add codec option
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
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@ -1,5 +1,5 @@
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// Package codec is an interface for encoding messages
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package codec // import "go.unistack.org/micro/v3/codec"
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package codec
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import (
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"errors"
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@ -13,8 +13,6 @@ var (
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)
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var (
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// DefaultMaxMsgSize specifies how much data codec can handle
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DefaultMaxMsgSize = 1024 * 1024 * 4 // 4Mb
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// DefaultCodec is the global default codec
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DefaultCodec = NewCodec()
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// DefaultTagName specifies struct tag name to control codec Marshal/Unmarshal
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@ -28,21 +26,10 @@ type Codec interface {
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String() string
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}
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// MarshalAppend calls codec.Marshal(v) and returns the data appended to buf.
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// If codec implements MarshalAppend, that is called instead.
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func MarshalAppend(buf []byte, c Codec, v interface{}, opts ...Option) ([]byte, error) {
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if nc, ok := c.(interface {
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MarshalAppend([]byte, interface{}, ...Option) ([]byte, error)
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}); ok {
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return nc.MarshalAppend(buf, v, opts...)
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}
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mbuf, err := c.Marshal(v, opts...)
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if err != nil {
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return nil, err
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}
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return append(buf, mbuf...), nil
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type CodecV2 interface {
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Marshal(buf []byte, v interface{}, opts ...Option) ([]byte, error)
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Unmarshal(buf []byte, v interface{}, opts ...Option) error
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String() string
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}
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// RawMessage is a raw encoded JSON value.
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@ -23,15 +23,8 @@ type Options struct {
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Context context.Context
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// TagName specifies tag name in struct to control codec
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TagName string
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// MaxMsgSize specifies max messages size that reads by codec
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MaxMsgSize int
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}
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// MaxMsgSize sets the max message size
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func MaxMsgSize(n int) Option {
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return func(o *Options) {
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o.MaxMsgSize = n
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}
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// Flatten specifies that struct must be analyzed for flatten tag
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Flatten bool
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}
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// TagName sets the codec tag name in struct
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@ -69,8 +62,8 @@ func NewOptions(opts ...Option) Options {
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Logger: logger.DefaultLogger,
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Meter: meter.DefaultMeter,
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Tracer: tracer.DefaultTracer,
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MaxMsgSize: DefaultMaxMsgSize,
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TagName: DefaultTagName,
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Flatten: false,
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}
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for _, o := range opts {
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