Importing module items and datasets using SPL2
You can import items such as views, custom functions, and custom data types into your modules if those items have been exported from their source module. See Exporting module items using SPL2.
You can also import datasets, such as indexes and lookups, into a module from their source.
When you add an import statement to a module, you are not physically importing an item into the module. Instead, you are adding a pointer to an item that resides in another module or namespace. When you use the item in a statement, the item is retrieved from the source.
Import requirements
To import an item, you must have three things:
- Access to the source module where the item was exported from, or access to the dataset.
- The name of the item.
- The name of the source module or dataset.
Import statement syntax
The import statement syntax is:
import <item_name> from <source_name>
Specifying the path
Depending on the source location of the item you want to import, you might need to specify a path in your import statement. You can specify either the fully qualified path to the item, or use the relative path that is based on your destination module.
Import a single item
As shown in the following image, the search $threats
is exported from the module current_incidents
. The search is exported as a view, with the name threats
.
To import the threats
view into the recent_incidents
module, you use this import statement:
import threats from current_incidents
Since the source module and the destination module are in the same namespace, there is no need to specify a path to the source module. You only need to specify the name of the source module.
Import multiple items
You can import multiple items with one import statement, as long as all of those items come from the same source module or namespace.
When you specify multiple items, you must enclose the list of items in curly brackets { }.
The import statement syntax is:
import {<item_name>, <item_name>, ...} from <source_name>
The following image shows a namespace that includes two modules, current_incidents
and resolved_threats
.
The current_incidents
module contains three search statements: $threats
, $top10threats
, and $threats_by_type
. The module also contains a function statement called dedup_threats
.
The $threats
and $threats_by_type
search statements have been exported as views. The dedup_threats
function statement has also been exported. The threats
view, the threats_by_type
view, and the dedup_threats
function are imported into the resolved_threats
module.
The import statement used to import the two views and the function that were exported from the current_incidents
module is:
import {threats, threats_by_type, dedup_threats} from current_incidents
Alternatively, you can issue separate import statements for each item. When you place the import statements on separate lines, you do not need to enclose the import statements in curly brackets { }. For example:
import threats from current_incidents
import threats_by_type from current_incidents
import dedup_threats from current_incidents
Importing items from different modules
To import items from different modules, you must use separate import statements. In the following example, a view called metrics
is imported from the biz_set_1
module and a custom function called count_sigfig_threats
is imported from the biz_set_2
module:
import metrics from biz_set_1 // A view
import count_sigfig_threats from biz_set_2 // A custom function
Import all items
You can use a single statement to import all of the items that have been exported from a specific module. The basic syntax is:
import * from <source-module>
Consider the following portion of the biz_set_1
module from which four statements are exported. These statements are designed to be shared with various teams:
biz_set_1 module
export $top10threats // A search exported as a view
export $metrics // A search exported as a view
export is_error // A custom function
export roundif // A custom function
You can import all of these items into a module by using a bulk single import statement. A bulk import statement uses a wildcard character ( * ) to import all of the items exported from the module you specify.
In the following example, all of the items exported from the biz_set_1
module are imported into the a-team
module:
a-team module
import * from biz_set_1
You can use these imported items in the a-team
module. The following example shows the top10threats
view and the roundif
custom function used in $search1
in the a-team
module:
a-team module
import * from biz_set_1
$search1 = FROM top10threats SELECT score, roundif(score, 3) as newscore
Importing all items from multiple modules
You can import all of the items from different modules using separate bulk import statements. Using import *
imports only the exported items from those modules.
In the following example all of the items exported from the biz_set_1
and biz_set_2
modules are imported into the a-team
module:
a-team module
import * from biz_set_1
import * from biz_set_2
Import indexes and other datasets
The kinds of datasets that you can import are:
- Indexes
- Lookups
- Saved searches
- Views
The datasets inside a namespace are automatically available to every module in that namespace. Those datasets do not need to be imported into the modules in that namespace.
For datasets that reside in another namespace, such as the built-in namespaces used for indexes and apps, you must:
- Have access to those datasets before you can import the datasets into a module.
- Specify the path to the dataset.
For example, to import a specific index, such as the main
index, use the following syntax:
import <index_name> from ~indexes
indexes
namespace. The shortcut is the tilde ( ~ ) symbol.For more information about namespaces, see Understanding SPL2 namespaces.
Import examples
When you use an import statement, it's important that you specify the correct path to the item you want to import. See Specifying import paths.
The following table shows examples of common import statements:
Type of import | Example |
---|---|
Import a specific index | import main from ~indexes |
Import all indexes | import * from ~indexes |
Import all lookups into the target application | import * from /apps.<app_name>.lookups |
Import a specific lookup into the target application | import my_lookup from /apps.<app_name>.lookups |
Import a specific lookup that contains a special character, such as a dot ( . ) character. | import 'my.lookup' from /apps.<app_name>.lookups |
Import all lookups into the target application using an alias called "address". To use a lookup that was imported with an alias you must preappend the alias before the lookup name, as show in the example. |
To use the
|
See also
Related information
Naming conflicts when importing items
Scope and precedence importing items
Related reference
Custom eval functions in the SPL2 Search Reference
Custom command functions in the SPL2 Search Reference