/
module.go
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/
module.go
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package modules
import (
"github.com/go-co-op/gocron"
"github.com/forbole/soljuno/types"
)
// Module represents a generic module without any particular handling of data
type Module interface {
// Name returns the module name
Name() string
}
// Modules represents a slice of Module objects
type Modules []Module
// FindByName returns the module having the given name inside the m slice.
// If no modules are found, returns nil and false.
func (m Modules) FindByName(name string) (module Module, found bool) {
for _, m := range m {
if m.Name() == name {
return m, true
}
}
return nil, false
}
// --------------------------------------------------------------------------------------------------------------------
type AdditionalOperationsModule interface {
// RunAdditionalOperations runs all the additional operations required by the module.
// This is the perfect place where to initialize all the operations that subscribe to websockets or other
// external sources.
// NOTE. This method will only be run ONCE before starting the parsing of the blocks.
RunAdditionalOperations() error
}
type AsyncOperationsModule interface {
// RunAsyncOperations runs all the async operations associated with a module.
// This method will be run on a separate goroutine, that will stop only when the user stops the entire process.
// For this reason, this method cannot return an error, and all raised errors should be signaled by panicking.
RunAsyncOperations()
}
type PeriodicOperationsModule interface {
// RegisterPeriodicOperations allows to register all the operations that will be run on a periodic basis.
// The given scheduler can be used to define the periodicity of each task.
// NOTE. This method will only be run ONCE during the module initialization.
RegisterPeriodicOperations(scheduler *gocron.Scheduler) error
RunPeriodicOperations() error
}
type BlockModule interface {
// HandleBlock allows to handle a single block.
// For convenience of use, all the transactions present inside the given block
// and the currently used database will be passed as well.
// For each transaction present inside the block, HandleTx will be called as well.
// NOTE. The returned error will be logged using the logging.LogBlockError method. All other modules' handlers
// will still be called.
HandleBlock(block types.Block) error
}
type TransactionModule interface {
// HandleTx handles a single transaction.
// For each instruction present inside the transaction, HandleInstruction will be called as well.
// NOTE. The returned error will be logged using the logging.LogTxError method. All other modules' handlers
// will still be called.
HandleTx(tx types.Tx) error
}
type InstructionModule interface {
// HandleInstruction handles a single instruction.
// For convenience of use, the index of the instruction inside the transaction and the transaction itself
// are passed as well.
// NOTE. The returned error will be logged using the logging.LogInstructionError method. All other modules' handlers
// will still be called.
HandleInstruction(instruction types.Instruction, tx types.Tx) error
}