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policyrouter.go
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policyrouter.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package resourcesconfig
import (
"fmt"
"regexp"
"github.com/hyperledger/fabric/common/channelconfig"
"github.com/hyperledger/fabric/common/policies"
)
type policyRouter struct {
channelPolicyManager policies.Manager
resourcesPolicyManager policies.Manager
}
var minPathLength int
var (
channelPolicyMatcher = regexp.MustCompile(fmt.Sprintf("^/%s/", channelconfig.RootGroupKey))
resourcesPolicyMatcher = regexp.MustCompile(fmt.Sprintf("^/%s/", RootGroupKey))
)
// GetPolicy returns a policy and true if it was the policy requested, or false if it is the default policy
// It appropriately routes the request to the resource or channel policy manager, as required by the invocation.
func (pr *policyRouter) GetPolicy(id string) (policies.Policy, bool) {
switch {
case channelPolicyMatcher.MatchString(id):
return pr.channelPolicyManager.GetPolicy(id)
case resourcesPolicyMatcher.MatchString(id):
return pr.resourcesPolicyManager.GetPolicy(id)
default:
return nil, false
}
}
// Manager returns the sub-policy manager for a given path and whether it exists
func (pr *policyRouter) Manager(path []string) (policies.Manager, bool) {
if len(path) == 0 {
return pr, true
}
switch path[0] {
case channelconfig.RootGroupKey:
if pr.channelPolicyManager == nil {
return nil, false
}
return pr.channelPolicyManager.Manager(path[1:])
case RootGroupKey:
if pr.resourcesPolicyManager == nil {
return nil, false
}
return pr.resourcesPolicyManager.Manager(path[1:])
default:
return nil, false
}
}