ExternalVendorCode/corda
1
0
Fork 0
mirror of https://github.com/corda/corda.git synced 2025-06-01 07:00:54 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Raft Notary: remove snapshotting

Browse Source
This commit is contained in:
Thomas Schroeter 2017-11-09 15:36:42 +00:00
parent 887dc68a45
commit cf33be66ff
1 changed files with 1 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
node/src/main/kotlin/net/corda/node/services/transactions/DistributedImmutableMap.kt
View File

@ -19,7 +19,7 @@ import java.util.LinkedHashMap
* to disk, and sharing them across the cluster. A new node joining the cluster will have to obtain and install a snapshot
* containing the entire JDBC table contents.
*/
class DistributedImmutableMap<K : Any, V : Any, E, EK>(val db: CordaPersistence, createMap: () -> AppendOnlyPersistentMap<K, V, E, EK>) : StateMachine(), Snapshottable {
class DistributedImmutableMap<K : Any, V : Any, E, EK>(val db: CordaPersistence, createMap: () -> AppendOnlyPersistentMap<K, V, E, EK>) : StateMachine() {
companion object {
private val log = loggerFor<DistributedImmutableMap<*, *, *, *>>()
}
@ -70,29 +70,4 @@ class DistributedImmutableMap<K : Any, V : Any, E, EK>(val db: CordaPersistence,
return db.transaction { map.size }
}
}
/**
* Writes out all [map] entries to disk. Note that this operation does not load all entries into memory, as the
* [SnapshotWriter] is using a disk-backed buffer internally, and iterating map entries results in only a
* fixed number of recently accessed entries to ever be kept in memory.
*/
override fun snapshot(writer: SnapshotWriter) {
db.transaction {
writer.writeInt(map.size)
map.allPersisted().forEach { writer.writeObject(it.first to it.second) }
}
}
/** Reads entries from disk and adds them to [map]. */
override fun install(reader: SnapshotReader) {
val size = reader.readInt()
db.transaction {
map.clear()
// TODO: read & put entries in batches
for (i in 1..size) {
val (key, value) = reader.readObject<Pair<K, V>>()
map[key] = value
}
}
}
}