Merge 7b84d9f into 4b20833

node/chainSimulator/dataComponents.go

@@ -0,0 +1,94 @@
+package chainSimulator
+
+import (
+	"github.com/multiversx/mx-chain-core-go/data"
+	"github.com/multiversx/mx-chain-core-go/marshal"
+	"github.com/multiversx/mx-chain-go/dataRetriever"
+	"github.com/multiversx/mx-chain-go/dataRetriever/provider"
+	"github.com/multiversx/mx-chain-go/factory"
+)
+
+// ArgsDataComponentsHolder will hold the components needed for data components
+type ArgsDataComponentsHolder struct {
+	Chain              data.ChainHandler
+	StorageService     dataRetriever.StorageService
+	DataPool           dataRetriever.PoolsHolder
+	InternalMarshaller marshal.Marshalizer
+}
+
+type dataComponentsHolder struct {
+	chain             data.ChainHandler
+	storageService    dataRetriever.StorageService
+	dataPool          dataRetriever.PoolsHolder
+	miniBlockProvider factory.MiniBlockProvider
+}
+
+// CreateDataComponentsHolder will create the data components holder
+func CreateDataComponentsHolder(args ArgsDataComponentsHolder) (factory.DataComponentsHolder, error) {
+	miniBlockStorer, err := args.StorageService.GetStorer(dataRetriever.MiniBlockUnit)
+	if err != nil {
+		return nil, err
+	}
+
+	arg := provider.ArgMiniBlockProvider{
+		MiniBlockPool:    args.DataPool.MiniBlocks(),
+		MiniBlockStorage: miniBlockStorer,
+		Marshalizer:      args.InternalMarshaller,
+	}
+
+	miniBlocksProvider, err := provider.NewMiniBlockProvider(arg)
+	if err != nil {
+		return nil, err
+	}
+
+	instance := &dataComponentsHolder{
+		chain:             args.Chain,
+		storageService:    args.StorageService,
+		dataPool:          args.DataPool,
+		miniBlockProvider: miniBlocksProvider,
+	}
+
+	return instance, nil
+}
+
+// Blockchain will return the blockchain handler
+func (d *dataComponentsHolder) Blockchain() data.ChainHandler {
+	return d.chain
+}
+
+// SetBlockchain will set the blockchain handler
+func (d *dataComponentsHolder) SetBlockchain(chain data.ChainHandler) error {
+	d.chain = chain
+
+	return nil
+}
+
+// StorageService will return the storage service
+func (d *dataComponentsHolder) StorageService() dataRetriever.StorageService {
+	return d.storageService
+}
+
+// Datapool will return the data pool
+func (d *dataComponentsHolder) Datapool() dataRetriever.PoolsHolder {
+	return d.dataPool
+}
+
+// MiniBlocksProvider will return the mini blocks provider
+func (d *dataComponentsHolder) MiniBlocksProvider() factory.MiniBlockProvider {
+	return d.miniBlockProvider
+}
+
+// Clone will clone the data components holder
+func (d *dataComponentsHolder) Clone() interface{} {
+	return &dataComponentsHolder{
+		chain:             d.chain,
+		storageService:    d.storageService,
+		dataPool:          d.dataPool,
+		miniBlockProvider: d.miniBlockProvider,
+	}
+}
+
+// IsInterfaceNil returns true if there is no value under the interface
+func (d *dataComponentsHolder) IsInterfaceNil() bool {
+	return d == nil
+}