func (self *clientWithPrefix) ListKeys(p *trib.Pattern, list *trib.List) error {
// escape colon
binName := colon.Escape(self.bin)
p.Prefix = binName + "::" + colon.Escape(p.Prefix)
p.Suffix = colon.Escape(p.Suffix)
// RPC call
err := self.originalClient.ListKeys(p, list)
if err != nil {
return err
}
// unescape and trim
for i, str := range list.L {
str = colon.Unescape(str)
list.L[i] = strings.TrimPrefix(str, self.bin+"::")
}
return nil
}
func (self *Storage) ListKeys(p *trib.Pattern, r *trib.List) error {
self.listLock.Lock()
defer self.listLock.Unlock()
ret := make([]string, 0, len(self.lists))
for k := range self.lists {
if p.Match(k) {
ret = append(ret, k)
}
}
r.L = ret
if Logging {
log.Printf("ListKeys(%q, %q) => %d", p.Prefix, p.Suffix, len(r.L))
for i, s := range r.L {
log.Printf(" %d: %q", i, s)
}
}
return nil
}
func (self *ReplicaClient) ListKeys(p *trib.Pattern, list *trib.List) error {
// escape colon
binName := colon.Escape(self.name)
p.Prefix = binName + "::" + p.Prefix
p.Suffix = p.Suffix + "list"
// RPC call
// get the list of logs of the key
// a list used as temp storage
tmpList := trib.List{make([]string, 0)}
for index, ad := range self.addr {
tempclient := &client{ad}
err1 := tempclient.ListKeys(p, &tmpList)
if err1 == nil {
break
} else if index < len(self.addr)-1 {
continue
} else {
return err1
}
}
blockCh := make(chan string, len(tmpList.L))
for _, str := range tmpList.L {
go func(str string) {
tmpList2 := trib.List{make([]string, 0)}
s1 := colon.Escape(self.name) + "::"
s2 := "list"
str = strings.TrimPrefix(str, s1)
str = strings.TrimSuffix(str, s2)
_ = self.ListGet(str, &tmpList2) // ignore this err?
if len(tmpList2.L) != 0 {
blockCh <- str
} else {
blockCh <- ""
}
}(str)
}
list.L = make([]string, 0, len(tmpList.L))
for _ = range tmpList.L {
result := <-blockCh
if result != "" {
list.L = append(list.L, result)
}
}
// unescape and trim
if len(list.L) > 0 {
for i, str := range list.L {
//str = colon.Unescape(str)
s1 := colon.Escape(self.name) + "::"
s2 := "valu"
str = strings.TrimPrefix(str, s1)
str = strings.TrimSuffix(str, s2)
list.L[i] = str
}
}
return nil
}