types: consolidate some file

types/util.go

@@ -0,0 +1,66 @@
+package types
+
+import (
+	"bytes"
+	"encoding/json"
+
+	"github.com/tendermint/go-wire/data"
+	cmn "github.com/tendermint/tmlibs/common"
+)
+
+//------------------------------------------------------------------------------
+
+// Validators is a list of validators that implements the Sort interface
+type Validators []*Validator
+
+func (v Validators) Len() int {
+	return len(v)
+}
+
+// XXX: doesn't distinguish same validator with different power
+func (v Validators) Less(i, j int) bool {
+	return bytes.Compare(v[i].PubKey, v[j].PubKey) <= 0
+}
+
+func (v Validators) Swap(i, j int) {
+	v1 := v[i]
+	v[i] = v[j]
+	v[j] = v1
+}
+
+func ValidatorsString(vs Validators) string {
+	s := make([]validatorPretty, len(vs))
+	for i, v := range vs {
+		s[i] = validatorPretty{v.PubKey, v.Power}
+	}
+	b, err := json.Marshal(s)
+	if err != nil {
+		cmn.PanicSanity(err.Error())
+	}
+	return string(b)
+}
+
+type validatorPretty struct {
+	PubKey data.Bytes `json:"pub_key"`
+	Power  int64      `json:"power"`
+}
+
+//------------------------------------------------------------------------------
+
+// KVPairInt is a helper method to build KV pair with an integer value.
+func KVPairInt(key string, val int64) *KVPair {
+	return &KVPair{
+		Key:       key,
+		ValueInt:  val,
+		ValueType: KVPair_INT,
+	}
+}
+
+// KVPairString is a helper method to build KV pair with a string value.
+func KVPairString(key, val string) *KVPair {
+	return &KVPair{
+		Key:         key,
+		ValueString: val,
+		ValueType:   KVPair_STRING,
+	}
+}