Method _innerGetDataStore

src/data/helper/sourceManager.ts:386–423

(
        storeDims: DataStoreDimensionDefine[],
        seriesSource: Source,
        sourceReadKey: string
    )

    }

    private _innerGetDataStore(
        storeDims: DataStoreDimensionDefine[],
        seriesSource: Source,
        sourceReadKey: string
    ): DataStore | undefined {
        // TODO Can use other sourceIndex?
        const sourceIndex = 0;

        const storeList = this._storeList;

        let cachedStoreMap = storeList[sourceIndex];

        if (!cachedStoreMap) {
            cachedStoreMap = storeList[sourceIndex] = {};
        }

        let cachedStore = cachedStoreMap[sourceReadKey];
        if (!cachedStore) {
            const upSourceMgr = this._getUpstreamSourceManagers()[0];

            if (isSeries(this._sourceHost) && upSourceMgr) {
                cachedStore = upSourceMgr._innerGetDataStore(
                    storeDims, seriesSource, sourceReadKey
                );
            }
            else {
                cachedStore = new DataStore();
                // Always create store from source of series.
                cachedStore.initData(
                    new DefaultDataProvider(seriesSource, storeDims.length),
                    storeDims
                );
            }
            cachedStoreMap[sourceReadKey] = cachedStore;
        }

        return cachedStore;
    }

    /**
     * PENDING: Is it fast enough?