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ContextUtils.js
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ContextUtils.js
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/**
* @type {StreamProducerContextAttribute[]}
* @see https://wikitech.wikimedia.org/wiki/Metrics_Platform/Contextual_attributes
*/
const VALID_ATTRIBUTE_NAMES = [
'agent_client_platform',
'agent_client_platform_family',
'page_id',
'page_title',
'page_namespace',
'page_namespace_name',
'page_revision_id',
'page_wikidata_id',
'page_wikidata_qid',
'page_content_language',
'page_is_redirect',
'page_user_groups_allowed_to_move',
'page_user_groups_allowed_to_edit',
'mediawiki_skin',
'mediawiki_version',
'mediawiki_is_production',
'mediawiki_is_debug_mode',
'mediawiki_database',
'mediawiki_site_content_language',
'mediawiki_site_content_language_variant',
'performer_is_logged_in',
'performer_id',
'performer_name',
'performer_session_id',
'performer_active_browsing_session_token',
'performer_pageview_id',
'performer_groups',
'performer_is_bot',
'performer_is_temp',
'performer_language',
'performer_language_variant',
'performer_can_probably_edit_page',
'performer_edit_count',
'performer_edit_count_bucket',
'performer_registration_dt'
];
/**
* @param {ContextAttributes} from
* @param {StreamProducerContextAttribute} name
* @return {*}
*/
function getAttributeByName( from, name ) {
const index = name.indexOf( '_' );
const primaryKey = name.slice( 0, index );
// @ts-ignore TS7053
if ( !from[ primaryKey ] ) {
return null;
}
const secondaryKey = name.slice( index + 1 );
// @ts-ignore TS7053
const value = from[ primaryKey ][ secondaryKey ];
return ( value === undefined || value === null ) ? null : value;
}
/**
* @param {ContextAttributes} from
* @param {ContextAttributes} to
* @param {StreamProducerContextAttribute} name
*/
function copyAttributeByName( from, to, name ) {
const index = name.indexOf( '_' );
const primaryKey = name.slice( 0, index );
const secondaryKey = name.slice( index + 1 );
// @ts-ignore TS7053
const value = from[ primaryKey ] ? from[ primaryKey ][ secondaryKey ] : null;
if ( value === undefined || value === null ) {
return;
}
// @ts-ignore TS7053
to[ primaryKey ] = to[ primaryKey ] || {};
// @ts-ignore TS7053
to[ primaryKey ][ secondaryKey ] = value;
}
/**
* @param {ContextAttributes} from
* @param {ContextAttributes} to
*/
function copyAttributes( from, to ) {
VALID_ATTRIBUTE_NAMES.forEach( ( name ) => copyAttributeByName( from, to, name ) );
}
module.exports = {
getAttributeByName: getAttributeByName,
copyAttributeByName: copyAttributeByName,
copyAttributes: copyAttributes
};

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