func NewWithDataFile(dataFile dbio.DataFile) (SimpleJSONDB, error) {
if err := core.FormatDataFileIfNeeded(dataFile); err != nil {
return nil, err
}
dataBuffer := dbio.NewDataBuffer(dataFile, BUFFER_SIZE)
repo := core.NewDataBlockRepository(dataBuffer)
index := core.NewUint32Index(dataBuffer, BTREE_IDX_BRANCH_MAX_ENTRIES, BTREE_IDX_LEAF_MAX_ENTRIES)
return &simpleJSONDB{dataFile, dataBuffer, repo, index}, nil
}
func createIndex(t *testing.T, totalUsableBlocks, bufferFrames, branchCapacity int, leafCapacity int) core.Uint32Index {
fakeDataFile := utils.NewFakeDataFile(totalUsableBlocks + 4)
if err := core.FormatDataFileIfNeeded(fakeDataFile); err != nil {
t.Fatal(err)
}
dataBuffer := dbio.NewDataBuffer(fakeDataFile, bufferFrames)
index := core.NewUint32Index(dataBuffer, branchCapacity, leafCapacity)
index.Init()
return index
}