forked from hashicorp/consul
/
intention_match.go
45 lines (35 loc) · 1.07 KB
/
intention_match.go
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package cachetype
import (
"fmt"
"github.com/hashicorp/consul/agent/cache"
"github.com/hashicorp/consul/agent/structs"
)
// Recommended name for registration.
const IntentionMatchName = "intention-match"
// IntentionMatch supports fetching the intentions via match queries.
type IntentionMatch struct {
RPC RPC
}
func (c *IntentionMatch) Fetch(opts cache.FetchOptions, req cache.Request) (cache.FetchResult, error) {
var result cache.FetchResult
// The request should be an IntentionQueryRequest.
reqReal, ok := req.(*structs.IntentionQueryRequest)
if !ok {
return result, fmt.Errorf(
"Internal cache failure: request wrong type: %T", req)
}
// Set the minimum query index to our current index so we block
reqReal.MinQueryIndex = opts.MinIndex
reqReal.MaxQueryTime = opts.Timeout
// Fetch
var reply structs.IndexedIntentionMatches
if err := c.RPC.RPC("Intention.Match", reqReal, &reply); err != nil {
return result, err
}
result.Value = &reply
result.Index = reply.Index
return result, nil
}
func (c *IntentionMatch) SupportsBlocking() bool {
return true
}