + + loader->emit_level = input->emit_level; + if (ctx->impl->edge) { + grn_edge *edge = grn_edges_add_communicator(ctx, addr); + grn_obj *msg = grn_msg_open(ctx, edge->com, &ctx->impl->edge->send_old); + /* build msg */ + grn_edge_dispatch(ctx, edge, msg); + } + if (input->table.length > 0) { + grn_ctx_loader_clear(ctx); + loader->input_type = input->type; + if (grn_db_check_name(ctx, input->table.value, input->table.length)) { + GRN_DB_CHECK_NAME_ERR("[table][load]", + input->table.value, + (int)(input->table.length)); + loader->stat = GRN_LOADER_END; + return; + } + loader->table = grn_ctx_get(ctx, input->table.value, input->table.length); + if (!loader->table) { + ERR(GRN_INVALID_ARGUMENT, + "nonexistent table: <%.*s>", + (int)(input->table.length), + input->table.value); + loader->stat = GRN_LOADER_END; + return; + } + if (input->columns.length > 0) { + grn_rc rc = grn_loader_parse_columns(ctx, + loader, + input->columns.value, + input->columns.length); + if (rc != GRN_SUCCESS) { + loader->columns_status = GRN_LOADER_COLUMNS_BROKEN; + loader->stat = GRN_LOADER_END; + return; + } + loader->columns_status = GRN_LOADER_COLUMNS_SET; + } + if (input->if_exists.length > 0) { + grn_obj *v; + GRN_EXPR_CREATE_FOR_QUERY(ctx, loader->table, loader->ifexists, v); + if (loader->ifexists && v) { + grn_expr_parse(ctx, + loader->ifexists, + input->if_exists.value, + input->if_exists.length, + NULL, GRN_OP_EQUAL, GRN_OP_AND, + GRN_EXPR_SYNTAX_SCRIPT|GRN_EXPR_ALLOW_UPDATE); + } + } + if (input->each.length > 0) { + grn_obj *v; + GRN_EXPR_CREATE_FOR_QUERY(ctx, loader->table, loader->each, v); + if (loader->each && v) { + grn_expr_parse(ctx, loader->each, + input->each.value, + input->each.length, + NULL, GRN_OP_EQUAL, GRN_OP_AND, + GRN_EXPR_SYNTAX_SCRIPT|GRN_EXPR_ALLOW_UPDATE); + } + } + loader->output_ids = input->output_ids; + loader->output_errors = input->output_errors; + } else { + if (!loader->table) { + ERR(GRN_INVALID_ARGUMENT, "mandatory \"table\" parameter is absent"); + loader->stat = GRN_LOADER_END; + return; + } + } + switch (loader->input_type) { + case GRN_CONTENT_JSON : + json_read(ctx, loader, input->values.value, input->values.length); + break; + case GRN_CONTENT_NONE : + case GRN_CONTENT_TSV : + case GRN_CONTENT_XML : + case GRN_CONTENT_MSGPACK : + case GRN_CONTENT_GROONGA_COMMAND_LIST : + ERR(GRN_FUNCTION_NOT_IMPLEMENTED, "unsupported input_type"); + loader->stat = GRN_LOADER_END; + // todo + break; + } +} + +grn_rc +grn_load(grn_ctx *ctx, grn_content_type input_type, + const char *table, unsigned int table_len, + const char *columns, unsigned int columns_len, + const char *values, unsigned int values_len, + const char *ifexists, unsigned int ifexists_len, + const char *each, unsigned int each_len) +{ + if (!ctx || !ctx->impl) { + ERR(GRN_INVALID_ARGUMENT, "db not initialized"); + return ctx->rc; + } + GRN_API_ENTER; + { + grn_load_input input; + input.type = input_type; + input.table.value = table; + input.table.length = table_len; + input.columns.value = columns; + input.columns.length = columns_len; + input.values.value = values; + input.values.length = values_len; + input.if_exists.value = ifexists; + input.if_exists.length = ifexists_len; + input.each.value = each; + input.each.length = each_len; + input.output_ids = GRN_FALSE; + input.output_errors = GRN_FALSE; + input.emit_level = 1; + grn_load_internal(ctx, &input); + } + GRN_API_RETURN(ctx->rc); +} |