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entry.go
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package ldb
import (
"github.com/FactomProject/FactomCode/common"
"github.com/FactomProject/goleveldb/leveldb"
"github.com/FactomProject/goleveldb/leveldb/util"
"log"
"strings"
)
// InsertEntry inserts an entry
func (db *LevelDb) InsertEntry(entrySha *common.Hash, binaryEntry *[]byte, entry *common.Entry, chainID *[]byte) (err error) {
db.dbLock.Lock()
defer db.dbLock.Unlock()
if db.lbatch == nil {
db.lbatch = new(leveldb.Batch)
}
defer db.lbatch.Reset()
var entryKey []byte = []byte{byte(TBL_ENTRY)}
entryKey = append(entryKey, entrySha.Bytes...)
db.lbatch.Put(entryKey, *binaryEntry)
err = db.lDb.Write(db.lbatch, db.wo)
if err != nil {
log.Println("batch failed %v\n", err)
return err
}
return nil
}
// FetchEntry gets an entry by hash from the database.
func (db *LevelDb) FetchEntryByHash(entrySha *common.Hash) (entry *common.Entry, err error) {
db.dbLock.Lock()
defer db.dbLock.Unlock()
var key []byte = []byte{byte(TBL_ENTRY)}
key = append(key, entrySha.Bytes...)
data, err := db.lDb.Get(key, db.ro)
if data != nil {
entry = new(common.Entry)
entry.UnmarshalBinary(data)
}
return entry, nil
}
/**********************************************
// FetchEntryInfoBranchByHash gets an EntryInfoBranch obj
func (db *LevelDb) FetchEntryInfoBranchByHash(entryHash *common.Hash) (entryInfoBranch *common.EntryInfoBranch, err error) {
entryInfoBranch = new(common.EntryInfoBranch)
entryInfoBranch.EntryHash = entryHash
entryInfoBranch.EntryInfo, _ = db.FetchEntryInfoByHash(entryHash)
if entryInfoBranch.EntryInfo != nil {
entryInfoBranch.EBInfo, _ = db.FetchEBInfoByHash(entryInfoBranch.EntryInfo.EBHash)
}
if entryInfoBranch.EBInfo != nil {
entryInfoBranch.DBInfo, _ = db.FetchDBInfoByHash(entryInfoBranch.EBInfo.DBHash)
}
return entryInfoBranch, nil
}
// FetchEntryInfoBranchByHash gets an EntryInfo obj
func (db *LevelDb) FetchEntryInfoByHash(entryHash *common.Hash) (entryInfo *common.EntryInfo, err error) {
db.dbLock.Lock()
defer db.dbLock.Unlock()
var key []byte = []byte{byte(TBL_ENTRY_INFO)}
key = append(key, entryHash.Bytes...)
data, err := db.lDb.Get(key, db.ro)
if data != nil {
entryInfo = new(common.EntryInfo)
entryInfo.UnmarshalBinary(data)
}
return entryInfo, nil
}
********************************************/
// Initialize External ID map for explorer search
func (db *LevelDb) InitializeExternalIDMap() (extIDMap map[string]bool, err error) {
var fromkey []byte = []byte{byte(TBL_ENTRY)} // Table Name (1 bytes)
var tokey []byte = []byte{byte(TBL_ENTRY + 1)} // Table Name (1 bytes)
extIDMap = make(map[string]bool)
iter := db.lDb.NewIterator(&util.Range{Start: fromkey, Limit: tokey}, db.ro)
for iter.Next() {
entry := new(common.Entry)
entry.UnmarshalBinary(iter.Value())
if entry.ExtIDs != nil {
for i := 0; i < len(entry.ExtIDs); i++ {
mapKey := string(iter.Key()[1:])
mapKey = mapKey + strings.ToLower(string(entry.ExtIDs[i]))
extIDMap[mapKey] = true
}
}
}
iter.Release()
err = iter.Error()
return extIDMap, nil
}