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91 lines
2.2 KiB
91 lines
2.2 KiB
package main |
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import ( |
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"reflect" |
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"github.com/ugorji/go/codec" |
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"samhofi.us/x/keybase/types/chat1" |
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) |
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// KvStorePutStruct marshals an interface to JSON and sends to kvstore |
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func (b *bot) KVStorePutStruct(convIDstr chat1.ConvIDStr, v interface{}) error { |
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// marshal the struct to JSON |
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kvstoreDataString, err := encodeStructToJSONString(v) |
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if err != nil { |
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return err |
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} |
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// put the string in kvstore |
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err = b.KVStorePut(string(convIDstr), getTypeName(v), kvstoreDataString) |
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if err != nil { |
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return err |
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} |
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return nil |
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} |
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// KVStoreGetStruct gets a string from kvstore and unmarshals the JSON to a struct |
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func (b *bot) KVStoreGetStruct(convIDstr chat1.ConvIDStr, v interface{}) error { |
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// get the string from kvstore |
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result, err := b.KVStoreGet(string(convIDstr), getTypeName(v)) |
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if err != nil { |
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return err |
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} |
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// if there was no result just return and the struct is unmodified |
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if result == "" { |
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return nil |
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} |
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// unmarshal the string into JSON |
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err = decodeJSONStringToStruct(v, result) |
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if err != nil { |
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return err |
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} |
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return nil |
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} |
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// KVStorePut puts a string into kvstore given a key and namespace |
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func (b *bot) KVStorePut(namespace string, key string, value string) error { |
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_, err := b.k.KVPut(&b.config.KVStoreTeam, namespace, key, value) |
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if err != nil { |
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return err |
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} |
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return nil |
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} |
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// KVStoreGet gets a string from kvstore given a key and namespace |
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func (b *bot) KVStoreGet(namespace string, key string) (string, error) { |
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kvResult, err := b.k.KVGet(&b.config.KVStoreTeam, namespace, key) |
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if err != nil { |
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return "", err |
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} |
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return kvResult.EntryValue, nil |
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} |
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// getTypeName returns the name of a type, regardless of if its a pointer or not |
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func getTypeName(v interface{}) string { |
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t := reflect.TypeOf(v) |
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if t.Kind() == reflect.Ptr { |
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return t.Elem().Name() |
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} |
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return t.Name() |
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} |
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func encodeStructToJSONString(v interface{}) (string, error) { |
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jh := codecHandle() |
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var bytes []byte |
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err := codec.NewEncoderBytes(&bytes, jh).Encode(v) |
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if err != nil { |
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return "", err |
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} |
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result := string(bytes) |
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return result, nil |
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} |
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func decodeJSONStringToStruct(v interface{}, src string) error { |
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bytes := []byte(src) |
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jh := codecHandle() |
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return codec.NewDecoderBytes(bytes, jh).Decode(v) |
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} |
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func codecHandle() *codec.JsonHandle { |
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var jh codec.JsonHandle |
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return &jh |
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}
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